Excellent method for heating your water off the grid. This method is not only very efficient as it uses what would otherwise be waste heat being directed out through the stack, but it also works in much the same way as a hot water on demand system or a solar water heating system. This concept can even be directly incorporated into your current solar water heating system or as a separate stand-alone in the kitchen or workshop. Keep your mind open and remember to improvise!
Before the Refrigerator, There was the Root Cellar. Here's How to Build One! Stores: Jams, Salted Meat, Bread, Butter, Cheese, Milk and Cream, Apples, Potatoes, Carrots, Plums, Pears, Peaches, Tomatoes, Cabbage, Wine, Beer, Cider, Grains, Nuts, Dried food, Canned Food and MORE!