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![Prominent_Bryan Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1721664276317057024.png) Bryan Breguet [@Prominent_Bryan](/creator/twitter/Prominent_Bryan) on x 7454 followers
Created: 2025-07-16 21:46:05 UTC

@gohstofcoals I have tried it once (it was minus 5-10 and my boiler broke). It was working perfectly fine. 

Up to minus 15, you won't have any problem

My in-laws have only a central heat pump and their old house has never been cold even when it went well below X


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[breguet](/topic/breguet)

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