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11
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
C
Back wall of chase/enclosure
(including any finishing materials)
a
7 1/4 (184)
b
D
Inches
(millimeters)
F
A
B
E
Note-
Model SDV35 -
• Venting requirements for rear vent applications in corner installations, the
horizontal vent length “a” to “b,” must not exceed 28 inches (711).
• Dimensions D and F occur when one 45 degree elbow is connected directly
to the appliance collar.
Figure 13 - Corner Framing with Square Termination (SV4.5HT-2)
Fireplace Dimensions - Inches (millimeters)
Model A B C D E F
SDV35
42-1/4
(1073)
57-1/2
(1461)
40-5/8
(1032)
19-3/16
(487)
28-3/4
(730)
6-1/8
(156)
Never use galvanized or plastic pipe. Refer
to Table 6 for proper sizing of the gas sup-
ply 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 qualified 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 installing gas piping.
Schedule 40
Black Iron Pipe
Inside Diameter (Inches)
Schedule 40 Pipe
Length (feet)
Natural
Gas
Propane
Gas
0-10 1/2 3/8
10-40 1/2 1/2
40-100 1/2 1/2
100-150 3/4 1/2
150-200 3/4 1/2
Table 6
Notes:
• All appliances are factory-equipped with a
flexible gas line connector and 1/2 inch shutoff
valve (see Figure 48 on Page 26).
• SeeMassachusetts Requirements on Page 4
for additional requirements for installations in
the state of Massachusetts in the USA.
• ThegassupplylineshouldNotbeconnected
to the appliance until Step 5 (Page 26).
• Apipejointcompoundratedforgasshouldbe
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.
• Itisrecommendedtoinstallasedimenttrap
in the supply line as close as possible to the
appliance (see Figure 48). Appliances using
Propane should have a sediment trap at the
base of the tank.
• Checkwithlocalbuildingofcialforlocal
code requirements (i.e. are below grade pen-
etrations of the gas line allowed?, etc.).
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.
Also see Figure 12
on Page 10.
6 1/2"
(152 mm)
3"
(76 mm)
Figure 14 - ROUTE GAS LINE
Right Side Front
Corner of Fire-
place Framing
Step 2. ROUTING GAS LINE
Route a 1/2" (13 mm) gas line along the inside
of the right side framing as shown in Figure
14. Gas lines must be routed, constructed and
made of materials that are in strict accordance
with local codes and regulations. All appliances
are factory-equipped with a flexible gas line
connector and 1/2 inch shutoff valve (see Step
5 on Page 26).
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).