Vacuum tubes have efficiency above 90% , that is, they can absorb almost all the solar thermal radiation and transfer it to the water.This absorbed energy is stored in a thermal reservoir, also known as a boiler .
The number of pipes will depend on the amount of water you intend to heat and store, another important factor is the orientation and inclination of the roof where the system will be installed.
In systems where the tubes are directly coupled to the boiler, the vast majority of manufacturers work with 1 tube for every 10 liters of water stored, that is, a 200 liter boiler will have 20 tubes attached.
The vacuum is an excellent thermal insulator . As the water is circulating between the tubes and the thermal reservoir, the temperature losses are very small, and the external climate exerts very little interference in the process, working both in summer and in winter.
It is possible to use solar vacuum tube heaters for both water heating for domestic use in baths and taps, as well as swimming pools . It can also be used for industrial processes or for space heating , using radiators and heat sinks.
Manifold Shape: Rectangular or Round shape
Inner Manifold Material: Food Grade Stainless Steel SUS304-2B with 0.4mm
Outer Manifold Material: Galvanized Steel/Stainless Steel: 0.4mm
Vacuum Tube: Borosilicate glass 3.3
Bracket Material: Galvanized Steel/ Stainless Steel/ Aluminum Alloy
Optional: Controller, Electric Heater, Magnesium Rod and so on