I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200).

On Oct 8, 4:08*pm, Phisherman wrote:
I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. *All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200). *

I don't think I've seen lower than 50 CFM. But for that long of a run,
you might be better off with a 50 CFM.
Is this for a bathroom? 10 CFM seems low.

"Mikepier" wrote in message
...
On Oct 8, 4:08 pm, Phisherman wrote:
I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200).

I don't think I've seen lower than 50 CFM. But for that long of a run,
you might be better off with a 50 CFM.
Is this for a bathroom? 10 CFM seems low.

Just buy a 50 CFM, make sure it's the kind with a squirrel cage blower, and
block off part of the intake with a piece of tin can.

Al

In article ,
Phisherman wrote:

I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200).

McMaster Carr has a good selection of small fans. Check their electronic
equipment cooling fans. As low as 1.5 CFM if you have DC available.

On Oct 8, 3:08*pm, Phisherman wrote:
I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. *All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200). *

The longer the run, the less cfm, is it is rated 50 by itself, at 30
ft it will be measurably less, 50 is not much. Bath vent fans I have
seen are 70-110 cfm, they dont pull alot of air. You need to fing a
spec sheet , 50 may be to low for you, it wont be 50cfm comming out of
30ft pipe.

On Oct 9, 7:37*am, ransley wrote:
On Oct 8, 3:08*pm, Phisherman wrote:

I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. *All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200). *

The longer the run, the less cfm, is it is rated 50 by itself, at 30
ft it will be measurably less, 50 is not much. Bath vent fans I have
seen are 70-110 cfm, they dont pull alot of air. You need to fing a
spec sheet , 50 may be to low for you, it wont be 50cfm comming out of
30ft pipe.

Strip the fan from a computer power supply, power it with a wall wart.

On Wed, 8 Oct 2008 15:51:16 -0700 (PDT), Mikepier
wrote:

On Oct 8, 4:08*pm, Phisherman wrote:
I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. *All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200). *

I don't think I've seen lower than 50 CFM. But for that long of a run,
you might be better off with a 50 CFM.
Is this for a bathroom? 10 CFM seems low.


Not for a bathroom but for a solarium to remove excess heat. I want
to keep as much of the conditioned air as possible. I'd like a
Panasonic, but I've only found a 120 CFM unit. I plan to reduce the
flow my installing a timer that goes on/off several times a day.
Anyone know about an inline 50 cfm inline squirrel-cage fan I can use?

On Oct 10, 7:55*am, Phisherman wrote:
On Wed, 8 Oct 2008 15:51:16 -0700 (PDT), Mikepier

wrote:
On Oct 8, 4:08*pm, Phisherman wrote:
I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. *All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200). *

I don't think I've seen lower than 50 CFM. But for that long of a run,
you might be better off with a 50 CFM.
Is this for a bathroom? 10 CFM seems low.

Not for a bathroom but for a solarium to remove excess heat. *I want
to keep as much of the conditioned air as possible. *I'd like a
Panasonic, but I've only found a 120 CFM unit. *I plan to reduce the
flow my installing a timer that goes on/off several times a day.
Anyone know about an inline 50 cfm inline squirrel-cage fan I can use?

Panasonic may be DC and a more efficent motor, but im not sure. Set up
one by thermostat, it will only run when needed. A timer, so it runs
on a cloudy rainy cold day? And what if 50cfm wont be enough, a
thermostat is best.

look up bathroom vents plumbing supply or ww Grainger on internet
Tony

"Phisherman" wrote in message
...
On Wed, 8 Oct 2008 15:51:16 -0700 (PDT), Mikepier
wrote:

On Oct 8, 4:08 pm, Phisherman wrote:
I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200).

I don't think I've seen lower than 50 CFM. But for that long of a run,
you might be better off with a 50 CFM.
Is this for a bathroom? 10 CFM seems low.


Not for a bathroom but for a solarium to remove excess heat. I want
to keep as much of the conditioned air as possible. I'd like a
Panasonic, but I've only found a 120 CFM unit. I plan to reduce the
flow my installing a timer that goes on/off several times a day.
Anyone know about an inline 50 cfm inline squirrel-cage fan I can use?