Gas-fired domestic appliances producing hot water - Part 7: Assessment of energy consumption of combination boilers equipped with a passive flue heat recovery device
Edition 2023-04-01

Household electric instantaneous water heaters - Methods for measuring the performance - Part 2-2: Efficiency of single point of use electric instantaneous water heaters ((IEC 63159-2-2:2021) EN IEC 63159-2-2:2021) (german version)
Edition 2023-11-01

Household electric instantaneous water heaters - Methods for measuring the performance - Part 2-1: Multifunctional electric instantaneous water heaters ((IEC 63159-2-1:2021) EN IEC 63159-2-1:2021) (german version)
Edition 2023-11-01

Gas-fired domestic appliances producing hot water - Part 3: Assessment of energy consumption of solar supported gas-fired appliances
Edition 2022-11-01

Efficiency of domestic electrical storage water heaters and testing methods (german version)
Edition 2021-09-01

Separator systems for light liquide (e. g. oil and petrol) - Supplementary requirements to OENORM EN 858-1 and OENORM EN 858-2
Edition 2021-04-15

Heating systems in buildings - Simplified method for calculation of the design heat load
Edition 2020-07-15

Gas infrastructure - Quality of gas - Group H
Edition 2019-10-01

Petroleum and related products from natural or synthetic sources - Determination of cloud point (ISO 3015:2019)
Edition 2019-09-15

District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 1: Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
Edition 2019-12-01