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Old 03-10-2008, 09:13 PM   #1
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Default Thermal Water Stirrer

Hey guys, yes another drawing. I don't know why I draw so much but it helps me to say more than I can with words. Wondering this time if something like this would work.


It seems like a good enough idea. I am just hating trying to find a small stirrer for my HLT. Is this right in theory? Water should move shouldn't it? I am not expecting a lot of movement, just circular currents to help with heating.

Let the ridicule commence, LOL.

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Old 03-10-2008, 10:33 PM   #2
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In theory, it should work. Have you seen the write up about a Planispiral Immersion chiller? It works with the same principle, and it gets the wort moving. So, I don't know why your design wouldn't work.


John

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Old 03-10-2008, 10:44 PM   #3
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Awesome, I need to check out what you are talking about.

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Old 03-12-2008, 05:13 PM   #4
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Most water heating elements cannot be run in a vertical position - they will burn out. You need to find one that is rated for dry-firing to be able to do this... I think McMaster has them, and even some hardware stores.

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Old 03-12-2008, 05:15 PM   #5
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I'm sure he knows this and won't run it dry. You could probably get away with bending the element some more so it doesn't stick up as high, but then you'd be interfering with your smokestack project.

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Old 03-12-2008, 05:17 PM   #6
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I don't think you need a stirrer for an HLT.

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Old 03-12-2008, 09:02 PM   #7
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A stirrer is just for better heating efficiency. It would work without one, but I want it to be as good as it can be. Without a stirrer, you are relying on thermals. With a stirrer you are directing your thermals, and also preventing as much of a thermal barrier on your heating element.

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Old 03-13-2008, 09:06 AM   #8
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It's not going to make much difference. Once the water begins to heat, you are going to get significant agitation from temperature difference. If you really want to work on efficiency, insulating the HLT is the way to go.

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Old 03-13-2008, 03:05 PM   #9
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I would say the easiest thing to do is fill it with water and fire it up. Put your thermo in various places and see just how big of a temp gradient you get. Don't fix a problem until you have one.

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Old 03-13-2008, 04:45 PM   #10
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Default Houston, we have insulation!

Quote:
Originally Posted by mr x
It's not going to make much difference. Once the water begins to heat, you are going to get significant agitation from temperature difference. If you really want to work on efficiency, insulating the HLT is the way to go.
Yep, already done

Three layers each of Reflectix Insulation followed by two separate coatings of Line-X bed liner. Very nicely insulated I might add .

Check out the full project here!
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