Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 31·2.39
Sizing and positioning of flue access points
Access points must be sized and positioned to allow visual inspection of the flue and joints, but need not allow full physical access to the entire flue system.
The means of access for flues needs to be sufficiently sized and positioned to allow a visual inspection of the flue to be undertaken, particularly at any joints in the flue. It is not intended that the means of access should be sized to allow full physical access to the flue system.
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