Vertical condensing gas boiler with non-pressure design, more safety and high-efficiency. ... boilerModel:SCA-5-LThermal power: 50000KcalJin Shunchang hot water boilers provide an outstanding thermal efficiency of 102%, and are suitable for commercial ... , hospitals, hotels,office buildings, villas, apartment buildings, provide hot water drinking water and space heating as well.2. Can be used together ...