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Forum topic by mision56 posted 02-07-2017 06:20 PM 441 views 0 times favorited 3 replies Add to Favorites Watch
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mision56

43 posts in 420 days


02-07-2017 06:20 PM

Topic tags/keywords: ventilation finishing spray booth

Hi All,
I have a spare 4” dryer duct in my workshop. Normally I finish Oil based outside, but I’m wondering If I purchased an inline dryer vent fan If I could move enough air to finish oils inside while it’s cold? My shop is fairly small (10×15) in the basement and could easily be blocked off with plastic and insulation to be about 6×10. I’m curious if I could get a fan that would move enough air for the smell to not travel through the rest of the house?

If so, what kind of CFM would I need to move this much?


3 replies so far

View gwilki's profile

gwilki

170 posts in 1314 days


#1 posted 02-07-2017 10:14 PM

I seriously doubt it. I finish in my basement shop and have a 20” exhaust fan drawing outside air from a window on the opposite wall from the fan. My shop is 12×20, and the smell still gets into the upstairs.

-- Grant Wilkinson, Ottawa ON

View gmakra's profile

gmakra

5 posts in 432 days


#2 posted 02-07-2017 10:56 PM

4 inch duct only moves about 90 CFM.
It sounds like you have about 1200 cubic feet of air in your shop.
You need to think about how many air changes per hour you want to remove the odor.
You will need to factor in make up air to match the air lost.
400 CFM exhaust and make up air will change the air in your shop once every three minutes.

View mision56's profile

mision56

43 posts in 420 days


#3 posted 02-15-2017 03:47 PM



4 inch duct only moves about 90 CFM.
It sounds like you have about 1200 cubic feet of air in your shop.
You need to think about how many air changes per hour you want to remove the odor.
You will need to factor in make up air to match the air lost.
400 CFM exhaust and make up air will change the air in your shop once every three minutes.

- gmakra

Thank you, exactly what I was looking for!

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