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FIREPLACE FRAMING SPECIFICATIONS
Note-
Venting requirements for rear vent applications in corner installations -
- the horizontal vent length a to b, must not exceed 28 inches (711 mm)
Framing should be constructed of
2x4 or larger lumber.
*These dimensions occur when one 45
degree elbow is connected directly to the
appliance collar and the unit moved 1/2
in. (13 mm) into the room. This 1/2 in.
movement is required to achieve a min.
of 5 in (127 mm) in the F dimension.
Figure 15
Proper Sizing of Gas Line
Properly size and route the gas supply line
from the supply regulator to the area where
the appliance is to be installed per require-
ments outlined in the National Fuel Gas Code,
NFPA 54 - latest edition (USA) or B149 - latest
edition (Canada).
Never use galvanized or plastic pipe. Refer to
Table 9 for proper sizing of the gas supply line,
if black iron pipe is being used. Gas lines must
be routed, constructed and made of materials
that are in strict accordance with local codes
and regulations. We recommend that a quali-
fied individual such as a plumber or gas fitter
be hired to correctly size and route the gas
supply line to the appliance. Installing a gas
supply line from the fuel supply to the appliance
involves numerous considerations of materials,
protection, sizing, locations, controls, pressure,
sediment, and more. Certainly no one unfamiliar
and unqualified should attempt sizing or install-
ing gas piping.
12
SV4.5HTSS & SV4.5HTSSL
*F = 5 in.
(127 mm)
*34-5/16
(872)
33-1/8
Back wall of chase/enclosure (including any finishing materials)
Corner Framing with Square Termination (SV4.5HT-2)
Schedule 40 / Black Iron Pipe
Inside Diameter (Inches)
Schedule 40 Pipe
Length (feet)
0-10
10-40
40-100
100-150
150-200
Table 9
Notes:
• All appliances are factory-equipped with a
flexible gas line connector and 1/2 inch shutoff
valve (see Figure 46 on Page 26 ).
• See Massachusetts Requirements on Page
4 for additional requirements for installations
in the state of Massachusetts in the USA.
• The gas supply line should Not be connected
to the appliance until Step 6 (Page 26).
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
SV4.5HT-2 Termination
Termination
8-3/16 (208)
*17-3/16
a
(437)
(841)
*48-1/2
(1232)
• A pipe joint compound rated for gas should be
Natural
Propane
Gas
Gas
• It is recommended to install a sediment trap
1/2
3/8
1/2
1/2
1/2
1/2
3/4
1/2
• Check with local building official for local code
3/4
1/2
IMPORTANT: If propane is used, be aware that
if tank size is too small (i.e. under 100-lbs, if
this is the only gas appliance in the dwelling.
Ref. NPFA 58), there may be loss of pressure,
resulting in insufficient fuel delivery (which
can result in sooting, severe delayed ignition
or other malfunctions). Any damage resulting
from an improper installation, such as this, is
not covered under the limited warranty.
b
7 (178)
b
*24-1/4
(616)
Inches
(millimeters)
used on the threaded joints. Ensure propane
resistant compounds are used in propane
applications. Be very careful that the pipe
compound does not get inside the pipe.
in the supply line as close as possible to the
appliance (see Figure 46). Appliances using
Propane should have a sediment trap at the
base of the tank.
requirements (i.e. are below grade penetrations
of the gas line allowed, etc).
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