Quote:
Originally Posted by ITD
...25,000 btu is not enough for any house in NH.
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Agreed, not enough for nearly all houses in NH, but quite adequate for the relatively few built to be superinsulated, and for a new house design the heat loss at design minimum outside temperature can be calculated fairly well. See my post #5 above in this thread. To be sure, some like to have heat blasting out to feel toasty.