Unionrdr I picked up a small fridge from an RV on craigslist, ripped the condenser and coil out if it and put it in the cabinet. The cabinet has 1.5 to 3" polystyrene all around except the door. I also mounted a small fan above the chill plate to help the little guy out. So far it has no problem holding ale temps when ambient us up to 90. I'm considering cold crashing in it when these are done. That should be a good workout for it