I have an "apartment fridge." It has a freezer on top and I can fit two cornies and a 5 lb. co2 tank inside. It's tight, and a pain in the butt sometimes to move the stuff around with all the hoses, but it also doesn't take up too much space. It's good for now (had it about 2 years), but I can see myself switching to a chest freezer one day.
It's pronounced "thermometer."