Facing the long and severe winter climate in Northern China, the reliability and energy efficiency of heating systems are crucial. This gallery showcases several central heating project sites in Northern China, all of which have selected the SZS series gas-fired hot water boilers manufactured by ZOZEN Boiler as their core heat source. As a key product of ZOZEN Boiler, the SZS series features a double-drum longitudinal layout and a large furnace design, combined with low-nitrogen combustion technology. This not only effectively reduces NOx emissions but also ensures high-efficiency conversion of thermal energy. With excellent product quality and comprehensive after-sales service, ZOZEN Boiler delivers continuous and stable warmth to thousands of households during the cold winter, becoming a trusted partner for many heating enterprises.



