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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > Cheap, Easy Fermentation Chamber for $30
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Old 09-30-2010, 10:33 PM   #1
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Default Cheap, Easy Fermentation Chamber for $30

I put a teaser in my sig about this, and I got a lot of messages about it. I promised a thread on how to do it, and now I've finally gotten around to it. Sorry for the delay.

Want to know how you can make an accurate fermentation chamber for cheap in less than an hour? This chamber works with a wall AC unit and temperature controller, which I obviously haven't included in the cost.

Materials:
Three 4x8 pieces of pink foam insulation board
A garbage bag
A cardboard box
Duct Tape
A hack saw

1) When buying the insulation at the hardware store, have an employee cut each piece in half, so you have six 4x4 pieces.

2) Take your cardboard box, cut the flaps off, and set it so it's flush with the edge of one piece of board. Trace it, and then use the hacksaw to cut out the tracing. You can also use a razor blade, or both, like I did, which I think is easiest.

3) Place the box in the newly created hole, and secure it in place with tape. This is the air intake.





4) Make a four-sided cube with the pieces of insulation, and seal with duct tape. Don't worry about everything being super air-tight, its not really necessary. I used cheap duct tape that does not provide a great seal, but will be easy to peel off so I can disassemble this thing when I move out in 3 months.



5) Cut off one end of your garbage bag. Wrap one end around your AC and the other around the cardboard box air intake of your cube. Tape in place.



6) Set up your temperature controller. Fill your cube with beer, set your temp, and close the cube off with a piece of board. You can tape it in place.




Even though mine is far from air-tight, it doesn't really matter. Here she is holding steady at 66 after hour of being switched off.

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Old 10-01-2010, 01:46 AM   #2
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Stylish. Is that in an extra bedroom?

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Old 10-01-2010, 02:18 AM   #3
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Stylish. Is that in an extra bedroom?
No, just a wing of my apartment where I kept all my brewing stuff. Now all my brewing stuff goes inside the cube, so it works out perfectly.

I know it's not the most aesthetically pleasing thing (kind of looks like a gay Kaaba) but it gets the job done.
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Old 10-01-2010, 02:38 AM   #4
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Where did you get a window unit and a A419 for less than $30?

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Old 10-01-2010, 03:04 AM   #5
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Originally Posted by Conroe View Post
Where did you get a window unit and a A419 for less than $30?
I was thinking the same thing, heh. It's sorta like saying "Buy a car for $500, but the engine and electrical system are extra"
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Old 10-01-2010, 03:33 AM   #6
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Quote:
Originally Posted by Conroe View Post
Where did you get a window unit and a A419 for less than $30?
Thank you for askin that question Id love to hear that answer.

Now here is my question where on gods green earth did you find (3) 48x96 foam panels for 30 bucks?????????? With my discount I paid 28.56 a panel mine are R12 they do cost a wee bit more than R10.
Please introduce me to your people. I need prices like that.
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Old 10-01-2010, 03:35 AM   #7
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Quote:
Originally Posted by rexbanner View Post
Want to know how you can make an accurate fermentation chamber for cheap in less than an hour? This chamber works with a wall AC unit and temperature controller, which I obviously haven't included in the cost.
Quoted from the OP for those that missed it.
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Old 10-01-2010, 04:17 AM   #8
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Quoted from the OP for those that missed it.
Thanks. I didn't include it in the cost because 1) Every accurate ferm chamber needs a temp controller and 2) there's a good chance you have access to a wall AC unit, especially during the winter. If it's cold outside, you can use just a fan.

Also, keep in mind that this thing can hold a LOT of carboys. I haven't measured it, but I think it would probably fit at least nine.
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Old 10-01-2010, 04:18 AM   #9
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Quote:
Originally Posted by dogtailale View Post
Thank you for askin that question Id love to hear that answer.

Now here is my question where on gods green earth did you find (3) 48x96 foam panels for 30 bucks?????????? With my discount I paid 28.56 a panel mine are R12 they do cost a wee bit more than R10.
Please introduce me to your people. I need prices like that.
I got them at Home Depot. It was actually less than 30. I'm sure the ones I got are probably not as good, but they work.
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Old 10-21-2010, 11:12 PM   #10
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I like this.. pretty good use of space!

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