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Job Site Diaries

Job Site Diaries

Make Up Air For Commercial Exhaust Fans in Homes

comments (0) August 20th, 2010 in Blogs
Matt Risinger Matt Risinger, Blogger

Video Length: 3:7
Produced by: Matt Risinger

I'm a big believer in the motto "Build Tight, Ventilate Right" so I seal up my houses super tightly (Mark LaLiberte is my hero!).

Here in Austin, TX most of our houses are slab-on-grade, and I typically spray foam all the walls and use spray foam on the roof deck to create a conditioned attic space.

Our HVAC systems have a rigid pipe for fresh air and this works really well until you get a client who wants a mega-sized commercial range. Those ranges generate alot of BTU's of heat and the manufacturers recommend a equally powerful exhaust hood.  In a project we just completed we fully remodeled a 50's house that was roughly 1700 square feet.  As usual we fully foamed the house and made a super tight shell.  

But, the client specified a 600 CFM exhaust hood for the gas range.  

This video will show you how we supplied make-up air under the range so when the exhaust fan turns on it will actually be able to suck the moisture/smoke/gas out of the house.  

-Matt Risinger  

posted in: Blogs, remodeling, green building, , hvac, spray-foam, Blower Door Test, Vent Fan, Commercial Range, DCS Range, Wolf Range, Tight Houses, Make Up Air, Exhaust Fan, Hood Fan