Units of measurement
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Calculations
Watt per square meter
BTU per square foot per hour
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Information
Watt per square meter
Watt per square meter (W/mยฒ) โ a unit of power density used to express the power per unit area.
BTU per square foot per hour
BTU per square foot per hour (BTU/ftยฒยทh) โ a unit of thermal flux density per unit area per hour.