BS ISO 13675:2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Alignment of the parts of the heating system standards
5 Generation sub-system calculation
Annex A (informative) - Additional formulas and default values
        for parametering the boiler efficiency method
Annex B (informative) - General part default values and
        information
Annex C (normative) - Maximum heating power in the
        building zone
Annex D (informative) - Calculation examples for modulating
        condensing boiler
Annex E (informative) - Generation sub-systems and gross
        calorific values
Bibliography

Provides the: - required inputs, - calculation method, and - resulting outputs for space heating generation by combustion sub-systems (boilers) including control.

This International Standard is the general standard on generation by combustion sub-systems (boilers) for oil, gas, coal and biomass burning.

It specifies the

• required inputs,

• calculation method, and

• resulting outputs

for space heating generation by combustion sub-systems (boilers) including control.

This International Standard is also intended for the case of generation for both domestic hot water production and space heating.