diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index e3d0c339a2..77dc404c8f 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -306,8 +306,8 @@ 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 59d13ab64e..3c7d737ea6 100644
--- a/Marlin/configurator/config/Configuration.h
+++ b/Marlin/configurator/config/Configuration.h
@@ -306,9 +306,8 @@ 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 558ee3bb03..d0a2f24d3c 100644
--- a/Marlin/example_configurations/Felix/Configuration.h
+++ b/Marlin/example_configurations/Felix/Configuration.h
@@ -272,9 +272,8 @@ 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 2e5633b8c1..d40d69d959 100644
--- a/Marlin/example_configurations/Felix/Configuration_DUAL.h
+++ b/Marlin/example_configurations/Felix/Configuration_DUAL.h
@@ -272,9 +272,8 @@ 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 69841816fd..39347ed3f6 100644
--- a/Marlin/example_configurations/Hephestos/Configuration.h
+++ b/Marlin/example_configurations/Hephestos/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 =========================
diff --git a/Marlin/example_configurations/K8200/Configuration.h b/Marlin/example_configurations/K8200/Configuration.h
index 2987552f6d..3764de4a99 100644
--- a/Marlin/example_configurations/K8200/Configuration.h
+++ b/Marlin/example_configurations/K8200/Configuration.h
@@ -317,9 +317,8 @@ 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 6d70fa244f..2f63437e2e 100644
--- a/Marlin/example_configurations/SCARA/Configuration.h
+++ b/Marlin/example_configurations/SCARA/Configuration.h
@@ -324,9 +324,8 @@ 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 7022f78887..b42ee3cd52 100644
--- a/Marlin/example_configurations/WITBOX/Configuration.h
+++ b/Marlin/example_configurations/WITBOX/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/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index ae094ccac5..25f1c961ca 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -322,9 +322,8 @@ 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 f6b6a1e036..dfd6a86a48 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -322,9 +322,8 @@ 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 500f47fe86..9fc6c5ffc7 100644
--- a/Marlin/example_configurations/makibox/Configuration.h
+++ b/Marlin/example_configurations/makibox/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/tvrrug/Round2/Configuration.h b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
index 314faf2d6a..2d36012199 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
@@ -294,9 +294,8 @@ 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 =========================