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NOTICE: Installation, service, and
repair of this appliance must be
performed by a qualified installer,
service agency, company or
gas supplier experienced with
this type of gas appliance. Only
factory authorized components
listed in these instructions may
be used in accordance with the
manufacturer's instructions and
all codes and requirements of
the authority having jurisdiction.
Any modifications to this kit, or
use of unauthorized components
or accessory items will void the
manufacturer's warranty, and may
result in a hazardous condition.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed
only in a solid-fuel burning fireplace with a
working flue and constructed of noncombus-
tible material.
The charts in Figure 2 indicate technical
information regarding the installation of your
gas log set. Please make sure that all of the
specifications shown are applicable before
installation is attempted.
The fireplace must include a working flue and
venting system with the minimum openings
shown in the Figure 2.
DESCRIPTION
18" Single Burner
24" Single Burner
18" Dual Burner
24" Dual Burner
30" Dual Burner
MINIMUM FIREBOX SIZES
LOG
FRONT
BACK
SIZE
WIDTH
WIDTH* DEPTH HEIGHT
18"
34"
16"
24"
35
/
"
17"
3
4
30"
42"
27"
* At depth indicated
124184-01B
INSTALLATION
Continued
Btu/Hr Input
Natural Gas
Propane/LP Gas
50,000
60,000
55,000
65,000
70,000
MINIMUM
FLUE SIZE
14"
18"
15
/
"
18"
1
2
18"
18"
Figure 2 - Technical Information Charts
www.desatech.com
CHECK GAS TYPE
Use only natural gas. If your gas supply is
not natural gas, you must convert the appli-
ance to propane/LP. Follow the instructions
on page 8.
If the fireplace does not have a gas supply
shutoff valve, one must be installed.
VENTING SPECIFICATIONS FOR
INSTALLATION
The fireplace chimney flue and vent must be
drafting properly. To check the vent for proper
drafting: Light a tightly rolled newspaper on
one end and place it at the inside front edge
of the fireplace. Observe the smoke and be
sure the vent is properly drawing it up the
chimney. If the smoke spills out into the room,
extinguish the flame and remove any obstruc-
tion until proper venting is achieved.
The chimney flue damper must be fixed open
to provide a minimum of 81 sq. in. of free air
opening during operation of this log set. A
multipurpose damper clamp is provided to fix
the damper in position.
The minimum flue sizes shown in Figure 2
are based on a 6' chimney height using round
pipe. Your minimum flue size will vary based
on input rate and chimney height. Refer to the
National Fuel Gas Code ANSI Z223.1/NFPA
54, Section 6.6, for details.
Btu/Hr Input
In.
40,000
0.116
50,000
0.120
45,000
0.116
55,000
0.138
60,000
0.1405
FUEL INLET
PRESSURE
8" dia.
NG 7" W.C.
8" dia.
9" dia.
LP 11" W.C. 14" W.C.
Burner Orifice
Natural
Propane/LP
Num.
In.
32
0.081
31
0.082
32
0.082
29
0.086
28
0.089
SPECIFICATIONS (W.C.)
MANIFOLD
PRESSURE
Min.
Max.
10.5"
W.C.
Num.
46
45
45
44
43
6
10
5
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