The Altek SD-T2L-20 solar system is made up of high-quality components. The thermosiphon non-pressurized seasonal water heater is assembled from individual vacuum tubes. Solar radiation energy is absorbed by the absorber and converted into heat to warm the water, while the efficiently selective coating enhances the performance of the solar collector. This system operates with free circulation of the heat transfer fluid. The vacuum tube is structurally composed of two glass bulbs, with the air evacuated from the space between them, reducing heat loss.
The design and coating of the tank ensure resistance to corrosion and good thermal insulation.