... 1.heat pipe collector 2.solar hot heating system 3.5-10t 4.large solar area collector solar ... solar collectors. It consists of solar collecting system, water storage system, control system and pump system. The working principle of solar water heating ... pressure solar water heater, just like a large central heating system. MODELTTHCVacuum tubeCollector Area( m²)DimensionHot water outlet(L)ConnectionG ...