Appendix 3: Distance from combustible material
ROCK 350 - Minimum distances in millimetres
400
800
50
870
20
1
Combustible material
2
Incombustible material, thickness 100 mm
* with heat shield and insulated tube
** without heat shield but with insulated tube
Please note: In order to guarantee the supply of combustion air when there is no outside air supply
connection, the distance from the connection collar for the outside air to the wall must be at least 20 mm. If
necessary, the connection collar can be removed.
Subject to change because of technical improvements
900
820
850
150
200
740
2
1
20
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