IEC 60379:1987

IEC 60379:2023 specifies methods for measuring the performance of electric storage water heaters to produce domestic potable or non-potable hot water for household and similar use. The object is to state and define the principal performance characteristics of electric storage water heaters and to describe the test methods for measuring these characteristics. This document does not apply to; - storage water heaters that use electricity as a secondary source of heating the water; - storage water heaters that do not use a tank to store hot water; - electric storage water heaters that do not meet the minimum (or maximum) output performance of the smallest (or biggest) load profile, as defined in Table 3; - water-heaters without thermal insulation. This document does not specify safety requirements. For safety requirements, see IEC 60335-1 in conjunction with IEC 60335-2-21. This fourth edition cancels and replaces the third edition published in 1987. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: sustainable development aspects of EU legislation are taken into account, including features such as smart control, V40 modification and measuring procedures for multi-tank appliances.