Solar Air Heater for sale Hot Air Solar Collector ENSUN-HAS50 is an energy-saving and environmentally friendly heating device, it consists of 50 vacuum tubes, 1 manifold, 1 mounting bracket set, 1 air blower and 1 digital controller. General information Model dimension 3.9x2.08x1.5m Model weight 200kg Absorb area 8銕?/p> Heat power output 3000watt Hot air output 200m鲁/hour Temperature set 50鈩? 205鈩?adjustable Technical specification Manifold inner surface: stainless steel 304, welded with Argon arc technology, thickness 0.41mm Manifold outer shell: galvanized steel with Akzo Nobel powder, thickness 0.45mm, color as request Heat insulation Layer: Polyurethane(made by Bayer,Germany), thickness no less than 55mm ,density > 35kg/m3 Installation Frame: galvanized steel with Akzo Nobel powder, thickness 1.5mm, color as request Vacuum tubes: high borosilicate 3.3 glass. efficiency:91%-93%. three layers coating with copper, aluminum alloy, and stainless steel Electric fan: CE certified, 1 year warranted, 220V/110V,90wattSolar Air Heater for sale website:http://www.ensuntec.com/solar-air-project/solar-air-heater/