User manual

Page 12
This type of installation can normally be used
with non-combustible cavity wall
constructions, and allows a greater choice of
surrounds and fireplaces to be used where
space is of the greater importance.
Where the inner leaf of a non-combustible
wall is to be removed i.e. block or brickwork,
the opening should be made the same size as
indicated in Fig. 12 and a support or lintel
inserted over the opening.
Care must be taken to ensure that any
combustible material in the cavity
(polystyrene foam etc.) is removed or
cutback a minimum of 75mm from any
surface of the hot box. When the appliance is
located on a suitable thickness of hearth as
slated in A1 the rear of the appliance should
not project more than 10mm into the cavity.
This requires the rear of the appliance to be
spaced away from the outer wall using the
spacer strips supplied. The positions and
sizes of the holes for the flue and conduit will
be as in Fig. 6.