Hutubi Grain Reserve Facility

For central heating at the Hutubi Grain Reserve Facility in Changji, Xinjiang, Sujing installed an ultra-low-temperature variable-frequency cascade heat pump. It maintains the required indoor temperature in a 10,000-square-metre uninsulated building with existing cast-iron radiators, without modifying the heating pipes or terminals. Average heating cost was below RMB 20 per square metre for one heating season and no specialist on-site operator was required.