best efficiency heat pipe solar modules 

Inner tank:1.5mm SUS304-2B food grade stainless steel.

Outer tank:galvanized steel

Heat insulation layer:55-60 mm high density imported PU.

Electrical heater with thermostat.

Feature:

It can operate under the high pressure and high temperature and its life span is 15 years.

The insulation layer of water tank consist of the high density polyurethane foam,the temperature can be preserved for more than 72 hours.

Temperature preservation is equipped with standard electric heater setting,automatic temperature control exchanger,with increased anode magnesium bar.

The anode bar to prevent furring.

Our company is a manufacturer of  solar collectors and solar water heaters in China .We have ISO certification and some other related certifications.We always give our customers best price and good quality! We sincerely hope you will be my next business friends.