GB 21519-2008
ActiveMinimum allowable values of the energy efficiency and energy efficiency grades for electrical storage water heaters
储水式电热水器能效限定值及能效等级
Application Summary AI generated
This standard specifies the minimum allowable values of energy efficiency and the energy efficiency grades for electrical storage water heaters. It is applied in China to classify water heaters into energy efficiency grades (1 to 5), with Grade 5 representing the minimum allowable efficiency for market access. The standard is used by manufacturers for product design and labeling, and by regulatory authorities for energy compliance testing and certification.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.