1) High efficiency solar collector using heat pipe evacuated tubes 2) Able to be used in all climates 3) Reliable and efficient with twin-glass solar tubes 4) Copper heat pipes for rapid heat transfer 5) Easy plug-in installation for mounting on the roof or at ground level 6) Maintenance free 7) Suitable for mains pressure water (up to 8bar / 116psi) 8) Corrosion resistant silver brazed copper header 9) Frame material: 304 2B grade standard steel 10) Casing material: 304 BA or AB stainless steel 11) Excellent insulator in glass wool 12) Collectors may be connected in series to increase water heating capacity 13) Tubes easily replaced if broken - can be used with broken tubes 14) Ideal for commercial solar water heating applications