A Ceramic Tank In A Steel Case
The Solahart storage tank can be considered as a ceramic tank with a steel casing. It is different from most other solar water heater manufacturers in that it is not plain metal.
All Solahart tanks have an internal double layer ceramic lining, applied after all the fabrication work on the tank is complete to ensure tank integrity.
The double ceramic lining is fused to the steel casing at over 800¡C, pre-stressing it. As it cools, the ceramic lining cools slower than the steel, becoming compressed. This ensures no cracking or crazing of the ceramic lining under normal daily temperature variations and pressures.
The use of a double lining is superior to most water heaters which only use a single lining.
The second Primaglaze¨ coat has been specifically formulated to ensure that the tank will withstand near boiling water over the lifetime of the tank, something that ordinary water heaters cannot withstand.
Over its long development Solahart ceramic tank technology has withstood the vagaries of all kinds of water supplies, and has proven to be a match for any conditions, including waters with high chlorine levels.
Ceramic linings are used because they afford resistance to corrosion, scale deposition, and high temperatures. A fact not lost on some 95% of the world's water heater manufacturers. Metals fused with ceramics have been used in some very extreme conditions such as the nose cones of NASA space shuttles.
( See Fact File 008 for information about the rigorous testing that Solahart products undergo).