A solar water heater is a method to provide the heat of the sun to heat water for a home. The
energy efficiency of the mechanisms that are used, almost completely
reduce the need for power in the generation of heat in a pipe system. There are various types of solar heater are available which can be used in a wide range of climatic conditions.
Passive systems
A passive solar water heating system does not need to use any power. A solar panel is usually mounted on a building, comprising a number of tubes at the top and bottom. The liquid is drawn from a reservoir through the system by natural processes. Cold liquids down into the solar collector and then get out, if they were sufficiently warmed by the sun. This type of installation requires that the memory and the collector are placed relatively close together, often in a very specific configuration. Passive systems are very low maintenance, but sometimes below freezing, if proper precautions are not taken during installation.
Active systems
An active solar water heater uses an external power source to assist in a traditional style. This typically involves at least one pump and a measuring unit adapted to move fluid into the accumulator when the temperature difference is too large. It could also be an electrical heating element within the memory that can maintain the water at a constant temperature. The energy required for this type of installation are quite lower than normal tanks, leaving only to produce electricity, heat in general. The pipes are resistant to frost in this system because the pump to be removed quickly, any liquid that could freeze in cold climates.
Direct systems
Direct systems can be active or passive. This is a shot of going the actual water to be used in a home is heated by the solar collector without intermediaries fluids or other methods. The main advantage of using direct heating is that the cost and installation of the device is very inexpensive.
Indirect systems
Indirect systems employ a type of liquid agent into the water to be heated in the storage tank. This liquid is known as heat transfer fluid (HTF). The HTF can antifreeze in cold climates or it may just be water. This liquid is heated in the collector and then downwardly to the reservoir, where it drawn with heat coils or other types of lines. An indirect setup can help moderate, so that taps to operate temperatures always consistent.
