on the average, 25 BTUs will heat 1 sq ft.
If you want to heat the entire 4000 sq ft, you would need 100,000 BTUs.
Of course, that's absurd, as heating the whole house is unnecessary.
Figure out what the square footage of the 3 rooms you spend the most time in, and go from there.
Keep in mind that as heat rises, rooms upstairs will need less heat. Since you have cathedral ceilings, a ceiling fan may be a worthwhile investment, as it will circulate warm air instead of letting it all stay trapped up there.
Good luck!
2006-08-24 10:53:38
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answer #1
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answered by makawao_kane 6
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4000 Btu
2016-12-16 14:23:10
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answer #2
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answered by ? 4
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not sure but it takes one ton per 1000 sq ft with 1/2 a ton extra for good measure soooo u need 4 1/2 tons of hvac. not sure what that equates to in british thermal units,[btus]
2006-08-24 10:48:21
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answer #3
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answered by ? 2
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You won't get a reliable answer here. It depends on the type of heating system, air exchange rate, insulation, window and door quality, location, temperature settings etc.
If you use natural gas, you can contact the gas company and get a referral to a compay that does energy audits. You will have to pay a fee.
2006-08-24 10:47:19
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answer #4
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answered by regerugged 7
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ask the pope to pay for it
2006-08-24 10:42:57
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answer #5
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answered by wise old,man 3
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