CONVENTIONAL CHIMNEY
A CONVENTIONAL BRICK OR STONE CHIMNEY AS USED FOR SOLID
FUEL APPLIANCE WITH A MINIMUM EFFECTIVE CROSS SECTIONAL
DIMENSION OF 225*225mm, WITH A MINIMUM OF 3 METERS EFFECTIVE
HEIGHT.
A LINED FLUE WITH A MINIMUM DIAMETER OF 125mm WITH THE
FIREPLACE COMPONENTS CONFORMING TO BS 1251
A BUILDERS OPENING A MINIMUM OF 400mm HIGH AND 350mm WIDE
WITH A MINIMUM DEPTH OF 150mm TO ALLOW SUFFICIENT VOLUME OF
DEBRIS COLLECTION.
TO OBTAIN THIS DEPTH IT IS NECESSARY TO REMOVE THE
CHAIRBRICK.
ANY PERMANENT FLUE RESTRICTION OR VARIABLE DAMPER MUST BE
REMOVED OR LOCKED FULLY OPEN.
THE CHIMNEY MUST BE SWEPT PRIOR TO INSTALLATION IF NOT NEW.
THE CHAIRBRICK MUST BE REMOVED ON ALL INSTALLATIONS.
350mm
400mm
150mm
skirting board
fig 2
THE INSTALLATION MUST ADHERE TO OPENING SIZES IN FIG 2
ISSUE 1
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