BTU (int)-inch/hour-square foot-°F BTU (int)/hour-foot-°F BTU (thermochem)-inch/hour-sq. foot-°F BTU (thermochem)/hour-foot-°F calorie (int)/second-centimeter-°C calorie (thermochem)/second-cm-°C kilowatt/meter-K watt/centimeter-°C watt/meter-K