Heating homes
All houses are heated by the sun, but only some are designed in such a way as to get as much heat. This allows considerable reduction in energy demand. In these homes are designed with large windows: E from the most sunny, and little of the opposite. In some solutions apply heat-insulating curtains to be closed at night does not allow the escape of heat accumulated during the day. This arrangement is called. passive system.
Another use of solar energy in the home is heating water. The sun's rays heat up the water that flows through the flat panels forming a heat sink absorbing heat. These panels are usually placed on the roof, for providing the largest collection of solar heat. Cold water is pumped to the panels and there heated by the heat absorbed from sunlight.