Page 35
Installation Instructions and Owner’s Manual - L48
ENGLISH
Three 90° Elbows
Figure 49
Example Vent Runs
Initial Pipe
Length
A (Vertical)
B
(Horizontal)
Maximum
(Dimensions In Inches)
12
120 (10ft)
186 (15ft, 6in)
24
120 (10ft)
186 (15ft, 6in)
36
120 (10ft)
186 (15ft, 6in)
48
120 (10ft)
186 (15ft, 6in)
*Maximum horizontal run is 100% of vertical,
but cannot exceed 17 feet.
VERTICAL TERMINAISON
Locate and mark the center point of the vent
pipe using a nail on the underside of the roof.
Drive the nail through the center point. Mark
the outline of the roof hole around this center
point.
NOTICE:
Size of the roof hole dimensions
depend on the pitch of the roof. There
must be a 1 inch (25 mm) clearance to the
vertical pipe sections. This clearance is to all
combustible material.
Cover the opening of the vent pipe and cut
and frame the roof hole. Use framing lumber
the same size as the roof rafters and install
the frame securely. Flashing anchored to frame
must withstand high winds. The storm collar
is placed over this joint to make a water-tight
seal. Non-hardening sealant should be used to
completely seal this flashing installation.
Minimum Vent Height Above the Roof.
WARNING
Building codes specify minimum
chimney and vent height above
the roof top. These minimum
heights are necessary in the
interest of safety.
VENT CAP
GAS VENT
24”
24”
MORE
THAN
10 FEET
Figure 50
Note that for steep roof pitches, the vent
height must be increased. In high wind
conditions, nearby trees, adjoining roof lines,
steep pitched roofs, and other similar factors
can result in poor draft, or down-drafting. In
these cases, increasing the vent height may
solve this problem.
Installing the Vent System in a Chase
A chase is a vertical box-like structure built to
enclose the gas fireplace and its vent system.
Vertical vent runs on the outside of a building
may be, but are not required to be installed
inside a chase.
Содержание L48
Страница 2: ......
Страница 81: ...Page 81 Installation Instructions and Owner s Manual L48 ENGLISH NOTES...
Страница 82: ...Page 82 Installation Instructions and Owner s Manual L48 ENGLISH NOTES...
Страница 83: ......