Montigo H38DF Installation Operation & Maintenance page 9

Part Size
A - Termination n/a
B - Flex sections 12" length
24" length
36" length
48" length
C - Solid sections 12" length
24" length
36" length
48" length
D - Support Ring
& Plate
E - Firestop
F - Roof Flashing
(1/12-7/12 pt.)
(7/12-12/12 pt.)
G - Adaptor/
(5"/8" to 4"/7")
Vent Reducer
Figure 15. Straight, vertical venting showing required MXT-10
adaptor (supplied with the PVTK-1 termination).
Figure 16. Vertical venting with 1 offset (1 offset= two 90° bends).
Part No. XG0131
Installation
5"/8" Venting 4"/7" Venting
PVTK-1 MVTK-1
PFL-1 MFL-1
PFL-2 MFL-2
PFL-3 MFL-3
PFL-4 MFL-4
PEXT-1 MEXT-1
PEXT-2 MEXT-2
PEXT-3 MEXT-3
PEXT-4 MEXT-4
PSPXT-8 MSPXT-7
PS-8 FS-7
PRF-7 MRF-7
PRF-12 MRF-12
PVA5487
Figure 17. Vertical venting with 2 offsets (1 offset= two 90° bends).
Reduced Vertical Installation
It is possible to reduce vertical vent runs from 5"/8" venting to 4"/7"
venting. Reduced vertical venting may only be used when the
installation exceeds 12 feet and terminates through the roof, and if
the vertical vent reducer is used with the following venting configu-
ration.
Figure 18. Reducing Vertical Vent from 5/8" to 4/7".
H38DF Gas Fireplace
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