73D4126
17
DVKST Series Gas Fireplace
VenTInG InSTallaTIon
If the foun-
d a t i o n i s
r e c e s s e d ,
use recess
brackets (not
supplied) for
s e c u r i n g
lower portion
of the snor-
kel. Fasten
brackets to
w a l l f i r s t ,
then secure
to snorkel
with self drill-
ing #8 x 1/2
sheet metal
s c r e w s . I t
will be necessary to extend vent pipes out as far as the
protruding wall face.
Figure 16
FP1966
snorkel
Figure 16 -
Snorkel Installation, Recessed Foundation
Foundation
Recess
Watertight Seal Around
Pipe
Sheet Metal
Screws
Wall Screws
Snorkel
FP1966
w
arn
In
G
•
Do not back fill around snorkel.
•
a clearance of at least 4" must be
maintained between the snorkel and
the soil.
VerTIcal (ThrouGh-The-rooF)
applIcaTIonS
This gas fireplace has been approved for,
•
Vertical installations up to 40' (12 m) in height. Up to
a 10' (3 m) horizontal vent run can be installed within
the vent system using a maximum of two 90° elbows.
Figure 17
noTe:
Horizontal sections of this vent system require a
minimum of 3" clearances to combustibles at the top of the
flue and 1" clearance at the sides and bottom until the flue
penetrates the outside wall. A minimum 1" clearance all
around the flue is acceptable at this point of penetration.
Vertical sections of this vent system require a minimum of
1" clearance to combustibles on all sides of the pipe.
•
Up to two 45° elbows may be used within the horizontal
run. For each 45° elbow used on the horizontal plane,
the maximum horizontal length must be reduced by 18"
(457 mm).
Example:
Maximum horizontal length
No elbows = 10’ (3 m)
1x45° elbows = 8.5’ (2.6 m)
2x45° elbows = 7’ (2.1 m)
•
A minimum of an 8' (2.5 m) vertical rise is required.
•
Two sets of 45°elbows offsets may be used within the
vertical sections. From 0 to a maximum of 8' (2.5 m)
of vent pipe can be used between elbows.
Figure 18
•
The maximum angular variation allowed in the system
is 270°.
Figure 18
•
The minimum height of the vent above the highest point
of penetration through the roof is 2' (610 mm).
FP1183
max height
40' Maximum Height
12' Minimum Height
10'
Maximum
Support Straps
Every 3'
24" Min.
FP1183
Figure 17 -
Support Straps for Horizontal Runs
Example:
Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total Angular Variation = 270°
24" Min.
1
2
3
4
1
2
3
4
FP1179
max bends
Figure 18 -
Maximum Elbow Usage
FP1179
