ONORM EN 1264-1 : 2011

Foreword
1 Scope
2 Normative references
3 Definitions
    3.1 Floor heating installation
    3.2 Nominal heat loss of a floor heated room
    3.3 Design thermal output
    3.4 Nominal indoor room temperature
    3.5 Heating floor area
    3.6 Furniture area
    3.7 Peripheral area
    3.8 Residence area
    3.9 Supplementary heating equipment
    3.10 Floor heating components
    3.11 Types of floor heating structures
    3.12 Thermal output
    3.13 Flow surface temperatures
    3.14 Temperatures of the heating medium
    3.15 Temperature drop
    3.16 Design heating medium flow rate
    3.17 Characteristic curves
4 Symbols
Annex A (informative)
Bibliography

Applies to hot water floor heating systems in residential, office and other buildings which corresponds in use to or is similar to that of residential buildings.