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INSTALLATION
4
Flue Opening Specifications
Check Gas Type
Venting Specifications for Installation
INSTALLATION
WARNING: The Massachusetts State Board re-
quires all installations be performed by a Licensed
Plumber or Gas Fitter. Massachusetts state code re-
quires all vent dampers be welded open or removed.
CAUTION: Do not remove the data plates attached
to the burner pan. The data plates contain important
warranty and safety information.
WARNING: Before installing in a solid fuel burn-
ing fireplace, the chimney flue and firebox must be
cleaned of soot, creosote, ashes and loose paint by
a qualified chimney cleaner. Creosote will ignite if
highly heated. A dirty chimney flue may create and
distribute soot within the house. Inspect chimney
flue for damage.
NOTICE: Installation, service, and repair of this appli-
ance must be performed by a qualified installer, ser-
vice agency, company or gas supplier experienced
with this type of gas appliance. Only factory autho-
rized components listed in these instructions may be
used in accordance with the manufacturer's instruc-
tions 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 noncom-
bustible 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.
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Btu Input
Natural
DESCRIPTION
Gas
18" Single Burner
50,000
24" Single Burner
60,000
18" Dual Burner
55,000
24" Dual Burner
65,000
30" Dual Burner
70,000
MINIMUM FIREBOX SIZES
LOG FRONT BACK
SIZE WIDTH WIDTH* DEPTH HEIGHT FLUE SIZE
18"
34"
16"
24"
35
3
/
"
17"
4
30"
42"
27"
*At depth indicated
SPECIFICATIONS (W.C.)
FUEL INLET
PRESSURE
Min.
NG
7
LP
11
Figure 2 - Technical Information Charts
CHECK GAS TYPE
Use only natural gas. If your gas supply is not natural gas, you must
convert the appliance to propane/LP. Follow the instructions on
pages 6 and 7.
If the fireplace does not have a gas supply shut-off 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 obstruction 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.
Burner Orifice
Btu Input
Natural
Propane/LP
Propane/LP
Gas
In.
Num.
In.
40,000
.116
32
.081
50,000
.120
31
.082
45,000
.116
32
.082
55,000
.138
29
.086
60,000
.1405 28
.089
MINIMUM
14"
18"
8" diam.
15
1
/
"
18"
8" diam.
2
18"
18"
9" diam.
MANIFOLD
PRESSURE
Max.
10.5
6
14
10
Num.
46
45
45
44
43
901268-01D
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