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3.
I
NSTALLATION
I
NSTRUCTIONS
Before installation, ensure that the local distribution conditions (identification of the
type of gas and pressure) and the adjustment of the appliance are compatible)
3.1. General Safety Requirements
Before commencing installation, ensure that the intended installation will comply
with details in General Information on Page 2.
3.2 Flue Requirements
The following information sets out the flue requirements for all Custom 16 and 18 Models,
However, should the model being installed is Custom 16 or 16L with an input of 6.9 kW then
the flue requirements that are set out in
SECTION 0
to 0
may be applicable.
3.2.1. Masonry Flue
1. The flue must have a minimum cross sectional area equivalent to 175mm (7”) diameter,
and a minimum height of 3 metres (10ft). Larger fireplace openings will require either a
larger flue diameter or increased flue height. For installation in GB, please refer to BS
5871 Part 3 for further information. For installation in IE, refer to the current edition of
I.S.813 “Domestic Gas Installations”.
2. A faulty flue or chimney may result in smoke and fumes entering the room.
3. The flue should be sound, free from obstructions and, if it has previously been used with a
solid fuel or oil fired appliance, it should be swept before installing this gas fire. The flue
must be inspected annually to ensure continued clearance of combustion products.
4. Any flue damper plates or obstructions etc. must be removed and no restrictor plates shall
be fitted. Where removal is not practical, the damper plate/restrictor must be fixed
permanently in the fully open position.
5. Any “stove style” grate must be designed and capable of being operated with the doors (if
any) fully open. These doors are to be permanently fixed in a fully open position. Any
dampers should be removed or permanently fixed in the fully open position. No flue
restrictors should be fitted. The stove style grate should be connected directly to a flue
meeting the requirements above. The soundness/integrity of the unit should then be
inspected/tested for safe operation.
Note: To comply with the expression “permanently fixed in the open position”, a
mechanical fixing that prevents user intervention should be used e.g. requires
the use of tools for removal.
6. It is recommended that a smoke test be carried out before installation to ensure that there
is no spillage of fumes into the room. If spillage occurs this problem must be rectified
before commencing installation.
7. The flue must serve only one appliance.
