Air intake for utility room?


  #1  
Old 09-21-18, 11:28 AM
D
Member
Thread Starter
Join Date: Dec 2012
Location: USA
Posts: 138
Received 0 Votes on 0 Posts
Air intake for utility room?

My house has a small utility room with a gas water heater and no ventilation to/from the outside (other than the gas heater duct of course!).

I have the exhaust issue solved--a 5" duct with inside elbow leading down toward the floor, but what is the appropriate device to use for through-wall intake <12" below the ceiling? I presume something with a damper defeats the purpose.

I live in the California Bay Area so cold air is not a giant concern.

Thanks a lot.
 
  #2  
Old 09-21-18, 04:15 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 70,130
Received 2,965 Votes on 2,675 Posts
Gas heater duct ?? Would that be the flue line ?

You would use an outside hood with no damper for fresh air in..... in a temperate zone.
If you were in a cold zone.... you'd want a motorized damper.
For a water heater...... a 4" vent is plenty.

I'm not sure what you are referring to at 12" below the ceiling.

Name:  5_fresh air hood.jpg
Views: 279
Size:  16.0 KB
 
  #3  
Old 09-29-18, 08:40 AM
D
Member
Thread Starter
Join Date: Dec 2012
Location: USA
Posts: 138
Received 0 Votes on 0 Posts
Thank you! Just what I needed to know. The code says these openings must be within 12" of the ceiling.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: