aesthetics Minimal aesthetics with attention to detail, safety and functionality. The design of the Mark4 is protected by a guaranteed European right to an industrial design.
Innovative features The first solar with support system entirely made of aluminum for easy installation, high aesthetics and incomparable longevity. The collector's production method is truly subversive. The glass and aluminum back are pressed to form a robust set with a very clean appearance and weather resistance. The double-wall anodized aluminum frame is a global innovation that gives great durability and better insulation, thus better performance.
High performance The Mark4 collector gives the system really high performance. It has a high-selective tinox absorber (e<3.5%) with one copper tube per 10cm and ultrasonic welding. The glass is low-iron high permeability (T>91.5%). The collector's thermal loss factor is one of the best officially counted in Europe (a1=3.63). The certified performance of the Mark4 collectors is 715 kWh/m2/year ensuring sufficient energy to meet 90% of your hot water needs.
The collectors of CALPAK bear the European brand of quality and performance Solar KeyMark
recommended to serve 4-5 people
collector total / active surface (m2): 2.64 / 2.44 copper hydroskeleton tubes: 11 absorber: high selective (Tinox) with copper hydroskeleton Welding Absorber: Ultrasonic absorbency: a > 95% thermal absorber emission: e < 3.5% frame: anodized double-wall aluminum glass: tempered 3.2mm (safety), low-iron (permeability >91.5%) insulation: stone wool with a density of 50 kg/m3 and a thickness of 40 mm collector assembly method: sealing glass and back in a press thermal loss factor: a1 = 3.63 performance (G = 1000 W/m2,