Heatilator Eco Choice Exhaust Fan Blade For BIO120 (4-3/4" Single Paddle): 3-21-00661-AMP

This 4 3/4" combustion blower fan blade is the single-sided impeller that is used on the Heatilator Eco Choice BIO-120 Pellet boiler.

If any of the petals (fins) are bent, your stove may vibrate. To fix this, you can sometimes bend them back to help balance the motor. It is suggested to replace the impeller if the metal is corroded, if there is metal missing or if the impeller is unbalanced through wear and tear.

If you are replacing your combustion blower motor for any reason, it is suggested to also replace the impeller