Cobra Solar Heater Features 1.1, The Cobra Solar Heater Tank is composed of two internal and external that are made of the finest stainless steel and laser welded to ensure that no diversion of water from the tank and between them a dielectric material (Polyurethane) German-made with thickness of 50-60 mm in order to keep the hot water in the tank for a period ranging from (72-80 hours) and not being affected by the external atmosphere surrounding it. The vacuum glass tubes are composed of two glass tubes were welded after getting rid of the vacuum between them to ensure keeping the heat.

Cobra Solar Heater Features 1.2, The Cobra Solar Heater's external tube allow the sun rays to go throw the inner tube and doesn't allow the exit of the heat due to the presence of vacuum between the tubes. Also, the external tube will always be cool. When the water enters the inner tube, it becomes hot after a few minutes. And as a result of differing densities theory, the hot water rises to the top of the tank and the cold water descends to be heated and so on. The Temperature reaches 95 °C inside the tube in less than 25 minutes.