Anyone know anything about Peltier coolers. A friend of mine wants to cool
12"x15"x30" glass vivarium a maximum of 20-30 degrees farienhieght below ambient temperature. It's long term for a salamander. A friend of hers got her a surplus Peltier cooler. Which I installed. It didn't drop the temperature very much inside the vivarium. After doing some research I don't think it's powerful enough. As far as I know she doesn't have any specs on it. So the questions are: Is this a good way of cooling in this situation? Got any better suggestions? Would house insulation sheet foam on 5 sides make an appreciable difference? My first suggestion was air-condition the room but she doesn't like air-conditioning. I'm in Hawaii so ambient temperatures are 59-90 farienhieght. Thanks for any thoughts or suggestions.Karl