diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 25e0f3897e..abcfea50f8 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -305,8 +305,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 
 //===========================================================================
diff --git a/Marlin/configurator/config/Configuration.h b/Marlin/configurator/config/Configuration.h
index 8252d9654d..927a89046f 100644
--- a/Marlin/configurator/config/Configuration.h
+++ b/Marlin/configurator/config/Configuration.h
@@ -305,9 +305,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/Felix/Configuration.h b/Marlin/example_configurations/Felix/Configuration.h
index b0e74391e3..0bdc42f977 100644
--- a/Marlin/example_configurations/Felix/Configuration.h
+++ b/Marlin/example_configurations/Felix/Configuration.h
@@ -271,9 +271,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/Felix/Configuration_DUAL.h b/Marlin/example_configurations/Felix/Configuration_DUAL.h
index eddffd06f5..4786858184 100644
--- a/Marlin/example_configurations/Felix/Configuration_DUAL.h
+++ b/Marlin/example_configurations/Felix/Configuration_DUAL.h
@@ -271,9 +271,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/Hephestos/Configuration.h b/Marlin/example_configurations/Hephestos/Configuration.h
index e0ba6e998e..cf2337407b 100644
--- a/Marlin/example_configurations/Hephestos/Configuration.h
+++ b/Marlin/example_configurations/Hephestos/Configuration.h
@@ -292,9 +292,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/K8200/Configuration.h b/Marlin/example_configurations/K8200/Configuration.h
index 1b6bbd4eaa..75ccf4f740 100644
--- a/Marlin/example_configurations/K8200/Configuration.h
+++ b/Marlin/example_configurations/K8200/Configuration.h
@@ -321,9 +321,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/SCARA/Configuration.h b/Marlin/example_configurations/SCARA/Configuration.h
index 2fcb7da40d..44b8af94de 100644
--- a/Marlin/example_configurations/SCARA/Configuration.h
+++ b/Marlin/example_configurations/SCARA/Configuration.h
@@ -323,9 +323,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/WITBOX/Configuration.h b/Marlin/example_configurations/WITBOX/Configuration.h
index 189903dec0..dc356f81da 100644
--- a/Marlin/example_configurations/WITBOX/Configuration.h
+++ b/Marlin/example_configurations/WITBOX/Configuration.h
@@ -291,9 +291,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index b4ca29c836..d4028c0675 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -321,9 +321,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
index d0fda1e06f..cd0a34ec92 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -321,9 +321,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/makibox/Configuration.h b/Marlin/example_configurations/makibox/Configuration.h
index 27a73231a1..237ea7d38a 100644
--- a/Marlin/example_configurations/makibox/Configuration.h
+++ b/Marlin/example_configurations/makibox/Configuration.h
@@ -291,9 +291,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration.h b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
index 9332513ba3..5e07e4790a 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
@@ -293,9 +293,8 @@ your extruder heater takes 2 minutes to hit the target on heating.
 // uncomment the 2 defines below:
 
 // Parameters for the bed heater
-//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
-//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
-
+#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
+#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
 
 //===========================================================================
 //============================= Mechanical Settings =========================