Vertical condensing gas boiler with non-pressure design, more safety and high-efficiency.Thermal efficiency is up to 102% 58kw gas hot-water heaterModel:SCA-5-LThermal power: 50000KcalJin Shunchang hot water boilers provide an outstanding thermal efficiency of 102%, and are suitable for commercial applications such as universities, hospitals, office buildings, villas, apartment buildings. ...