diff --git a/Marlin/Conditionals_post.h b/Marlin/Conditionals_post.h
index 35d3772e2..c934d74f4 100644
--- a/Marlin/Conditionals_post.h
+++ b/Marlin/Conditionals_post.h
@@ -349,6 +349,15 @@
     #define BED_USES_THERMISTOR
   #endif
 
+  #if TEMP_SENSOR_CHAMBER <= -2
+    #error "MAX6675 / MAX31855 Thermocouples not supported for TEMP_SENSOR_CHAMBER"
+  #elif TEMP_SENSOR_CHAMBER == -1
+    #define CHAMBER_USES_AD595
+  #elif TEMP_SENSOR_CHAMBER > 0
+    #define THERMISTORCHAMBER TEMP_SENSOR_CHAMBER
+    #define CHAMBER_USES_THERMISTOR
+  #endif
+
   /**
    * Flags for PID handling
    */
@@ -686,7 +695,8 @@
   #define HAS_TEMP_4 (PIN_EXISTS(TEMP_4) && TEMP_SENSOR_4 != 0 && TEMP_SENSOR_4 > -2)
   #define HAS_TEMP_HOTEND (HAS_TEMP_0 || ENABLED(HEATER_0_USES_MAX6675))
   #define HAS_TEMP_BED (PIN_EXISTS(TEMP_BED) && TEMP_SENSOR_BED != 0 && TEMP_SENSOR_BED > -2)
-  #define HAS_TEMP_SENSOR (HAS_TEMP_HOTEND || HAS_TEMP_BED)
+  #define HAS_TEMP_CHAMBER (PIN_EXISTS(TEMP_CHAMBER) && TEMP_SENSOR_CHAMBER != 0 && TEMP_SENSOR_CHAMBER > -2)
+  #define HAS_TEMP_SENSOR (HAS_TEMP_HOTEND || HAS_TEMP_BED || HAS_TEMP_CHAMBER)
 
   // Heaters
   #define HAS_HEATER_0 (PIN_EXISTS(HEATER_0))
@@ -707,7 +717,8 @@
   #define HAS_AUTO_FAN_2 (HOTENDS > 2 && PIN_EXISTS(E2_AUTO_FAN))
   #define HAS_AUTO_FAN_3 (HOTENDS > 3 && PIN_EXISTS(E3_AUTO_FAN))
   #define HAS_AUTO_FAN_4 (HOTENDS > 4 && PIN_EXISTS(E4_AUTO_FAN))
-  #define HAS_AUTO_FAN (HAS_AUTO_FAN_0 || HAS_AUTO_FAN_1 || HAS_AUTO_FAN_2 || HAS_AUTO_FAN_3)
+  #define HAS_AUTO_CHAMBER_FAN (PIN_EXISTS(CHAMBER_AUTO_FAN))
+  #define HAS_AUTO_FAN (HAS_AUTO_FAN_0 || HAS_AUTO_FAN_1 || HAS_AUTO_FAN_2 || HAS_AUTO_FAN_3 || HAS_AUTO_CHAMBER_FAN)
   #define AUTO_1_IS_0 (E1_AUTO_FAN_PIN == E0_AUTO_FAN_PIN)
   #define AUTO_2_IS_0 (E2_AUTO_FAN_PIN == E0_AUTO_FAN_PIN)
   #define AUTO_2_IS_1 (E2_AUTO_FAN_PIN == E1_AUTO_FAN_PIN)
@@ -718,6 +729,11 @@
   #define AUTO_4_IS_1 (E4_AUTO_FAN_PIN == E1_AUTO_FAN_PIN)
   #define AUTO_4_IS_2 (E4_AUTO_FAN_PIN == E2_AUTO_FAN_PIN)
   #define AUTO_4_IS_3 (E4_AUTO_FAN_PIN == E3_AUTO_FAN_PIN)
+  #define AUTO_CHAMBER_IS_0 (CHAMBER_AUTO_FAN_PIN == E0_AUTO_FAN_PIN)
+  #define AUTO_CHAMBER_IS_1 (CHAMBER_AUTO_FAN_PIN == E1_AUTO_FAN_PIN)
+  #define AUTO_CHAMBER_IS_2 (CHAMBER_AUTO_FAN_PIN == E2_AUTO_FAN_PIN)
+  #define AUTO_CHAMBER_IS_3 (CHAMBER_AUTO_FAN_PIN == E3_AUTO_FAN_PIN)
+  #define AUTO_CHAMBER_IS_4 (CHAMBER_AUTO_FAN_PIN == E4_AUTO_FAN_PIN)
 
   // Other fans
   #define HAS_FAN0 (PIN_EXISTS(FAN))
diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 7bfad6d65..9900503ee 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 53db11dc7..aeb03b369 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h b/Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h
index d22f2a6dd..c486d28d5 100644
--- a/Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h
+++ b/Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 7
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/AlephObjects/TAZ4/Configuration_adv.h b/Marlin/example_configurations/AlephObjects/TAZ4/Configuration_adv.h
index a668758c0..eb2e197be 100644
--- a/Marlin/example_configurations/AlephObjects/TAZ4/Configuration_adv.h
+++ b/Marlin/example_configurations/AlephObjects/TAZ4/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/AliExpress/CL-260/Configuration.h b/Marlin/example_configurations/AliExpress/CL-260/Configuration.h
index b91aef1e4..dc2f0e3b3 100644
--- a/Marlin/example_configurations/AliExpress/CL-260/Configuration.h
+++ b/Marlin/example_configurations/AliExpress/CL-260/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Anet/A6/Configuration.h b/Marlin/example_configurations/Anet/A6/Configuration.h
index 773787d3c..d121fb48c 100644
--- a/Marlin/example_configurations/Anet/A6/Configuration.h
+++ b/Marlin/example_configurations/Anet/A6/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Anet/A6/Configuration_adv.h b/Marlin/example_configurations/Anet/A6/Configuration_adv.h
index 0af246227..869975893 100644
--- a/Marlin/example_configurations/Anet/A6/Configuration_adv.h
+++ b/Marlin/example_configurations/Anet/A6/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Anet/A8/Configuration.h b/Marlin/example_configurations/Anet/A8/Configuration.h
index 297f1379b..3965fe02d 100644
--- a/Marlin/example_configurations/Anet/A8/Configuration.h
+++ b/Marlin/example_configurations/Anet/A8/Configuration.h
@@ -308,6 +308,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Anet/A8/Configuration_adv.h b/Marlin/example_configurations/Anet/A8/Configuration_adv.h
index b85ee7592..f4af5e3d4 100644
--- a/Marlin/example_configurations/Anet/A8/Configuration_adv.h
+++ b/Marlin/example_configurations/Anet/A8/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration.h b/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration.h
index bc95ed089..53a57465f 100644
--- a/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration.h
+++ b/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration_adv.h b/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration_adv.h
index 4e9e8dacf..bd6e7daa0 100644
--- a/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration_adv.h
+++ b/Marlin/example_configurations/BIBO/TouchX/Cyclops/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/BIBO/TouchX/default/Configuration.h b/Marlin/example_configurations/BIBO/TouchX/default/Configuration.h
index 4da415038..5533ddf5d 100644
--- a/Marlin/example_configurations/BIBO/TouchX/default/Configuration.h
+++ b/Marlin/example_configurations/BIBO/TouchX/default/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 60
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/BIBO/TouchX/default/Configuration_adv.h b/Marlin/example_configurations/BIBO/TouchX/default/Configuration_adv.h
index 53db11dc7..aeb03b369 100644
--- a/Marlin/example_configurations/BIBO/TouchX/default/Configuration_adv.h
+++ b/Marlin/example_configurations/BIBO/TouchX/default/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/BQ/Hephestos/Configuration.h b/Marlin/example_configurations/BQ/Hephestos/Configuration.h
index 87139acc6..be0898312 100644
--- a/Marlin/example_configurations/BQ/Hephestos/Configuration.h
+++ b/Marlin/example_configurations/BQ/Hephestos/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/BQ/Hephestos/Configuration_adv.h b/Marlin/example_configurations/BQ/Hephestos/Configuration_adv.h
index 297a70787..0734de9bd 100644
--- a/Marlin/example_configurations/BQ/Hephestos/Configuration_adv.h
+++ b/Marlin/example_configurations/BQ/Hephestos/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/BQ/Hephestos_2/Configuration.h b/Marlin/example_configurations/BQ/Hephestos_2/Configuration.h
index caf41c119..ce64bc8b8 100644
--- a/Marlin/example_configurations/BQ/Hephestos_2/Configuration.h
+++ b/Marlin/example_configurations/BQ/Hephestos_2/Configuration.h
@@ -315,6 +315,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/BQ/Hephestos_2/Configuration_adv.h b/Marlin/example_configurations/BQ/Hephestos_2/Configuration_adv.h
index 1579e0708..2863a5ae8 100644
--- a/Marlin/example_configurations/BQ/Hephestos_2/Configuration_adv.h
+++ b/Marlin/example_configurations/BQ/Hephestos_2/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/BQ/WITBOX/Configuration.h b/Marlin/example_configurations/BQ/WITBOX/Configuration.h
index 957f0f159..7c81a11bb 100644
--- a/Marlin/example_configurations/BQ/WITBOX/Configuration.h
+++ b/Marlin/example_configurations/BQ/WITBOX/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h b/Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h
index 297a70787..0734de9bd 100644
--- a/Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h
+++ b/Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Cartesio/Configuration.h b/Marlin/example_configurations/Cartesio/Configuration.h
index 6d1bc138d..eaae4d3ff 100644
--- a/Marlin/example_configurations/Cartesio/Configuration.h
+++ b/Marlin/example_configurations/Cartesio/Configuration.h
@@ -308,6 +308,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Cartesio/Configuration_adv.h b/Marlin/example_configurations/Cartesio/Configuration_adv.h
index 175686fcf..958db4816 100644
--- a/Marlin/example_configurations/Cartesio/Configuration_adv.h
+++ b/Marlin/example_configurations/Cartesio/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 35
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Creality/CR-10/Configuration.h b/Marlin/example_configurations/Creality/CR-10/Configuration.h
index a2bbb1fb1..62e310834 100755
--- a/Marlin/example_configurations/Creality/CR-10/Configuration.h
+++ b/Marlin/example_configurations/Creality/CR-10/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Creality/CR-10/Configuration_adv.h b/Marlin/example_configurations/Creality/CR-10/Configuration_adv.h
index 5f2c84417..3cd432583 100755
--- a/Marlin/example_configurations/Creality/CR-10/Configuration_adv.h
+++ b/Marlin/example_configurations/Creality/CR-10/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Creality/CR-10S/Configuration.h b/Marlin/example_configurations/Creality/CR-10S/Configuration.h
index a8236fbe2..77397831c 100644
--- a/Marlin/example_configurations/Creality/CR-10S/Configuration.h
+++ b/Marlin/example_configurations/Creality/CR-10S/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Creality/CR-10S/Configuration_adv.h b/Marlin/example_configurations/Creality/CR-10S/Configuration_adv.h
index 3b6937260..252cd7340 100644
--- a/Marlin/example_configurations/Creality/CR-10S/Configuration_adv.h
+++ b/Marlin/example_configurations/Creality/CR-10S/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Creality/CR-10mini/Configuration.h b/Marlin/example_configurations/Creality/CR-10mini/Configuration.h
index 2b6de192d..903e2c0b7 100644
--- a/Marlin/example_configurations/Creality/CR-10mini/Configuration.h
+++ b/Marlin/example_configurations/Creality/CR-10mini/Configuration.h
@@ -316,6 +316,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Creality/CR-10mini/Configuration_adv.h b/Marlin/example_configurations/Creality/CR-10mini/Configuration_adv.h
index c4b43ff63..49f8519af 100644
--- a/Marlin/example_configurations/Creality/CR-10mini/Configuration_adv.h
+++ b/Marlin/example_configurations/Creality/CR-10mini/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Creality/Ender-2/Configuration.h b/Marlin/example_configurations/Creality/Ender-2/Configuration.h
index 444f99342..0ed10900b 100644
--- a/Marlin/example_configurations/Creality/Ender-2/Configuration.h
+++ b/Marlin/example_configurations/Creality/Ender-2/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Creality/Ender-2/Configuration_adv.h b/Marlin/example_configurations/Creality/Ender-2/Configuration_adv.h
index 5a3f1ab47..4ec69dd3f 100644
--- a/Marlin/example_configurations/Creality/Ender-2/Configuration_adv.h
+++ b/Marlin/example_configurations/Creality/Ender-2/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Creality/Ender-4/Configuration.h b/Marlin/example_configurations/Creality/Ender-4/Configuration.h
index 3d1c08999..97e41db06 100644
--- a/Marlin/example_configurations/Creality/Ender-4/Configuration.h
+++ b/Marlin/example_configurations/Creality/Ender-4/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Creality/Ender-4/Configuration_adv.h b/Marlin/example_configurations/Creality/Ender-4/Configuration_adv.h
index 29521178c..2485efa3c 100644
--- a/Marlin/example_configurations/Creality/Ender-4/Configuration_adv.h
+++ b/Marlin/example_configurations/Creality/Ender-4/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Felix/Configuration.h b/Marlin/example_configurations/Felix/Configuration.h
index 306218b42..461fb6cb0 100644
--- a/Marlin/example_configurations/Felix/Configuration.h
+++ b/Marlin/example_configurations/Felix/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Felix/Configuration_adv.h b/Marlin/example_configurations/Felix/Configuration_adv.h
index 86c4d2c12..09bfc93f4 100644
--- a/Marlin/example_configurations/Felix/Configuration_adv.h
+++ b/Marlin/example_configurations/Felix/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Felix/DUAL/Configuration.h b/Marlin/example_configurations/Felix/DUAL/Configuration.h
index 1ffb722b3..c3cbb9106 100644
--- a/Marlin/example_configurations/Felix/DUAL/Configuration.h
+++ b/Marlin/example_configurations/Felix/DUAL/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/FolgerTech/i3-2020/Configuration.h b/Marlin/example_configurations/FolgerTech/i3-2020/Configuration.h
index f5c901c89..6d37c8206 100644
--- a/Marlin/example_configurations/FolgerTech/i3-2020/Configuration.h
+++ b/Marlin/example_configurations/FolgerTech/i3-2020/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/FolgerTech/i3-2020/Configuration_adv.h b/Marlin/example_configurations/FolgerTech/i3-2020/Configuration_adv.h
index 379b4f78c..6a2913abf 100644
--- a/Marlin/example_configurations/FolgerTech/i3-2020/Configuration_adv.h
+++ b/Marlin/example_configurations/FolgerTech/i3-2020/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Geeetech/GT2560/Configuration.h b/Marlin/example_configurations/Geeetech/GT2560/Configuration.h
index b6d262d6a..d47b98196 100644
--- a/Marlin/example_configurations/Geeetech/GT2560/Configuration.h
+++ b/Marlin/example_configurations/Geeetech/GT2560/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Geeetech/I3_Pro_X-GT2560/Configuration.h b/Marlin/example_configurations/Geeetech/I3_Pro_X-GT2560/Configuration.h
index cd9c06a36..dc158e63d 100644
--- a/Marlin/example_configurations/Geeetech/I3_Pro_X-GT2560/Configuration.h
+++ b/Marlin/example_configurations/Geeetech/I3_Pro_X-GT2560/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h b/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h
index 541ef4404..812acf670 100644
--- a/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h	
+++ b/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/bltouch/Configuration.h	
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h b/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h
index e8ba36cf5..bbd2feaa0 100644
--- a/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h	
+++ b/Marlin/example_configurations/Geeetech/Prusa i3 Pro B/noprobe/Configuration.h	
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Infitary/i3-M508/Configuration.h b/Marlin/example_configurations/Infitary/i3-M508/Configuration.h
index 4a759c67a..6f464f8af 100644
--- a/Marlin/example_configurations/Infitary/i3-M508/Configuration.h
+++ b/Marlin/example_configurations/Infitary/i3-M508/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Infitary/i3-M508/Configuration_adv.h b/Marlin/example_configurations/Infitary/i3-M508/Configuration_adv.h
index 2d944648a..3fbfb4137 100644
--- a/Marlin/example_configurations/Infitary/i3-M508/Configuration_adv.h
+++ b/Marlin/example_configurations/Infitary/i3-M508/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/JGAurora/A5/Configuration.h b/Marlin/example_configurations/JGAurora/A5/Configuration.h
index 64a4f9408..3dbc80ad5 100644
--- a/Marlin/example_configurations/JGAurora/A5/Configuration.h
+++ b/Marlin/example_configurations/JGAurora/A5/Configuration.h
@@ -312,6 +312,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1 // measured to be satisfactorily accurate on centre of bed within +/- 1 degC.
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/JGAurora/A5/Configuration_adv.h b/Marlin/example_configurations/JGAurora/A5/Configuration_adv.h
index aade0a895..904d192af 100644
--- a/Marlin/example_configurations/JGAurora/A5/Configuration_adv.h
+++ b/Marlin/example_configurations/JGAurora/A5/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Malyan/M150/Configuration.h b/Marlin/example_configurations/Malyan/M150/Configuration.h
index 8a7211e0f..cb44e2739 100644
--- a/Marlin/example_configurations/Malyan/M150/Configuration.h
+++ b/Marlin/example_configurations/Malyan/M150/Configuration.h
@@ -315,6 +315,7 @@
 // For Malyan M150, some discussions around changing the TEMP_SENSOR_BED from 1 to 3 on a french discussion board.
 // The reasons are inconclusive so I leave at 1
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Malyan/M150/Configuration_adv.h b/Marlin/example_configurations/Malyan/M150/Configuration_adv.h
index a05286034..98c3d37ac 100644
--- a/Marlin/example_configurations/Malyan/M150/Configuration_adv.h
+++ b/Marlin/example_configurations/Malyan/M150/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Micromake/C1/basic/Configuration.h b/Marlin/example_configurations/Micromake/C1/basic/Configuration.h
index c93bdfa89..2d745809e 100644
--- a/Marlin/example_configurations/Micromake/C1/basic/Configuration.h
+++ b/Marlin/example_configurations/Micromake/C1/basic/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Micromake/C1/enhanced/Configuration.h b/Marlin/example_configurations/Micromake/C1/enhanced/Configuration.h
index b263dfcdf..242ba816e 100644
--- a/Marlin/example_configurations/Micromake/C1/enhanced/Configuration.h
+++ b/Marlin/example_configurations/Micromake/C1/enhanced/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Micromake/C1/enhanced/Configuration_adv.h b/Marlin/example_configurations/Micromake/C1/enhanced/Configuration_adv.h
index ba924c579..94063d405 100644
--- a/Marlin/example_configurations/Micromake/C1/enhanced/Configuration_adv.h
+++ b/Marlin/example_configurations/Micromake/C1/enhanced/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
index 9db7f6580..c1066c9db 100644
--- a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
+++ b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/RigidBot/Configuration.h b/Marlin/example_configurations/RigidBot/Configuration.h
index 50db58ab5..026b7bb6e 100644
--- a/Marlin/example_configurations/RigidBot/Configuration.h
+++ b/Marlin/example_configurations/RigidBot/Configuration.h
@@ -310,6 +310,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/RigidBot/Configuration_adv.h b/Marlin/example_configurations/RigidBot/Configuration_adv.h
index a7e58d5fc..c1ed72290 100644
--- a/Marlin/example_configurations/RigidBot/Configuration_adv.h
+++ b/Marlin/example_configurations/RigidBot/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/SCARA/Configuration.h b/Marlin/example_configurations/SCARA/Configuration.h
index 97658bbaf..7b3bfb290 100644
--- a/Marlin/example_configurations/SCARA/Configuration.h
+++ b/Marlin/example_configurations/SCARA/Configuration.h
@@ -337,6 +337,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/SCARA/Configuration_adv.h b/Marlin/example_configurations/SCARA/Configuration_adv.h
index e1fe0a37e..ea385710a 100644
--- a/Marlin/example_configurations/SCARA/Configuration_adv.h
+++ b/Marlin/example_configurations/SCARA/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Sanguinololu/Configuration.h b/Marlin/example_configurations/Sanguinololu/Configuration.h
index d1b6300ef..086b7724b 100644
--- a/Marlin/example_configurations/Sanguinololu/Configuration.h
+++ b/Marlin/example_configurations/Sanguinololu/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Sanguinololu/Configuration_adv.h b/Marlin/example_configurations/Sanguinololu/Configuration_adv.h
index e1c1c3742..d449683fe 100644
--- a/Marlin/example_configurations/Sanguinololu/Configuration_adv.h
+++ b/Marlin/example_configurations/Sanguinololu/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/TinyBoy2/Configuration.h b/Marlin/example_configurations/TinyBoy2/Configuration.h
index 07a748b47..a0e8cbcd3 100644
--- a/Marlin/example_configurations/TinyBoy2/Configuration.h
+++ b/Marlin/example_configurations/TinyBoy2/Configuration.h
@@ -334,6 +334,7 @@
 #else
   #define TEMP_SENSOR_BED 0
 #endif
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/TinyBoy2/Configuration_adv.h b/Marlin/example_configurations/TinyBoy2/Configuration_adv.h
index 061958c38..63c35c7e9 100644
--- a/Marlin/example_configurations/TinyBoy2/Configuration_adv.h
+++ b/Marlin/example_configurations/TinyBoy2/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Tronxy/X1/Configuration.h b/Marlin/example_configurations/Tronxy/X1/Configuration.h
index 53c76ce00..0ab8ac262 100644
--- a/Marlin/example_configurations/Tronxy/X1/Configuration.h
+++ b/Marlin/example_configurations/Tronxy/X1/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Tronxy/X5S/Configuration.h b/Marlin/example_configurations/Tronxy/X5S/Configuration.h
index b028d6e86..3e905e973 100644
--- a/Marlin/example_configurations/Tronxy/X5S/Configuration.h
+++ b/Marlin/example_configurations/Tronxy/X5S/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Tronxy/XY100/Configuration.h b/Marlin/example_configurations/Tronxy/XY100/Configuration.h
index 0129d99df..a7afbffab 100644
--- a/Marlin/example_configurations/Tronxy/XY100/Configuration.h
+++ b/Marlin/example_configurations/Tronxy/XY100/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Velleman/K8200/Configuration.h b/Marlin/example_configurations/Velleman/K8200/Configuration.h
index e058e651a..2ba14cfbe 100644
--- a/Marlin/example_configurations/Velleman/K8200/Configuration.h
+++ b/Marlin/example_configurations/Velleman/K8200/Configuration.h
@@ -327,6 +327,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Velleman/K8200/Configuration_adv.h b/Marlin/example_configurations/Velleman/K8200/Configuration_adv.h
index 7b896dbfd..ee8b55f62 100644
--- a/Marlin/example_configurations/Velleman/K8200/Configuration_adv.h
+++ b/Marlin/example_configurations/Velleman/K8200/Configuration_adv.h
@@ -243,6 +243,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Velleman/K8400/Configuration.h b/Marlin/example_configurations/Velleman/K8400/Configuration.h
index 209281925..20fc46057 100644
--- a/Marlin/example_configurations/Velleman/K8400/Configuration.h
+++ b/Marlin/example_configurations/Velleman/K8400/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Velleman/K8400/Configuration_adv.h b/Marlin/example_configurations/Velleman/K8400/Configuration_adv.h
index b682984ed..3b14e08dd 100644
--- a/Marlin/example_configurations/Velleman/K8400/Configuration_adv.h
+++ b/Marlin/example_configurations/Velleman/K8400/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h b/Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h
index 3edfd811f..c3625c502 100644
--- a/Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h
+++ b/Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration.h b/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration.h
index 25b5b47aa..f04f1982d 100644
--- a/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration.h	
+++ b/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration.h	
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration_adv.h b/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration_adv.h
index 8de2d54c1..fefd91e84 100644
--- a/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration_adv.h	
+++ b/Marlin/example_configurations/Wanhao/Duplicator 6/Configuration_adv.h	
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/adafruit/ST7565/Configuration.h b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
index 8efe3c039..29adbd326 100644
--- a/Marlin/example_configurations/adafruit/ST7565/Configuration.h
+++ b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h b/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h
index 11983c9ff..41c167cef 100644
--- a/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h
+++ b/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h b/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h
index 540105b12..37b737ee3 100644
--- a/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/FLSUN/kossel/Configuration.h b/Marlin/example_configurations/delta/FLSUN/kossel/Configuration.h
index 037da69da..73d6f8fe5 100644
--- a/Marlin/example_configurations/delta/FLSUN/kossel/Configuration.h
+++ b/Marlin/example_configurations/delta/FLSUN/kossel/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/FLSUN/kossel/Configuration_adv.h b/Marlin/example_configurations/delta/FLSUN/kossel/Configuration_adv.h
index e6fb5761f..5ad73f121 100644
--- a/Marlin/example_configurations/delta/FLSUN/kossel/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/FLSUN/kossel/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h
index b3f50c717..f7630775c 100644
--- a/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h b/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h
index d81a586a7..ea7a82ea7 100644
--- a/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/Hatchbox_Alpha/Configuration.h b/Marlin/example_configurations/delta/Hatchbox_Alpha/Configuration.h
index eb0eb7052..425082125 100644
--- a/Marlin/example_configurations/delta/Hatchbox_Alpha/Configuration.h
+++ b/Marlin/example_configurations/delta/Hatchbox_Alpha/Configuration.h
@@ -312,6 +312,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 1
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index 015fb1713..a2769e353 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/generic/Configuration_adv.h b/Marlin/example_configurations/delta/generic/Configuration_adv.h
index d81a586a7..ea7a82ea7 100644
--- a/Marlin/example_configurations/delta/generic/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/generic/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
index 01cd94a9b..b86609447 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 11
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
index d81a586a7..ea7a82ea7 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration.h b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
index 5f6084f70..279a32960 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
@@ -311,6 +311,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
index 6424652ac..d3e808712 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
@@ -235,6 +235,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration.h b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
index a35667990..b749f8837 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
index 90064c690..968927780 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h b/Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h
index b96b8f074..d7362b009 100644
--- a/Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h
+++ b/Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h
@@ -315,6 +315,7 @@
                              // to print on glass.   And I'm using a 400mm x 400mm silicon heat pad powered through
                              // a Fortek SSR to do it.   If you are using an unaltered gCreate machine, this needs
                              // to be set to 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/gCreate/gMax1.5+/Configuration_adv.h b/Marlin/example_configurations/gCreate/gMax1.5+/Configuration_adv.h
index 86c12447d..4a4ab6962 100644
--- a/Marlin/example_configurations/gCreate/gMax1.5+/Configuration_adv.h
+++ b/Marlin/example_configurations/gCreate/gMax1.5+/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/makibox/Configuration.h b/Marlin/example_configurations/makibox/Configuration.h
index e03211229..27ac33841 100644
--- a/Marlin/example_configurations/makibox/Configuration.h
+++ b/Marlin/example_configurations/makibox/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 12
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/makibox/Configuration_adv.h b/Marlin/example_configurations/makibox/Configuration_adv.h
index a1137886b..9d4bef8a1 100644
--- a/Marlin/example_configurations/makibox/Configuration_adv.h
+++ b/Marlin/example_configurations/makibox/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration.h b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
index 64fa0c21b..5cf2d820f 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 5
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
index b68d06043..56772b6db 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/wt150/Configuration.h b/Marlin/example_configurations/wt150/Configuration.h
index 0a9e76f5a..b310a48f1 100644
--- a/Marlin/example_configurations/wt150/Configuration.h
+++ b/Marlin/example_configurations/wt150/Configuration.h
@@ -307,6 +307,7 @@
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_4 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_CHAMBER 0
 
 // Dummy thermistor constant temperature readings, for use with 998 and 999
 #define DUMMY_THERMISTOR_998_VALUE 25
diff --git a/Marlin/example_configurations/wt150/Configuration_adv.h b/Marlin/example_configurations/wt150/Configuration_adv.h
index 6c81d698d..a8b781f13 100644
--- a/Marlin/example_configurations/wt150/Configuration_adv.h
+++ b/Marlin/example_configurations/wt150/Configuration_adv.h
@@ -230,6 +230,7 @@
 #define E2_AUTO_FAN_PIN -1
 #define E3_AUTO_FAN_PIN -1
 #define E4_AUTO_FAN_PIN -1
+#define CHAMBER_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/fastio.h b/Marlin/fastio.h
index 50a37ffb8..c7e1a20bc 100644
--- a/Marlin/fastio.h
+++ b/Marlin/fastio.h
@@ -238,11 +238,11 @@ enum ClockSource2 : char {
  * PWM availability macros
  */
 
-//find out which harware PWMs are already in use
+// Determine which harware PWMs are already in use
 #if PIN_EXISTS(CONTROLLER_FAN)
-  #define PWM_CHK_FAN_B(p) (p == CONTROLLER_FAN_PIN || p == E0_AUTO_FAN_PIN || p ==  E1_AUTO_FAN_PIN || p ==  E2_AUTO_FAN_PIN || p ==  E3_AUTO_FAN_PIN || p ==  E4_AUTO_FAN_PIN)
+  #define PWM_CHK_FAN_B(p) (p == CONTROLLER_FAN_PIN || p == E0_AUTO_FAN_PIN || p ==  E1_AUTO_FAN_PIN || p ==  E2_AUTO_FAN_PIN || p ==  E3_AUTO_FAN_PIN || p ==  E4_AUTO_FAN_PIN || p == CHAMBER_AUTO_FAN_PIN)
 #else
-  #define PWM_CHK_FAN_B(p) (p == E0_AUTO_FAN_PIN || p ==  E1_AUTO_FAN_PIN || p ==  E2_AUTO_FAN_PIN || p ==  E3_AUTO_FAN_PIN || p ==  E4_AUTO_FAN_PIN)
+  #define PWM_CHK_FAN_B(p) (p == E0_AUTO_FAN_PIN || p ==  E1_AUTO_FAN_PIN || p ==  E2_AUTO_FAN_PIN || p ==  E3_AUTO_FAN_PIN || p ==  E4_AUTO_FAN_PIN || p == CHAMBER_AUTO_FAN_PIN)
 #endif
 
 #if PIN_EXISTS(FAN) || PIN_EXISTS(FAN1) || PIN_EXISTS(FAN2)
diff --git a/Marlin/pins.h b/Marlin/pins.h
index 73057067f..ede431b55 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -521,6 +521,13 @@
     #define E4_AUTO_FAN_PIN -1
   #endif
 #endif
+#ifndef CHAMBER_AUTO_FAN_PIN
+  #ifdef ORIG_CHAMBER_AUTO_FAN_PIN
+    #define CHAMBER_AUTO_FAN_PIN ORIG_CHAMBER_AUTO_FAN_PIN
+  #else
+    #define CHAMBER_AUTO_FAN_PIN -1
+  #endif
+#endif
 
 // List of pins which to ignore when asked to change by gcode, 0 and 1 are RX and TX, do not mess with those!
 #define _E0_PINS E0_STEP_PIN, E0_DIR_PIN, E0_ENABLE_PIN, E0_MS1_PIN, E0_MS2_PIN, E0_CS_PIN,
diff --git a/Marlin/pinsDebug_list.h b/Marlin/pinsDebug_list.h
index dd17485b4..e19858d52 100644
--- a/Marlin/pinsDebug_list.h
+++ b/Marlin/pinsDebug_list.h
@@ -83,9 +83,6 @@
 #if PIN_EXISTS(TEMP_CHAMBER) && TEMP_CHAMBER_PIN < NUM_ANALOG_INPUTS
   REPORT_NAME_ANALOG(__LINE__, TEMP_CHAMBER_PIN)
 #endif
-#if PIN_EXISTS(TEMP_X) && TEMP_X_PIN < NUM_ANALOG_INPUTS
-  REPORT_NAME_ANALOG(__LINE__, TEMP_X_PIN)
-#endif
 #if PIN_EXISTS(ADC_KEYPAD) && ADC_KEYPAD_PIN < NUM_ANALOG_INPUTS
   REPORT_NAME_ANALOG(__LINE__, ADC_KEYPAD_PIN)
 #endif
@@ -166,6 +163,9 @@
 #if PIN_EXISTS(CASE_LIGHT)
   REPORT_NAME_DIGITAL(__LINE__, CASE_LIGHT_PIN)
 #endif
+#if PIN_EXISTS(CHAMBER_AUTO_FAN)
+  REPORT_NAME_DIGITAL(__LINE__, CHAMBER_AUTO_FAN_PIN)
+#endif
 #if PIN_EXISTS(CONTROLLER_FAN)
   REPORT_NAME_DIGITAL(__LINE__, CONTROLLER_FAN_PIN)
 #endif
diff --git a/Marlin/pins_RUMBA.h b/Marlin/pins_RUMBA.h
index 970ca5b1d..ffa6a26e4 100644
--- a/Marlin/pins_RUMBA.h
+++ b/Marlin/pins_RUMBA.h
@@ -107,6 +107,7 @@
 
 // optional for extruder 4 or chamber:
 //#define TEMP_X_PIN         12   // Analog Input (default connector for thermistor *T3* on rumba board is used)
+//#define TEMP_CHAMBER_PIN   12   // Analog Input (default connector for thermistor *T3* on rumba board is used)
 
 #if TEMP_SENSOR_BED == -1
   #define TEMP_BED_PIN      7   // Analog Input (connector *K3* on RUMBA thermocouple ADD ON is used <-- this can't be used when TEMP_SENSOR_2 is defined as thermocouple)
diff --git a/Marlin/temperature.cpp b/Marlin/temperature.cpp
index f258332f6..8db4a1209 100644
--- a/Marlin/temperature.cpp
+++ b/Marlin/temperature.cpp
@@ -82,10 +82,12 @@ Temperature thermalManager;
 // public:
 
 float Temperature::current_temperature[HOTENDS] = { 0.0 },
+      Temperature::current_temperature_chamber = 0.0,
       Temperature::current_temperature_bed = 0.0;
 
 int16_t Temperature::current_temperature_raw[HOTENDS] = { 0 },
         Temperature::target_temperature[HOTENDS] = { 0 },
+        Temperature::current_temperature_chamber_raw = 0,
         Temperature::current_temperature_bed_raw = 0;
 
 #if ENABLED(AUTO_POWER_E_FANS)
@@ -174,6 +176,7 @@ volatile bool Temperature::temp_meas_ready = false;
 #endif
 
 uint16_t Temperature::raw_temp_value[MAX_EXTRUDERS] = { 0 },
+         Temperature::raw_temp_chamber_value = 0,
          Temperature::raw_temp_bed_value = 0;
 
 // Init min and max temp with extreme values to prevent false errors during startup
@@ -545,19 +548,22 @@ int Temperature::getHeaterPower(int heater) {
 #if HAS_AUTO_FAN
 
   void Temperature::checkExtruderAutoFans() {
-    static const pin_t fanPin[] PROGMEM = { E0_AUTO_FAN_PIN, E1_AUTO_FAN_PIN, E2_AUTO_FAN_PIN, E3_AUTO_FAN_PIN, E4_AUTO_FAN_PIN };
+    static const pin_t fanPin[] PROGMEM = { E0_AUTO_FAN_PIN, E1_AUTO_FAN_PIN, E2_AUTO_FAN_PIN, E3_AUTO_FAN_PIN, E4_AUTO_FAN_PIN, CHAMBER_AUTO_FAN_PIN };
     static const uint8_t fanBit[] PROGMEM = {
                     0,
       AUTO_1_IS_0 ? 0 :               1,
       AUTO_2_IS_0 ? 0 : AUTO_2_IS_1 ? 1 :               2,
       AUTO_3_IS_0 ? 0 : AUTO_3_IS_1 ? 1 : AUTO_3_IS_2 ? 2 :               3,
-      AUTO_4_IS_0 ? 0 : AUTO_4_IS_1 ? 1 : AUTO_4_IS_2 ? 2 : AUTO_4_IS_3 ? 3 : 4
+      AUTO_4_IS_0 ? 0 : AUTO_4_IS_1 ? 1 : AUTO_4_IS_2 ? 2 : AUTO_4_IS_3 ? 3 : 4,
+      AUTO_CHAMBER_IS_0 ? 0 : AUTO_CHAMBER_IS_1 ? 1 : AUTO_CHAMBER_IS_2 ? 2 : AUTO_CHAMBER_IS_3 ? 3 : AUTO_CHAMBER_IS_4 ? 4 : 5
     };
     uint8_t fanState = 0;
 
     HOTEND_LOOP()
       if (current_temperature[e] > EXTRUDER_AUTO_FAN_TEMPERATURE)
         SBI(fanState, pgm_read_byte(&fanBit[e]));
+    if (current_temperature_chamber > EXTRUDER_AUTO_FAN_TEMPERATURE)
+      SBI(fanState, pgm_read_byte(&fanBit[5]));
 
     uint8_t fanDone = 0;
     for (uint8_t f = 0; f < COUNT(fanPin); f++) {
@@ -982,6 +988,42 @@ float Temperature::analog2temp(const int raw, const uint8_t e) {
   }
 #endif // HAS_TEMP_BED
 
+#if HAS_TEMP_CHAMBER
+  // Derived from RepRap FiveD extruder::getTemperature()
+  // For chamber temperature measurement.
+  float Temperature::analog2tempChamber(const int raw) {
+    #if ENABLED(CHAMBER_USES_THERMISTOR)
+      float celsius = 0;
+      byte i;
+
+      for (i = 1; i < CHAMBERTEMPTABLE_LEN; i++) {
+        if (PGM_RD_W(CHAMBERTEMPTABLE[i][0]) > raw) {
+          celsius  = PGM_RD_W(CHAMBERTEMPTABLE[i - 1][1]) +
+                     (raw - PGM_RD_W(CHAMBERTEMPTABLE[i - 1][0])) *
+                     (float)(PGM_RD_W(CHAMBERTEMPTABLE[i][1]) - PGM_RD_W(CHAMBERTEMPTABLE[i - 1][1])) /
+                     (float)(PGM_RD_W(CHAMBERTEMPTABLE[i][0]) - PGM_RD_W(CHAMBERTEMPTABLE[i - 1][0]));
+          break;
+        }
+      }
+
+      // Overflow: Set to last value in the table
+      if (i == CHAMBERTEMPTABLE_LEN) celsius = PGM_RD_W(CHAMBERTEMPTABLE[i - 1][1]);
+
+      return celsius;
+
+    #elif defined(CHAMBER_USES_AD595)
+
+      return ((raw * ((5.0 * 100.0) / 1024.0) / OVERSAMPLENR) * (TEMP_SENSOR_AD595_GAIN)) + TEMP_SENSOR_AD595_OFFSET;
+
+    #else
+
+      UNUSED(raw);
+      return 0;
+
+    #endif
+  }
+#endif // HAS_TEMP_CHAMBER
+
 /**
  * Get the raw values into the actual temperatures.
  * The raw values are created in interrupt context,
@@ -997,6 +1039,9 @@ void Temperature::updateTemperaturesFromRawValues() {
   #if HAS_TEMP_BED
     current_temperature_bed = Temperature::analog2tempBed(current_temperature_bed_raw);
   #endif
+  #if HAS_TEMP_CHAMBER
+    current_temperature_chamber = Temperature::analog2tempChamber(current_temperature_chamber_raw);
+  #endif
   #if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT)
     redundant_temperature = Temperature::analog2temp(redundant_temperature_raw, 1);
   #endif
@@ -1054,7 +1099,7 @@ void Temperature::updateTemperaturesFromRawValues() {
  */
 void Temperature::init() {
 
-  #if MB(RUMBA) && (TEMP_SENSOR_0 == -1 || TEMP_SENSOR_1 == -1 || TEMP_SENSOR_2 == -1 || TEMP_SENSOR_BED == -1)
+  #if MB(RUMBA) && (TEMP_SENSOR_0 == -1 || TEMP_SENSOR_1 == -1 || TEMP_SENSOR_2 == -1 || TEMP_SENSOR_BED == -1 || TEMP_SENSOR_CHAMBER == -1)
     // Disable RUMBA JTAG in case the thermocouple extension is plugged on top of JTAG connector
     MCUCR = _BV(JTD);
     MCUCR = _BV(JTD);
@@ -1150,6 +1195,9 @@ void Temperature::init() {
   #if HAS_TEMP_BED
     ANALOG_SELECT(TEMP_BED_PIN);
   #endif
+  #if HAS_TEMP_CHAMBER
+    ANALOG_SELECT(TEMP_CHAMBER_PIN);
+  #endif
   #if ENABLED(FILAMENT_WIDTH_SENSOR)
     ANALOG_SELECT(FILWIDTH_PIN);
   #endif
@@ -1204,6 +1252,16 @@ void Temperature::init() {
       SET_OUTPUT(E4_AUTO_FAN_PIN);
     #endif
   #endif
+  #if HAS_AUTO_CHAMBER_FAN && !AUTO_CHAMBER_IS_0 && !AUTO_CHAMBER_IS_1 && !AUTO_CHAMBER_IS_2 && !AUTO_CHAMBER_IS_3 && ! AUTO_CHAMBER_IS_4
+    #if CHAMBER_AUTO_FAN_PIN == FAN1_PIN
+      SET_OUTPUT(CHAMBER_AUTO_FAN_PIN);
+      #if ENABLED(FAST_PWM_FAN)
+        setPwmFrequency(CHAMBER_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
+      #endif
+    #else
+      SET_OUTPUT(CHAMBER_AUTO_FAN_PIN);
+    #endif
+  #endif
 
   // Use timer0 for temperature measurement
   // Interleave temperature interrupt with millies interrupt
@@ -1616,6 +1674,7 @@ void Temperature::set_current_temp_raw() {
     #endif
   #endif
   current_temperature_bed_raw = raw_temp_bed_value;
+  current_temperature_chamber_raw = raw_temp_chamber_value;
   temp_meas_ready = true;
 }
 
@@ -2063,6 +2122,15 @@ void Temperature::isr() {
         break;
     #endif
 
+    #if HAS_TEMP_CHAMBER
+      case PrepareTemp_CHAMBER:
+        START_ADC(TEMP_CHAMBER_PIN);
+        break;
+      case MeasureTemp_CHAMBER:
+        raw_temp_chamber_value += ADC;
+        break;
+    #endif
+
     #if HAS_TEMP_1
       case PrepareTemp_1:
         START_ADC(TEMP_1_PIN);
@@ -2149,6 +2217,7 @@ void Temperature::isr() {
 
     ZERO(raw_temp_value);
     raw_temp_bed_value = 0;
+    raw_temp_chamber_value = 0;
 
     #define TEMPDIR(N) ((HEATER_##N##_RAW_LO_TEMP) > (HEATER_##N##_RAW_HI_TEMP) ? -1 : 1)
 
@@ -2260,15 +2329,17 @@ void Temperature::isr() {
     #if ENABLED(SHOW_TEMP_ADC_VALUES)
       const float r,
     #endif
-    const int8_t e=-2
+    const int8_t e=-3
   ) {
-    #if !(HAS_TEMP_BED && HAS_TEMP_HOTEND) && HOTENDS <= 1
+    #if !(HAS_TEMP_BED && HAS_TEMP_HOTEND && HAS_TEMP_CHAMBER) && HOTENDS <= 1
       UNUSED(e);
     #endif
 
     SERIAL_PROTOCOLCHAR(' ');
     SERIAL_PROTOCOLCHAR(
-      #if HAS_TEMP_BED && HAS_TEMP_HOTEND
+      #if HAS_TEMP_CHAMBER && HAS_TEMP_BED && HAS_TEMP_HOTEND
+        e == -2 ? 'C' : e == -1 ? 'B' : 'T'
+      #elif HAS_TEMP_BED && HAS_TEMP_HOTEND
         e == -1 ? 'B' : 'T'
       #elif HAS_TEMP_HOTEND
         'T'
@@ -2307,6 +2378,14 @@ void Temperature::isr() {
         , -1 // BED
       );
     #endif
+    #if HAS_TEMP_CHAMBER
+      print_heater_state(degChamber(), 0
+        #if ENABLED(SHOW_TEMP_ADC_VALUES)
+          , rawChamberTemp()
+        #endif
+        , -2 // CHAMBER
+      );
+    #endif
     #if HOTENDS > 1
       HOTEND_LOOP() print_heater_state(degHotend(e), degTargetHotend(e)
         #if ENABLED(SHOW_TEMP_ADC_VALUES)
diff --git a/Marlin/temperature.h b/Marlin/temperature.h
index deeedafaf..195a56796 100644
--- a/Marlin/temperature.h
+++ b/Marlin/temperature.h
@@ -81,6 +81,10 @@ enum ADCSensorState : char {
     PrepareTemp_BED,
     MeasureTemp_BED,
   #endif
+  #if HAS_TEMP_CHAMBER
+    PrepareTemp_CHAMBER,
+    MeasureTemp_CHAMBER,
+  #endif
   #if ENABLED(FILAMENT_WIDTH_SENSOR)
     Prepare_FILWIDTH,
     Measure_FILWIDTH,
@@ -120,9 +124,11 @@ class Temperature {
   public:
 
     static float current_temperature[HOTENDS],
+                 current_temperature_chamber,
                  current_temperature_bed;
     static int16_t current_temperature_raw[HOTENDS],
                    target_temperature[HOTENDS],
+                   current_temperature_chamber_raw,
                    current_temperature_bed_raw;
 
     #if ENABLED(AUTO_POWER_E_FANS)
@@ -246,6 +252,7 @@ class Temperature {
     #endif
 
     static uint16_t raw_temp_value[MAX_EXTRUDERS],
+                    raw_temp_chamber_value,
                     raw_temp_bed_value;
 
     // Init min and max temp with extreme values to prevent false errors during startup
@@ -317,6 +324,9 @@ class Temperature {
     #if HAS_TEMP_BED
       static float analog2tempBed(const int raw);
     #endif
+    #if HAS_TEMP_CHAMBER
+      static float analog2tempChamber(const int raw);
+    #endif
 
     /**
      * Called from the Temperature ISR
@@ -371,6 +381,7 @@ class Temperature {
       return current_temperature[HOTEND_INDEX];
     }
     FORCE_INLINE static float degBed() { return current_temperature_bed; }
+    FORCE_INLINE static float degChamber() { return current_temperature_chamber; }
 
     #if ENABLED(SHOW_TEMP_ADC_VALUES)
       FORCE_INLINE static int16_t rawHotendTemp(const uint8_t e) {
@@ -380,6 +391,7 @@ class Temperature {
         return current_temperature_raw[HOTEND_INDEX];
       }
       FORCE_INLINE static int16_t rawBedTemp() { return current_temperature_bed_raw; }
+      FORCE_INLINE static int16_t rawChamberTemp() { return current_temperature_chamber_raw; }
     #endif
 
     FORCE_INLINE static int16_t degTargetHotend(const uint8_t e) {
diff --git a/Marlin/thermistortable_20.h b/Marlin/thermistortable_20.h
index 5a01f78cf..1cd9480c8 100644
--- a/Marlin/thermistortable_20.h
+++ b/Marlin/thermistortable_20.h
@@ -47,6 +47,10 @@
   #define HEATER_BED_RAW_HI_TEMP 16383
   #define HEATER_BED_RAW_LO_TEMP 0
 #endif
+#if THERMISTORCHAMBER == 20
+  #define HEATER_CHAMBER_RAW_HI_TEMP 16383
+  #define HEATER_CHAMBER_RAW_LO_TEMP 0
+#endif
 const short temptable_20[][2] PROGMEM = {
   { OV(  0),    0 },
   { OV(227),    1 },
diff --git a/Marlin/thermistortables.h b/Marlin/thermistortables.h
index 08d4e8049..737fca816 100644
--- a/Marlin/thermistortables.h
+++ b/Marlin/thermistortables.h
@@ -29,7 +29,7 @@
 #define OVERSAMPLENR 16
 #define OV(N) int16_t((N)*(OVERSAMPLENR))
 
-#define ANY_THERMISTOR_IS(n) (THERMISTORHEATER_0 == n || THERMISTORHEATER_1 == n || THERMISTORHEATER_2 == n || THERMISTORHEATER_3 == n || THERMISTORHEATER_4 == n || THERMISTORBED == n)
+#define ANY_THERMISTOR_IS(n) (THERMISTORHEATER_0 == n || THERMISTORHEATER_1 == n || THERMISTORHEATER_2 == n || THERMISTORHEATER_3 == n || THERMISTORHEATER_4 == n || THERMISTORBED == n || THERMISTORCHAMBER == n)
 
 // Pt1000 and Pt100 handling
 //
@@ -191,6 +191,15 @@
   #endif
 #endif
 
+#ifdef THERMISTORCHAMBER
+  #define CHAMBERTEMPTABLE TT_NAME(THERMISTORCHAMBER)
+  #define CHAMBERTEMPTABLE_LEN COUNT(CHAMBERTEMPTABLE)
+#else
+  #ifdef CHAMBER_USES_THERMISTOR
+    #error "No chamber thermistor table specified"
+  #endif
+#endif
+
 // Set the high and low raw values for the heaters
 // For thermistors the highest temperature results in the lowest ADC value
 // For thermocouples the highest temperature results in the highest ADC value
@@ -248,5 +257,14 @@
     #define HEATER_BED_RAW_LO_TEMP 0
   #endif
 #endif
+#ifndef HEATER_CHAMBER_RAW_HI_TEMP
+  #ifdef CHAMBER_USES_THERMISTOR
+    #define HEATER_CHAMBER_RAW_HI_TEMP 0
+    #define HEATER_CHAMBER_RAW_LO_TEMP 16383
+  #else
+    #define HEATER_CHAMBER_RAW_HI_TEMP 16383
+    #define HEATER_CHAMBER_RAW_LO_TEMP 0
+  #endif
+#endif
 
 #endif // THERMISTORTABLES_H_