My Main Source of Refridgeration
Cheap to buy, and nothing to maintain. Only drawback is power consumption. The bi-metallic strip and cooling fan draw about 4 amps, so you need fairly big batts, or a large charging system. Helps to precool or freeze some foods ahead of time. Based on the Peltier effect, these units draw down inside temperature about 40 degrees F below ambient air temps. Origo Marine has their cooling unit mounted external to the box, usually on the keel, in much cooler water rather than air to allow lower temperature variations, but is a very expensive unit relative to the cheaper Koolatron portable units. All in all a lot of bang for your buck, but has limitations.Don