I am wanting to put an exhaust fan in my shop. It is 30x30x10 with no ceiling. It has 2 9' bay doors and 1 access door. It is extremely hot in the summer so I would like some air flow. Also I do wood work in it and am wanting to paint my truck and other projects. My father in law got me a 42" industrial exhaust fan with 1.5hp motor for free from a job he did. Is it possible to make this huge fan work. I am afraid of pulling too much air and messing up my paint job on the truck by pulling in dubree. This is an extremely expensive fan I do not want to pass up. But will it work for my garage and how.
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Exhaust fan
- Thread starter Nickt6494
- Start date
SiGmA_X
Well-known member
Perhaps a filtered intake louver? A 1.5hp exhaust fan sounds amazing. We use a 1/4hp 16" in a 24x48x10 and its not enough.
1/2 Cup
Member Emeritus
Perhaps a filtered intake louver? A 1.5hp exhaust fan sounds amazing. We use a 1/4hp 16" in a 24x48x10 and its not enough.
It certainly needs to have intake filtration / louvers, perhaps you could try a variable speed drive on the motor as well!
1/2 Cup
Member Emeritus
In answer to your question, you will need a filter pad or filter media to prevent dust and **** coming in, a HVAC guy should be able assist with this.
Given that you have a 42 inch exhaust fan may find the air flow exceeds your requirements and it may be like trying to spray in a wind storm. A variable speed drive will give you the flexibility to control the air flow more effectively. Take the motor details to your sparky, as some motors are not suitable to run a VSD, and discuss your options.
That said you may want to install the unit first and see how it performs before going down this path. All the best with it.
Given that you have a 42 inch exhaust fan may find the air flow exceeds your requirements and it may be like trying to spray in a wind storm. A variable speed drive will give you the flexibility to control the air flow more effectively. Take the motor details to your sparky, as some motors are not suitable to run a VSD, and discuss your options.
That said you may want to install the unit first and see how it performs before going down this path. All the best with it.
2ManyProjects
Well-known member
- Joined
- Jul 18, 2013
- Messages
- 757
I am wanting to put an exhaust fan in my shop. It is 30x30x10 with no ceiling. It has 2 9' bay doors and 1 access door. It is extremely hot in the summer so I would like some air flow. Also I do wood work in it and am wanting to paint my truck and other projects.
How do you intend to separate the woodworking area from whatever will serve as the "paint booth"? Pulling in misc. random dust and such from the outside pales by comparison to THAT problem.
My father in law got me a 42" industrial exhaust fan with 1.5hp motor for free from a job he did. Is it possible to make this huge fan work. I am afraid of pulling too much air and messing up my paint job on the truck by pulling in dubree. This is an extremely expensive fan I do not want to pass up. But will it work for my garage and how.
The fan itself can probably be made to work; and several suggestions have already been made on that front. I'd probably attempt to use it as a dedicated exhaust fan for the paint booth, complemented with several large and VERY well-filtered passive intakes. Moving lots of CFM is fine -- a "good thing", even, given that you will be spraying all sorts of politically incorrect chemicals around -- as long as the raw velocity does not get out of hand (you want particulates to drop out and fall to the floor before they get to your wet paint). The next step is to ensure that you have NO other potential sources of (unfiltered) air ingress, including such things as your attic vents, door jambs, etc.
But until and unless you can COMPLETELY segregate the sawdust, sanding residue, etc., from the painting area, all of this will be moot.