18
20306742
KHLDV Series Gas Fireplace
VENTNG INSTALLATION
W
ARNING
• Do not back fi ll around snorkel.
• A clearance of at least 4" must be
maintained between the snorkel and the
soil.
40' Maximum Height
12' Minimum Height
10'
Maximum
Support Straps
Every 3'
24" Min.
Figure 21 -
Support Straps for Horizontal Runs
VERTICAL THROUGH-THE-ROOF
APPLICATIONS
Install restrictor disc as shown in
Figure 20
for vertically
vented applications.
Up to two (2) restrictor discs may be needed for 40' in-
stallation.
The two (2) restrictor discs suppled will work for most instal-
lations. If a third disc is needed order Part No. 56D3027.
This gas
fi
replace 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 21
NOTE:
Horizontal sections of this vent system require a
minimum of 3" clearances to combustibles at the top of
the
fl
ue and 1" clearance at the sides and bottom until the
fl
ue penetrates the outside wall. A minimum 1" clearance
all around the
fl
ue is acceptable at this point of penetration.
Unless the vertical run is 7
1
⁄
2
feet or higher form
fl
oor of
fi
replace, the clearance for the horizontal run is 1" on all
sides.
NOTICE
A restrictor disc must be installed on
vertical terminations that are higher than
12' (366 cm).
Restrictor Disc
Fireplace Collar
Figure 20 -
Install Restrictor Disc into Fireplace Collar
Figure 19 -
Snorkel Installation, Recessed Foundation
Foundation
Recess
Watertight Seal
Around Pipe
Sheet
Metal
Screws
Wall
Screws
Snorkel
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"
(450 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 22
•
The maximum angular variation allowed in the system
is 270°.
Figure 22
•
For the minimum height of the vent above the highest
point of penetration through the roof refer to page 20,
Figure 26.