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**Huaco** · 03-13-2012, 03:51 PM

Anybody ever done this? Does the rubber insulate well enough not to need any extra insulation?
I planed on making my MT out of a keg anyway, and have access to a rubber coated one. If you have done this, what kind of temps are you holding? I plan to use a HERMS coil built on the E-Brewery plans.

krazydave · 03-13-2012, 07:28 PM

I'd be interested to know some details on this also! I have one that I was planning on converting at some point as well. I've heard of people doing it, but never really read anything about how well they hold temps, etc.
I would imagine sticking on some insulation would help even more though, but I do like the cleaner look of no insulation.

tdogg · 04-19-2012, 03:37 AM

I'm also looking into building one of these. Subscribed.

**Huaco** · 04-19-2012, 01:15 PM

Decided to not go with the rubberized keg this time around. It would probably work, but I didn't want to mess with cutting through the rubber AND the Keg.

Boerderij_Kabouter · 04-19-2012, 01:20 PM

I have one, and it works very well. Not much to it.

tdogg · 04-20-2012, 12:59 PM

Quote:

Originally Posted by Boerderij_Kabouter

I have one, and it works very well. Not much to it.

pics?

**jimmayhugh** · 04-20-2012, 02:13 PM

Quote:

Originally Posted by tdogg

pics?

Here and here...

krazydave · 04-20-2012, 04:07 PM

Nice, thanks for the good write-up and pics!

So, quoting you here...
"OK, yesterday I filled the tun with about 13gal of 180 degree water, put a lid on top, and took temperature readings every 10 minutes for an hour and a half. The results were not good. Ambient temp was 68, with gusty winds. There was an almost linear 3 degree drop at every reading"

You didn't by chance test it with an actual mash before you wrapped it with reflectix, did you? Just curious since I know temps are more stable when there's a grainbed in there rather than water alone.

Also, have you tested it with water alone after you wrapped it to see if it's any more stable?

I like the tri-clover setup also, I've subscribed to your thread so I can continue to watch your progress and see how it performs with the FB and bottom drain configuration you're using.

I can say one thing, I didn't think that the rubber on these things was so thick! That looks like almost 3/4" of rubber on the bottom of that thing!

**jimmayhugh** · 04-20-2012, 04:55 PM

Haven't re-tested it yet, I'm in the process of building My Barney Brewstand, and am working on the RIMS and pump placement.

I'm sure that the increased thermal mass of a real mash will help mitigate some of the thermal drop, but I had planned on using reflectix in either case.

Just changed over to a 2" butterfly valve. Couldn't find a 2" TC x 1/2" or 3/4" hose barb, so until I can fabricate one, I have to use a threaded TC.

tdogg · 04-26-2012, 03:15 AM

Quote:

Originally Posted by jimmayhugh

Here and here...

Thanks! that wooden stand is almost EXACTLY what I had envisioned. I should have my hands on a rubber keg in the near future.