BS 5440-1:2023 PDF

1   Scope This part of BS 5440 specifies requirements for the installation of gas appliances to chimneys , chimney installation work likely to be undertaken by gas engineers and operatives working under UK gas industry conditions, and requirements for the maintenance of chimneys . It is applicable to open-flued chimneys for Type B gas appliances and room-sealed chimney configurations for Type C gas appliances, each of rated input not exceeding 70 kW net (see Note 2 and Note 3), burning 1st, 2nd or 3rd family gases. It applies to chimneys of the natural draught or fanned draught type and is applicable to room-sealed chimneys and open-flued chimneys supplied with the appliance as well as to those supplied separately.

NOTE 1

Type B and Type C appliances are explained in Annex A, Table A.1.

This part of BS 5440 complements the requirements for the design, installation and commissioning of chimneys as required in BS EN 15287‑1 and BS EN 15287‑2, and provides extra requirements that are specific to the UK gas industry. This part of BS 5440 specifies the following:

a) requirements for the selection of the correct chimney configuration option for gas appliances in the UK; ...