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Home Brew Forums > Home Brewing Beer > DIY Projects > Another Fermentation Chamber Build
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Old 11-07-2012, 03:29 AM   #21
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Crane - good advice. I stole a small fan from my son that has a spring clamp mount. I'll just clamp it to a shelf on the fridge blowing out into the chamber.

I need to see how low it will go, but where I have it, ambient temp is about 50 F right now, so it wouldn't be a great test. Will try when it warms up. I do know that I can easily hold 20 C (68 F), so ale fermenting is definitely a go.

I need to brew...

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Old 11-07-2012, 03:31 AM   #22
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Quote:
Originally Posted by TBaGZ
Since you have the conical on a slide, you probably could have gotten away with the chamber being shorter... Looks great though! I need to get to work on one.
I could've made it just a little shorter, but I wanted to make sure I have enough room for a blow-off tube or airlock, so I left a little extra head space.
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Old 11-11-2012, 03:27 PM   #23
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After a couple days of testing, I added a fan inside to keep constant air circulation. I had a cheap A/C fan that has a spring-clip mount on it, which I just clamped to one of the shelves in the fridge, blowing out across the chamber.

Yesterday evening, I set the controller for 10 C, or 50 F, to see if I can hit lagering temps. This morning, the chamber is holding at 10 with an ambient temp of 70F.


image-881983739.jpg

I'll let it hold here today, then set it to about 3C to see if I can get it down to cold-crash temp.

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Old 11-11-2012, 06:34 PM   #24
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Wow this is awesome. How much did the total supplies run you if you don't mind sharing? I'm assuming this lives in a garage or someplace outside of your "living area"?

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Old 11-11-2012, 08:35 PM   #25
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Quote:
Originally Posted by mforsman
Wow this is awesome. How much did the total supplies run you if you don't mind sharing? I'm assuming this lives in a garage or someplace outside of your "living area"?
Thanks!

I honestly didn't keep track of cost, but my estimate is around $280. That includes the fridge, which I bought used, the controller, most of the wood and electrical materials. There was some wood, electrical and misc. stuff (caulk, glue, fasteners, etc.)that I had laying around that went into it.

I have a detached building in my backyard with a semi-finished loft upstairs. This is where it currently resides, along with my other brewing supplies.
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Old 11-13-2012, 11:10 AM   #26
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Well, I let it run for about a day and a half set at 4C. It looks like it's bottomed out at 7.2, or about 45 degrees F. Not as low as I'd like for cold crashing, but not too shabby.

Now, I need to brew something to give it some real work.

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Old 11-17-2012, 11:07 AM   #27
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Nice job! Have you tested the heating aspects of this yet? I'm looking to build a chamber soon and was wondering if a reptile heat light was enough.

Thanks,
Mike

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Old 11-17-2012, 02:17 PM   #28
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Here's what I'm using for heat. These emit almost zero UV light that would skunk beer, and are less than half the cost of the ceramic reptile heaters.


image-1566620022.jpg

During a recent cold spell, I was testing with the probe in my fermenter full of water. With an ambient temp around 50F, this easily maintained 70F.

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Old 11-17-2012, 03:56 PM   #29
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Quote:
Originally Posted by scottsr123
After a couple days of testing, I added a fan inside to keep constant air circulation. I had a cheap A/C fan that has a spring-clip mount on it, which I just clamped to one of the shelves in the fridge, blowing out across the chamber.

Yesterday evening, I set the controller for 10 C, or 50 F, to see if I can hit lagering temps. This morning, the chamber is holding at 10 with an ambient temp of 70F.

I'll let it hold here today, then set it to about 3C to see if I can get it down to cold-crash temp.


What are your thoughts on that controller? I saw it was listed on homebrewfinds.com at a price of $20. That's an insanely good deal for a dual stage controller that made me think perhaps its too good to be true...thoughts?
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Old 11-17-2012, 04:26 PM   #30
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http://www.homebrewtalk.com/f51/ebay...-build-163849/

Most rave about them. I just got one on the way a couple days ago.
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