The US Stove Company 80874P 500 CFM circulation blower installs on the rear of your furnace in order to push air through your home's ductwork. This 1/15th horsepower blower is designed for US Stove models 24A, 30 A, 1300, 1400 and 1500 series furnaces. Designed to use 120 volts, it is an easy replacement for worn out or non working blowers. It is rated at 550 CFM and will replace a factory US Stove blower with its standard mounting footprint. This model replaces previous model 80230 and 80594P.