I did the cooler thing for years, I even had it resting inside another inch of foamboard insulation, but ziplock baggies filled with cooler water and having to go get more block ice was irritating and expensive.<br><br>In '07 I got 130 watts of solar and a Norcold De-0040( very similar to the link above). Afraid 130 watts was not going to be enough I added extra insulation and made sure the condenser could breathe well, built the cabinet around the fridge, and I found that I probably could have gotten by with just 60 watts for the fridge alone.<br><br>But the fridge was a vibrating noise maker, and I spent a LOT of time and effort isolating it and dampening for sound and vibration, with good progress, but still annoying levels left over.<br><br>The Norcold failed after 5 years of running continuously 11 months a year<br>I replaced it with a Vitrifrigo, with a Danfosss compressor. Much quieter no vibrations, slightly better efficiency, and the compressor is capable of powering upto an 8 cubic foot fridge. It is just coasting along keeping a 1.8 cubic fridge below 35F.<br><br>And the cost of ice over a year, not including the gas to go get it, cost nearly ad much as the fridge.<br><br>No ziplock baggies filled with water<br>No spoiled food<br>No having to go get more ice.<br>And having excess solar power available...<br>The fridge was the single best improvement to this lifestyle in my opinion.<br><br>When my Norcold failed and I went back to the cooler and block ice for 3 weeks till the Vitrifrigo arrived, I was miserable and was throwing out food and wasting money on ice and the gas to go get it.<br><br>There is a lot to be said for simplicity, but when long term simplicity costs more than an initial output for a little more luxury, one must look at the return on investment. <br><br> Right now My fridge is packed to the gills, and I have enough cubed ice this fridge made for about a dozen mixed drinks, and I have not plugged into the grid in months. My batteries rarely see any charging source but solar or alternator, and I totally take it for granted.<br><br>No filling of propane tanks, no worrying about spoiled food, no icewater surrounding my food, no having to empty or sterilize a cooler. No inverter running 24/7.<br>12v compressor fridges are awesome.<br><br><br>