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Old 01-11-2009, 05:55 PM   #1
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I need an exhaust fan suggestion!?

I am in need of a fan...it will be in my basement (wich is fairly large) and needs to move enough air to ventilate the area from fumes from furniture refinishing...The fan will be placed in a verticle round chimney style duct (that runs up about 25 ft) and it should run fairly quietly...I havent bought an exhaust fan befor, so Im not familiar with judging how much power or air flow I will need the fan to move, or the different styles of mounting, etc...(it should also be strong enough -that when piped - it will create a downdraft in an enclosed area below my table saw)...


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Old 01-11-2009, 10:06 PM   #2
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You will need an ,"explosion proof fan". I bought mine at Graingers.


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Old 01-12-2009, 04:46 PM   #3
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If you are trying to both eliminate fumes and collect the saw dust from the table saw, I'd consider using two different exhaust fans. One would be like a bathroom exhaust fan for the fumes then I'd get a dust collector for the table saw. Even a shop vac would work. This doesn't eliminate the need for an explosion proof fan as mentioned prior for the area exhaust. If you need alot of ventilation you should also look at adding a fresh air intake to make up air vented out.
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Old 01-18-2009, 01:33 PM   #4
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Thanx for the input...to clarify a bit...what I have is an unused 7" round metal vent in my basement ceiling that gets air from the roof thats about 25' away (its an old chimney that was used for a furnace - Ive since had a "high eficiencey" furnace that uses another air intake out the side of the house)...what Id like to do is...put a fan to handle only exhaust fumes (not strong enough to pickup and remove saw dust) below that chimney duct...then Id like to have a Y...one end of the Y would have a temporary cap on it (to be used at a later time to maybe create neg pressure under an enclosed saw...)...the other end of the Y would have about 25' of ductwork toward the area where I would be stripping furniture and be used to remove fumes from that area...on the opposite side of the basement is a small window that I could open...

I think Im looking for an inline fan...Id be interested in an opinion on the cfm I might need...

I also have another question...Can flexible ducting (all Ive been able to find is flexible duct that is insulated - and I dont believe I need it to be insulated) be connected to ridged round metal duct? how?

Last edited by Leprichon; 01-18-2009 at 01:37 PM. Reason: I wanted to add a link to a picture
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