so I want to add UFH to my existing single-zone single-nest heating system, the nest is wired to my Combi via OpenTherm.
I want to keep the OpenTherm if possible as it helps the boiler modulate for peak efficiency.
It is not possible to chain nests together unless you use the dumb On/Off control method, so I’d have to sacrifice OpenTherm.
Can anyone think of any nice innovative solutions that will get me what I want?
I was thinking dual-zone with one zone controlling a zone valve and one wired direct to boiler, but that would only allow On/Off for the zone, and would only work when the master Nest was on.
I also thought about having smart TRVs on all my rads, and making some kind of software-based controller (on my raspberry pi) to control them based on either a schedule or another nest. The nest would then mostly just control my UFH
I want to keep the OpenTherm if possible as it helps the boiler modulate for peak efficiency.
It is not possible to chain nests together unless you use the dumb On/Off control method, so I’d have to sacrifice OpenTherm.
Can anyone think of any nice innovative solutions that will get me what I want?
I was thinking dual-zone with one zone controlling a zone valve and one wired direct to boiler, but that would only allow On/Off for the zone, and would only work when the master Nest was on.
I also thought about having smart TRVs on all my rads, and making some kind of software-based controller (on my raspberry pi) to control them based on either a schedule or another nest. The nest would then mostly just control my UFH
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