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Old 11-20-2007, 02:46 PM   #1
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Heat Loss Gain how to calculate

Need help to calculate Heat Loss/Gain for a Hydronic heating system, I have a 2 storey home in Toronto Canada and recently had a radiator moved and the building inspector requires a permit.

Any advise will be welcomed!


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Old 11-20-2007, 03:46 PM   #2
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Heat Loss Gain how to calculate

Heat Loss is calculated as:
(Square feet of wall or ceiling)/(average r value of the materials covering it)*(temperature differential) + btus needed for air infiltration loss.
It's more complicated than that, but that's the gist of it.

There are free calculators online. I like the one that Slantfin has on thier website.

I tear things down and build them up.

Last edited by Clutchcargo; 11-20-2007 at 04:04 PM.
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