Mo Smoke cigar lounge (Home cigar room)

[cion]

Re: CFM question
Quote Originally Posted by cion View Post
Thank you Quo155, please let me give you a little more info so you can possibly answer the question as proficiently as you can. Thank you BTW.

The home the room is being built is in North NJ so it gets cold in the winter. Its my recreation room. The space I'm using is approximately 270 sq feet.

Doing the calculation for CFM I was given a number of 300 cfm however I know I'll need more than that especially if I have up to 5 smokers.
I was thinking 1500-1700 cfm exhaust pulling from two ceiling vents straight out of the house. I'm separating the hvac of my house and this room (not using dampers). So I have a few questions:

1. Is 1500-1700 cfm overkill? I'm using a speed regulator to adjust output depending the amount of smokers.

2. If I'm using that amount of cfm on exhaust, for fresh air, what should I do?

● Use no force air return, and allow the air to be pulled in naturally from the exhaust fan pulling OUT the air? (From negative pressure)

● Buy a fan (what cfm?) for air intake to PULL fresh air in from outside?

● Should I buy a duct heater? - The room will have 2 baseboard heaters as well as the fake fireplace heater.

● I've seen photos of the exhaust and fresh air intake side by side on the outside of the house in others cigar room. Doesn't that defeat the purpose of a fresh air intake? Wouldn't the intake pull the cigar smoke from the exhaust right back in?

I was going to have my exhaust and fresh air intake on opposite sides of the house.

EX 2015-03-19 16.44.56 copy.jpg

If you suggest both a fan to pull in fresh air AND a duct heater, will the heater warm the air as fast as the fan is pulling it in? Other words...how do you pair the two? (A intake fan and duct heater)

Lastly...Air conditioning.

I'm thinking of going portable AC and connecting it to the return duct for fresh air to the AC unit. I'm not sure about the best way to do AC on a small budget so if you guys have any suggestions let me know. There is no windows in or near the room.

Thanks!

Didn't mean to ask so many questions at once, but it's all HVAC related and I need to start my purchases ASAP. We're starting demolition on a couple of walls and ceiling this sunday.

Quote from Quo155

Hey Cion! For your room size and location, I'd shoot for 700cfm exhaust, minimum.

1. The 1500+ really is overkill, IMHO and I'd keep it between 700cfm and 900cfm...as long as the number is more than whatever you decide to feed into the room. A speed regulator is a great idea!

2. 675cfm is about right for fresh air, as long as the number is less than your exhaust. It doesn't sound like you'll need a duct heater as you'll have plenty from other sources. If you're not supplying the room from your main system, then I would use a fan to pull from the outside, in...672cfm.

Portable AC's can work in your area (not here where I live!) and you can get a decent EdgeStar unit that does not require a window, you can install it with the supplied ducts to a wall with vents. It pulls air from the outside and from the inside. They're not real efficient at cooling down here but reviews say they work in your area. They are also a great dehumidifier, as a bonus...if even needed where you are. They run around $500-$600.

Whatever route you decide to go, I hope this info helps some...