I > I have a forced air heating system in home, but one of my rooms upstairs is
I > preaty cold in winter. I tried adjusting dampers in ducts and
I > closing/opening heat registers, but nothing really works. Now I am
I > considering installing duct booster fan. There are types that goes inside
I > duct (inline) and other that goes on top of the register. Anyone had
I > experience with these things and could recommend which thype to use? Review
I > on google shows that common problems with them are:
I > 1. Noise
I > 2. Not as powerfull as most expected.
I > I would need something that would be easy to install, quite and powerfull
I > enough for big room.
We've had similar problems here. The kitchen was always too cold or
too warm so installed an in-line duct fan. Helped some. Main problem
was the ductwork would shift slightly and the fan blades would chatter
against the sides. Semi-solved that problem rigging up an adjustable
suspension. The real fix was when we had the addition built and they
replaced that section of ductwork with a larger-capacity duct.
Up here in the Computer Room (upstairs of the original 1«-story house)
it gets a little cool in winter sometimes. A duct fan mounted
magnetically to the vent helps. One problem is the unit slid down; a
piece of board and self-adhesive feet fixed that. (The vent is just
off the floor.)
(Not sure if the problem up here would have been corrected with a bit
of ductwork. They mis-identified the duct going to the bathroom as
the one going to the Computer Room. They thought the problem was a
partially closed damper -- plenty of air flow to the bathroom!! Most
of the duct to the CR is between the walls separating the bathroom
and the Sitting Room.)
We had a duct run to the Living Room separated some years back. I was
doing so work in the storage area where the furnace is and happened to
look and didn't think things looked quite right: the alignment of the
two sections was off by about two inches. There was air blowing out
of the duct but it was weak -- always thought it was because it was at
the end of the house (end of a long run).
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