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Home Brew Forums > Home Brewing Beer > Electric Brewing > Re: Help! Installing Element
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Old 04-15-2012, 04:06 PM   #1
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Default Re: Help! Installing Element

Hey all,

I used a 1 1/4 Greenlee knockout punch on my kettle (15.5 gallon keg) to make the hole for my Camco 5500W element, per many instructions on this forum. However, the hole seems too large. It measures about 1 3/4 inches across. The element passes through the hole without even touching the sides. The one-inch nut barely catches any of the sides. Is this hole now too big? If so, how so with the Greenlee 1 1/4 punch? I have the Greenlee set: 1/2, 3/4, 1, 1 1/4, so I'm assuming I used the right "1 1/4" punch.

Any help?

Todd

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Old 04-15-2012, 04:17 PM   #2
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You must have used a conduit punch instead of a radial punch. You'll need to get a fitting welded on now.

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Old 04-15-2012, 04:24 PM   #3
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Or, instead of paying a welder:
http://www.homebrewtalk.com/f51/sold...-steel-155782/

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Old 04-15-2012, 04:30 PM   #4
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You used a knockout for installing conduit with an ID of 1.25. Therefore the OD is 1.75. I did the same thing. I'd take your kettle and lock nut to a welder. Have them weld the nut over the hole. Then you just screw the element onto the nut.

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Old 04-15-2012, 05:31 PM   #5
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DOH! measure twice cut once. What you wanted was a 1" knockout punch which would have made a 1-3/8" hole. Right now, I'd recommend grabbing a 1" welding spud. I have them for $6 and you can silver solder that thing on over the hole.

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Old 04-15-2012, 05:43 PM   #6
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Thanks for the help. So with the welding spud, what gets welded to what and where?

Also, so if I use the 1" punch that I have, it sounds like I'll get the size I need for the other kettle's element - right?

Thanks again,
Todd

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Old 04-15-2012, 05:47 PM   #7
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I think the 1-in punch should do the trick. You can always test with a pice of sheet metal to be sure though.

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Old 04-15-2012, 06:46 PM   #8
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The flange is soldered or welded to the outside of the pot. It's got a diameter bigger than 1-3/4. Just a word of caution, you can't do this with a ripple element if its mount too low.

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Old 04-15-2012, 11:42 PM   #9
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Electrical knock outs and hole saws are referenced by what size u are using. So that 1/2 knock out is actually 7/8. But its for a single "mc" "nm" etc connector. Which is considered a 1/2 connector.

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Old 04-16-2012, 12:45 AM   #10
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So what if I got two washers that are 2" OD and 1 1/4" ID, putting one on the outside wall of the key and one on the inside wall of the keg? I could then use the outlet box on the outside to provide resistance and then use the nut on the inside to tighten things up. Shouldn't that be water tight? I could always use silicone o-rings to help seal against the washers. Any thoughts?

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