We are installing new refrigeration in the boat this winter. Bette is working through adding insulation to the existing box, vapor barrier, new PVC lining and eventually 2 separate evaporator coils with 2 separate condensers. This 12 volt setup will draw minimally while giving us a separate freezer and frig. Until we really need freezer, the we'll use both as frigs or even just one. Also gives us a backup should one poop out. We like the redundancy. We're counting on the 300 watts of solar power from the Solbian panels to keep these guys humming.