Below is a list of top manufacturers that have entered the global market:

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Passive

It implies the absorption and accumulation of energy that kenya mobile database by itself. Solar energy hits the heating object without control of this process, i.e. there are no mechanisms or control elements. This is a simple system that does not require special costs. However, the disadvantages are that the water heater operates unevenly and not at full capacity.

The most obvious example is a darkened tank placed above a summer shower. Single-circuit systems, which use the natural circulation process, operate in such a passive mode. For the system to work properly, the receiving tank is placed above the collector, but this installation method is not always convenient. The issue can be resolved using another method of system operation.

Active

It is free from the disadvantages of a passive system. Its operation is based on the fact that sun rays, thanks to special devices, are converted into thermal energy, which is systematically transferred to the heating tank and the consumer. The operation of such a heater is achieved due to forced circulation, which can be maintained in single- and dual-circuit systems. They also use and additionally install engines that rotate panels and pumps, measuring equipment, as well as control and management devices for the system.

Review of solar water heaters on the market: manufacturers and models
Widespread practical use of such water heaters is observed in many European countries: Israel, Turkey, Saudi Arabia, China, etc. Since the distribution of this type of product is actively increasing, the number of companies that manufacture solar water heaters and provide services for their installation and maintenance is correspondingly increasing.

Sunrain Solar Energy Co., Ltd. – China, has a full cycle of production of this equipment and its components.
Viessmann – Germany, produces two models of heaters: Vitosol 200 and Vitosol 300. The difference lies in the different structure of the heating unit.