WG 3 - TC 59/SC 59C/WG 3

IEC 63159-2-1:2021 applies to electric instantaneous water heaters designed to operate as multifunctional appliances with an electric rated power > 2 kW.
This document specifies tests for the assessment of the performance.
This International Standard is to be used in conjunction with IEC 63159-1:2021.

IEC 63159-1:2021 applies to electric instantaneous water heaters for domestic hot water heating for household and similar applications, which show both of the following characteristics:
– fulfilling at least one load pattern from Annex A;
– heating up to temperatures below the boiling temperature.
This document specifies terms, definitions and measurement methods for the assessment of energy efficiency.
This document does not take into account requirements regarding the safety of the appliances.

IEC 63159-2-2:2021 This document applies to open outlet, single point-of-use, electric instantaneous water heaters intended for household or similar use, for showering purposes without downstream mixing.
This document only specifies tests for the assessment of energy efficiency.
This document does not apply to electrical instantaneous water heaters covered by other parts of this series of standards.
This International Standard is to be used in conjunction with IEC 63159-1:2021.