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Solar Vacuum Tube
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Price: $39.95


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Excellent for winter heating systems and summer projects. Boil water using only sunlight! 1 tube can raise 1 liter of water from 60'F(15'C) to 212'F(100'C) in one hour of direct sunlight. Use this tube for your own science or hobby projects, or for building your own powerful solar-powered home heating systems.

Want a box of 10 tubes? Click here for a 10-tube box

Tube Specs:

-20 1/2" long (about 500mm)
-2 1/4" outside diameter (about 58mm)
-1 3/4" inside diameter (about 43mm)
-Double wall structure with vacuum between walls
-Super-absorbent inner tube coating quickly soaks up solar energy
-Steel, aluminum, and copper coatings for infrared reflective insulation
-Incredible thermos-like properties can keep water hot even over night


Finally you have a reliable U.S. source for high-grade solar vacuum tubes, also known as solar evacuated tubes. Unlike many solar vacuum tube suppliers we offer a standard 100% shipping protection guarantee. Make sure other vacuum tube suppliers you are considering offer this type of no-questions guarantee for these fragile evacuated tubes. We offer excellent customer service for any assistance you many need for your solar hot water system needs, and stand firmly behind the quality of all our products.

Each solar evacuated tube soaks up the energy in sunlight, absorbing it into the super-insulated inner tube of their incredible double-wall heating system. Once inside, the heat of the sunlight is trapped inside the inner wall of the inner glass tube, creating a powerful solar thermal collector. Highly-reflective layers of steel, aluminum, and copper trap the infra-red energy of the sunlight, and the nearly perfect vacuum between the inner wall and the outer transparent wall protect the inner tube from heat loss due to convection, just like a high-grade drink thermos. This thermos effect can quickly heat water to boiling temperatures in direct sunlight, and keep the water well over 100 degrees, even over night! Perfect for you DIY, home improvement, solar hot water heater.

Click Here for more information on Solar Vacuum tube projects

In stock and shipping immediately. We look forward to getting you up and running with solar heat today!