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But the most important thing you need to know is how much heat does your house require in the worst months? In other words, how much is it losing?
I can calculate it for you if you tell me your price per kW-h, and zip code.
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thank you
I did a heat loss calculator online. At a design outdoor temp of -20 and 0. I tried to be conservative with the R-values and it has design loss of 17483 and 13598
it would be nice to know if I'm any where near right