Zigbee 3.0 line-voltage thermostats for electric baseboard, convector, and radiant ceiling heating, rated 3000 W (TH1123ZB) or 4000 W (TH1124ZB) at 240 V with silent TRIAC switching. Home Assistant reads heating demand, power, and energy and drives schedules fully locally over ZHA or Zigbee2MQTT.
Works on integrations
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Roles it can fill
Line-voltage only, not for 24V central HVAC or floor heating (see the TH1300ZB for radiant floors). The current G2 revisions pair the same way under ZHA and Zigbee2MQTT, and an automation can push the outdoor temperature to the secondary display. Skip the Wi-Fi TH1123WF/TH1124WF siblings, which require Sinopé's Neviweb cloud.
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