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FoxyRoxy

FoxyRoxy

Joined on March 10, 2010

Last Post on March 10, 2010

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How many BTU's do you need?

@ March 10, 2010 1:55 PM in How many BTU's do you need?

I am putting in a horizontal  natural gas furnace in my crawl space, converting from electrical zone heating.  My home is new, well insulated, double pane windows and is 1320 sq.feet,no basement. One firm estimated 65,000 BTU's: a second 45,000 BTU's, both 95% efficient.  I don't know how to evaluate these estimates.  Help!