Selling at farmer's markets... in the heat of summer?
Posted in: Tech Help, Tips, Tricks, & Techniques
: Something no one has suggested so far are thermoelectric coolers. They come in a variety of sizes, and unlike ice cooling, these units actually dehumidify, instead of adding moisture to the air in the cooler.I built a 12-volt powered, LED-illuminated portable display cooled by a unit cannibalized from a cooler. A compact 12-volt car battery could easily power this unit all day, as it draws a measly 67 watts of power. It works quite well, usually giving a 15 degree differential between outside and in. Where I'm located there's no need for more cooling, but I imagine adding a second unit would do the trick in hotter places. Here's a picture.