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Old 05-20-2010, 02:23 AM   #1
Jan 2010
St. Louis
Posts: 10

Hey guys,

I am converting a mini fridge to a kegerator in the near future. I have seen a couple of ways to keep your beer lines cool as they enter the tower. Some have drilled two small holes and ran copper pipe to the tower, some one large hole with copper pipes, and some with a large hole and an electric fan to cool the tower. Anyone with experience in any of these methods? If you did run a fan, how did you wire/connect it? I am not planning on drilling a hole besides for the tower, as I am keeping my CO2 tank inside the fridge.

Thanks in advance!

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Old 05-27-2010, 02:31 AM   #2
Aug 2008
Warren County,NJ
Posts: 542
Liked 7 Times on 6 Posts

1/2" copper with your lines run through it should be plenty for keeping beer cold. just leave about 2" of the copper hanging into the fridge so that short part gets nice exposure to the "fridge" temps I use this method and it works great! unless your keg is in 90 degree heat it should be fine its only a foot of line thats not in the fridge.... hope this helps.
Final Gravity Podcast

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Old 05-27-2010, 04:22 AM   #3
thedude00's Avatar
Apr 2010
Staten Island, New York
Posts: 431
Liked 4 Times on 4 Posts

Bro check this out it should help you out
Pour Standards a Staten Island, NY homebrew club
Pour Standards

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Old 05-27-2010, 04:43 AM   #4
kegtoe's Avatar
Sep 2009
Stevens Point, Wisconsin
Posts: 1,200
Liked 18 Times on 17 Posts

personally, i wouldnt worry about it. check out my coffin - i dont cool my tower and get good pors

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Old 11-10-2015, 05:02 AM   #5
Nov 2015
Posts: 1

Has anyone thought of pairing 2 copper pipes?
The First to run the beer line thru and the Second jointed to the first, only adding a cooling agent inside and sealing it (following the other pipe).

thinking of maybe the stuff inside an Ice pack? which will transfer the cold to the pipe that has the beer line running thru it ?

Which in mind, means a colder transfer???

I am putting together a kegger from an old small fridge and I have been thinking of what options there are. I prefer to not have any other holes as stated above.... but still need to cool the tower.

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Old 11-10-2015, 02:31 PM   #6
May 2014
El Quisco, Chile
Posts: 38
Liked 3 Times on 2 Posts


Reason: posted in wrong thread. sorry bout that.

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Old 11-15-2015, 04:54 PM   #7
Sep 2011
San Diego, CA
Posts: 686
Liked 95 Times on 80 Posts

My kegerator has one large hole for the tower. I run 3 beer lines up it. I started with copper pipe that came down a couple of inches with a tee and a other piece of copper extending back to touch the cold plate in the fridge. Didn't help at all with foamy pours. I switched to a fan blowing cold air up the tower and that works much better. The temperature in the tower is now only 5F higher than the temp of the air in the fridge.

My advice is to not waste your time with the copper pipes and go straight for the fan.

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Old 11-15-2015, 05:15 PM   #8
May 2011
Stow, MA
Posts: 18,931
Liked 3388 Times on 2523 Posts

I also went with an active cooler for my tower and it works pretty well.
This time of the year the differential from inside the keezer to inside the tower is about 4 degrees, but looking at mid-July captures it ranges as high as ~8F in the heat of summer.

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Definitely need good insulation inside the tower though, otherwise it'll sweat like crazy during the dog days of August here...


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