Depends on the dimensions of the kegs you are using and the inside of the box dimension. Most small fridges have a step in the back on the bottom for the compressor and will not have enough open floor space to do 2, maybe not even one unless you strip out the liner and inner door and reinsulate with foam or blue board. Just my .02
What do you mean "no Kidneys"???, WTF now I gotta drink less beer...
Join the Automation sub forum in Electric brewing for a discussion of components and control systems. I did!!!!