From David In Israel: On Passive Solar Water Heating
James After Passover the weather in Israel always turns hot and clear. Perfect weather to save money. American hot water heating is always on and is always wasting electricity or gas. Passive solar is cheap and simple plus it can be supplemented with electrical on cold days. It is law that every home have a passive solar water heater so I get to see the design on every house, being in the West Bank I also see that the Arab homes and mansions will always have at least one dud shemesh (sun water heater) If a commercial model is too …