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Home Brew Forums > Home Brewing Beer > Electric Brewing > ventilation near window
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Old 01-03-2011, 03:33 AM   #1
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Default ventilation near window

Had a question on what type of exhaust or ventilation system may work best and be the easiest for me to use in my new brewing space. I'm building an all electric system currently and thinking ahead to what I may need to do for ventilation of the BK and HLT. The window in my basement sits right above the BK and just beside the location of the HLT which will have my HERMS coil inside.

The window open dimensions are 11" tall and 9 1/2" wide. The window sits 18" above the top of my BK.

I'm looking to see what size fan I may need to buy and what duct work, if any I would need to avoid any condensation buildup on the ceiling above (which has hardwood floors just above it in our kitchen. Thanks for the help. Picture below is of the brewing space itself.

photo-4-.jpg  
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Old 01-03-2011, 05:44 PM   #2
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got the same sort of thing as you, i will get you a picture little later, used a fan same as used in the electric brewery.com guys did, except i used 6 inch ducting, do you have another window to open for return air, also might want to consiter supplemental heating for the air if you used outside air for make up air

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Old 01-03-2011, 06:44 PM   #3
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here is what i did, only thing i would do diferent is maybe put the bk directly uner the vent instead of off to the side.

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Old 01-03-2011, 07:09 PM   #4
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Thanks for the reply bf514921!

Is that just a regular range vent hood that you've attached the duct work to? Also, I looked at that same fan but thought it may be a little much for me in the way of power. I'm hoping to buy a smaller fan that would work well for what I want. I am looking at how to construct or the real need to construct a hood over the kettles. Thought about doing it with just a small constructed hood from galvanized steel or something cheap like that to hang from the rafter then have the duct at the top going right out the window. Keeping it very simple hopefully.

I do have two other windows that can be opened in another room adjacent to the brewing room in the photo. I think that should be enough fresh air input. In your picture, is the pipe just beside your ducting for your fresh air?

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Old 01-03-2011, 11:08 PM   #5
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My brewery has a 12" squirrel cage mounted in the window and when i want to use it it has a simple slide gate I open. It' made of plywood but it blows under my deck so it's not seen.

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Old 01-03-2011, 11:49 PM   #6
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"is the pipe just beside your ducting for your fresh air?"
Was originally until it started sucking in exaustem steam, so now i open another window and taped over the other vent so it is closed now.

"small constructed hood from galvanized steel or something cheap like that to hang from the rafter then have the duct at the top going right out the window. Keeping it very simple hopefully."

would work great, you just need something to "catch" the steam and then have the fan suck it out, I have tried several fans and eventually settled on this one, regular low grade range hood wasn't enough, had a squerel cage from a range hood that just wan't enought, the one in the picture is the current setup, 440-450 cfm, works well so far, used it for a couple of brews.

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Old 01-06-2011, 02:26 AM   #7
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Here is what I am thinking of doing. Again based on what I have seen at theelectricbrewery.com. I am going to use the styrofoam insulation to build a hood, I will probably reinforce it some how with plywood. Then I will cover it with the plastic shower board. this seems to be a lot cheaper than buying a hood and easier than building something out of metal on my own. It will be easy to clean and shouldn't weigh to much. I got a high output fan and will buid 6" duct work to vent from the hood out the side of my wall in the brewery.

Can't drop down $500 - $1000 on a hood, I think I can build this for around $100, plus I have some material lying around.

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Old 01-06-2011, 02:53 AM   #8
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I think what I may do is similar. I looked over things in my area too and think it may be worth a shot to make a small vent hood out of plywood and then put a few coats of polyurethane on it to help prevent against continued steam penetration. Since there is no more than 12" from the window to the hood I think I may go with an inline fan like this one:

http://www.plantlightinghydroponics....an-p-2755.html

I think it should be more than enough power to carry that distance I think and hopefully won't have a lot of moisture buildup since it's such a short distance.

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Old 01-06-2011, 03:21 AM   #9
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you might want more than 165 cfm look for something more in the 300 would be my suggestion.

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Old 01-06-2011, 03:21 AM   #10
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the plywood and polyurathene should work fine i think

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