All glass vacuum tube
Surromax solar energy vacuum tube adopts all-glass double tube co-axial structure, made of high borosilicate 3.3 glass, super vacuum which achieves 2×10-3Pa.. The vacuum tube is similar to a conventional Dewar flask, which consists of two borosilicate glass tubes, with perfect chemical and thermal shock resistance. The outside of the inner tube that is closed at one end and sealed at the other end of the outer tube, is coated with a sputtered solar selective layer. The annular space between the outer tube and inner tube is evacuated that virtually eliminates heat loss caused by conduction and convection.

Non-pressurized compact solar water heater
Non-pressurized compact solar water heater is a kind of solar water heating system that solar collector and storage water tank are connected together, water tank on the top and collector panel on the bottom. It relies on the natural circulation of waters between the collector and the water tank. As water in the vacuum tubes is heated, it rises naturally into the tank, while cool water in the tank flows down to the bottom of the vacuum tubes, causing circulation throughout the system. It moves household water or a heat-transfer fluid through the system without pumps. It is a simple and safe solution to get heat power from the sun.

Heat pipe solar water heater
Heat pipes solar water heater is all-glass vacuum solar water systems combined with heat pipes inside the glass tube. The selective coating on the inner tube converts solar energy into heat energy and transfers to the heat pipe by an aluminum fin. The liquid in the heat pipe changes into vapour which rises to the condenser. The heat conducts the water inside the tank and the vapour becomes liquid, returning to the base of the heat pipe. This continuous circulation transfers heat from the heat pipe to the cold water in the tank as long as sun is heating the vacuum tube. Hot water can be obtained by injecting cold water from the bottom of the tank

Thermosiphon solar water heater
Thermosiphon Solar Water Heater provides hot water through an efficient copper coil placed in the water tank as a heat exchanger which supplies more than 1.2m2 of heat transfer area. The vacuum tube absorbs the solar energy and heat the water in storage tank. When using the hot water, cold water flows into the water tank through a inlet, then the copper coil which has been pre-heated by hot water in tank, transfers the heat to the cold water in coil, so that the temperature rise up ceaseless. Based on the features of copper coil, the temperature of the water at the outlet is very close to the temperature of the water tank(≤3℃).

Split solar water heating system
Split Solar Water Heating System is composed of solar collector, heat preservation water tank, solar power workstation and the pipe. It could be mounted on the southern roof of the villa，on the courtyardlawn, or any other construction exposed to the sun. The hot water could be delivered to any floor without limitation. The system has adopted the forced circulation (automatic control) work module to control thetemperature automatically