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Old 10-01-2010, 03:51 AM   #21
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I noticed that a lot of people bend their HERMS coils to a single diameter and it usually takes up quite a vertical in the HLT. What about leaving it in more of a concentric like copper tubing is shipped? Maybe just two flat coils like that sitting lower in the HLT so you only have to fill to 4 gallons for recirculation. I suppose the challenge is that you still have to add more water for 10 gallon batches and you'll have to stop circulating while the HLT temp recovers.
That sounds like a pro/con: The amount of water needed to cover the coil in the HLT. Or am I misunderstanding it?

I also thought that if I did go RIMS, I would have to add a mini boiler sight glass or something to ensure I saw flow at any given time, the thought of a stuck sparge and potential impact seems like a concern.

And if RIMS, a threaded plug to drain the water out of the unit at the end of brew day. Not sure if I am just being anal, but it seems like this might be a good idea, not for the coil as much as for general cleanliness. On the other hand--with correct mounting design---a hex would be filled with nothing but air at the end of brew day.
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Old 10-01-2010, 04:59 AM   #22
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I have been in the planning stages of my new brew rig for a while and one of the biggest reasons I've been leaning toward HERMS is it will require less elements. If I go all electric... I need an element in the BK and one on the HLT with HERMS. If I go RIMS, I need one in the BK, one in the HLT and also one in the RIMS tube. (unless I'm missing something) I don't need to step mash and I can still mash out in 15 min or so.

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Old 10-01-2010, 01:09 PM   #23
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Originally Posted by Bobby_M View Post
I noticed that a lot of people bend their HERMS coils to a single diameter and it usually takes up quite a vertical in the HLT. What about leaving it in more of a concentric like copper tubing is shipped? Maybe just two flat coils like that sitting lower in the HLT so you only have to fill to 4 gallons for recirculation. I suppose the challenge is that you still have to add more water for 10 gallon batches and you'll have to stop circulating while the HLT temp recovers.
I built a "Pol" clone for my HERMS system so the depth of water in the HLT is influenced by the height of the heating element installed vertically through the bottom. I have considered rebuilding to orient the element on the horizontal.
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Old 10-02-2010, 05:28 AM   #24
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I just did a complete overhaul/rebuild of my operation:

http://www.homebrewtalk.com/f11/its-...morrow-198694/

I decided to go HERMS soley because of the scorch wort risk and my inability to do anything with electrical other than lighting myself up (mans gotta know his limits)...so building a PID was out of the question.

ALthough I do like the RIMS approach as well...

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Old 10-02-2010, 02:22 PM   #25
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Is 25x1/2" the common path to take for building a HERMS?
I had seen somewhere that someone had used rigid 1/2" tubing, has anyone tried it before?
Any close ups of their HERMS connections and returns? (simple parts list)

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Old 10-02-2010, 03:00 PM   #26
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Is 25x1/2" the common path to take for building a HERMS?
I had seen somewhere that someone had used rigid 1/2" tubing, has anyone tried it before?
Any close ups of their HERMS connections and returns? (simple parts list)
There are quite a few places on the forum where guys have posted up their HEX coils repleat with connections/returns...simple search would yeild a lot of information- it did for me!
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Old 10-02-2010, 03:06 PM   #27
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I am so glad this is being done. I am still up in the air between RIMS and steam injection, so reading more and more review information on the RIMS vs. HERMS will help.

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Old 10-02-2010, 06:43 PM   #28
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I HERMS so no input on a RiMS, 20ft 1/2 copper and both fired and 1500watt 220v elemt. controlled by a Johnson A419, probe in the mash tun return,
I strike in a round 149 to 151 and can hit 153 or 154 in less than 20 mins. the 1500watt can hold what ever for over an hour in a 50L HLT. w/ 13gal water constant recirculating with a Little Giant md2-sc pump

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all copper silver Brazed permanent mounted, I flow top down cleans easy and completely drains

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Old 10-02-2010, 08:41 PM   #29
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all copper silver Brazed permanent mounted, I flow top down cleans easy and completely drains
Do you recirculate top down too? I go bottom up because I was worried about trapping air although I'm not sure if it would or not.
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Old 10-04-2010, 01:24 PM   #30
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Thanks Bobby for starting this thread. Right now I'm a traditional three tier brewer, but I have been kicking around the idea of going with either a RIMS or HERMS in the next year.
This is helping a lot with my planning.

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