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Walts Malt
Joined: 27 Sep 2013 Posts: 119 Location: Farmington, MN
Drinking: Two Hearted Clone
Working on: Planning my Fall Brewing Schedule
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Link Posted: Mon Jan 19, 2015 2:51 pm Post subject: Aluminum Exhaust Hood |
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I wanted to go the route of the exhaust hood from Fast Kitchen Hood (like Kal's) for the "blingy" effect and known effectiveness. However, when I got a quote for almost $1,300 I began to think of alternatives. When I told my brother and his friend my dilemma, his friend said he could build one out of aluminum for me (works in a machine shop). Sounds like he can make it the size I need, with a channel to drain, and keep the cost pretty reasonable.
Any thing I should be concerned about in using Aluminum? Do you have a suggested minimum wall thickness for the aluminum?
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Castermmt
Joined: 03 Jan 2011 Posts: 863 Location: Lowell, In
Drinking: Steelhead Porter, Alt-Toids, Hefty-Weizen, Terry's Kolsch, African Amber, Pumpkin Ale, Double Dog Ale
Working on: Janet's Brown Ale, Terry's Kolsch, Pilsner
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Walts Malt
Joined: 27 Sep 2013 Posts: 119 Location: Farmington, MN
Drinking: Two Hearted Clone
Working on: Planning my Fall Brewing Schedule
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Link Posted: Mon Jan 19, 2015 3:51 pm Post subject: |
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That's what I sort of figured. Just wanted to make sure there wasn't anything I was missing in relation to aluminum corroding.
Yeah, plan to hook him up with something as soon as the brewery is ready.
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J-Brosky
Joined: 14 Aug 2013 Posts: 8
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Link Posted: Tue Jan 20, 2015 6:56 am Post subject: |
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If you see there is a lot of condensation forming on the inside surface you will eventually get some pitting of the aluminum, and a white corrosion product (oxide) will form given enough time. I would recommend applying a primer and enamel to the inside surface if you are at all concerned. Do you know what type of alloys your friend can get? Not all alloys are created equal. Different alloys and tempers will have different corrosion resistance properties.
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