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not be closer than 25mm to combustible material and must be lined with steel sleeve not
less than 0.5mm thick (See figure 14). The sleeve can be made by coiling a piece of
sheet steel to between 125mm & 127mm outside dia. and fitting it to the combustible
parts of the construction.
2.
Mark out and cut a hole 177mm diameter through the plasterboard.
3.
Cut a hole of about 165mm in the vapour barrier. Clear the insulation quilt from the
hole area and cut a 177mm dia. hole in the timber sheathing and breather paper.
4.
Drill a 127mm diameter hole through a non-combustible (brick etc.) outer wall.
5.
Fit the steel sleeve. The sleeve should not protrude more than 10mm into the cavity.
The sleeve should be sealed to the inner leaf of the wall at both ends with a non-setting
thermal mastic sealant.
6.
If the outer wall is combustible drill a 177mm hole and fit the liner sleeve through to
this wall.
7.
Cover the hole with a steel plate size 500mm x 235mm, not less than 1.5mm thick
with a 127mm diameter hole in the middle. Fix with suitable screws and plugs.
8.
Where the whole wall is of combustible material a non-corrosive plate 455mm square
with a 127mm diameter hole in the centre must be fitted to the outer face of the wall.
9.
The area immediately behind the firebox must be separated from the combustible
elements of the inner wall by 25mm thickness of non combustible material.
This can consist of the usual 13mm plasterboard wall lining plus 12mm of “Superlux”
or similar non-combustible material (See figure 14).
7.10 Fixing the appliance in position.
There are two methods of fixing that may be used:
1. Cable Retention
2. Use of fixing brackets
If the fire is to be fitted in front of the wall, then fixing brackets may be used. If this is
the case, then refer to the section entitled “Securing firebox to wall using fixing
brackets” further on in this manual.
If the cable fixing method is used, it will be necessary to install the eyebolts now. This
is achieved as follows :
1.
Working from the centre of the flue hole, mark up four holes as shown in figure 15.
2.
Drill the fixing holes to a minimum depth of 42mm using a 7mm masonry drill.
3.
Insert four fibre wallplugs (supplied in loose parts pack).
4.
Now firmly screw in four eyebolts (also supplied in loose parts pack).
7.10.1
Provision for main loom.
It may be necessary to cut a groove in the flue hole to ensure that there is adequate
clearance for both the flue tube and the electrical loom. A trial installation of both is
INSTALLER GUIDE
