8
Venting through a Masonry Fireplace
1.
1.
1.
1.
1. Measure height of the chimney to fireplace opening.
Determine if both the intake and exhaust will be
extended to the top of the chimney. In C
In C
In C
In C
In Canada,
anada,
anada,
anada,
anada, both
both
both
both
both
liners must
liners must
liners must
liners must
liners must e
e
e
e
extend
xtend
xtend
xtend
xtend the full length o
the full length o
the full length o
the full length o
the full length of
f
f
f
f the chimne
the chimne
the chimne
the chimne
the chimney
yy
yy
and be c
and be c
and be c
and be c
and be connec
onnec
onnec
onnec
onnected
ted
ted
ted
ted ttttto both
o both
o both
o both
o both the unit
the unit
the unit
the unit
the unit and
and
and
and
and the
the
the
the
the termi-
termi-
termi-
termi-
termi-
na
na
na
na
nation kit
tion kit
tion kit
tion kit
tion kit.....
2.
2.
2.
2.
2. Cut the appropriate lengths of flex duct for both the
intake and exhaust. Label both ends of the Exhaust
duct.
3.
3.
3.
3.
3. Follow the manufacturer’s instructions to attach the
ends of the duct(s) to the chimney termination kit as
appropriate.
4
4
4
4
4..... Drop the liners down the chimney from the top and
rest the termination kit atop the chimney.
5
55
55..... Seal the chimney termination kit to the top of the
chimney flue with high temperature sealant.
6.
6.
6.
6.
6. Secure the appropriate direct vent cap to the termi-
nation kit.
77777..... Inside the fireplace, fully extend the duct and trim
any excess so that the ends hang approximately 15”
from the floor of the fireplace.
8.
8.
8.
8.
8. If the Intake duct is not attached to the chimney
termination kit:
A.
A.
A.
A.
A. Install a minimum 6 foot length flex duct for the
up the flue.
B
B
B
B
B..... A METAL block-off plate must be constructed and
installed in the damper area to cccccompletely seal o
ompletely seal o
ompletely seal o
ompletely seal o
ompletely seal offffffffff
the flue from the room. Cut holes in the plate for
both the Intake and Exhaust liners.
C.
C.
C.
C.
C. A direct vent cap is required to allow fresh air into
the chimney flue and ultimately into the intake duct
to the insert.
9.
9.
9.
9.
9. Compress the ducts so that they are hanging above
the height of the fireplace opening and are out of
the way.
10
10
10
10
10..... Position the insert without surround panels half-
way inside the fireplace and attach duct you labelled
Exhaust to the Exhaust collar on the insert. Both
Intake and Exhaust collars are labelled.
11.
11.
11.
11.
11. Secure the ducts to the collars with sheet metal
screws or hose clamps. No silicone or sealant is
required.
12.
12.
12.
12.
12. Once the gas line is installed, carefully push the unit
inside the fireplace.
See page 13 for gas line gas line connection.
See page 19 for surround panel installation.
W
W
W
W
Warning:
arning:
arning:
arning:
arning: F
F
F
F
Failur
ailur
ailur
ailur
ailure
e
e
e
e ttttto position
o position
o position
o position
o position the par
the par
the par
the par
the parts in ac
ts in ac
ts in ac
ts in ac
ts in accccccor
or
or
or
ordanc
danc
danc
danc
dance with
e with
e with
e with
e with this
this
this
this
this
diagr
diagr
diagr
diagr
diagram or f
am or f
am or f
am or f
am or failur
ailur
ailur
ailur
ailure
e
e
e
e ttttto use only par
o use only par
o use only par
o use only par
o use only parts specifically appr
ts specifically appr
ts specifically appr
ts specifically appr
ts specifically appro
o
o
o
ov
vv
vved with
ed with
ed with
ed with
ed with
this applianc
this applianc
this applianc
this applianc
this appliance ma
e ma
e ma
e ma
e may r
y r
y r
y r
y result
esult
esult
esult
esult in pr
in pr
in pr
in pr
in proper
oper
oper
oper
operty damag
ty damag
ty damag
ty damag
ty damage or personal
e or personal
e or personal
e or personal
e or personal
injur
injur
injur
injur
injury
yy
yy.....
Fig. 2. Venting through fireplace chimney.
Required metal
block-off plate to
seal flue chamber if
intake flex does not
extend the full
length of the flue.
Maintain the proper
clearance to mantel
and trim
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Direct vent
termination kit
required
GI 450 DV
KATAHDIN
GAS INSERT
Lined Masonry
Chimney Flue
Intake Air
Inlet
Listed Direct Vent
Termination Cap
Required
