Part J
Combustion Appliances and Fuel Storage Systems
Building regulations covering combustion appliances (boilers, stoves, fires) and fuel storage systems. Sets boiler flue siting requirements including minimum distances from windows, doors, boundaries, ground level, and roof openings; carbon monoxide alarm requirements for solid fuel and biomass installations; hearth, chimney and flue construction; and oil/LPG fuel storage tank separation distances.
Also known as
Part JApproved Document JAD JCombustion Appliances and Fuel Storage SystemsBuilding Regs Part Japproved-document-j
Pages where Part J comes up
2 guides reference Part J, grouped by build phase.
First fix
Second fix
Want the full picture?
The buildwiz build guides walk through a UK extension in sequence and link to Part J (and every other Approved Document) at the exact stage it bites. That is usually a more productive way to use this material than reading the document cover to cover.