Jinan Qilibao Commercial Center covers an area of 85000 square meters, with a total construction area of nearly 120000 square meters. Air energy heating has been used for a long time, but there are problems such as insufficient heating temperature in winter, high energy consumption, and high equipment failure rate. After multiple inspections and comparisons, the enterprise found that the Madishel hot water boiler heating equipment is very suitable for heating large shopping malls such as commercial centers. As the heating season has already begun, a 30000 square meter shopping mall should be renovated first, The overall renovation plan will be carried out after the heating is completed next year. In the early stage, two Madishel hot water boilers will be purchased to provide heating for nearly 30000 square meters of commercial city.