I had my AC guy install this duct booster in my atic vent system in hopes it
may increase air output for my room furthest away from the furnace.
He said he got one that was one of the more powerfull ones (250cfm) think
he said? What I wanted is like 2-3 times more air flow and I think I might
gained maybe 1.5 times??? if that.
I guess I am just wondering if anyone else has tried one and how its working
An undersized blower doesn't have to be the problem.. It's not
unusual for lame brains to install systems so that the longest run is
undersized, too long, with too many turns, so that there is not
adequate air flow.
I have an aux blower installed on my longest run to the fartherst
upstairs bedroom. It has definitely helped. But gaining 1.5X is more
typical. I don't think to expect to gain 2-3x with the same size
duct work is realistic.
Closing off some registers on the same duct run will help. But I'd
be careful about closing off too many all over the place, because if
the system is poorly designed, that isn't going to solve the problem
and could make things worse.
It's really a shame this kind of thing happens, because it's not
rocket science to do it right during construction, but a real bitch
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