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View Full Version : Converting a Freezer to a Fridge or Kegerator


Quads
12-09-2009, 07:39 PM
Came across this little goodie and figured it would be useful here, as well for the kegerator peeps.

DIY: Eco-responsible super fridge
by Dave Freeman (http://www.crunchgear.com/author/dfreeman/) on August 17, 2009

http://perfectmancave.com/forum/attachment.php?attachmentid=17&stc=1&d=1260410693

One of the problems with modern society going “green” is that many of our appliances are inherently inefficient. Take for example the refrigerators and freezers that many of us use. A vertical fridge/freezer combination just isn’t that energy efficient, even if it is “energy star” rated. Most fridges waste upwards of 365 kWh a year. So what can be done?

So what’s a more effective alternative to your current fridge? Look no further then the basic chest freezer. Since cold air sinks, chest freezers have long been known to be a more efficient freezing solution, but what about refrigeration? Heaven knows you don’t want to freeze your tofu. One clever solution (http://mtbest.net/chest_fridge.html) is to replace the thermostat (http://mtbest.net/freezer-to-fridge-thermostat.html) with one designed to shut off the motor on the freezer, allowing you to better control the cooling without freezing your food unintentionally. Properly set up, you can less energy to cool your food for a day than a 100-watt incandescent bulb does in an hour. So no only will you help the environment, but you’ll save money too.

Even better than that with a little digging around, I came across this goodie:
Digital Temp. Controller (http://www.northernbrewer.com/brewing/brewing-equipment/fermenting-equipment/fermentation-temperature-control/johnson-controls-a419-digital-temp-controller.html) All the brain work is taken out of it. Plus this into your wall, plug the freezer into this, and poke the probe into the freezer. Turns the freezer on and off at the programmed temps (high / low) and bypasses the freezers thermostat all together.

Enjoy this, and the many other tid bits I bring you, while the forum is still free.

Bullfrog
12-10-2009, 09:28 AM
Enjoy this, and the many other tid bits I bring you, while the forum is still free.

hehe

Wedge Rock
12-10-2009, 10:11 AM
Only downside is that those chest freezers don't have the shelf-space for organization required of a typical fridge. Sure, it'd be great for a keg and/or canned beer/soda, but I can't see putting eggs, a couple of gallons of milk, tub of butter, left over pizza, etc. in there.

The stacking my wife does now already drives me crazy!

j p frog
12-10-2009, 11:00 AM
I would assume the insulation in a freezer would be better than in a refridgerator so it makes sense. I would guess that an upright freezer would have some savings, just not the amount that a chest freezer would. Interesting idea.

Quads
12-10-2009, 11:04 AM
Yes, ideally you'd do this with a stand-up version, unless you had a very specific need for a chest freezer. We bought a chest version at a garage sale for a smoking deal. (10 cents on the retail dollar for a 6 month old unit) and loved it for the first week or two. Once we get back from Costco after stocking it, I realized how much a pain in the ass a chest freezer is.

And yes, the insulation properties are much better on a freezer, thus making this full of win to buy / convert a freezer to a fridge. Specially for bars, hom(ie) brewers, etc.

Aust1227
12-16-2009, 08:32 AM
This is what I have used for my kegerator, and I think I have a full review of the Johnson Controller located in that page. The insulation value of the freezer is pretty darn good!

Scuba_Dave
12-16-2009, 08:58 AM
We bought a "commercial" no frills 11 cu ft freezer for about $150 at Lowes
It uses very little energy
We have to manually defrost it once a year

Blake
12-16-2009, 09:53 AM
This is what I have used for my kegerator, and I think I have a full review of the Johnson Controller located in that page. The insulation value of the freezer is pretty darn good!

Slight thread jack, Aust is your freezer wide enough to hold a keg or pony keg? I'm thinking of doing one of these but need it to fit pony kegs for the occasional family gather when all they drink is "miller light"