I'm getting this external exhaust fan in a few days. No noise with a backdraft no more freeze outs either. $280.00 for the biggest one 430CFM power.

Nice report back and review it later want to do something in the man cave don't know if I should do exhaust or air purifier

You can count on my two cents... I will definatly take your invite and tell you all how it works after it gets installed; which will be before winter, and then I'll have the chance to see how it does.

Nice let us know how they work

I was told by my installer that he wants to do it Sat or Sunday after the Givings holiday, this week. Will keep u posted.

How many sq. feet does each one handle?

I just installed two home depot bathroom fans (110cfm and 1 sones) in my new garage/man room. Hope it's quiet and works

I am really dumb when it comes to those calculations however; when I told the phone rep I had a 9x10 ft room he said the large one would change the air about 20 times per hour. That is with a 420CMF rating.

I have a logical explanation for this; its a paddle 'wheel' fan: centrifugal, it came with a dozen hamsters inside and I've just now relocated the last of the little creatures. LOL... it is a giant of a fan though, thank goodness it'll be outside. The duct 'round' for the big one is 8". All in all, I am positive it will be constructive, and I'll know in a few days time.

HAPPY THANKSGIVING ALL..🇨🇮

If you have 8' ceilings, your room is 720 cubic feet. The fan is rated for 420 cubic feet per minute. Therefore it will exchange a little more then half the air in the room per minute. Hope you have everything tied down, lol.

:-k 😣 🤦 [frypan] hahaha that's funny I knew it would end bad when he said it has 8 inch pipe lol yea smoke free for sure

nice, can't wait to hear the report

what they said...report back...working on my cave now

Got er' in and you were right, it will pull the door out from my hand on the other side of the room, and close it. And its really loud. I would recommend some serious distance if you use this in a media or conversion room. I started with a plain switch but I think I can use a speed control and run it a little slower at times, then sweep the room, probably literally, at full speed. Oh well, I moved into the back bedroom last night anyway and I plan to pick up a couch for this room. I just wish it turned out to be a little quieter than it is but I think it's wishful thinking for anything with good suction power. Also ran into some problems with the grill, a square face with round back, meeting the duct coming in. Both are 8" and would neither fit inside or outside one another, so we had to jerry rig it for the time being just using the square grill to cover the wall opening. I do got something to haul out the smoke and maybe some of yours, just lean this way🐴 ....Ha LOL

What are the sones on this thing?

There is no official evaluated sone specs for this fan for the following reason & according to the manufactures website: Who would be stupid.enou xxxx ...since the fan is made for external use and its applicable noise rating is relevant to the distance in which it is used, the test and rating was never established. Nor is being established at this time.

I guess I was confused. I thought this was an inside fan, similar to a bathroom fan. Isn't that how you installed it?

The big contained unit mounts on the out side wall of a house and its duct brings it into the room to be exhausted. It does have a spring damper on the main unit so all you need is everything to get it past 5 1/2 inches or so into your room from the outside and then a grill to cover for the inside wall. It wires directly using indoor wiring and is rated for both a timer switch or speed control. Its very well made, has a 5 year comprehensive warranty, and when I get my speed switch, the noise will not be an issue running at a more moderate setting. Wiring and motor are built in a perminate housing for the outside elements and dust being passively drawn through the intake. So when you look at the picture, the round part is sent into the room and all the other is outside. You could flex tube duct between and not make it straight through if you wanted the actual fan further away from the intake grill. As long as the fan is connected to the duct somewhere it will actively exhaust. But this is an old house and we were fortunate to get it mounted and through straight ahead.

I'm converting a spare bedroom into a man cave/lounge. Can someone point me in the right direction on ventilation? I have brick exterior so I'll either have to vent through a window (slide up and down kind) or into the attic. I'm not cutting into the brick. If I vent into the attic, should I just let it vent directly into the attic or pipe it out all the way to the gable, or even up through the roof? The roof itself has the vinyl soffit vents, gable vents and a ridge vent, if that makes any difference.