Watch Campervan Mods ~ Solar Water Heater (non pressurized) & AC video on DTube
put a solar tank on top of your rv, van, SUV for very cheap. This is probably the cheapest way to go as this method will not use air pressure.
put a solar tank on top of your rv, van, SUV for very cheap. This is probably the cheapest way to go as this method will not use air pressure.