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Old 01-30-2009, 02:46 PM   #1
planenut
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Default stirrer fro electric HLT

I have a 10 gallon round cooler and ordered a ranco controller and a 2000w 120vac element.

I know I need some way to stir the water. I like Pols stirrer but it will cost almost $100.00.

I'm thinking of trying a simple aquarium pump and stone.
1. Do you think it will move the water enough?
2. Is there a problem with the HLT having aerated water?



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Old 01-30-2009, 03:07 PM   #2
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Aquarium pump sounds good but I would forget the stone. I think it would move enough water. I don't think you have to worry about aerating the water. You might be able to hook it to your ball valve output also to make it look cleaner.

You do have one problem though. A 2000 watt element requires 16.7 amps and the ranco is only rated to 15 amps. The best you can really do with the ranco is the 1650 watt elements that some places have... unless I'm mistaken which I hope I am because I'm planning on doing the same thing.

I'm planning on doing something similar so I will be watching this thread for sure. Electric HLT with sight glass is number one on my list of wants/needs... oh, and a barley crusher.



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Old 01-30-2009, 03:08 PM   #3
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Yeah, the Ranco or JC wont do you any good on a 2000W element. You will need a PID and SSR

No need for a stone in the HLT... aeration of that water is not an issue.

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Old 01-30-2009, 04:38 PM   #4
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Crap... didn't realize about the amps on the 2000W heating element.. Oh well, Guess I'll order a 1500W element...

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Old 01-30-2009, 05:13 PM   #5
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I use a simple submersible pond pump...it moves enough water to keep an even temp distribution....

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Old 01-30-2009, 05:14 PM   #6
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I used to just put my arm in there and mix it....

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Old 01-30-2009, 05:22 PM   #7
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Do you really get a lot of temp stratification? I was doing a few tests with my 5500W element in the HLT and I could see the bubbles rise off the element and up to the top, then move out to the side, looking like it circulates due to the temp differences. Could this be because I can pump much more heat in with the bigger element?

I will take a thermometer to it tonight to see if I have temp gradients.

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Old 01-30-2009, 05:27 PM   #8
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I can attest to thier being A LOT of temp stratification with a 5500W element in a kettle... I have measured mine, there is A LOT when you are not boiling.

You will need a way to mix the water, especially if you end up with e HERMS coil in there sucknig heat out.

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Old 01-30-2009, 06:21 PM   #9
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I plan on a herms down the road a bit... One step at a time.

I don't know about a submersible pump and being food grade.. 180 degree water and all that. I figured an aquarium air pump and some silicone tubing is safe.

I just ordered a 1650W element. They are only $5.00, it is the $8.00 shipping that kills my soul.

Just out of curiosity, what would have happened with the 2000W and the Ranco? Would it fry the Ranco, trip a circuit breaker or what? I assume the Johnson A419 is also 15amps. I'm not ready to tackle a PID, SSR and all that stuff yet.

And for my math lesson, 120V x 15amps = 1800 Watts? so 1650 is good........

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Old 01-30-2009, 07:01 PM   #10
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a submersible pond pump inside your HLT?

I use one of my two march pumps and take hlt water out the spigot and return in through the lid to a T that splits the flow and has angled elbows on the end that make a slow rotation, so I get bottom-to-top changeover and the rotation. It might be cheaper to run a stir setup, maybe eventually I'll add one if I get electrified and I can put in some power outlets controlled by switches in a control panel. That would be kinda cool!



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