Blacktailchaser-
I used to use an old refrigerator to age my deer, and got tired of having a refrig sitting unused for 10 months out of the year.
Not to mention the maintenance, whether scheduled or not.
Saw a you tube video a few years back that explained how to age meat in a cooler (Yeti type) with ice.
I use an 85 qt. Cordova (should really be a super cooler to reduce ice usage) which will easily hold a large whitetail, with all meat de boned.
I start the process usually the day after the kill to let the carcass drain a little. it is also easier to skin the deer as soon as you can.
Leave the meat in bigger portions, just clean off as much fat and sinew as you can.
Put 4"-6" of ice in the bottom first, spread out all the meat on the ice, you can stack the different cuts on top of each other if necessary.
Add additional ice on top of the meat to fill the remaining space to fill the cooler.
The entire time the meat is in the cooler ( I age for 14 days) you should drain the melted water once or twice a day.
Depending upon the temperature the cooler is exposed to, will determine the additional ice you will need to replenish the melted ice.
The theory is that the meat is at a constant aging temp. which will control the aging process.
I have a friend that ages for 21 days, and the meat is great, I don't notice any difference between 14 and 21 days.
Another nice aspect is that you can package at your leisure, I usually take a day or two to finish the vacuum packaging, (another process I highly recommend) after work at night.
I used to let the deer hang in my garage and angst over the daily temps and when to finish butcher.
This method is very controlled and no worries about outside temps.