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Home Brew Forums > Home Brewing Beer > DIY Projects > Keezer Thermal Monitor
 
 
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Old 12-30-2012, 12:34 AM   #11
tealio
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Here's a pic

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Old 12-30-2012, 12:35 AM   #12
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Crap my copy paste skills didn't work so well...

http://www.homebrewtalk.com/f51/anot...ck-out-360535/

Here's the build with the pics.

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Old 12-30-2012, 04:58 PM   #13
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Stupid question, why would I need a thermowell?

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Old 12-30-2012, 08:55 PM   #14
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Quote:
Originally Posted by hank1105
Stupid question, why would I need a thermowell?
You'll get the best reading of the internal temp by submerging the probe in water (not as prone to temp swings). Depending on the style of the temp probe, it may not be able to be submerged. A thermowell allows you to surround the probe with water without actually being submerged.
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Old 12-30-2012, 10:36 PM   #15
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I've been wondering if wrapping some sort of latex glove around the probe, then submersed in your liquid jug or whateer, would be a good cheap way of not having to use a thermowell. So -- a condom or a cut up kitchen glove might work? Seems like it could be a more accurate reading than a metal thermowell too.

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Old 12-31-2012, 06:06 AM   #16
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Quote:
Originally Posted by inamays View Post
I've been wondering if wrapping some sort of latex glove around the probe, then submersed in your liquid jug or whateer, would be a good cheap way of not having to use a thermowell. So -- a condom or a cut up kitchen glove might work? Seems like it could be a more accurate reading than a metal thermowell too.
No...just no.
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Old 01-14-2013, 03:19 AM   #17
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Quote:
Originally Posted by FuzzeWuzze

No...just no.
Yes...just yes.

http://youtu.be/wKcYKueJdKQ
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Old 01-14-2013, 06:49 PM   #18
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For the power cord can I just cut a old computer power cord and use that?

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Old 01-20-2013, 07:45 AM   #19
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I just have my probe submerged in a gallon of water... Is this a no-no? I haven't had any issues yet but its only been a few weeks

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Old 01-20-2013, 07:51 PM   #20
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I sat a five gallon plastic cube on top of the compressor hump in my keezer to add thermal mass. I also secured the probe from the controller to the side of the plastic cube. I taped the probe to a 6 inch square of the reflex bubble insulation and then secured the insulation / temp probe sandwich to the cube with bungee cords.

About a week ago, I used my digital thermometer and checked the temp of two different kegs and the water in the cube. They were with in 0.5F of each other, with the cube being the coolest. The measurement of the cube was with in 0.2F of the setpoint. I run the keezer at 42F +- 2F with a single stage Johnson controller.

For a keezer, I think that taping the probe to the side of a container is fine... as long as you always have liquid at the level of the probe. I would believe in a fermentation chamber that using a thermowell might produce a better measurement, but from what I've read and heard in podcasts the temp delta is only a degree or two.

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