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Building Regulations J – COMBUSTION APPLIANCES AND FUEL STORAGE SYSTEMS

J - COMBUSTION APPLIANCES AND FUEL STORAGE SYSTEMS

Section 1

New guidance has been included for access for visual inspection of concealed flues. This should ensure that flues can be properly inspected both when an appliance is first commissioned and subsequently serviced.

Section 2
Guidance has been included in support of a new requirement J3 “Warning of release of carbon monoxide” on the provision of carbon monoxide alarms where solid fuel appliances are installed. The provisions for flue outlet clearances relative to adjacent pitched roofs have been clarified in Diagram 17. The guidance on the provision of hearths and wall clearances for solid fuel appliances have been made more flexible to take account of the availability of modern appliances.

Section 2, 3 & 4
The guidance for permanent ventilation openings for open flued appliances in very airtight houses (those with a design air permeability less than or equal to 5.0 m3/(h.m2)) have been increased to counteract the decrease in adventitious ventilation relative to older houses. Appendix F gives advice on assessing the air permeability of older houses in relation to this guidance.

Section 4
This section now explicitly includes liquid biofuel and blends on mineral oil and liquid biofuel within the scope of combustion installations designed to burn oil.

Section 5
The guidance on identifying where secondary containment for oil tanks is necessary has been expanded to include locations in inner protection zone as shown on the Environment Agency’s groundwater sources map.

Appendix G
This informative appendix provides and explanation of the European designation system for certain flue and chimney products.

 

What's included?

The building regulations 2010 - Combustion appliances and fuel storage systems

Content includes:

  • J1 Air Supply

  • J2 Discharge Of Products Of Combustion

  • J3 Warning Of Release Of Carbon Monoxide

  • J4 Protection Of Building

  • J5 Provision Of Information

  • J6 Protection Of Liquid Fuel Storage Systems

  • J7 Protection Against Pollution