Thread: Hmmm... what do you think of this?
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Old 10-31-2005, 10:34 PM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
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Quote:
Originally Posted by Jim H
For further thought, those of us in colder climates, a 100,000 BTU output furnace could be considered 'typical' for 1,500 square foot home.
I agree with all the calculations.

I'm curious to know if you have ever had a 100,000 BTU furnace running flat out in MI? Meaning that the house was losing 100,000 BTU/hr.? If so, what was the ambient temperature? I'm guessing that it had to be lower than -15°F.??

The furnace that I have has an output of about 80,000 BTU with the smaller .80 nozzle. It has approached a 75% duty cycle at 0°F. ambient. The house is standard 2 x 4 constuction without any additional insulation.
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