diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index b8ebd2083..7f0904d2e 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -263,10 +263,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 9f7e78b1e..a47b446c3 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -4488,31 +4488,16 @@ inline void gcode_M104() {
       }
     #endif
     SERIAL_PROTOCOLPGM(" @:");
-    #ifdef EXTRUDER_WATTS
-      SERIAL_PROTOCOL(((EXTRUDER_WATTS) * thermalManager.getHeaterPower(target_extruder)) / 127);
-      SERIAL_PROTOCOLCHAR('W');
-    #else
-      SERIAL_PROTOCOL(thermalManager.getHeaterPower(target_extruder));
-    #endif
+    SERIAL_PROTOCOL(thermalManager.getHeaterPower(target_extruder));
     #if HAS_TEMP_BED
       SERIAL_PROTOCOLPGM(" B@:");
-      #ifdef BED_WATTS
-        SERIAL_PROTOCOL(((BED_WATTS) * thermalManager.getHeaterPower(-1)) / 127);
-        SERIAL_PROTOCOLCHAR('W');
-      #else
-        SERIAL_PROTOCOL(thermalManager.getHeaterPower(-1));
-      #endif
+      SERIAL_PROTOCOL(thermalManager.getHeaterPower(-1));
     #endif
     #if HOTENDS > 1
       HOTEND_LOOP() {
         SERIAL_PROTOCOLPAIR(" @", e);
         SERIAL_PROTOCOLCHAR(':');
-        #ifdef EXTRUDER_WATTS
-          SERIAL_PROTOCOL(((EXTRUDER_WATTS) * thermalManager.getHeaterPower(e)) / 127);
-          SERIAL_PROTOCOLCHAR('W');
-        #else
-          SERIAL_PROTOCOL(thermalManager.getHeaterPower(e));
-        #endif
+        SERIAL_PROTOCOL(thermalManager.getHeaterPower(e));
       }
     #endif
   }
diff --git a/Marlin/SanityCheck.h b/Marlin/SanityCheck.h
index 12e5e9b34..2cbdcc549 100644
--- a/Marlin/SanityCheck.h
+++ b/Marlin/SanityCheck.h
@@ -698,8 +698,8 @@
   #error "EXTRUDER_OFFSET_[XY] is deprecated. Use HOTEND_OFFSET_[XY] instead."
 #elif defined(PID_PARAMS_PER_EXTRUDER)
   #error "PID_PARAMS_PER_EXTRUDER is deprecated. Use PID_PARAMS_PER_HOTEND instead."
-#elif defined(EXTRUDER_WATTS)
-  #error "EXTRUDER_WATTS is deprecated. Use HOTEND_WATTS instead."
+#elif defined(EXTRUDER_WATTS) || defined(BED_WATTS)
+  #error "EXTRUDER_WATTS and BED_WATTS are deprecated. Remove them from your configuration."
 #elif defined(SERVO_ENDSTOP_ANGLES)
   #error "SERVO_ENDSTOP_ANGLES is deprecated. Use Z_SERVO_ANGLES instead."
 #elif defined(X_ENDSTOP_SERVO_NR) || defined(Y_ENDSTOP_SERVO_NR)
diff --git a/Marlin/example_configurations/Cartesio/Configuration.h b/Marlin/example_configurations/Cartesio/Configuration.h
index 7892e4e43..4f77d4bb2 100644
--- a/Marlin/example_configurations/Cartesio/Configuration.h
+++ b/Marlin/example_configurations/Cartesio/Configuration.h
@@ -265,10 +265,6 @@
 #define HEATER_3_MAXTEMP 415
 #define BED_MAXTEMP 165
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/Felix/Configuration.h b/Marlin/example_configurations/Felix/Configuration.h
index b0e218b5d..4be4e7950 100644
--- a/Marlin/example_configurations/Felix/Configuration.h
+++ b/Marlin/example_configurations/Felix/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/Felix/DUAL/Configuration.h b/Marlin/example_configurations/Felix/DUAL/Configuration.h
index 30ea847f4..7399f98fd 100644
--- a/Marlin/example_configurations/Felix/DUAL/Configuration.h
+++ b/Marlin/example_configurations/Felix/DUAL/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/Hephestos/Configuration.h b/Marlin/example_configurations/Hephestos/Configuration.h
index a578621c8..8dc9522fd 100644
--- a/Marlin/example_configurations/Hephestos/Configuration.h
+++ b/Marlin/example_configurations/Hephestos/Configuration.h
@@ -267,10 +267,6 @@
 #define HEATER_3_MAXTEMP 260
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/Hephestos_2/Configuration.h b/Marlin/example_configurations/Hephestos_2/Configuration.h
index 6586758ca..bed48247b 100644
--- a/Marlin/example_configurations/Hephestos_2/Configuration.h
+++ b/Marlin/example_configurations/Hephestos_2/Configuration.h
@@ -263,10 +263,6 @@
 //#define HEATER_3_MAXTEMP 275
 //#define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/K8200/Configuration.h b/Marlin/example_configurations/K8200/Configuration.h
index 9608baed4..49057aea0 100644
--- a/Marlin/example_configurations/K8200/Configuration.h
+++ b/Marlin/example_configurations/K8200/Configuration.h
@@ -271,10 +271,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/K8400/Configuration.h b/Marlin/example_configurations/K8400/Configuration.h
index 5a431599c..f53441c74 100644
--- a/Marlin/example_configurations/K8400/Configuration.h
+++ b/Marlin/example_configurations/K8400/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/K8400/Dual-head/Configuration.h b/Marlin/example_configurations/K8400/Dual-head/Configuration.h
index cf3cb68d7..3b76fbda1 100644
--- a/Marlin/example_configurations/K8400/Dual-head/Configuration.h
+++ b/Marlin/example_configurations/K8400/Dual-head/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
index 5f7ce95ee..2dc3555c6 100644
--- a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
+++ b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/RigidBot/Configuration.h b/Marlin/example_configurations/RigidBot/Configuration.h
index ed919e87f..571e3aa16 100644
--- a/Marlin/example_configurations/RigidBot/Configuration.h
+++ b/Marlin/example_configurations/RigidBot/Configuration.h
@@ -267,10 +267,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/SCARA/Configuration.h b/Marlin/example_configurations/SCARA/Configuration.h
index 3ee07c3a9..b6c70ee74 100644
--- a/Marlin/example_configurations/SCARA/Configuration.h
+++ b/Marlin/example_configurations/SCARA/Configuration.h
@@ -289,10 +289,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-#define HOTEND_WATTS (2*2/5.9)       // P=U^2/R
-#define BED_WATTS (5.45*5.45/2.2)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/TAZ4/Configuration.h b/Marlin/example_configurations/TAZ4/Configuration.h
index bf7c10f3b..54f69f546 100644
--- a/Marlin/example_configurations/TAZ4/Configuration.h
+++ b/Marlin/example_configurations/TAZ4/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 250
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/WITBOX/Configuration.h b/Marlin/example_configurations/WITBOX/Configuration.h
index 0f81183e3..67fc743a9 100644
--- a/Marlin/example_configurations/WITBOX/Configuration.h
+++ b/Marlin/example_configurations/WITBOX/Configuration.h
@@ -266,10 +266,6 @@
 #define HEATER_3_MAXTEMP 260
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/adafruit/ST7565/Configuration.h b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
index fd4441f84..80b0715a7 100644
--- a/Marlin/example_configurations/adafruit/ST7565/Configuration.h
+++ b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/delta/biv2.5/Configuration.h b/Marlin/example_configurations/delta/biv2.5/Configuration.h
index 35ec25acb..79079193f 100644
--- a/Marlin/example_configurations/delta/biv2.5/Configuration.h
+++ b/Marlin/example_configurations/delta/biv2.5/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index 163251168..e3232022e 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
index f5283d99a..873f3c6aa 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration.h b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
index 65e68a4b5..f6a09cac2 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
@@ -270,10 +270,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration.h b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
index 9aac30d6b..d3b4bb0d1 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
@@ -257,10 +257,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/makibox/Configuration.h b/Marlin/example_configurations/makibox/Configuration.h
index ad2997dda..9f9d94065 100644
--- a/Marlin/example_configurations/makibox/Configuration.h
+++ b/Marlin/example_configurations/makibox/Configuration.h
@@ -264,10 +264,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration.h b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
index dbe5b9cd2..a36fb37f0 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
@@ -263,10 +263,6 @@
 #define HEATER_3_MAXTEMP 275
 #define BED_MAXTEMP 150
 
-// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
-//#define HOTEND_WATTS (12.0*12.0/6.7) // P=U^2/R
-//#define BED_WATTS (12.0*12.0/1.1)    // P=U^2/R
-
 //===========================================================================
 //============================= PID Settings ================================
 //===========================================================================