Hills Solar Evacuated Tubes

   

Evacuated tube technology delivers significantly better performance than traditional absorbers on the market today. Their advanced design incorporates tubes that consist of 2 layers of borosilicate glass with a vacuum layer between them. The vacuum acts like a thermos flask, retaining up to 97% of the thermal energy, resulting in an increased efficiency.  The Sun's thermal energy is then transferred to the manifold via the heat pipe located in each tube.

The small amount of evaporative liquid in each tube is super heated by the sun's energy and forms into a gas. The gas  rises to the top of each pipe. Heat transfer then occurs between the pipe and water passing through the manifold . The water is then transferred to the tank.

The cylindrical design of the tubes ensures effective collection of the sun's thermal energy throughout the day.

Hills Solar Evacuated Tubes are frost tolerant and have passed the AS/NZ 2712  2007 Standards for both, Hail & Freeze Resistance. The Hills Solar Hot Water Systems have passed the Freeze Test to –15° C without the need for a heat exchanger or Glycol..

Hills Evacuated Tubes are manufactured using high quality Borosilicate Glass and attract a 10-year warranty.

Hills Solar Systems are available with both gas boosting and electric boosting.