Image: Ancient-String-9658 / reddit.com · Cozy Home heating schedule in Home Assistant
Cozy Home syncs room heating to a master thermostat
The maker used Claude to build a Home Assistant integration that synchronises TRVs and Wi-Fi heaters with a main thermostat, with schedules and per-room offsets.
Credits
- Build author Ancient-String-9658 Source ↗
Earliest dated source: Details reviewed:
The full story
The maker's boiler followed a main thermostat, while room TRVs and Wi-Fi heaters needed to follow manual changes outside its schedule. Leaving the TRVs active all day caused unwanted valve adjustments.
Cozy Home, built with substantial Claude help, lets the owner choose a master thermostat, add a heating schedule and synchronise other rooms with an offset. The maker gives a two-degree TRV offset as an example and offers the integration for others to adapt.
Before and after
- Starting problem
- Room TRVs and electric heaters did not follow unscheduled thermostat changes.
- Reported result
- A master-thermostat integration with schedules and room offsets.
Device and compatibility
- Home Assistant; conventional boiler, smart thermostat, TRVs and Wi-Fi heatersSource ↗
What Claude did
- Custom thermostat synchronisation integrationClaude Source ↗
How it was done
Tools
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: My Home Heating Custom Integration
The maker's post describing the project and reported limitations.