I am exploring building a refrigerated display using a window AC unit or an old fridge for the cooling source. The display needs to maintain temps below 80F. It will be in an unheated building in an area that gets into the high 90s with night temps in the low 80s. The display needs to maintain this temp for about a week month. It is for what can be likened to a farmers market. It will be used to cool frosted cake goods to keep the buttercream from melting.My idea is to seat a small window AC in the bottom with a plastic drip tray underneath and maybe a box fan to blow the air out the back of the bottom. Then channel the air through a duct to a platform with holes to distribute the cold air to a shelf where the cold stuff will sit.My fear is setting something on fire and destroying a building. Can someone weigh in on this? It seems like it should work, but I'm not sure via /r/DIY https://ift.tt/2NUW0PR
