What size of gas fireplace I need?

Hi Fellas, What BTU I need to warm up a detached house with living area around 1200 sf (in two floors) using a propane fireplace in a cold area like New York? Each BTU calculator on internet gives me a different idea. Even each retailer says what they are selling is good, one says 25000 and the other says 30000. Can people who have experince using fireplace give me an idea? Thanks
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Dave wrote:

If they did not come out and personally measure your home, there is no way they can accurately give you an answer. They are guessing.
There is a lot more to it than SQ FT. There are standard "manual" formulas that compute the size. If someone does not do a manual on your home, ignore any estimate they give.
Find a contractor that knows what they are doing. If they don't know how to measure, you really don't want to deal with them.
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Joseph E. Meehan

26 + 6 = 1 It's Irish Math
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What is the insulation (walls and roof)? What type of windows and doors, how many air exchanges per hour? You need to define the problem a little better.
RB
Dave wrote:

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The insulation for walls and roof is very good (from my inspector). There are not too many air exchanges (four a day). windows are two layers vaccumed (sorry I do not know what this type of window is called but I mean windows have also good insulation).

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Dave wrote:

And how many windows of what size facing what direction and in what area of what country do you live? Single story or multi? Basement or not. What is the shape of the home, with or without garage, how is garage situated with respect to the home, what size garage, what common walls (size and location) Trees? etc. Lots of questions. Frankly I am not at all sure of all the information needed but it is not really practical to do this without a personal visit by a professional.

--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math
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