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Registered
Join Date: May 2006
Location: Upstate New York
Posts: 1,463
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BTU is the amount of heat required to raise the temp of one pound of water one degree F. Latent heat of fusion(hidden heat) is 144 btu/lb. The Brits determined It is the amount of heat required to melt one ton of ice in 24 hours. 144btu/lb.X2000lbs.=288000btu./24 hours=12,000btu’s or one ton of cooling. Heating just uses btu’s as a constant. Heating devices are rated in btu’s only.
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