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For a typical family of four, heating water can account for about 20% of its annual utility bills. If you have two daughters taking long showers, yours may be somewhat higher.
Before you consider using solar energy or any other efficient water heating methods, install low-flow showerheads with shut-off tickle (lathering) valves. Also talk with your family about taking shorter showers. This not only reduces water heating costs, but it also conserves our freshwater supply.
Unless you are an accomplished craftsman, I suggest you make a simple batch solar water heater. This is called a passive system because the water moves through it because of the incoming line pressure or just temperature differences, yet it can be quite efficient and effective.
Author: Haining SunSurf New Energy Technology Co., Ltd
website:www.sunsurf.com.cn
main product: solar heater,solar energy
