I have a bonus room over my garage upstairs, which is at the end of
about a 40' run of 12x8 duct (furnace is downstairs on opposite end of
house). My heating is zoned (up and down), but the only way I could
get any real airflow to the bonus room was to close down way too far on
the branch duct dampers upstairs.

I installed a fantech FX8 8" inline fan as a booster fan, controlled by
a thermostat in the bonus room (using an Argo AR822 relay). I used
sound isolation mounts (rubber plate form mounts from Mcmaster Carr),
and the fantech neoprene mounting clamps to connect it to the fuct work
(prevents transmission of sound).

It works great, and I cannot hear the noise of the fan when standing in
the room directly below it. It provides alot of air, and has solved my
heating problems.

I read some previous posts on this board talking about too much noise
or ineffective fans. This solution works great.

Tim wrote:
I have a bonus room over my garage upstairs, which is at the end of
about a 40' run of 12x8 duct (furnace is downstairs on opposite end of
house). My heating is zoned (up and down), but the only way I could
get any real airflow to the bonus room was to close down way too far
on the branch duct dampers upstairs.

I installed a fantech FX8 8" inline fan as a booster fan, controlled
by a thermostat in the bonus room (using an Argo AR822 relay). I used
sound isolation mounts (rubber plate form mounts from Mcmaster Carr),
and the fantech neoprene mounting clamps to connect it to the fuct
work (prevents transmission of sound).

It works great, and I cannot hear the noise of the fan when standing
in the room directly below it. It provides alot of air, and has
solved my heating problems.

I read some previous posts on this board talking about too much noise
or ineffective fans. This solution works great.

I am glad it works for you. Many people report little success with
booster fans in general. I would have to say that they are not a good
substitute for a well designed system. For that you need a professional how
knows and cares about what he is doing. Having said that in my current home
I had one room that was always too cool or hot. I would have preferred to
rebalance the system for the start, but it has too many other issues and
they are just going to wait until I am ready to do it right. I did add in
in-line booster fan and it is controlled by the furnace. It does work well,
but I will replace it and redesign the ducts when I need to replace the
furnace - AC.

--
Joseph Meehan

Dia duit

Why wasn't it sufficient to just use FanTech's neoprene compliant
couplings? I'm about to install a FX8 blower in my basement for a
cooktop down draft exhaust and would like to keep it as quiet as I can
reasonably do. FanTech also has an in line muffler that I'm curious about.

Boden

Tim wrote:
I have a bonus room over my garage upstairs, which is at the end of
about a 40' run of 12x8 duct (furnace is downstairs on opposite end of
house). My heating is zoned (up and down), but the only way I could
get any real airflow to the bonus room was to close down way too far on
the branch duct dampers upstairs.

I installed a fantech FX8 8" inline fan as a booster fan, controlled by
a thermostat in the bonus room (using an Argo AR822 relay). I used
sound isolation mounts (rubber plate form mounts from Mcmaster Carr),
and the fantech neoprene mounting clamps to connect it to the fuct work
(prevents transmission of sound).

It works great, and I cannot hear the noise of the fan when standing in
the room directly below it. It provides alot of air, and has solved my
heating problems.

I read some previous posts on this board talking about too much noise
or ineffective fans. This solution works great.

This is Turtle.

i'm in the HVAC business and will say rarely will i ever see a fan
booster fan ever work out. i'm glade to hear your problem was solved
with this booster fan.

TURTLE