Duda solar water collector.
Vacuum tube solar water heater system.
A solar vacuum tube works similar in design to a coffee thermos.
It consists of a two layers of glass with a vacuum in between the layers.
The principle behind solar vacuum tubes is simple.
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The outer layer of the solar tube is borosilicate glass which is very low in iron and allows 98 of light energy to pass through.
This if why we use sunrain s patented 3 hi vacuum tubes.
The absorbing coating found on the inner layer determines how efficient the vacuum tube will operate.
Srcc certified for 30 federal tax rebate.
Most vacuum tubes use a hi tech reactive sputtering process to coat the inner tube.
Duda solar 200 liter water heater active split system dual coil tank evacuated vacuum tubes hot srcc certified.
30 x duda 58mm x 1800mm vacuum tubes for active solar systems.
The method and material of this coating will also define the life expectancy of the vacuum tube.
When investing in solar water heaters it is important to ensure the engine you select is the most powerful and the longest lasting made this if why we use sunrain s patented 3 hi solar vacuum tubes.