NTS Vacuum Tubes and Solar Water Heating Systems

Credit: Narva Trade Solar Technic

What makes this product green?

  • Renewable energy equipment


NTS vacuum tubes are made by the German glass company NARVA using a proprietary low-iron glass that is coated with silicon dioxide on the inside and outside of the tube. This combination improves transparency, resists weathering, seals micro-cracks, minimizes gas infiltration, and creates a tube that functions at up to 96% efficiency, according to the company. NTS packages these tubes into its solar collectors that include direct-flow models that generate higher temperatures (for commercial or industrial use), and heat-pipe models that generate lower temperatures for residential or light-commercial use.

Manufacturer Information

Narva Trade Solar Technic
233 Libbey Industrial Pkwy.
Weymouth, MA 02189
Phone: 888-781-4545

Listed in: Solar Vacuum-Tube Collectors