I don't think just burping the fridge will do it for you. White mildew to follow...
I'm working on a full size fridge right now... getting down and dirty with it though. I put a 4" hole in the back to vent out of, working on dampers for bottom. Also working on a slimline filter to fit behind the radiator on the back
I plan on cycle timing the fridge / vent fan to keep cool... however I'm going with a 400w digital hps, 4" vortech cooling it.
Bottom of freezer being cut out, hood drop down through, hole fridge my spot