Appliance ventilation duct
Approved document B, Fire Safety, Volume 2, Buildings other than dwellinghouses (2019 edition), defines an appliance ventilation duct as:
'A duct to deliver combustion air to a gas appliance.'
Where an appliance ventilation duct passes through a compartment wall or compartment floor, or is built into a compartment wall, each wall of the duct should have a fire resistance of at lease half the wall or floor in order to prevent the by-passing of the compartmentation.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Industrial Buildings Allowance
ICE outlines plan for more effective infrastructure.
A review of Scotland’s historic lighthouses.
Choosing the most suitable heating system.
Another year of growth, says BSRIA.
Property practices to help tenant retention.
Fire rips through HPL cladding in Bolton.
Disturbing complacency over short courses.
The new science of building engineering physics.
How new technologies and processes could impact on energy efficiency and wellbeing.
BRE launches the BREEAM Data Centres Annex Pilot.
Replacing lanterns and overthrows in Great Pulteney Street.