5
Suitable flues are:-
a)
225mm x 225mm conventional brick flue. If a liner is used it must be 127mm (5in.) minimum diameter, The liner
must be sealed to the surrounding area above the fireplace opening and to the top of the chimney with an approved
terminal being used.
b)
A precast concrete or clay flue block system conforming to BS1289. This appliance is suitable for installations
conforming to older versions of BS1289 as well as the current edition. The flue blocks must have a minimum width
not less than 63mm and a cross-sectional area not less than 13,000mm
2
.
Older editions of BS1289 required a cross-
sectional area of 13,000mm
2
. The current revision of the standard requires 16,500mm
2
. This appliance is suitable in
both cases.
c)
A flue pipe 127mm (5in.) minimum diameter of - see B.S 6461 Part 1 for suitable materials. Metal flue pipes and flue
boxes must comply with B.S 715.
2.4
In the United Kingdom, no special ventilation bricks or air vents are required in the room for this appliance.
In the Republic of Ireland, ventilation must comply with the rules in force.
2.5
Any air supply entering the fireplace from below floor level must be completely sealed off.
2.6
This fire is only suitable for hearth mounting. The hearth must be non-combustible and at least 760mm wide x
300mm deep. The non-combustible hearth material must be at least 12mm thick. Its top surface should be preferably
50mm above floor level in order to discourage the placing of carpets or rugs over it.
2.7
The fireplace opening must be within the following dimensions:-
(a)
Conventional fireplace
:
Width
:
Max. 457mm
Min. 305mm
Height
:
Max. 650mm
Min. 508mm
Min. Depth
:
165mm
(b)
Pre-cast flue:
Width:
Max. 457mm
Min. 305mm
Height:
Max. 650mm
Min. 610mm
Min. Depth:
115mm
(c)
Metal Flue box:
Width:
Max. 457mm
Min. 380mm
Height:
Max. 650mm
Min. 518mm
Min. Depth:
180mm
If a panel has to be fitted to the fireplace to meet the required opening sizes, it must be made of a non-combustible
material.
2.8
There must be a flat area 10mm minimum width outside each side and above the top of the closure plate to
enable the sealing tape to be properly secure. Note that the closure plate can be cut if necessary - see section 4.
2.9
This fire can be fitted to a purpose made proprietary class "O" - 100 C or 150 C surround.
2.10
The flue spigot and any spigot extension must be capable of passing through the closure plate by a least 25mm
with a minimum clearance of 50mm between its open end and the nearest obstruction. There must also be a minimum
clearance of 165mm between the back of the closure plate and the back of the catchment spare (Fig.2). The catchment
space below the flue spigot must extend at least 250mm downwards measured from the bottom of the flue spigot (Fig.2).
2.11
If the fire is to be fitted against walls with combustible cladding, the cladding must be removed from the area
shown in Fig.3.
2.12
Please note that soft wall coverings (e.g. embossed vinyls etc.) are easily affected by hear. They may, therefore,
scorch or become discoloured when close to a heating appliance. Please bear this in mind when installing.
2.13
A minimum side clearance of 150mm measured from the case rear sides must be maintained on all installations to
allow easy operation of the control knob and to give access for removing the outer case when servicing - see Figure 1.
2.14
The space between the fireplace front face and the back of the outer case must not be filled in - see figure 1.
2.15
A combustible shelf may be fitted over the appliance provided that the following conditions are satisfied:-
(a)
In the case of a shelf not more than 150mm deep, there is at least 75mm clearance above the extreme top surface
of the fire.
(b)
For a shelf of greater depth there is an additional clearance of 12.5mm for each extra 25mm of added shelf depth.
2.16
There is no restriction on the depth of non-combustible projections but a space of at least 50mm should be
allowed above the top of the appliance to enable removal of the outer case.
