Results 1 to 12 of 12
  1. #1
    Join Date
    Dec 2012
    Location
    Westerville, Ohio, United States
    Posts
    24

    Cigar Room ventilation

    I am in the process of designing a cigar room ventilation system and the only info i have is for commercial stuff. This is only a 11x13x8 room in a basement. Here are a few questions:

    1) what is the required air changes per hour? Can't find this in any of my books.

    2) room is completely sealed with exterior door, etc...what would the negative pressure requirement be?

    3) any suggestions on make up air requirements as a percentage to exhaust air? 1 to 1?

    4). Make up air tempering? HRV or resistance heat on intake?

    5). Powered dampers on intake and exhaust ducts?

    Thanks!

  2. #2
    Join Date
    Jun 2003
    Location
    Madison, WI/Cape Coral, FL
    Posts
    6,068
    For a small room like this, suggest a high quality, quiet bath fan with 70 cfm capacity. Panosonic make a quiet one. No make-up air to maintain a negative pressure. Operate the fan for an hour after the room is used.
    Regards TB
    Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
    Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
    Use +Merv 10 air filter. -Don't forget the "Golden Rule"

  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,817
    Gonna want 10 to 12 ACH. An HRV won't cut it, need a heater in the make up air. 1 to 1.5 KW. Based on 120 CFM of make up, so you'll need an exhaust fan that can do 140 to 160 CFM, to get a slight negative pressure in that room.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  4. #4
    Join Date
    Oct 2002
    Posts
    1,135
    I've done cigar bars. I DON'T SMOKE. Why are removing that expensive smoke?

  5. #5
    Join Date
    Dec 2012
    Location
    Westerville, Ohio, United States
    Posts
    24
    Customer's wife's requirements. She doesn't want to smell it anywhere in the house. Customer requested I model the HVAC design after a room he found here: http://www.ryandeyer.com/cigar-room/.

    I was shocked to see the amount of exhaust CFM (1200) and the intake air used. Made me question why this wasn't in any of my code books. At 1200 CFM, that is like 1-2 Air changes per minute!

    I do like the automatic dampers that were used though.

  6. #6
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,817
    You said this cigar room will be totally sealed off from the rest of the house.

    You not thinking a drop ceiling is sealing this room off from the rest of the basement/house are you.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  7. #7
    Join Date
    Dec 2012
    Location
    Westerville, Ohio, United States
    Posts
    24
    No, he is drywalling sealing plus no recessed lighting.

  8. #8
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,817
    In that article they may have used a 1200 CFM fan. but its 1200 CFM rating is probably at 0" static. And falls off greatly as static is increased. Other wise, he would need 15 KW of duct heater just to raise the fresh air from 30 to 70.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  9. #9
    Join Date
    Dec 2012
    Location
    Westerville, Ohio, United States
    Posts
    24
    What IWC negative pressure reading would we be shooting for? Thanks

  10. #10
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,817
    -.2 max. Thats 21 pounds of total pressure against a 3X7 door.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  11. #11
    This is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary, or ask questions of the OP here.

    You can find the rules for posting and qualifications here.

    Further infractions may result in loss of posting privileges.
    Last edited by beenthere; 02-14-2013 at 06:07 AM. Reason: Non Pro * Member

  12. #12
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,817
    deemancpa, this is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary or ask questions of the OP here.

    You can find the rules for posting and qualifications here.

    Your post has been deleted.
    Further infractions may result in loss of posting privileges.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event