- platform: mqtt
   name: Thermostat
   modes:
     - "auto"
     - "manual"
     - "off"

   mode_state_topic: "home/ems-esp/thermostat_data"
   current_temperature_topic: "home/ems-esp/thermostat_data"
   temperature_state_topic: "home/ems-esp/thermostat_data"

   temperature_command_topic: "home/ems-esp/thermostat_cmd_temp"
   mode_command_topic: "home/ems-esp/thermostat_cmd_mode"

   mode_state_template: "{{ value_json.thermostat_mode }}"
   current_temperature_template: "{{ value_json.thermostat_currtemp }}"
   temperature_state_template: "{{ value_json.thermostat_seltemp }}"

   temp_step: 0.5

 - platform: mqtt
   name: boiler
   modes:
    - "on"
    - "off"
   min_temp: 40
   max_temp: 60
   temp_step: 1
   current_temperature_topic: "home/ems-esp/boiler_data"
   temperature_state_topic: "home/ems-esp/boiler_data"
   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"