diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index bf60efc9e2..f8bbc0bf7e 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -316,6 +316,7 @@
 #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 cad1f8f555..73c25edf30 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/src/HAL/HAL_AVR/fastio_AVR.h b/Marlin/src/HAL/HAL_AVR/fastio_AVR.h
index 269102e928..70a46bad63 100644
--- a/Marlin/src/HAL/HAL_AVR/fastio_AVR.h
+++ b/Marlin/src/HAL/HAL_AVR/fastio_AVR.h
@@ -242,9 +242,9 @@ typedef enum {
 
 //find out 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/src/inc/Conditionals_post.h b/Marlin/src/inc/Conditionals_post.h
index 39bc1f96a1..13f9d3d776 100644
--- a/Marlin/src/inc/Conditionals_post.h
+++ b/Marlin/src/inc/Conditionals_post.h
@@ -389,6 +389,15 @@
   #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
+
 #ifdef __SAM3X8E__
   #define HEATER_USES_AD595 (ENABLED(HEATER_0_USES_AD595) || ENABLED(HEATER_1_USES_AD595) || ENABLED(HEATER_2_USES_AD595) || ENABLED(HEATER_3_USES_AD595))
 #endif
@@ -754,7 +763,8 @@
 #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))
@@ -775,7 +785,8 @@
 #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)
@@ -786,6 +797,11 @@
 #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/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
index e2814d32b9..046c1cf4f9 100644
--- a/Marlin/src/module/temperature.cpp
+++ b/Marlin/src/module/temperature.cpp
@@ -83,10 +83,12 @@ 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)
@@ -179,6 +181,7 @@ 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
@@ -550,19 +553,22 @@ 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++) {
@@ -998,6 +1004,42 @@ 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,
@@ -1013,6 +1055,9 @@ 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
@@ -1076,7 +1121,7 @@ void Temperature::init() {
     inited = true;
   #endif
 
-  #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);
@@ -1162,6 +1207,9 @@ void Temperature::init() {
   #if HAS_TEMP_BED
     HAL_ANALOG_SELECT(TEMP_BED_PIN);
   #endif
+  #if HAS_TEMP_CHAMBER
+    HAL_ANALOG_SELECT(TEMP_CHAMBER_PIN);
+  #endif
   #if ENABLED(FILAMENT_WIDTH_SENSOR)
     HAL_ANALOG_SELECT(FILWIDTH_PIN);
   #endif
@@ -1227,6 +1275,16 @@ 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
 
   // Wait for temperature measurement to settle
   delay(250);
@@ -1630,6 +1688,7 @@ 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;
 }
 
@@ -1994,6 +2053,15 @@ void Temperature::isr() {
         break;
     #endif
 
+    #if HAS_TEMP_CHAMBER
+      case PrepareTemp_CHAMBER:
+        HAL_START_ADC(TEMP_CHAMBER_PIN);
+        break;
+      case MeasureTemp_CHAMBER:
+        raw_temp_chamber_value += ADC;
+        break;
+    #endif
+
     #if HAS_TEMP_1
       case PrepareTemp_1:
         HAL_START_ADC(TEMP_1_PIN);
@@ -2080,6 +2148,7 @@ 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)
 
@@ -2191,15 +2260,17 @@ void Temperature::isr() {
     #if NUM_SERIAL > 1
       , const int8_t port=-1
     #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_P(port, ' ');
     SERIAL_PROTOCOLCHAR_P(port,
-      #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'
@@ -2246,6 +2317,14 @@ 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/src/module/temperature.h b/Marlin/src/module/temperature.h
index 45263b4a2f..44e12507fc 100644
--- a/Marlin/src/module/temperature.h
+++ b/Marlin/src/module/temperature.h
@@ -74,6 +74,10 @@ 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,
@@ -113,9 +117,11 @@ 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)
@@ -244,6 +250,7 @@ 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
@@ -315,6 +322,9 @@ 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
@@ -369,6 +379,7 @@ 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) {
@@ -378,6 +389,7 @@ 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/src/module/thermistor/thermistor_20.h b/Marlin/src/module/thermistor/thermistor_20.h
index 5a01f78cf5..1cd9480c80 100644
--- a/Marlin/src/module/thermistor/thermistor_20.h
+++ b/Marlin/src/module/thermistor/thermistor_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/src/module/thermistor/thermistors.h b/Marlin/src/module/thermistor/thermistors.h
index 9083a7df86..45ee3be0b3 100644
--- a/Marlin/src/module/thermistor/thermistors.h
+++ b/Marlin/src/module/thermistor/thermistors.h
@@ -28,7 +28,7 @@
 #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
 //
@@ -190,6 +190,15 @@
   #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
@@ -247,5 +256,14 @@
     #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 // THERMISTORS_H_
diff --git a/Marlin/src/pins/pins.h b/Marlin/src/pins/pins.h
index 4c083887a5..8d4ea5e1c4 100644
--- a/Marlin/src/pins/pins.h
+++ b/Marlin/src/pins/pins.h
@@ -618,6 +618,13 @@
     #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/src/pins/pinsDebug_list.h b/Marlin/src/pins/pinsDebug_list.h
index 4ee1932fd8..4ea33dd5a6 100644
--- a/Marlin/src/pins/pinsDebug_list.h
+++ b/Marlin/src/pins/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/src/pins/pins_RUMBA.h b/Marlin/src/pins/pins_RUMBA.h
index 970ca5b1db..ffa6a26e47 100644
--- a/Marlin/src/pins/pins_RUMBA.h
+++ b/Marlin/src/pins/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)