Ventilation Question

Well, not so great news...

The portion of the attic above this room does not have any gable or roof vents. My roof is clay tile, so I'd be looking at hiring a roofer to remove some tile, cut a 14"x14" hole for a dome vent and then tile/patch around it.


If I had somewhere for the air to go ,the HVAC guy recommend going with one of these fans:
https://uploads.tapatalk-cdn.com/202...5e7f55c076.jpg
Said that's what he uses for his wife's cigarette room - lol. Check the cfms.... 1472 - right at Mark's target. Said I could either open the window or just pull from the rest of the house.

Whew! Dodged that bullet. That's one more project you don't have to do. :)

Maybe you need to make some kind of box that holds about 1 cubic foot of activated carbon and then use a small blower to force air thru it. Maybe add a HEPA filter to the stack if it won't remove the smoke particulates.

Porbelm solvd. Ur welcome.

So up is not ideal then out is thru the side is your option

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Originally Posted by josh lucky 13

So up is not ideal then out is thru the side is your option

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Side is out - no where for fan placement. Side could be used for air intake, but not needed.

The stigma for me is cutting a hole in the roof - just seems like no good ever comes from that, plus the escalating costs. That and it would probably be unsightly on the front facing side of the house.

@WNYTONY I like your set up.
I agree with @josh lucky 13
Sounds like it would be easier to go through a side wall, ideally in the attic, rather than through clay tile roof.

It might be easiest, although not as refined or aesthetic, to put a fan in an open window, double hung or sash like @Emperor Zurg said would be best so that it doesn’t just suck air in from outside and right back out.

In the set up I am contemplating, it is a basement room with no windows. Up into the ceiling and out the sill is my plan.

I recently installed an exhaust fan for our cooktop. Up and out the side.
When you are getting up in the 1400 CFM, you are looking at 8” exhaust ducting or larger. Straight, smooth sided ducting provides the best flow.

I say a blower installed in the attic, ducted to the outside with an intake in your ceiling. Less noise that way too as it is remote. Some systems have the blower at the distal exhaust end.

I know it is not exact, but same concept. My cooking exhaust.

You could dress it up and build a box cover to match the house if needed, or even just painting to match will help.

https://uploads.tapatalk-cdn.com/202...68b13a1ad2.jpg

The ducting to outside. I still need to enclose it. Run something like this in the attic.
https://uploads.tapatalk-cdn.com/202...84f199bf81.jpg


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Originally Posted by SoCal gunner

Side is out - no where for fan placement. Side could be used for air intake, but not needed.

The stigma for me is cutting a hole in the roof - just seems like no good ever comes from that, plus the escalating costs. That and it would probably be unsightly on the front facing side of the house.

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2 options thru the ceiling pipe to outside wall to vent out. Fan can be in ceiling just above the sheetrock
Option 2 vent in wall high up vent down between the studs put the fan there then vent out the house.

If you have soffits, you could vent up through ceiling then exhaust down through soffit. Nothing visible on outside then.

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Originally Posted by Regiampiero

The reason the curtains and carpet smell is because of the smoke scrubber. That's a particle ionizer which works by charging the smoke particles so they precipitates faster. The pro is that it eliminates the particles out of the air quick, the con is that the particles coming out are charged (like a static balloon) and they stick to the first surface they come in contact with, so floors, furniture, curtains and so on. Hence the lingering smell. The same happens in my garage, but it's a garage and I don't care. I think you have a pretty good setup where you shouldn't even need to run that scrubber, just my two cents.

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That's pretty interesting. Everything I've ever read on doing a smoking room recommends leather chairs, no carpet or drapes as the smoke smell will stick to them but nothing was ever mentioned about charged particles. Most don't even mention using an ionizer - I just found it helps quite a bit for my setup.
That being said, I'd be willing to try it out for a little bit and and see how it works. Just finished my nightly and I unplugged the scrubber so I'll see what it is like with just the fan going.

@SoCal gunner and @Nature - 1400 cfm is alot of air to move. When I did mine I remember calculating and using info found on the interwebs and if I remember right my 360 cfm was higher than recommended for this size room. I want to say maybe 250 was the recommended and I went the next size up but that was also because I wanted to 2 drops pulling. You guys are anticipating multiple smokers so maybe that's it.

I say you go the opposite direction, seal the room and just marinate in the smoke. :stogie: