I am in the process of purchasing a new home, and I have already begun my RIMS system build to be able to produce qty's of beer. My wife and I are pretty excited to buy a house with a good size basement where we can build a full bar / entertainment room. A big part of this build to me is going to be a walk-in cooler. I have wanted one since I was 18, and now I finally have the means and space to construct one. I priced out purchasing an 8'x8' but it was upwards of $4,000.
I decided that I should google "DIY walk-in cooler" and to my surprise HBT was the first link that came up. Specifically John Beere's build
. Now that I have read all of that, and all of the other subsequent builds similar to it, I feel that I have a great starting point to work from.
Here is what I have thus far:
- I will be getting my hands on a 10,000 BTU Air Conditioner to use.
- The room will be framed with 2x6 pressure treated wood, and will have a floor built the same (maybe 2x4 on the floor... not sure)
- I live in Buffalo NY where it gets very cold in the winter, so I prototyped, built, and tested a control panel that allows two temp controllers to measure the cooler temperature and the outside temperature. It determines if the cooler needs to be cooled, and if so it will determine if the temperature outside is sufficient to directly pull filtered air, or if it needs to use the AC unit to achieve the desired temperature.
- I have decided that I do not want just a cooler, but also a freezer built inside the cooler.
- I want the total interior space to be 8'x8' or 7'x7' I will have to look at the space that I have available after we settle on a specific property.
Ok, enough blah blah blah background, here are the questions:
If I place a freezer inside the cooler, I will obviously want the AC to be inside of that space. Should I just place a baffled fan on the freezer wall to blow freezer air into the cooler when the temp control in the cooler demands it? Also if that is the case, and the outside air is cold enough to maintain the cooler and not the freezer, should I just pull outside air into the cooler instead of running the ac? Here is a crappy drawing of what I mean:
My biggest concern is the insulation. I can wire a factory to make it automatically, but I have no idea what I am doing with R-Values or what types would be best suited to this application. My boss suggested using the foam sheets nailed to the outside then spray foam to fill between all of the studs then more foam board on the inside (moisture proof stuff). I am not sure if this is the best way to go to achieve a superior R-value. This setup will be in a basement and will have two walls up against the foundation. I will frame out these walls but I am concerned with moisture on my insulation creating mildew.
Any suggestions on how I should approach insulating this thing? Floor, Ceiling and Walls will all have to be taken into account. The actual floor will be tiled or vinyl, most likely tile over a backerboard made for bathrooms. The insulation will have to go under that.
This is all I have for now, I am sure that I will be adding more as this is even more daunting than my RIMS build.