Two points from my side:
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In most of Europe, heating is handled through radiators (water or electric, device or underfloor), not through forced‑air systems with fans. Because of this, the thermostat device page (and the Classic/EZ dashboard tiles) should not display fan controls for radiator‑based setups.
I understand this isn't currently feasible because the standard Thermostat capability includes fan‑related attributes and commands by design. Perhaps a dedicated RadiatorThermostat capability could be introduced for TRVs and EU‑style thermostats, with corresponding support added to the Classic/EZ dashboards.
Edit: A more accurate name for this new capability might be FanlessThermostat. The term "radiator" can be misleading, since these devices rely not only on heat radiation but also on natural (and sometimes non‑controllable fan) air convection.
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There are several areas where Hubitat’s Zigbee implementation still lags behind ZHA/Z2M in terms of features and device compatibility:
- Support for Zigbee 3.0 install codes is still missing, which prevents onboarding Bosch devices: [Feature Request] Support for Zigbee 3.0 Install Codes
- IKEA battery‑powered devices only pair when joined directly to the coordinator; pairing through routers fails; what's the underlying issue here?
- Shelly Gen4 devices running in Zigbee mode cannot be paired at all on my C-7
- Inbound group messaging for Zigbee remotes has been requested for years with no progress: The dirty word for HE “inbound group messaging” for zigbee remotes
Hope this helps.