As the owner, you must know how the boiler works. The system provides hot water or steam for hydraulic substrates, radiant heat, steam radiators, convectors or pipes through a series of pipes. The power of the boiler is calculated in British Thermal Units (BTU). The BTU is required to raise the temperature of one pound of water by one degree Fahrenheit to one atmosphere. It takes 1200 BTU to create 1 pound of steam.
The steam pressure in the boiler is measured in pounds per square inch (psi). Low pressure boilers have a psi of 15 or lower. The high