Woa! Check out S&P's pimptacular new TD-SILENT series of fans!

[queequeg152]

for silent operation u really want a big back swept centrifugal blower thats slowed way down to like 600 rpm.

over size duct for like 400 fpm and over size your filters for less than .1 inch static pressure.

if u ever run an ECM air handler... just listen to how silent they are at the 600 cfm "constant circualtion" function.

u might look at a Panasonic whisperline unit. i bought one for my shower... only like 400 cfm but its pretty much silent if you remove the butterfly damper.

 

[Mikell]

Sorry, I mean an insulated box for the fan.

Actual box fans are shit, agreed. Better than nothing for circulation but by a slim margin.

I wanted to like S+P for years. Just recently, I had one in my hands. It was shit flimsy ass construction and piss poor airflow with no pipe attachments.

Like everyone said.

But seeing is believing, and maybe it will function adequately to your requirements. Feel free to "na na na na" me if it does.

 

[Mikell]

Ahh. No, a two year old six inch.

I don't know why people are hung up on jamming everything in the tent. I should, I was.

I knocked a few decibles and gained head room by removing the fan and muffler out of the tent. 4' of insulated rigid duct between each fixture worked a peach. Significant noise transfers directly out the carbon can when they are lumped together.

I have strong feelings about fans. As you see now.

S+P burned me like Dyson. Great on pitch, fail at life.

Maybe I should figure out why I care.

I did build two box fans out of plywood and warehouse air handlers. Never tried load but they moved a fuckton cfm. That's a real measurement. GH exhausts. You woulda loved 'em.