diff --git a/doc/home_assistant/climate.yaml b/doc/home_assistant/climate.yaml
index 2ddbbece1..b344c66fb 100644
--- a/doc/home_assistant/climate.yaml
+++ b/doc/home_assistant/climate.yaml
@@ -20,6 +20,9 @@
 
  - platform: mqtt
    name: boiler
+   modes:
+    - "on"
+    - "off"
    min_temp: 40
    max_temp: 60
    temp_step: 1
@@ -28,3 +31,6 @@
    temperature_command_topic: "home/ems-esp/boiler_cmd_wwtemp"
    current_temperature_template: "{{ value_json.wWCurTmp }}"
    temperature_state_template: "{{ value_json.wWSelTemp }}"
+   mode_state_template: "{{ value_json.wWActivated }}"
+   mode_state_topic: "home/ems-esp/boiler_data"
+   mode_command_topic: "home/ems-esp/wwactivated"
diff --git a/src/ems-esp.cpp b/src/ems-esp.cpp
index e87d1afcc..fea746cf8 100644
--- a/src/ems-esp.cpp
+++ b/src/ems-esp.cpp
@@ -1242,9 +1242,9 @@ void MQTTCallback(unsigned int type, const char * topic, const char * message) {
 
         // wwActivated
         if (strcmp(topic, TOPIC_BOILER_WWACTIVATED) == 0) {
-            if (message[0] == '1') {
+            if (message[0] == '1' || message[0] == 'on') {
                 ems_setWarmWaterActivated(true);
-            } else if (message[0] == '0') {
+            } else if (message[0] == '0' || message[0] == 'off') {
                 ems_setWarmWaterActivated(false);
             }
         }