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Indirect Water Heaters
BTU stands for "British Thermal Unit" and measures the heating or cooling capacity of a furnace or air conditioning unit. Enter your homes square footage to see how many BTU's are required to adequately heat or cool it.
Enter the square footage of your home (or room) and press Go.
This calculator is for estimating capacity only, and does not give exact equipment capacities for your home.
These water heaters can be used with along with your hot water boiler to provide domestic water for your home. Your boiler will continue to heat your home, as well as provide the hot water used for drinking, cooking and bathing, etc. Using an indirect hot water heater to provide your domestic hot water is more efficient than a standard independant hot water heater, because it utilizes the heat already created by the boiler instead of creating its own heated water. Save money and install an indirect hot water heater.
In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.