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Old 09-07-2011, 02:41 PM   #1
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Default Exhaust hood ideas

Hey everyone,

I'm in the middle of an electric build which will be located in my basement. I'm looking for exhaust hood ideas, so those of you who use one, tell me a bit about it or post some pics. I'm just looking for some ideas...

The only requirement that I do have is that I plan on making a "coupling" board (for lack of a better word) where the exhaust duct will be attached to a wood board that will then fit into a window opening in my basement. This window is located about 2 feet away from the boil kettle.

Thanks!

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Old 09-07-2011, 03:21 PM   #2
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Someone I know had a local fabricator create a hood for them out of galvanized steel. MUCH cheaper than what you'll typically find for range hoods of a significant size which are typically used in the food industry and as such are stainless, and therefore pricey.

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Old 09-07-2011, 05:58 PM   #3
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Well, that is a great idea, but I would still think that is fairly expensive. I was hoping to go the "design a plywood box and line it with a moisture barrier" route... but I'm having trouble coming up with a good design and a material to line the hood with..

Any idea what that metal fabricator cost him?

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Old 09-07-2011, 06:02 PM   #4
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what about spray on rubber for the lining?

http://www.acehardware.com/product/index.jsp?productId=3573712&CAWELAID=338209579

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Old 09-07-2011, 06:13 PM   #5
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Walker, that is a good idea, have you had any experience with it? I don't have any experience with exhaust hoods and condensation. I would be worried that condensation would accumulate in the hood, and that the paint won't be smooth enough to where it could drain properly... but of course this is only an issue if condensate forms inside the hood.

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Old 09-07-2011, 06:14 PM   #6
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nope. sorry. no experience. just throwing out ideas.

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Old 09-07-2011, 06:34 PM   #7
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Ok, well I'll keep that in mind, and may even try it out, its cheap enough.

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Old 09-07-2011, 07:16 PM   #8
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See these (exactly what you are looking for):

http://www.homebrewtalk.com/f51/any-diy-exhaust-hood-builds-cheap-253377/#post3038185

http://www.homebrewtalk.com/f51/any-diy-exhaust-hood-builds-cheap-253377/#post3038279

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Old 09-07-2011, 07:49 PM   #9
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Quote:
Originally Posted by Zeppman View Post
Any idea what that metal fabricator cost him?
I forget at this point, sorry.
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Old 09-16-2011, 06:46 PM   #10
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Ok, so I went with the plywood box lined with FRP paneling route. It doesn't look like much, but I'm a brewer, not a carpenter I believe it will work just fine. Anyway, my next problem to solve is how to route the duct and where to install the fan.

My plan is: on brew day, I will open the window and place a wood board that is cut to fit the entire window opening exactly. This board will have a piece of exhaust duct placed through it, and then it will "periscope" up out of the well. I will then have the make-up air inlet hole below the exhaust duct, and I figured I'd have to attach some kind of (probably flexible) duct to that that will lead inside, and probably on the other side of the room so the exhaust hood isn't just sucking up and spitting out the return air. My question is, how should I position the fan and exhaust duct? Should I mount the fan right in the wood panel that will fit in the window opening, since there won't be much room between the hood and the window? I was also unsure about what fan to go with, and how much CFM. I'm loosely following Kal's (theelectricbrewery.com) design, and he suggests a 450cfm 6'' diameter fan. I don't know if that will be overkill for my system.

hood1a.jpg   hood1b.jpg  
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