Ever been confused with how to make the perfect circle skirt or half circle skirt because maths was too irritating to try and figure out? Here are some formulas and additional diagrams to help you out!
small rocket stove and coiled copper piping, you can heat and pump all the hot water you will ever need without electricity. I agree with Ron Marlett as I have seen a similar hot shower concept here in Africa Bosveldt. This is worth looking in to.