To Convert: Into: Multiply By:
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pounds water evap. @ 212°F btu 970.9
pounds water evap. @ 212°F btu (IST) 970.2
pounds water evap. @ 212°F btu (mean) 969.4
pounds water evap. @ 212°F joules 1.0237 X 10^6
pounds water evap. @ 212°F joules (international) 1.0234 X 10^6