The Hydrotherm 58-1858-115V 2-Speed Inducer Assembly is a replacement combustion air component designed for compatible gas-fired heating equipment. It operates by drawing combustion air through the heat exchanger and safely directing exhaust gases into the venting system, supporting proper burner operation and efficient combustion. This assembly is commonly used in Hydrotherm furnaces... https://www.partshnc.com/58-1858-hydrotherm-115v-2spd-inducer-assembly