Zehnder Charleston Bar (Spa) 2 Column Radiator

About BTU

A BTU, or British Thermal Unit, is a unit of energy commonly used in the field of thermodynamics and heating, ventilation, and air conditioning (HVAC) systems. It's a measure of the amount of heat energy required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure. This unit is widely used in the United States and some other countries for measuring the heating or cooling capacity of various systems, including furnaces, air conditioners, and heaters.