Bob wrote:
It's
much worse to stop and start them all the time. Once those motors get going,
they have very little strain on them.



Could you explain why?

The bearings are being worn whenever the shaft turns.
What typically breaks on these,....... the bearings.

What wear is caused by starting and stopping the motor? These
typically do not have a centrifugal switch or anything like that so
what's the problem with starting and stopping?

On a normal winter day my furnace and blower run 25% of the time,
seems like a waste of energy and wear and tear on the blower bearings
to run the blower 24/7.

Mark