Masonry Work For Walls Needing Protection; Expansion Joint Between The Casing And The Fireplace Cassette - Spartherm XS 500 Installation And Operating Instructions Manual

The distance between the fireplace cassette and the insulation must be 60
mm all the way around the fireplace cassette. Insofar as the adjacent
construction components are not combustible or load-bearing then the
distance can be reduced to 10 mm. The heat insulation thicknesses are valid
for hot air systems.
2.13.2

When installing the open fireplace on walls needing protection then
masonry work is required. The masonry work must project at least
200 mm above the flue pipes.

The masonry work (100 mm) can be dispensed with when the build-
ing's walls are:
- At least 115 mm thick
- Made of non-combustible construction components
- Not made of load-bearing concrete or reinforced concrete

The masonry work can be completed in a conventional way e.g.
using bricks or can also be constructed out of so-called "thermal insu-
lation panels" so that the overall construction depth - consisting of
masonry work and thermal insulation - can be significantly reduced.
Alternatively, the masonry work and the insulation can be completed
using suitable insulation materials, see 2.12 /.1. This will enable the
overall thickness to be reduced significantly.
2.13.3
There must be no direct connection between the fireplace cassette and the
casing. An expansion joint is to be fitted that should be connected using e.g.
a sealing strip. Please note that there must be a minimum distance of 6 mm
between the door frame and the fireplace apron to enable the firebox door to
be dismantled if required.

Masonry work for walls needing protection

Expansion joint between the casing and the
fireplace cassette
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