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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.
Some motors use capacitors, which are an electrical component necessary for motor operation. Most of the direct-drive motors sold on our site require a capacitor, which needs to be purchased in addition to the motor. There are different sized capacitors for different motors. Capacitors are rated in MFD numbers (Microfareds). Each motor shows what MFD capacitor is required. First check the motor to see what MFD capacitor is required, then select here the correct MFD capacitor for your new motor.
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.