Fireplaces, chimneys and flues

6.8.15Oil – flue pipes

Flue pipes shall safely connect an appliance to a chimney.

Flue pipes should:

  • have a free area which is at least the same size as the outlet of the appliance
  • be vertical where possible, or no more than 45° from vertical; a horizontal section, less than 150mm long, may be used to connect a back outlet appliance to a flue.