A 50/50 propylene glycol and water mixture from the collectors through a coil of pipe in the solar tank, and then is pumped back through the collectors. The potable water is warmed by heat transfer through contact with the pipe. These systems are pre... - Update: 2009-04-19

Special Anodized aluminum alloy frame to ensure handsome appearance and can accept high pressure without leakage Operation Temperature -33??120? Patterned temper glass or low iron temper glass (4mm thickness) is not easy broken with very high trans... - Update: 2009-04-19

The liquid (usually a glycol-water antifreeze mixture) ) in the U pipe heats up, and conducts the heat energy to the water inside the storage tank through plate exchanger or internal spiral coils. 1.Can operate with water pressure up to 6 bar; 2.Ca... - Update: 2009-04-19

An Open Loop Water Heating System provides many advantages It is the simplest and typically the least expensive active system to install. There is no heat exchanger, which allows efficient heat transfer directly to the water. The system Operates at s... - Update: 2009-04-19

Freeze Protection: Because the heat pipe is located within the evacuated glass tube, brief overnight temperatures as low as -20oC (14oF) will not cause the heat pipe to freeze. ? High heat conduction coefficient: is 2000-5000 times of metal materia... - Update: 2009-04-19

Reliable,efficient,Twin-Glass Vacuum tube Easy plug-in installation and Features: An economical solution Could be either vertically or horizontally positioned Especially suit large commercial or industrial applications, such as farm, restaurant,... - Update: 2009-04-19