Unit installation

8. PREPARING THE FLUE UNIT
 Measure the total wall thickness
from the outside surface to the inside
face. Add 80mm to this measurement
to obtain the correct length of flue unit
required.
 Mark off the flue length on the
outer (air) tube measuring from the
end of the terminal.
 Insert the polystyrene ring between
the inner and outer tubes to support
them and cut both tubes squarely at
the marked distance.
 Important: Remove all polystyrene
from the flue unit after cutting.
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© Baxi Heating U.K. Limited 2010.
Figure 10. Flue unit installation into a
traditional brick built wall.
INSTALLER GUIDE
Figure 11. Flue unit installation into timber framed buildings.