Haining Sanxi Solar Energy Industry Co., Ltd. specializes in producing solar water heater, solar collector.

Solar water heater is water heated by the use of solar energy. Its system may use electricity for pumping the fluid, and have a reservoir or tank for heat storage and subsequent use. A solar water heater system can form part of a solar thermal cooling system, promoting efficient temperature control of buildings or parts thereof.

A solar collector is a solar collector designed to collect heat by absorbing sunlight. The term is applied to solar hot water panels, but may also be used to denote more complex installations such as solar parabolic, solar trough and solar towers.