6.8.15 Liquid fuel – 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
- if serving open-flued appliances, be vertical where possible. Where this is not possible, pipes should not be more than 45° from the vertical. A horizontal section, less than 150mm long, may be used to connect a back outlet appliance to a flue.
Last updated: 2nd January 2025