saxeeeJan 30

#homeassistant experts, I need your help. Long post, sorry 🙏

The scenario: I have thermostatic valves (TRVs) installed on every radiator in my house and I control the boiler according to the status of the TRVs. Whenever a valve turns on, an automation enables the boiler.

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Show threadsaxeeeJan 30

The issue: the TRV temperature sensors are very inaccurate (+/-4°) due to their proximity to the radiator. I would like to correct the TRV behavior with an external sensor, but I don't know how to integrate it with the valves.

Any suggestions?

Show threadMichael Weiss

@saxeee if your TRVs can be turned on and off as a switch in HA, then you can use HA's Generic Thermostat helper. The temperature sensor you want to actually use would then control the TRV. Maybe you set the TRV target temperature to something really high and just use the switch function on it (assuming it can do that).

I've done this with an electric wall mount heater for the same basic reason.

Jan 30 at 7:51pmWeb
Show threadsaxeeeFeb 2

@mweiss

Thank you, I am currently testing BT as suggested by Pippo. This seems to be an out-of-the-box solution to my problem.

Should it not work, I'll try to implement the custom solution you suggested.