How big a boiler does a 5000-square-meter hotel need for heating?

The heating area of boilers with the same power is different in different regions. For hotels with indoor heating temperature of 24℃ and the same building materials, the thermal efficiency of boilers is 100% (the thermal efficiency of coal-fired boilers is 75-82%; The thermal efficiency of gas-fired boilers is 90-95%), such as 5000m2 in Mohe County, Daxinganling, Heilongjiang, and the boiler power is about 1.43MW (about 2t/h boiler); Yanbian area of Jilin Province is 5000m2, and the boiler power is about 0.98MW (about 1.4t/h boiler).