Owner`s manual
Page 8
DV 42 ST See-through Gas Fireplace
rev.110308
Installation
Figure 10. Straight, vertical venting showing required PXT-10 adaptor (supplied
with the PVTK-1 termination).
* For venting minimum 1" clearance to all vertical combustibles,
minimum 2" to all horizontal combustibles.
Figure 11. Vertical venting with 1 oset (1 oset= two 90° bends).
Figure 12. Vertical venting with 2 osets (1 oset= two 90° bends).
* For venting with four 90° a restrictor may need to be used. (PEXT 5/8 Vent).
C - Rigid Sections PEXT-1 (12" m/f Section)
PEXT-2 (24" m/f Section)
PEXT-3 (36" m/f Section)
PEXT-4 (48" m/f Section)
D - Support Ring
& Plate
PSPXT-8
E - Firestop PS-8
F - Roof Flashing PRF-7 (1/12 - 7/12 pt.)
PRF-7 (7/12 - 12/12 pt.)
G - Adaptor / Vent
Reducer
PVA5487 (5"/8" to 4"/7")
5" / 8" Venting
A - Termination PVTK-1
B - Flex Sections PFL-1 (12" Section)
PFL-2 (24" Section)
PFL-3 (36" Section)
PFL-4 (48" Section)
PEXT
Note: Flame characteristics will change if the maximum vent height is used.
A maximum of two osets (each oset has two 90° bends) may be made and
shall not exceed total length of 25% of the vertical vent height, when measured
center to center of piping.
Example: Typical vent installation.
20' vertical vent
2 - 2' osets required
25% of 20' = 5' max. oset allowed
This venting conguration meets requirements.