diff --git a/CHANGELOG_LATEST.md b/CHANGELOG_LATEST.md
index 8cded5a0b..fdd711f55 100644
--- a/CHANGELOG_LATEST.md
+++ b/CHANGELOG_LATEST.md
@@ -10,6 +10,7 @@
 
 - Detect old Tado thermostat, device-id 0x19, no entities
 - Some more HM200 entities [#500](https://github.com/emsesp/EMS-ESP32/issues/500)
+- Add entity to force heating off (for systems without thermostat) [#951](https://github.com/emsesp/EMS-ESP32/issues/951)
 
 ## Fixed
 
diff --git a/src/devices/boiler.cpp b/src/devices/boiler.cpp
index 97e036ef3..e32c47a54 100644
--- a/src/devices/boiler.cpp
+++ b/src/devices/boiler.cpp
@@ -100,7 +100,12 @@ Boiler::Boiler(uint8_t device_type, int8_t device_id, uint8_t product_id, const
     // reset is a command uses a dummy variable which is always zero, shown as blank, but provides command enum options
     register_device_value(DeviceValueTAG::TAG_DEVICE_DATA, &reset_, DeviceValueType::CMD, FL_(enum_reset), FL_(reset), DeviceValueUOM::NONE, MAKE_CF_CB(set_reset));
     has_update(reset_, 0);
-
+    register_device_value(DeviceValueTAG::TAG_DEVICE_DATA,
+                          &forceHeatingOff_,
+                          DeviceValueType::BOOL,
+                          FL_(forceHeatingOff),
+                          DeviceValueUOM::NONE,
+                          MAKE_CF_CB(set_forceHeatingOff));
     register_device_value(DeviceValueTAG::TAG_DEVICE_DATA, &heatingActive_, DeviceValueType::BOOL, FL_(heatingActive), DeviceValueUOM::NONE);
     register_device_value(DeviceValueTAG::TAG_DEVICE_DATA, &tapwaterActive_, DeviceValueType::BOOL, FL_(tapwaterActive), DeviceValueUOM::NONE);
     register_device_value(DeviceValueTAG::TAG_DEVICE_DATA, &selFlowTemp_, DeviceValueType::UINT, FL_(selFlowTemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_flow_temp));
@@ -875,6 +880,10 @@ void Boiler::check_active(const bool force) {
         Mqtt::publish(F_(tapwater_active), Helpers::render_boolean(s, b));
         EMSESP::tap_water_active(b); // let EMS-ESP know, used in the Shower class
     }
+
+    if (forceHeatingOff_ == EMS_VALUE_BOOL_NOTSET) {
+        forceHeatingOff_ = selFlowTemp_ == 0 ? EMS_VALUE_BOOL_ON : EMS_VALUE_BOOL_OFF;
+    }
 }
 
 // 0x18
@@ -1075,6 +1084,11 @@ void Boiler::process_UBAMonitorSlow(std::shared_ptr<const Telegram> telegram) {
     has_update(telegram, burn2WorkMin_, 16, 3); // force to 3 bytes
     has_update(telegram, heatWorkMin_, 19, 3);  // force to 3 bytes
     has_update(telegram, heatStarts_, 22, 3);   // force to 3 bytes
+
+    if (forceHeatingOff_ == EMS_VALUE_BOOL_ON) {
+        uint8_t data[4] = {0, 0, 0, 0};
+        write_command(0x1A, 0, data, 4, 0);
+    }
 }
 
 /*
@@ -1105,6 +1119,11 @@ void Boiler::process_UBAMonitorSlowPlus(std::shared_ptr<const Telegram> telegram
     has_update(telegram, heatStarts_, 22, 3);   // force to 3 bytes
     has_update(telegram, heatingPumpMod_, 25);
     // temperature measurements at 4, see #620
+
+    if (forceHeatingOff_ == EMS_VALUE_BOOL_ON) {
+        uint8_t data[4] = {0, 0, 0, 0};
+        write_command(0x1A, 0, data, 4, 0);
+    }
 }
 
 /*
@@ -2576,4 +2595,13 @@ bool Boiler::set_wwAltOpPrio(const char * value, const int8_t id) {
     return false;
 }
 
+bool Boiler::set_forceHeatingOff(const char * value, const int8_t id) {
+    bool v;
+    if (Helpers::value2bool(value, v)) {
+        forceHeatingOff_ = v;
+        return true;
+    }
+    return false;
+}
+
 } // namespace emsesp
diff --git a/src/devices/boiler.h b/src/devices/boiler.h
index 74b6abe16..5aec7624a 100644
--- a/src/devices/boiler.h
+++ b/src/devices/boiler.h
@@ -87,7 +87,6 @@ class Boiler : public EMSdevice {
     uint32_t wwWorkM_;              // DHW minutes
     int8_t   wwHystOn_;
     int8_t   wwHystOff_;
-    uint8_t  wwTapActivated_;  // maintenance-mode to switch DHW off
     uint16_t wwMixerTemp_;     // mixing temperature
     uint16_t wwCylMiddleTemp_; // Cyl middle temperature (TS3)
     uint16_t wwSolarTemp_;
@@ -95,6 +94,11 @@ class Boiler : public EMSdevice {
     uint8_t  wwAltOpPrioHeat_;   // alternating operation, prioritise heat time
     uint8_t  wwAltOpPrioWw_;     // alternating operation, prioritise dhw time
 
+    // special function
+    uint8_t forceHeatingOff_;
+    uint8_t wwTapActivated_; // maintenance-mode to switch DHW off
+
+
     // main
     uint8_t  reset_;            // for reset command
     uint8_t  heatingActive_;    // Central heating is on/off
@@ -447,6 +451,8 @@ class Boiler : public EMSdevice {
     inline bool set_wwAltOpPrioWw(const char * value, const int8_t id) {
         return set_wwAltOpPrio(value, 3);
     }
+    bool set_forceHeatingOff(const char * value, const int8_t id);
+
     /*
     bool set_hybridStrategy(const char * value, const int8_t id);
     bool set_switchOverTemp(const char * value, const int8_t id);
diff --git a/src/locale_translations.h b/src/locale_translations.h
index f25ca2749..1fac38335 100644
--- a/src/locale_translations.h
+++ b/src/locale_translations.h
@@ -269,6 +269,7 @@ MAKE_PSTR_LIST(cyl2, "cyl 2", "Zyl_2", "Cil 2", "Cyl 2", "cyl 2", "cyl 2", "cyl
 
 // Entity translations
 // Boiler
+MAKE_PSTR_LIST(forceHeatingOff, "heatingoff", "force heating off", "Heizen abschalten", "", "", "", "", "")
 MAKE_PSTR_LIST(wwtapactivated, "wwtapactivated", "turn on/off", "Durchlauferhitzer aktiv", "zet aan/uit", "på/av", "system przygotowywania", "slå på/av", "ecs activée")
 MAKE_PSTR_LIST(reset, "reset", "Reset", "Reset", "Reset", "Nollställ", "kasowanie komunikatu", "nullstill", "reset")
 MAKE_PSTR_LIST(oilPreHeat, "oilpreheat", "oil preheating", "Ölvorwärmung", "Olie voorverwarming", "Förvärmning olja", "podgrzewanie oleju", "oljeforvarming", "préchauffage de l'huile")