GB 24500 Minimum allowable values of energy efficiency and energy efficiency grades of industrial boilers

Last updated: 17 May 2021

Applies to fixed type of steel-made steam boiler with water as medium and rated steam volume no less than 0.1 t per h; and fixed type of steel-made hot water boiler with rated outlet water pressure bigger than 0.1 MPa. Boilers shall use coal; gasoline; or gas as fuel and have rated steam pressure bigger than 0.04 MPa but smaller than 3.8 MPa.

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