Continental Fireplaces Lineaire CBL56 Serie Manuel D'installation Et D'opération page 24

venting requirements
EN
3.8 vent shield installation
#2 X2
A. Form vent shield to a 90° angle (as illustrated in installation step above).
B. Install the vent shield by securing it to top of appliance using 2 screws (supplied).
C. Adjust vent shield top to suit horizontal run.
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W415-4034 / B / 05.03.22