Does a mini fridge has different parts than a big one?

Originally Posted by Bear

some small camper fridges use propane, no idea how they work tho

Those systems have ammonia in the and are nasty and can cause much harm to your lungs.

How Does a RV Refrigerator Work? | eHow

Ok well I have been getting mini fridges all summer and have most of them figured out. The cooling system you see in the back of big fridges is 90% of the time the freezer tray if you look close there are raised grooves running throughout the tray holding a tiny refrigerant line this is the cooling system. make sure to rip it out. I get radiator price for them after showing my yard what they were. So basically pull the compressor and cut everything up to the back panel flip it, open, rip out the freezer tray and thermostat done. you can pull the tubing and power line through if you cut one side off first either way works but I prefer pulling from the inside of the fridge as the tubes and wire generally have a soft rubber coating. I have not found any with a stainless back yet but i will recheck the ones i have done just to make sure. They make great storage for tools or shred and I am going to refurbish a few into cabinets for my shed. The ones i am getting take about 5 min to strip and another 15 or so to deal with the compressor and smash apart the thermostat.

freezer tray aluminum with copper lines inside the raised parts
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Warning all is not as it seems
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so to answer the op's original question yes they are the same parts but they look a little different. Haven't come across any thermoelectricly cooled ones yet but will post if i do.