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by SimonH
Sun Mar 03, 2013 1:12 pm
Forum: Opentherm Gateway Forum
Topic: Using the opentherm interface with just a boiler
Replies: 5
Views: 6871

Re: Using the opentherm interface with just a boiler

Yes, I'm interested in this too :) I've got a Viessman Vitodens 100-W WB1B with an OpenTherm interface but currently control it using 240V switched from the 4 wire actuators on my zone valves. I also have their external weather compensation thermistor, and can also switch in a resistor in parallel v...

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