This may sound like an obvious question to some of you, but if a
furnace-type blower is overly restricted, so has a higher pressure drop than
it is designed for, what would you expect to happen to the blower motor?
Eventually fail from over-heating?
Just finishing up a shop-built air cleaner/outfeed table/downdraft table
(based on a design by charlie b - thanks), and with it running on low, my
manometer readings show almost twice the pressure drop that a typical
furnace is designed for.
I'm pretty sure the blower is over-sized for this application. Even on low
speed, it moves a lot of air. But there's no reason to change it now; it
works. I'll use it unless and until the motor does fail.
Just curious whether I might expect it to run for a long time. Or.......
expect to see smoke coming out of it anytime.