Thermostats

https://www.galaxus.ch/de... Does anyone understand why there are such big differences here? (almost +50% in price) The description and pictures look exactly the same.

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I would like to replace the room thermostats of my ground source heat pump with smart ones (wired). Which products can be switched from heating to cooling on the thermostat? There should be an additional connection, shouldn't there?

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I am looking for the above product to replace a defective adapter. Do any of you know where to get them? I only ever find the "RAV" products.

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Is it possible to group these thermostats? Can I group three together in the living room? Is there also the possibility for an external room thermostat? Thank you very much for your support.

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Hello all I want to get smart heating thermostats in the near future, but I'm not quite sure which manufacturer. I'm also planning to get fire alarms and possibly the weather station from Netatmo. Do you think it would make sense to build everything on one system or does that not make a big difference? The Netatmo products are also a bit more expensive than, for example, Homematic IP. Many thanks for your answers

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Hello together Is there something like this for underfloor heating? I see everything only for radiators etc. Thank you

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