Direct Circulation Solar Water Heater

Solar water heaters also called solar domestic hot water systems can be a cost effective way to generate hot water for your home.

Direct circulation solar water heater. From a tank the water flows up through solar collectors and back down to that tank once again and this is the water that you ll use for bathing or for heating your home. It is one category of active solar water heating systems in which pumps being used to circulate household water through the collectors and into the home. It includes a temperature indicator on the back so campers can add cool water if the bag exceeds comfortable levels. The mechanicals for this type of system is almost identical to a boiler application except that the solar array is the heat source.

The system is essentially a closed loop that water flows through. In the active direct circulation systems pumps circulate water from the collectors and into the household. Indirect solar water drainback systems are also a indirect design that use a heat exchanger to separate the collector loop from the potable water. The direct open loop solar water system freeze recirculation is both the simplest and most efficient type of solar heating system.

In this system potable water is drawn directly from the storage tank and circulated through the array to be heated and returned to a recirculation port in the tank. Direct circulation solar hot water systems are one of two types of active solar water heaters the other being indirect. There are two types of active solar powered water heaters. Direct circulation water heaters generally work well in climates where they rarely freeze.

With a built in solar panel the shower bag can heat water in direct sunlight in as little as 3 hours. Whereas indirect systems rely on another liquid to transfer heat to the water used in the house direct systems heat the very water coming in from the cold water intake. Such systems are particularly useful in areas that do not experience freezing climates. 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.