Can I install more powerful blower motor 3 / 4 instead of 1 / 2?
I have a blower motor in my furnace, which draws 1/2 house power (see attached photo).
The details of this motor can be found here:
- https://www.repairclinic.com/PartDetail/Blower-Motor/51-22858-01/2638135
- https://www.supplyhouse.com/Rheem-51-22858-01-1-2-HP-1075-RPM-3-Speed-Motor-120V
My question is, can I install a more powerful motor to achieve stronger airflow in my house? Which I believe is about the same size, or at least the same diameter: https://www.supplyhouse.com/Rheem-51-25023-01-3-4-HP-1-PH-48-Motor-1075RPM-120V
The key differences I found so far include:
- 1/2 HP vs 3/4 HP
- Number of Speeds: 4 vs 3
- 1075 RPM vs 1050 RPM
Posted Jul 19, 2025, 2:38 PM UTC
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