BS 5440-2:2000

Committees responsible
      Foreword
1 Scope
2 Normative references
3 Definitions
4 Design and materials for air vents and ducts
5 Size and position of air vents
6 Other aspects of ventilation
7 Maintenance
Bibliography
Figure 1 - Typical air vent arrangements
Figure 2 - Free-areas
Figure 3 - Air vents in series
Figure 4 - Air vent positions for an open-flued appliance in
           a room or internal space
Figure 5 - Air vent positions for an open-flued appliance in
           an appliance compartment
Figure 6 - Air vent positions for a room-sealed appliance in
           an appliance compartment, room and internal space
Table 1 - Minimum separation distances between air vents and
          appliance flue terminals (mm)
Table 2 - Minimum air vent free-area for appliance
          compartments: open-flued appliances
Table 3 - Minimum air vent free-area for appliance
          compartments: room-sealed appliances
Table 4 - Minimum permanent opening free-area for flueless(s)
          appliances

Outlines the ventilation requirements for new or replacement gas appliances for non-domestic or domestic purposes utilizing 1st, 2nd or 3rd family gases which carry the CE mark and with a rated heat input not exceeding 70 kW based on net CV. Excludes LPG installations covered by the requirements of BS 5482-2 and installations with all gases covered by BS 5482-3; gas installations in caravans, holiday homes or residential park homes constructed to conform to BS EN 721 or BS 5482-3 which were installed at the time of construction; decorative fuel effect gas appliances of the type covered by BS 5871-3.