diff --git a/esphome/components/water_heater/water_heater.cpp b/esphome/components/water_heater/water_heater.cpp
index 9ee8faadee..9862253ad9 100644
--- a/esphome/components/water_heater/water_heater.cpp
+++ b/esphome/components/water_heater/water_heater.cpp
@@ -233,18 +233,6 @@ WaterHeaterTraits WaterHeater::get_traits() {
   return traits;
 }
 
-#ifdef USE_WATER_HEATER_VISUAL_OVERRIDES
-void WaterHeater::set_visual_min_temperature_override(float min_temperature_override) {
-  this->visual_min_temperature_override_ = min_temperature_override;
-}
-void WaterHeater::set_visual_max_temperature_override(float max_temperature_override) {
-  this->visual_max_temperature_override_ = max_temperature_override;
-}
-void WaterHeater::set_visual_target_temperature_step_override(float visual_target_temperature_step_override) {
-  this->visual_target_temperature_step_override_ = visual_target_temperature_step_override;
-}
-#endif
-
 // Water heater mode strings indexed by WaterHeaterMode enum (0-6): OFF, ECO, ELECTRIC, PERFORMANCE, HIGH_DEMAND,
 // HEAT_PUMP, GAS
 PROGMEM_STRING_TABLE(WaterHeaterModeStrings, "OFF", "ECO", "ELECTRIC", "PERFORMANCE", "HIGH_DEMAND", "HEAT_PUMP", "GAS",
diff --git a/esphome/components/water_heater/water_heater.h b/esphome/components/water_heater/water_heater.h
index 995b815440..1255a68595 100644
--- a/esphome/components/water_heater/water_heater.h
+++ b/esphome/components/water_heater/water_heater.h
@@ -217,9 +217,15 @@ class WaterHeater : public EntityBase {
   virtual WaterHeaterCallInternal make_call() = 0;
 
 #ifdef USE_WATER_HEATER_VISUAL_OVERRIDES
-  void set_visual_min_temperature_override(float min_temperature_override);
-  void set_visual_max_temperature_override(float max_temperature_override);
-  void set_visual_target_temperature_step_override(float visual_target_temperature_step_override);
+  void set_visual_min_temperature_override(float min_temperature_override) {
+    this->visual_min_temperature_override_ = min_temperature_override;
+  }
+  void set_visual_max_temperature_override(float max_temperature_override) {
+    this->visual_max_temperature_override_ = max_temperature_override;
+  }
+  void set_visual_target_temperature_step_override(float visual_target_temperature_step_override) {
+    this->visual_target_temperature_step_override_ = visual_target_temperature_step_override;
+  }
 #endif
   virtual void control(const WaterHeaterCall &call) = 0;