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Old 04-26-2010, 03:51 PM   #1
BigBlueBrad
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Default What size Co2 tank for four tap kegerator?

I am working on building a four tap kegerator from an 8.8 cu. ft chest freezer. I have a 5 gal. C02 tank for my kegging. Is that big enough to push all four (three most times), or do I need to get a bigger one?

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Old 04-26-2010, 03:52 PM   #2
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5lb should be fine. That's what I have on my 4 tap system. Good luck!


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Old 04-26-2010, 03:58 PM   #3
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The 5 pound tank will work fine. If you find yourself running out of co2 more often than you like then you can get a larger tank later. We have a 15 pound tank that lasted about 10 months and pushed roughly 25 kegs of beer.
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Old 04-26-2010, 03:59 PM   #4
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It will push just fine. Of course, 4 taps means you are drinking more beer and will then have to refill more often. If you were setting up a system from scratch and had the room I would recommend a 20# tank but since you already have the 5# tank use it and if you feel you are getting refills more often than you'd like you can always upgrade.
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Old 04-26-2010, 04:39 PM   #5
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I run 7 taps off a 5#, but really only because there isn't room for a larger tank in the keezer. It still lasts a good long time, and I just keep a spare handy.
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Old 04-26-2010, 04:41 PM   #6
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Thanks everyone. I plan on running the gas line through the wood collar and keep my tank outside of the freezer. Any major pro's or con's to leaving it inside vs. outside?
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Old 04-26-2010, 06:05 PM   #7
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+1 to the spare tank. Even the big ones run out. With a back up you just switch and in the next week or so, at your leisure, refill the other tank.


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Originally Posted by Jester369 View Post
I run 7 taps off a 5#, but really only because there isn't room for a larger tank in the keezer. It still lasts a good long time, and I just keep a spare handy.
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Old 04-26-2010, 06:53 PM   #8
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This handy dandy chart will tell you how many kegs of beer you can dispense with one tank. If you force carb from the same tank obviously you will dispense less beer though.

http://www.micromatic.com/beer-quest...nk-aid-89.html
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Old 04-26-2010, 07:05 PM   #9
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Just to add my 2 cents, I have all three common sizes (5 (2 of these), 10 and 20 lb cylinders) but my current keezer only fits a 5er on the hump. It's a 9 cubic footer and therefore only fits 4 cornies. This setup works fine thus far but yeah it runs out fairly quick. If you can fit a 10 pounder, I'd say go with that.
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Old 04-26-2010, 07:11 PM   #10
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co2 is much cheaper by the lb when filling larger tanks, plus your time to get them filled.
5lb works fine, though.


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