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55173-F 5
Figure 2 - Typical Two-Sided Fireplace
Installation
INTRODUCTION
Models GL36ST/P and GL36STE/EP are decora-
tive gas appliances that use a millivolt gas control
and piezo pilot or an electronic gas control valve
with an electronic ignition system respectively.
These systems require a 6", B-type venting system
for operation.
The 6" B-type vent is not supplied by DESA.
For installation guidelines, check your B-vent
instructions.
WARNING: This gas appli-
ance must not be connected to
a chimney flue servicing a solid
fuel burning appliance.
Models GL36ST and GL36STE are smooth face
units for natural gas only. The GL36STP and
GL36STEP are smooth face units for propane/LP
gas only. To determine which type of gas your unit
is approved and tested for, check the rating plate on
the lift-out plate located inside the firebox under
the access panel.
BEFORE YOU BEGIN
Before beginning the installation of your appli-
ance, read these instructions through completely.
This DESA appliance and its approved compo
-
nents are safe when installed according to this
installation manual and are operated as recom-
mended by DESA. Unless you use DESA approved
components tested for this appliance, YOU MAY
CAUSE A FIRE HAZARD!
The DESA warranty will be voided by and DESA dis
-
claims any responsibility for the following actions :
A) Modification of the appliance or any of the
components manufactured by DESA unless
otherwise permitted by DESA.
B) Use of any component part not approved by
DESA in combination with this appliance.
C) Installation and/or operation in a manner other
than instructed in this manual.
D) The burning of anything other than the type of
gas approved for use in this gas appliance.
This appliance, when installed, must be electrically
grounded in accordance with local codes or, in the
absence of local codes, with the National Electri
-
cal Code, ANSI/NFPA 70-1987 and the CSA C22.1
Canadian Electrical Code for Canada.
The installation must conform with local codes
or, in the absence of local codes, with the current
National Fuel Gas Code, ANSI Z223.1/NFPA 54
or with the current CAN/CGA B149 Installation
Codes for Canada.
This appliance complies with ANSI Z21.50B-1990
and CAM/CGA-2.22-M89 as a Vented Gas Ap
-
pliance and is listed and tested by the Omni Test
Laboratories.
WARNING: Installation of
this appliance should be done
by a qualified service person
well trained in the installation
of such appliances. You will
also need a building permit from
your local Building and Safety
Commissioner before installing
this appliance; otherwise your
insurance company may not
cover this appliance.
NOTICE: This appliance is not
intended to be used as a primary
source of heat.
SELECTING LOCATION
To determine the safest and most efficient location
for your appliance, you must take into consider-
ation the following guidelines:
1. The location must allow for proper clearances
(see Clearances, page 6). Note: This decora
-
tive appliance is not designed for outdoor
installation.
2. The location should be in a place where drafts,
air conditioning ducts, windows or doors will
not affect fireplace heat output.
3. A location that avoids the cutting of joists
or roof rafters will make installation easier.
Figure 2 shows a typical two-sided fireplace
installation.
IMPORTANT: All fireplace openings must be
located at least 3 feet from facing wall or com
-
bustible material.
Existing
Side
Wall
4" From Opening to
Perpendicular Wall
Projected
Wall