5
If it is being drawn into the chimney proceed with the installation. If not, preheat the
chimney over the period of a few minutes and recheck. If there is any doubt about
the soundness of the chimney a smoke pellet should be used after preheating the
flue and if smoke still fails to clear, further investigation of the chimney is required
and the appliance MUST NOT be fitted.
5 The gas supply should be routed from the meter or cylinder to a point convenient to
the fireplace.
6 Cut and form a section of 8mm pipe, only rigid and semi-rigid tube is acceptable and
run this into the fireplace opening. If a concealed fitting is required, care must be
taken to sleeve the supply pipe when fitting through masonry.
7 Place the appliance centrally within the fireplace opening. N.B. No part of the
appliance should project beyond the vertical opening of the fireplace opening.
8 Using the nut and olive provided, connect the 8mm supply pipe to the combined
pressure test point and isolator fitting.
Gas Soundness Check
9 With the gas supply connected, all joints should be checked for gas soundness in
accordance with BS 6891.
NOTE: It is permissible to light the fire FOR SHORT PERIODS ONLY when the fire
is not laid with ceramics and logs.
FITTING THE APPLIANCE INTO THE OPTIONAL RADIANT FIREBOX
1 Check that the fireplace or recess is of the correct size to receive the radiant firebox.
See Figure 1.
Note: BS 5871 Part 2: requires a debris collection space of 12 dm3.
2 It is recommended that, before proceeding further, a simple smoke test be performed
to check the condition of the chimney. Light a smoke match or a twist of rolled
paper, hold it within the fireplace opening and observe the behaviour of the smoke.
If it is being drawn into the chimney proceed with the installation. If not, preheat the
chimney over a period of a few minutes and recheck. If smoke still fails to clear,
further investigation of the chimney is required and the appliance MUST NOT be
fitted.
3 In either case, clear the recess of any loose material. Ensure that the base on which
the firebox will stand is level and that the base of the recess and the hearth are
horizontal and non-combustible.
4 Slide the firebox into the opening, ensuring that the flue outlet is unobstructed and
give a clear passage for the products of combustion to the flue. (Do not seal at this
stage.)
5 The firebox should be fitted in such a manner as to be removable, for the purposes
of chimney-sweeping and easy removal of debris.
6 The gas supply should be routed from the meter or cylinder to a point convenient to
the fireplace.
7 Decide whether the gas supply is to be routed through the sides or back of the
firebox, or across the front of the fireplace. Grommeted holes are provided in the rear
and side of the box. Having determined the position of the gas pipe the appropriate
grommet can be pierced with a knife. Provision will have to be made to pass the
pipe through the masonry of the fireplace. The supply pipe should be run to make
removal for servicing easy.