Fresh Air Supply Vent Video

By Tim Carter
©1993-2010 Tim Carter

VIDEO SUMMARY

If you have a central vacuum system, it pulls a lot of air out of the house and exhausts it outside. Bathroom exhaust fans, clothes dryers, gas water heater and other household items also pull air out of the house. Modern homes are very air tight. How is this air replaced in the house?

If you don't have adequate inflow, you can get a situation called back drafting. There is a special air vent intake to help replace the make-up air. It looks like an oversize dryer vent. However, it has two vent holes. One supplies air directly into your furnace. The other vent supplies combustion air for your appliances.

Back drafting can pull carbon monoxide back into the house. This special fresh air vent allows the appliances to pull in the air required and avoid back drafting.






COMMENTS

Ron
12 Sep 2008, 18:08
Where can I buy the fresh air damper I saw in the video or can you give me the name of the manufacturer?

Thanks
I am looking all over trying to find one
Calvin
05 Jul 2009, 06:50
Where can I find one of these fresh air dampers?
Peter
02 Oct 2009, 15:48
I like that vent, but like other users, don't know where to buy this intake vent. Any help would be appreciated. Thanks!
Steve
25 Oct 2009, 21:03
Tim, I see a theme among the comments. Please clue us in to where we can find such a device. This is exactly what I have been looking for but have had no luck finding one.

Have any of the others here found one?
Louis
10 Mar 2010, 10:06
Can you tell me where to buy this make up air vent that you talk about
Thanks
Louis
Gary
18 Mar 2010, 20:40
Seems the "builder" doesn't moderate the comments.

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