When buying a used furnace motor, there are a few things that you will want to consider. Here is a list that can help guide you through the shopping process.
1. Check the Model
Checking the model is important, especially if you are just replacing the motor. You want to make sure that everything matches up with the furnace that you currently have and that it can adjust and fit into it. Also, make sure that even though it is the same brand, that it matches up with the model you have already.
2. Don't Skimp Completely
While you are probably buying a used one to save on money, or a big reason at least, it isn't always the best idea to go as cheaply as possible. If you buy cheap now, you may end up paying big bucks later to fix it. Spending more now, even just a little more on a better used motor, can really save you money in the long run.
You will also want to think about the speed of the motor. It may be more difficult and a tad more expensive, but if you can, you will want to try for the variable motor speed. This type helps to give your home heat evenly.