The new customized type of ZOZEN SZS series oil/gas-fired boiler is now available on the website. The new appearance of SZS series acquires the patent No. CN202030030831.X with the good performance of anticorrosion. Also, the well-structured 'D' type chamber with large volume design ensures the sufficient combustion and good airtightness. The imported low-NOx burner can easily control the generation of the NOx.