Units of measurement
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To value
Calculations
BTU per square foot per second
Joule per square meter per second
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Information
BTU per square foot per second
BTU per square foot per second (BTU/ftยฒยทs) โ a unit of thermal flux density per unit area using British Thermal Units (BTU).
Joule per square meter per second
Joule per square meter per second (J/mยฒยทs) โ a unit of energy flow through a surface per unit time.