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excess flex to required length with snips.
Secure flex to combustion air inlet of the stove
with clamp provided. Only connect metal flex
to the appliance; do not substitute or install
plastic flex. The cover plate comes installed
on the lower left corner of the thimble with
intake guard pointing downward to deflect
rain. If it is desired to rotate thimble and air
inlet to another corner, remove the (2) screws
on the inlet guard and re-attach over air inlet
at new location. Secure black interior half of
the Wall Thimble to the interior wall, and the
unpainted exterior half are to be secured to the
exterior wall on both styles of thimbles (Figure
13). The Wall Thimbles adjust to fit walls from
4"-8" thick. For installation in thicker walls an
extension tube may be field fabricated.
WARNING: Do NOT install any combustible
insulation or other combustible material not
approved by Security Chimney within the
Wall Thimble itself. Doing so can create
a fire hazard. The Wall Thimble ensures
the clearance to combustible material is
maintained to make a safe installation. Non-
Combustible insulation (as defined earlier in
this text) may be installed within the thimble
Figure 12
Figure 13
Figure 14
11
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