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the Environment for
Northern Ireland.
In the republic of Ireland
the installation must also
conform to the relevant
parts of:
a)
The current edition of
IS 813
b)
All relevant national
and local rules in force.
2.2 In the United
Kingdom, as supplied, the
appliance can be installed in
the following situations: -
2.2.1 To a fireplace
complete with surround and
hearth as shown in figure 1
and complying with
BS1251 after removal of
the fireback and sufficient
material behind the fireback
for a debris catchment space. The required fireplace, hearth, debris catchment area and
clearance dimensions are shown in figure 1.
2.2.1.1 'Hole-in-the-wall' Installations
• It is recommended that a hearth should be installed as in figure 1.
• If a reduced depth Hearth is fitted, the fire must be installed so that the distance
from the base of the fireplace opening in the wall to the finished floor level is at
least 85mm. It is recommended that the reduced hearth has a depth from the fixing
plane of the fire of 100mm minimum. This is necessary to support the lower front
casting.
2.2.2 To a fireplace incorporating a metal flue box complying with the constructional
requirements of the current edition of BS715. The dimensions of the flue box must
conform to those shown in figure 2.
A precast concrete or clay flue block system conforming to BS1289 with dimensions as
in figure 3. The current versions of BS1289 and BS EN 1806 recommend that there
should be an air space or insulation between the flue blocks and the plaster because heat
transfer may cause cracking on directly plastered flues. However, generally this
INSTALLER'S GUIDE
Figure 2. Metal Flue box dimensions
Page 6
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