Russell griffiths Posted February 13 Share Posted February 13 Evening, filling in Jeremy Harris heat loss calculator I understand Jeremy built this to work out where best to spend his money in his build. however if I want to use it to help understand the size of a heat pump I need, what should I put in the outside temperature box. jeremy used minus 10, so probably the worst case scenario should I use a more real world figure like 0 or minus 2, the met office is saying the average minimum temp in January is 1.23 whats best to get some real world figures out of it. cheers. Russ. Link to comment Share on other sites More sharing options...
ProDave Posted February 13 Share Posted February 13 I use -10 because that is quite a realistic winter temperature here. What figures are you getting at 0, -2, and -10? Link to comment Share on other sites More sharing options...
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