Google Nest Community

P_K · 11-19-2023

Hi,I have been using the Nest Learning Thermostat & Heat Link V3 for 5 years in my apartment, and I am happy with it. I would like to use it in my house as well, where I have installed the Geminox 17THRi DC boiler controlled by Siemens QAA73 (I need ...

P_K · 12-02-2023

Hi, that's all. Thank you. I discussed with two companies doing heating systems and they said better to forget OpenTherm - no perspective.

P_K · 11-21-2023

Hi, thank you for your reply and links, but this doesn't help. The valves that control both circuits are built into the boiler and are controlled by OpenTherm commands sent from the original Siemens QAA73. (The boiler itself has two circuits.). I the...

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