6
For newer build properties, the
requirements may need to be higher if
the design permeability of the home is
less than 5m
3
/h.m
2
. For more details, see
approved document J of the Building
Regulations.
This appliance is capable of having the air
supply introduced through the base (as per
previous page). The same equation with
respect to total free area must be adhered
to. Please order a room sealed kit from
Firebird to ensure air tightness is achieved
NOTE: Only Firebird’s room sealed kit can
be installed with a Firebird inset stove.
Please refer to kit instructions for full
guidelines.
NOTE: No extractor fan should be fitted in
the same room as the appliance.
4.4 FIREPlACE
When fitting into an existing fireplace,
remove fireback or boiler and clear out any
loose back fill material.
Access from the side of the chimney breast
should be made available to facilitate pipe
work connections. In addition, access to
the front of the chimney breast may be
required, via a hole, for fixing the flue pipe
and back filling.
4.5 HEARTH
The appliance must be installed on a
hearth that can take the weight and is of a
non-combustible material.
Ensure that when installing the appliance,
the following regulations are met:
IRL - Building Regulations 1997, Technical
Guidance Document 5, states that the
hearth must extend in front of the
appliance by 500mm and to the sides
by 150mm.
UK- Building regulations for class 1
appliances state that the hearth must
extend in front of the appliance by
300mm and to the sides by 150mm.
4.6 CHIMNEY/FlUE
In order for the appliance to have sufficient
draw to perform satisfactorily, a height of
no less than 4.5 meters, vertically from the
top of the appliance to the top of the
chimney, is required. Alternatively,
chimney design with sufficient draught
can be calculated, in accordance with
EN13384-1.
NOTE: a flue draught requirement of at
least 12 Pa is required.
The existing chimney must be checked
before installing the appliance. It must be
sound, free from cracks and blockages and
swept. It should not have an excessive
cross sectional area greater than 250mm
x 250mm square or equivalent area.
limiting dimensions of
surround and opening
Fireplace surround
Facia area
Opening
16” inset - min 405
18” inset - min 455
16” inset facia - 495
18” inset facia - 545
16”
& 18”
facia - 610
16”
& 18”
inset - min 559
