* Heat pipe – offer low maintenance
* No water in the vacuum tubes, no freezing problem in winter, can be used in cold area. One broken tube will not affect the function of the system.
* 3 years warranty, 20+ years lifespan
* Market leading efficiency/output
* Triple layer selective absorber coating, absorption coefficient >94%
* Evacuated tube outer tube thickness >1.8mm
* 24mm high conductivity heat pipe condenser, Nick-coated condenser surface.
* Aluminum frame, strong structure, light weight.
* High and constant pressure of polyurethane foaming technology ensure the outstanding insulation quality.