Vertical Through-The-Roof Applications - Monessen Hearth KSTDV500 Installation And Operating Instructions Manual

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 Foundation
Recess
s e c u r i n g
lower portion
of the snor-
kel. Fasten
brackets to
Watertight Seal Around
w a l l f i r s t ,
Pipe
then secure
t o s n o r k e l
with self drill-
ing #8 x 1/2
Figure 16 -
Snorkel Installation, Recessed Foundation
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
•
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
40' Maximum Height
12' Minimum Height
24" Min.
FP1183
Figure 17 -
Support Straps for Horizontal Runs
73D4125
FP1183
max height
Snorkel
Wall Screws
Sheet Metal
Screws
FP1966
FP1966
snorkel
10'
Maximum
Support Straps
Every 3'
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).
1
2
3
4
24" Min.
Figure 18 -
Maximum Elbow Usage
Example:
Total Angular Variation =
KSTDV Series Gas Fireplace
FP1179
Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
270°
1
2
3
4
17