When the combustion blower on your PelPro pellet stove fails, the stove cannot safely vent exhaust gases and will shut down. The QuadraFire 812-4400 is a direct-replacement exhaust blower motor engineered to restore proper draft and combustion performance. Running at 2900 RPM on standard 115V household current, this motor matches the original electrical and mechanical spec so no modifications or adapters are needed.
The exhaust blower (also called the combustion blower) draws flue gases out of the burn pot and through the exhaust vent. Over time, heat cycling, ash buildup, and bearing wear cause the motor to seize or run slowly, leading to poor combustion, error codes, or automatic shutoff. Replacing the motor with a correctly rated unit restores full draft and lets the stove's control board operate within its designed parameters.
The 812-4400 is also listed under NBK Parts number 20141 -- both numbers refer to the same motor. If you have been searching under either reference, this is the correct part.
115V / 60Hz input with a 2900 RPM output matches the original motor spec exactly, keeping draft balanced with the stove's fuel feed rate.
Factory clockwise shaft rotation -- critical for proper airflow direction through the exhaust scroll. Confirm your stove's rotation before ordering any blower motor.
Class B motor insulation is rated for continuous operation up to 130 deg C (266 deg F) ambient winding temperature, suited for the heat environment of a pellet stove exhaust path.
Sold as QuadraFire 812-4400 and NBK Parts 20141. Both are the same unit -- useful when cross-referencing service manuals or ordering histories.
This motor has been specified for the following PelPro pellet stove models. Match your stove's model number (found on the data plate, usually on the back or side panel) before purchasing:
QuadraFire 812-4400 and NBK Parts 20141 are identical units. If your service invoice or parts lookup shows either number, this listing covers both references.
Before replacing the motor, confirm the blower is actually the failed component:
At 0.50A draw, this motor places minimal load on the stove's control board relay. No external capacitor or relay upgrade is required for the listed compatible models.
Exhaust blower replacement on PelPro stoves is a moderately straightforward task for a handy owner with basic tools. General steps include:
Clean the exhaust blower housing and vent pipe at the start of each heating season. Ash-packed housings are the leading cause of premature motor bearing failure. Annual cleaning can significantly extend motor service life.
Installing a counter-clockwise motor where a clockwise motor is required will push air in the wrong direction, causing smoke spillage and possible carbon monoxide hazard. Confirm clockwise rotation is correct for your specific stove before installing.