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20308184
39
VFF Vent Free Fireplace System
7. If the duct is the insulated type, push the insulation back
from one end of the duct approximately 2". Figure 67
8. Slip the exposed end of the duct over the starting collar
on the replace.
9. Using the sheet metal screws provided, secure the duct
end to the collar attached to the replace.
10.Nail or screw the combustion air assembly to the surface
of the wall.
NOTE: If the wall covering is brick or stone, use appropriate
masonry fasteners. If necessary, splice the duct. Use a
model 403-duct connector to splice duct sections.
INSTALL MODEL 403 DUCT CONNECTOR
1. Push insulation back approximately 2" from the end of
each duct.
2. Slip each duct over duct connector until an equal length
of connector extends into each duct.
3. Place duck clamp over the end of each duct. Tighten
duct clamp down snuggly.
4. Push insulation back into place and over duct clamp.
Approximately
2”
Duct Connector
Insulation
Duct Clamp
FP1907
Figure 67 -
Install Duct Connector 403
OUTSIDE COMBUSTION AIR
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