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I live in the Landes. I have just changed my central heating boiler (gas per tank, 9 radiators). I opted for a balloon condensing boiler (saloon duval isotwin). This one is delivered with an external probe, nowadays not installed. What are the advantages of this probe? Should it really be placed? I also plan to install a wireless indoor thermostat.

Yes, it is indispensable. It is she who will automatically regulate the boiler according to climatic variations. The indoor thermostat will regulate it according to the "passive" variations of the indoor temperature, linked for example to sunshine.

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