Hurray, our solar water heater is heating up a lot these days and making hot water for the hot tub. The way it works is that there is a panel on the roof and water is pumped up there. When it reaches 104 degrees the water flows into the tub and new water goes up. By late afternoon the water is quite hot and we only have to use the heater for a short time in the evening to heat it more. I love hearing it gurgle through the pipes. This summer I want to make a solar fountain to listen to and look at while in the tub.
