NBN EN ISO 13790 : 2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Outline of the calculation procedure and required data
6 Intermittent heating
7 Heat loss (single zone calculation)
8 Heat gains
9 Heat use
10 Annual heat use of the building
11 Energy for space heating
12 Report
Annex A (normative) Application to existing buildings
Annex B (normative) Multi-zone calculation method
Annex C (normative) Intermittent heating - Calculation of
                       adjusted internal temperature
Annex D (normative) Calculation with holiday period
Annex E (normative) Heat loss of special envelope elements
Annex F (normative) Solar gains of special elements
Annex G (informative) Ventilation airflow rates
Annex H (informative) Data for solar gains
Annex I (informative) Calculation of heat use for each heating mode
Annex J (informative) Accuracy of the method
Annex K (informative) Conventional input data
Annex ZA (informative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

Provides a simplified calculation method for assessment of the annual energy use for space heating of a residential or a non-residential building, or a part of it, which will be referred to as "the building".