Mill
Mill 3rd generation heater (local API)
Air Conditioners and Heaters · Climate
Mixed reports
2 reports: 1 says it works, 1 says it doesn’t work.
Reported with 1 integration: Mill.
What people report
| Integration | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| Mill | Works Local | Local API supports 0.1 degree precision with latest firmwareSaved copyProposed change With the latest firmware, the local controlled devices supports `PRECISION_TENTHS`, meaning we can remove `PRECISION_HALVES`. ## Type of change <!-- What type of change does your PR introduce to Home Assistant? NOTE: Please, check only 1! box! If your PR requires multiple boxes to be checked, you'll most likely need to split it into multiple PRs. This makes things easier and faster to code review. Excerpt saved from GitHub on 2026-10-23. | PR #97874 · 2023-08 | |
| Mill | Not working Cloud | Control works but ON/OFF status always shows heating; Gen 2 fineSaved copyThe problem I have 4 Mill G2 and 1 G3 heater using Cloud auth. G3 heater never updates correct ON/OFF status. Always show heat even when off. I can controll heat, turn on and off from Home Assistant. Only issue is it never show correct status. Set temp is shown correctly. No issues with G2 heaters. Tried to remove and add intergration again. Tried to remove heater from Mill App. Mill App also show correct status. Have been like this for last 3-4 months over multiple versions. Only error from Mill I see in log is this: Also attached log/diagnostic for debug logging. `Logger: mill Source: … Excerpt saved from GitHub on 2026-10-23. | Issue #164041 · 2026-02 |
Each row is one report from a GitHub thread, an integration’s docs, or r/homeassistant. Check the date and the linked source before you buy.
In ReReHome
Once Home Assistant’s HomeKit Bridge shares it, this device reaches Apple Home as a HomeKit accessory behind your Home Assistant bridge, so ReReHome shows and controls it like any other.
Identifiers
| Brand | Mill |
|---|---|
| Model | Gen 3 |
| Category | Air Conditioners and Heaters |
Also reported as
- Mill Gen 3 heater (cloud)