We bought a small clamp-on fan from Fred Meyer for about $12. It runs on 110 volts. I had seen the muffin fan idea but reasoned that the heat exchanger on the fridge mainly needs air circulating, the cooler the better, muffin fan or not.
Really the biggest difference seemed to come from parking with the fridge side in the shade
. At Valley of the Rogue we first had a site which was in direct sun and the fridge was having a rough time. We switched to a different site with the fridge side in the shade and had no trouble keeping things cool.
It helps to monitor the inside temperature, which I think you do also. Then you can have an accurate idea of what is going on.
Originally Posted by Donna D.
Brian, that's why a number of people have added 2-3 muffin fans to the backside of the refrigerator
, to move the air up and out. There's a lot more information on the CasitaForum about it.