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Old 06-08-2011, 07:46 PM   #11
Walker
I use secondaries. :p
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yup. That would probably do it. You might have to tweak the PWM circuit a little to get a more reasonable frequency on it if it's unsuitable as-is, but that would be as simple as probably just swapping out one of the capacitors on the board.

You will also want a switch in there so that you can manually shut the element off, but you should be able to get such a switch at the hardware store for (guessing) $5.
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Old 06-08-2011, 07:59 PM   #12
seabass07
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I need to do this for my heat stick. The full 2k watts splashes wort like crazy while boiling 7.5 gallons. Thanks for the info Walker.

 
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Old 06-08-2011, 08:00 PM   #13
Walker
I use secondaries. :p
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this one has heatsinks and a status LED on it.
just poking around ebay now...

http://cgi.ebay.com/DC-12V-24V-3A-Mo...item3a66ceb7ce
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Old 06-08-2011, 08:00 PM   #14
Walker
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Quote:
Originally Posted by seabass07 View Post
I need to do this for my heat stick. The full 2k watts splashes wort like crazy while boiling 7.5 gallons. Thanks for the info Walker.
Really? 2kW and a violent 7.5 gallon boil? That's pretty impressive, actually.
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Old 06-08-2011, 08:19 PM   #15
seabass07
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I have a wide/shallow kettle, so it tends to splash a lot since all of the heat is coming from a concentrated area. Using the stove burner on hi can barely maintain a boil. I need something in between. It's crazy that a 3500 watt stove burner is so much less efficient than a 2000 watt submerged element.

 
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Old 06-08-2011, 08:23 PM   #16
MikeinCT
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Do either of you guys recommend a 25A ssr and 2KW heater. I am getting interested enough to order some parts. I already have the 10 gallon brew pot and frankly it is a bit much for my stove.

I like the idea of continous (albeit manual) solid state control.

 
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Old 06-09-2011, 03:04 AM   #17
AdamCanFly
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So Walker, if I were to buy that PWM with the status LED on it, I could use it to control a 5500w element?

 
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Old 06-09-2011, 03:29 AM   #18
Walker
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Quote:
Originally Posted by AdamCanFly
So Walker, if I were to buy that PWM with the status LED on it, I could use it to control a 5500w element?
You can control whatever you want with it. It just genrates a low voltage DC signal that you connect to an SSR. If the SSR is able to handle a 5500W element, you are good to go.
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Old 06-09-2011, 03:42 AM   #19
AdamCanFly
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Do you know what size SSR would be best to use? I'm looking at http://www.auberins.com

 
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Old 06-09-2011, 03:47 AM   #20
AdamCanFly
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Crap, maybe I should just stick with propane. The rabbit hole just keeps getting deeper.

 
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