Indirect Solar Water Heater System

Conventional storage water heaters usually provide backup and may already be part of the solar system package.

Indirect solar water heater system.

The optimum installation can be constructed by using different accessories. Swh systems which do not include a heat exchanger are called direct systems shown in fig. Instead of relying on glycol for freeze protection this system allows all the water in the array to drain back from the array and into a storage vessel in the solar loop when the pump is turned off. Indirect solar system ite.

6 5 16 in a direct system the service water is directly circulated between the water tank and the collector while in an indirect system a heat transfer fluid usually antifreeze distilled water. The ite as well as the its can be part of a solar water heating system. Indirect solar water drainback systems are also a indirect design that use a heat exchanger to separate the collector loop from the potable water. Indirect systems water is heated directly into solar collectors and circulating in your home it is best suited for cold or freezing conditions where the absence of heat exchangers means that cold cold water cannot be heated effectively.

Active solar heaters are primarily of three types direct indirect and drain. The indirect solar system ite consists of an indirect tank which is connected to a boiler electric gas or oil or water heater. Solar water heating systems almost always require a backup system for cloudy days and times of increased demand.