hot water

A geothermal plant use hot water from the old coal mines. Significant reserves of water, natural heated will put into action the radiators from hundreds of homes, offices and shops.

"When you are in the shower, the hot water from the shower strikes your body and transfers some heat before it falls away. But most of the heat in that water simply goes down the drain. Reportedly, 80 to 90 percent of the energy used to heat water for the shower is lost down the drain."

A drain water heat recovery unit can have a payback period of less than 3 years in some cases.

Duncan Prahl, Director of Research, IBACOS Inc., outlines the performance of several systems around the U.S. that use solar energy to produce household hot water.

Here’s an article about how to heat the water you are about to use for anything it can be useful. It is easy to build and maintain, and about anyone could make it. Give it a try!