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Innovative Hearth Products
DRT4000 Direct Vent Gas Fireplace
FIREPLACE FRAMING SPECIFICATIONS
Model
A
in.
40-1/8
67-3/4
40"
mm
1019
1721
in.
45-1/8
72-3/4
45"
mm
1146
1848
* These dimensions occur when one 45º elbow is connected directly
to the appliance collar.
NOTE: Venting requirements for rear vent applications in corner installa-
tions - the horizontal vent length "a" to "b," must not exceed 28" (711mm)
Figure 14 - Corner Framing with Horizontal Termination
Step 2. ROUTING GAS LINE
Route a 1/2" (13 mm) gas line to the left side
of the appliance as shown in Figure 15. 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" shutoff valve. (See Figure
50 on Page 29).
Front Corner of
Fireplace Framing
3"
(76 mm)
6-1/2"
(152 mm)
Also see Figure 13 on Page 12.
Figure 15 - Route Gas Line
Proper Sizing of Gas Line
Properly size and route the gas supply line from
the supply regulator to the area where the appli-
ance is to be installed per requirements outlined
in the National Fuel Gas Code, NFPA 54—latest
edition (USA) or CAN/CGA-B149.1—latest edi-
tion (Canada).
Framing
B
C
D
E
47-7/8
25-11/16
33-7/8
1216
652
860
51-7/16
25-1/16
36-3/8
1307
652
924
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
Left Side
unfamiliar and unqualified should attempt sizing
or installing gas piping.
Inside Diameter (Inches)
Schedule 40 Pipe
Length (feet)
0-10
10-40
40-100
100-150
150-200
Table 6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
F
5-3/4
146
7-1/2
191
*C
back wall of chase/enclosure(including
any finishing materials)
Schedule 40
Black Iron Pipe
Natural
Propane
Gas
Gas
1/2
3/8
1/2
1/2
1/2
1/2
3/4
1/2
3/4
1/2
Installation and Operation Instructions
900357-00, 09/2015
*F
7" (178mm)
a
A
*B
NOTES:
• All appliances are factory-equipped with a
flexible gas line connector and 1/2" shutoff
valve (see Figure 50 on Page 29).
• See Massachusetts Requirements on Page
6 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 7 (Page 28).
• A pipe joint compound rated for gas should be
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.
• It is recommended to install a sediment trap
in the supply line as close as possible to the
appliance. Appliances using Propane should
have a sediment trap at the base of the tank.
• Check with local building official for local
code requirements (i.e. are below grade
penetrations 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.
b
*E
*D
13
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