When replacing a Sporlan 4181-00

or the system failing to initiate the pre-purge cycle

It is designed to interface directly with the heater’s integrated ignition control or transformer output

Built with 3/4" NPT male connections and featuring a 3/4" OD x 16" length standard glass

Robust Environmental Tolerance: Operates reliably in temperatures ranging from -40°F to 180°F

Heil Quaker ICP 1171769 Blower Wheel 321042-401 When replacing a Sporlan 4181-00Ensure cabinet performance and system static pressure balance with the Heil Quaker ICP 1171769 Blower Wheel. As a genuine OEM HVAC replacement part, this double inlet centrifugal wheel is engineered for International Comfort Products systems, including Heil, Tempstar, and Comfortmaker units. Measuring 9" x 6 1 2" with a 1 2" bore, this component is designed for clockwise (CW) rotation to maintain consistent CFM across the heat exchanger or cooling