Vacuum tube solar Water heater
. 5 years warranty
. The life of the vacuum tubes is 15 years
. Anti-freezing-55 degrees

Vacuum tube solar Water heater is a kind of solar water heating systems that the bellow collector directly connect with the above water tank. This solar water heaters do not need to run the pump to force and do not require pipeline connections between the collector and the tank . This is a simple and secure way to collect solar energy. This working principle of solar water heater is make it natural circulation between the water tank and the collector pipe . After the water in vacuum tube heated, natural convect into the water tank, meanwhile cold water in the tank  flows down to the vacuum tubes, that is natural to run continuously to heat the water tank.

Vacuum tube solar Water heater material

. Outer tank material:0.4mm thickness powder coated colour steel

. Inner tank material:0.5mm thickness SUS304-2B stainless steel

. Insulation:55mm thickness polyurethane foam

. Frame material: Zinc-plated with plastic spray coating

. Vacuum tube material: AL-N-AL absorb coating

. Seal material:Stabilized High Temperature Silicon

Vacuum tube solar Water heater technical data