Homemade Flat Plate Solar Water Heater Collector System

Outline area 1.88mm
Aperture area 1.82mm
Absorption area 1.75mm

NW 22/23kg
Capacity of cooper pipe 1.7L
Transparent cover Ordinary fabric surface tempered glass
Aperture rate ≥ 91%
Thickness transparent cover 3.6mm
Absorber China-made blue film
Thickness of Frame aluminum 0.35mm(915*1915)
Heat absorption rate 91± 2%
Emission rate 9± 2%
Welding technics between copper pipe and absorber laser welding from Bluetec
(spot welding double pitch 4mm)
Head tubes Φ22*1