

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The US MOTORS 20146 is a convection blower motor designed to move air through combustion heating equipment. Convection blower motors circulate heated air from the heat exchanger into the living space, making them a core component of pellet stoves, wood-burning inserts, and similar solid-fuel heating appliances. This motor is installed by HVAC technicians and qualified hearth-appliance service professionals during routine maintenance or component-level repair. It is listed as equivalent to Harman part numbers 3-21-33647 and 3-21-22647, making it a direct replacement option for those original components.
This motor is suited for residential solid-fuel heating appliances that rely on a dedicated convection blower to distribute warm air. A typical installation involves removing the failed OEM motor, mounting the 20146 in its place using the existing hardware, and reconnecting the wiring harness. Service technicians should verify motor rotation direction and mounting orientation before completing the installation to ensure proper airflow.
Listed as equivalent to Harman part numbers 3-21-33647 and 3-21-22647. Designed as an OEM-style replacement convection blower motor for compatible solid-fuel heating appliances that originally used those part numbers.
Installation should be performed by a qualified HVAC technician or certified hearth-appliance service professional. Disconnect all power to the appliance before beginning any motor replacement work. Verify that the replacement motor shaft rotation direction matches the original before securing the assembly and restoring power. Consult the appliance manufacturer service documentation for mounting and wiring procedures specific to the unit being serviced.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!