and welcome to cruising.
the low cost options are limited. things that move heat around are the first items to work on. using the engine to drive the reefer compressor and a holding plate, and extra insulation on the ice box.
another approch is to use multiple charging sources; wind, solar, hydro (works under sail only), and diesel.
the low cost options are limited. things that move heat around are the first items to work on. using the engine to drive the reefer compressor and a holding plate, and extra insulation on the ice box.
another approch is to use multiple charging sources; wind, solar, hydro (works under sail only), and diesel.