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Old 12-26-2010, 03:51 PM   #1
bulldogxray's Avatar
Oct 2007
Posts: 142

Has anyone used a digital temp controller for a Rims system like a ranco or johnson? I was just wondering if it was a viable alternative.
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Old 12-26-2010, 05:04 PM   #2
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Nov 2008
Posts: 259
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You could, but a PID and a SS Relay would work much more gooder.

With the Ranco or Johnson you will be very likely to over shoot your temps.
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Old 12-26-2010, 05:09 PM   #3
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Dec 2007
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I use one (ranco) for my herms and it works fine. It's also dead on accurate according to my new therma pen.

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Old 12-26-2010, 05:45 PM   #4
Jan 2009
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Originally Posted by bulldogxray View Post
Has anyone used a digital temp controller for a Rims system like a ranco or johnson? I was just wondering if it was a viable alternative.
I use a Johnson digital A419 controller on my direct fired RIMS. Works like a charm. My system is sort of semi-automatic in that the burner is operated by the controller, but I manually adjust the pumping rate and flame height. With a little experience, it's easy to hit and maintain mash temps without overshooting the targets. I considered going the PID route at one time, but this controller works well, so I have not regrets in that dept. The controller is also the same one I use on my converted chest freezer. I just re-purpose it for several hours on brew day. Eventually, I plan to buy a second controller, but not in any hurry to do so. The temp of the serving freezer changes very little in the few hours that it's not running. I may buy a Love controller for the RIMS in lieu of the Johnson. Haven't decided one way or the other on that yet.

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