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How to convert a chest freezer
into a homebrew kegerator
Beer dispensers have been made from just about all
types of refrigerators and freezers over the years. Chest freezers work
especially well, particularly when you consider the low cost of some
freezers. A beer kegerator made from a chest freezer should give you many years of trouble free service. This is a step by step guide to build a kegerator for
homebrew beer or soda. A kegerator is a great home project that can be
completed in just a few hours.
Although these instructions were written for homebrew
beer kegerator and Cornelius kegs, the exact same conversion will work draft beer kegs,
just be careful when lowering the kegs into the freezer because they can be
very heavy. The only difference between
this conversion and a draft beer conversion is that a kegerator conversion for draft kegs will use keg
couplers instead of the soda type disconnects shown in the pictures.
Here's what you need to look for when shopping for a
chest freezer:
The freezer needs to be large enough to hold the
number of kegs you want to dispense from and the dimensions can be
deceiving. The easiest way to measure chest freezers is to cut out a set
of cardboard disks the size of your kegs and then to lay them in the
floor of the kegs you are looking at.
The inside needs to be at least 25.5" high. A shorter chest freezer
will work but you will need to build a wooden collar to lift the lid up
a little.
Parts List:
2 tap beer towers with attached beer lines
Ball lock liquid disconnects
New or used 5 gallon Cornelius (soda) kegs - will also work with 3 gallon Cornelius (soda) kegs
Ball lock gas disconnects
¼” ID CO2 line
Stainless steel 1/4” tee or CO2 manifold or multi-pressure secondary CO2
regulator set
Oetiker or screw type clamps
CO2 regulator
5 or 20 pound CO2 tank
Chest freezer refrigerator (less than $200.00
for a smaller one, if you shop around)
Conversion Instructions:
These photos are of a friend's conversion in Mobile, AL.

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These instructions will guide you
through converting a chest freezer a completely self contained
kegerator for homebrew beer.
Here's a picture of the "victim"
before the conversion. |

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Before starting your conversion, verify that the freezer is deep enough
for your kegs. This one is fine, with enough room for the kegs and
enough room to place a 5# CO2 tank on the compressor shelf. If the
freezer is not deep enough then you will need to remove the lid, build a
collar out of 2X4's or 2X6's and then mount the lid into the collar. |

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All modern freezers will have a compressor shelf. This one is all the
way across one side but some are just in the corner. The compressor
shelf will take up quite a lot of space in some freezers and you need to
consider the shelf when choosing your freezer. It's much better to
measure chest freezers at the store with a set of cardboard disks that
you cut out to the size of your kegs. You can just lay the disks on the
freezer floor and you'll know right away if it's big enough for your
needs. |

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Start your conversion by deciding where you want to place the beer tower
or beer towers. KC decided to install three beer towers.
Notice the small grey box in the top, left corner? It's a Ranco
controller. Ranco controllers are used to over-ride the freezer's
internal thermostat so that you have cold beer instead of frozen beer.
You can find my temperature controllers
here. |

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KC used the actual base gaskets as guides. |

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KC also planned to use Polar Pitchers serve his beer, plus he found some
low cost trays that a local discount store will make great drip trays.
He adjusted the base gaskets a little foreword so that the trays he
found would sit right at the front edge of the freezer lid. This is just
his personal preference - the towers could have been installed dead
center or towards the rear of the freezer lid. Once you are happy with
the alignment, drill the center holes. |

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KC decided to use a hole punch to cut the holes in the door. This is the
cleanest way to cut the holes but you can also use a hole saw or drill a
series of small holes if you don't have or can't find a hole punch.
This is a picture of all of the hole punch parts laying beside one of
the center holes he drilled earlier.
Hole punches are available from your electrical supply place and are
available in a variety of sizes. |

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The hole punch comes in three parts, the bottom (punch, the top (die)
and the screw. You assemble the punch by dropping the screw through the
die, dropping the set through the hole, then threading the punch onto
the end of the screw Once everything is assembled, you just tighten
the screw and let the die do the hard work. |

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This is a good picture of the die being drawn in from the bottom. |

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Once the steel has been cut all the way through, the entire hole punch
just pops out leaving a nice clean round hole. Then you just unscrew
the die set, pry out the metal plug and start over with the next one. |

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Beer towers come with very long mounting screws, intended to be mounted
through a wooden bar. KC decided to replace his with shorter mounting
screws - you'll see why later. |

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The only problem with converting a chest freezer into a kegerator is
that the steel is thin and does not have a lot of strength. Because of
this, you need to reinforce the lid. KC chose a set of fender washers
and he has them placed here to make sure that they don't get in the way
of the center hole. |

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KC used the fender washers and the shorter screws to mount the beer
towers and he had to cut away some of the plastic liner to be able to
place the fender washers directly against the inside surface of the
freezer lid.. This is a picture of one installed, with three to go.
You can also place a short piece of 1X6 shelving on the inside with a
large hole drilled in the center & 4 matching mounting holes drilled
around the large hole. Then you can mount the towers with the original
hardware, sandwiching the freezer lid between the beer tower and the
piece of 2X6. |

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Here's a picture of the complete kegerator. The unique looking beer
faucets are stainless steel Perlick Foreword Sealing Faucets. |

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Here's a great picture of the inside of the finished kegerator. Notice
that the beer lines (the clear lines) look very long. Beer towers come
standard with 5' beer lines and they need to be kept at this length to
help control foaming. |

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And another great picture from the front. KC chose to use a 2 pressure
regulator (left side) so that he can run two different pressures. The
two bars in the back with small red handles are a 2 port and a 4 port
CO2 manifold. One regulator output runs to each manifold then a line
runs from each manifold to a keg.
He has the ability to run 2 different pressures with this system and
can apply one pressure to 4 kegs and the other pressure to 2 kegs.
A 2 pressure regulator really comes in handy for fast carbonating a
keg while still serving from others or for setting unique pressures for
more carbonated beers like a wheat. |
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