3
Fig 1.
DESN 510180 C
THE CHIMNEY
COOKER POSITION
When the cooker is installed in a recess it must be
‘freestanding’ and not built-in solid at the sides. Ensure
that any combustible material e.g. kitchen furniture is
spaced away from the cooker to the recommended
distances. See Fig. 1.
Tiling
Where the cooker is to stand in a recess or against a
wall which is to be tiled,
in no circumstances should
the tiles overlap the cooker top plate
.
This appliance is not suitable for installation in a shared
flue system.
The minimum chimney draught requirement at nominal
heat output is 12 Pascal’s.
Check existing chimney
The internal and external condition of the chimney
should be checked
before
the appliance is installed and
rectification made where necessary to prevent leakage
or porosity. The soundness of the chimney which should
have a minimum flue dimension of 150mm can be
confirmed by smoke testing.
Advice on the test method can be obtained from the local
HETAS Ltd approved supplier.
When repairing or re-using existing chimneys it is
recommended that the building control officer be
consulted before the commencement of work with
particular attention to the chimney height and its
termination.
The chimney must be swept before installation.
Erecting New Chimney
The flue through the chimney should be formed with pre-
cast moisture and acid resistant liners with a minimum
internal dimension of 150mm square and all in
accordance with the current Building Regulations J/1/2/3
(England and Wales) and in Scotland the Building
Standard (Scotland) (Consolidation) Regulations and the
Codes of Practice for Chimneys and flues BS. 6461. Part
1 and BS. 7566 Parts 1 to 4.
Ensure the chimney liners are free of projecting internal
building jointing composition before the appliance is
installed.
Factory made Insulating Chimneys
It is recommended the chimney be ceramic lined and
comply with BS. 4543: Part 2.
The minimum diameter for a chimney is 150mm and
there should not be more than two bends of 45° from
vertical.
IN ALL TYPES OF CHIMNEYS THE MINIMUM HEIGHT
FOR CORRECT OPERATION OF THE COOKER IS
5.5m AND SHOULD TERMINATE ABOVE THE ROOF
IN ACCORDANCE WITH REGIONAL STATUTORY
REQUIREMENTS. RECOMMENDED FLUE DRAUGHT
- 12 PASCALS MINIMUM. THE APPLIANCE SHOULD
BE INSTALLED AND CONFORM TO THE CURRENT
CODES OF PRACTICE FOR INSTALLATION OF
DOMESTIC HEATING AND COOKING APPLIANCES
BURNING SOLID FUEL - BS. 8303.
ALWAYS ADVISE THE USER TO CLEAN THE
COOKER FLUES IN ACCORDANCE WITH THE
OPERATING INSTRUCTIONS AND TO HAVE THE
CHIMNEY SWEPT AT A MINIMUM OF 12 MONTHLY
INTERVALS AFTER THE COOKER IS
COMMISSIONED.
