Vaillant’s evacuated tube collectors are manufactured using specially toughened glass and a special high selective absorber coating. They are delivered pre-assembled with either 8 or 16 tubes and are compact and lightweight for ease of installation. The tubes have the benefit of a 10 year warranty against defects in manufacture. Panels can be simply pushed together and up to a total of 12 panels can be connected in series providing a neat and attractive installation. Total siting flexibility is provided by an extensive range of mounting accessories, suitable for pitched or flat roofs and wall fixing. The auroTHERM exclusive collectors are fully tested and approved to EN 12975.