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Last seen: Aug 3, 2026
@jamespa — I agree the OP needs to make his plan of action clear. I've often said there is only one number that really matters, the IAT (indoor air te...
Heresy! Unless the property is huge, which it isn't, it won't take long to do a heat loss (half a day or so for a first timer, particularly with mod...
You only need dimensions, U-values (the spreadsheet has some standard ones built into it) and air change assumptions to use the calculator, some of th...
@newby — thank you for the extra details. It is rather ominous that the developer/builder wont release the heat loss calculations. You could save your...
@newby — can you say what your estimated heat loss is, how it was calculated (eg speardsheet, if so which one) and what you installed heat pump power ...
Yes and no for me. I do have meters and sensors, but most of them are Midea hardware. What I do is collect more of that data (ie more variables) at mi...
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