ok..if you have looked at the back of a frige, take a look... you use copper tubing to add water, therefore adding condensation, but theyere would be ALOT less if you just unhooked the coper tubing from the water supply...and just have it power plugged in..but most fridges don't work that way because you need water for most of them to be cold. But without the water, a regular fridge runs about 40-50 degrees Ferinheight, so it seems doable. But i dont know about miniture fridges, but i bet they work the same way.