The NBK-20709 Blower Motor (115V, 50/60Hz) is a compact, high-reliability shaded-pole centrifugal blower motor designed as a direct aftermarket replacement for air movement in HVAC ventilation, draft inducers, small centrifugal blowers, exhaust fans, wood/pellet stove convection or combustion blowers, outdoor boilers, or compatible OEM applications. This motor drives the centrifugal wheel to deliver consistent, focused airflow (131 CFM), supporting combustion air supply, convection heat distribution, exhaust venting, or general circulation—ensuring efficient burning, even heat output, and reliable performance in residential heating systems like wood stoves, pellet stoves, or light commercial/outdoor boiler setups.
As a premium equivalent, it cross-references and fits seamlessly as a replacement for:
- Dayton 1TDP5 (primary OEM), 4C442, 2C610, 1TDP5A
- Fasco 50752-D500, 7021-3467
- A.O. Smith 9492 (in some refs)
- And compatible models from Grainger/Dayton, Fasco, or systems using this 115V shaded-pole centrifugal design (widely used in stove blowers, small draft/vent fans, or aftermarket upgrades)
Key Specifications:
- Voltage: 115V single-phase (50/60Hz compatible)
- Amperage: 0.52 / 0.65
- Insulation: Class B
- RPM: 2700 / 2880
- Airflow: 131 CFM
- Rotation: CWSE
- Bearings: Ball
- Frame: Compact 3.3"
- Protection: Automatic overload
- Mounting: Flange, bolt hole 1.5" x 4.09"
- Capacitor: None required (shaded-pole type)
Installation is plug-and-play (match existing wiring, mounting tabs, and wheel if assembly), making it a practical choice for HVAC technicians, stove service pros, or homeowners fixing reduced airflow, noisy motors, poor convection/venting, weak heat distribution, or performance issues—especially useful in Wisconsin homes with wood/pellet stoves or outdoor boilers during harsh winters. With durable, quiet construction for long-lasting reliability, the NBK-20709 delivers OEM-comparable performance at an affordable price—stocked and shipped