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...