Desa VC42N SERIES Quick start guide

FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch
• Do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire de-
partment.
WARNING: Improper instal-
lation, adjustment, altera-
tion, service or maintenance
can cause injury or property
damage. Refer to this manual
for correct installation and
operational procedures.
For assistance or additional
information consult a quali-
fied installer, service agency
or the gas supplier.
This appliance may be installed in an aftermarket*, permanently located, manufactured (mo-
bile) home, where not prohibited by state or local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This appliance
is not convertible for use with other gases, unless a certified kit is used.
WARNING: If the information in this manual is not followed
exactly, a fire or explosion may result causing property dam-
age, personal injury or loss of life.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Installation and service
must be performed by a
qualified installer, service
agency or the gas supplier.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
DIRECT-VENT FIREPLACE
OWNER’S OPERATION AND
INSTALLATION MANUAL
Save this manual for future reference.
For more information, visit www.desatech.com
NATURAL GAS MODELS (V)VC42N SERIES
PROPANE/LP GAS MODEL (V)VC42P SERIES

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SAFETY INFORMATION
WARNING: This product contains and/or generates
chemicals known to the State of California to cause
cancer or birth defects or other reproductive harm.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate or
service this fireplace. Improper use of this fireplace
can cause serious injury or death from burns, fire,
explosions, electrical shock and carbon monoxide
poisoning.
DANGER: Carbon monoxide poisoning may lead
to death!
This fireplace must be installed by a qualified (certified or licensed)
service person. It has a sealed gas combustion chamber that uses a
coaxial pipe (pipe within a pipe and having the same center) venting
system. It brings in fresh air for combustion through the outer pipe and
combustion gases are exhausted through the inner pipe. If the glass
door assembly and venting pipe are not properly seated, connected
and sealed, carbon monoxide leakage (spillage) can occur.
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoning resemble the flu, with headaches, dizziness or nausea.
If you have these signs, the fireplace may not have been installed
properly. Get fresh air at once! Have fireplace inspected and ser-
viced by a qualified service person. Some people are more affected
by carbon monoxide than others. These include pregnant women,
people with heart or lung disease or anemia, those under the influ-
ence of alcohol and those at high altitudes.
WARNING: Any change to this fireplace or its
controls can be dangerous.
1. This appliance is only for use with the type of gas indicated on
the rating plate. This appliance is not convertible for use with
other gases unless a certified kit is used.
2. For propane/LP fireplace, do not place propane/LP supply
tank(s) inside any structure. Locate propane/LP supply tank(s)
outdoors. To prevent performance problems, do not use pro-
pane/LP fuel tank of less than 100 lbs. capacity.
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use any phone in
your building
• immediately call your gas supplier from a neighborʼs phone.
Follow the gas supplier's instructions
• if you cannot reach you gas supplier, call the fire department.
4. Never install the fireplace
• in a recreational vehicle
• in windy or drafty areas where curtains or other combustible
(flammable) objects can make contact with the fireplace
front
• in high traffic areas
TABLE OF CONTENTS
SAFETY INFORMATION
Natural and Propane/LP Gas: Natural and propane/LP gases are
odorless. An odor-making agent is added to the gas. The odor helps
you detect a gas leak. However, the odor added to the gas can fade.
Gas may be present even though no odor exists.
Make certain you read and understand all warnings. Keep this
manual for reference. It is your guide to safe and proper operation
of this fireplace.
TABLE OF CONTENTS
SAFETY INFORMATION ..............................................................2
PRODUCT IDENTIFICATION ......................................................3
LOCAL CODES ............................................................................3
PRODUCT FEATURES ................................................................4
PRE-INSTALLATION PREPARATION ..........................................4
LOCATION OF TERMINATION CAP ............................................6
VENTING INSTALLATION INSTRUCTIONS ................................7
FIREPLACE INSTALLATION .....................................................16
OPERATING FIREPLACE ..........................................................23
INSPECTING BURNERS ...........................................................26
CLEANING AND MAINTENANCE ..............................................27
TROUBLESHOOTING ...............................................................28
REPLACEMENT PARTS ............................................................31
SPECIFICATIONS ......................................................................31
SERVICE HINTS ........................................................................31
TECHNICAL SERVICE ..............................................................31
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ........ 32
ACCESSORIES .........................................................................36
OWNER'S REGISTRATION FORM ...........................................37
WARRANTY INFORMATION ....................................... Back Page

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SAFETY INFORMATION
Continued
PRODUCT IDENTIFICATION
Figure 1 - Direct-Vent Fireplace with Millivolt Ignition
LOCAL CODES
Install and use fireplace with care. Follow all local codes. In the
absence to local codes, use the current National Fuel Gas Code
ANSI Z223.1/NFPA 54* (USA) or the current CSA-B149.1 Instal-
lation Code (Canada).
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
SAFETY INFORMATION
PRODUCT IDENTIFICATION
LOCAL CODES
Glass
Door
Assembly
Switch Bracket for
Optional Remote and
Blower
Control
Valve with
Piezo Ignitor
Log
Set
Lava
Rock
Glowing
Embers
Upper Louver
Panel
Lower
Louver
Panel
Flue Collar
Nailing
Flange
Burner
Assembly
5. This fireplace reaches high temperatures. Keep children and
adults away from hot surfaces to avoid burns or clothing igni-
tion. Fireplace will remain hot for a time after shutdown. Allow
surfaces to cool before touching.
6. Carefully supervise young children when they are in the room
with fireplace.
7. Do not modify this fireplace under any circumstances. Any
parts removed for servicing must be replaced prior to operating
fireplace.
8. Turn fireplace off and let cool before servicing, installing or
repairing. Only a qualified service person should install, service
or repair this fireplace. Have fireplace inspected annually by a
qualified service person.
9. You must keep control compartments, burners and circulating
air passages clean. More frequent cleaning may be needed due
to excessive lint and dust from carpeting, bedding material, etc.
Turn off the gas valve and pilot light before cleaning fireplace.
10. Have venting system inspected annually by a qualified service
person. If needed, have venting system cleaned or repaired. See
Cleaning and Maintenance, page 27.
11. Keep the area around your fireplace clear of combustible ma-
terials, gasoline and other flammable vapor and liquids. Do
not run fireplace where these are used or stored. Do not place
items such as clothing or decorations on or around fireplace.
12. Do not use this fireplace to cook food or burn paper or other
objects.
13. Do not use any solid fuels (wood, coal, paper, cardboard, etc.)
in this fireplace. Use only the gas type indicated on fireplace
nameplate.
14. This appliance, when installed, must be electrically grounded
in accordance with local codes or, in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70 or
the Canadian Electrical Code, CSA C22.1.
15. Do not use fireplace if any part has been exposed to or under
water. Immediately call a qualified service person to arrange
for replacement of the unit.
16. Do not operate fireplace if any log is broken.
17. Do not use a blower insert, heat exchanger insert or other ac-
cessory not approved for use with this fireplace.
18. Do not operate fireplace with glass door removed, cracked or
broken.
19. Provide adequate clearances around air openings.

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PRODUCT FEATURES
These are a few facts that can help you understand and enjoy your
direct-vent fireplace:
• The venting system may be routed to the outside of your home
in several ways. It may vent through the roof (vertical) or it may
vent to an outside/exterior wall (horizontal). The vent pipe instal-
lation is very important to allow for proper operation. You must
follow the venting instructions very carefully for either vertical
or horizontal applications.
• This fireplace may be installed in any room of your house provided
all local codes and these installation instructions are followed.
• This fireplace requires a wall switch, hand-held remote or wall
thermostat (millivolt) for operation (see Accessories, page 36).
• This fireplace does not require electricity to operate.
• Only the blower requires electricity if installed and if you plan to
install the blower at a later date, do not forget to wire the outlet
at the bottom of the fireplace when framing.
• A piezo ignitor and ceramic electrode create spark to ignite the
pilot light. It does not require any matches, batteries or any other
sources of ignition to light the pilot.
• Each time you turn on your fireplace, you may notice some
amount of condensation on the inside of the fireplace glass. This
is normal and will disappear after 10-20 minutes of operation.
• Your direct-vent gas fireplace system (fireplace and venting) is a
balanced and sealed gas operating unit. It requires approximately 10-
20 minutes of operating time before the flame pattern stabilizes.
PRE-INSTALLATION
PREPARATION
LOCATION AND SPACE REQUIREMENTS
Determine the safest and most efficient location for your DESA
direct-vent fireplace. Make sure that rafters and wall studs are not
in the way of the venting system. Choose a location where the heat
output is not affected by drafts, air conditioning ducts, windows
or doors. Figure 2 shows some common locations. Be aware of all
restrictions and precautions before deciding the exact location for
your fireplace and termination cap.
When deciding the location of your fireplace, follow these rules:
• Do not connect this fireplace venting to a chimney flue serving
a separate solid-fuel burning fireplace or appliance.
• Due to high temperatures, do not locate this fireplace in high traffic
areas, windy or drafty areas or near furniture or draperies.
• Proper clearances must be maintained.
• If your fireplace is to be installed directly on carpeting, vinyl tile
or any combustible material other than wood, it must be installed
on a metal or wood panel extending the full width and depth of
the fireplace. See Figure 3.
• Your fireplace is designed to be used in zero clearance instal-
lations. Wall or framing material can be placed directly against
any exterior surface on the back, sides or top of your fireplace,
except where standoff spacers are integrally attached. If standoff
spacers are attached to your fireplace, these spacers can be placed
directly against wall or framing material. See framing details on
page 5.
• If you plan on installing a television or entertainment center re-
cessed above your fireplace, it is recommended that you maintain
a minimum 18" above top of louver opening.
• When locating termination cap, it is important to observe the
minimum clearances shown in Figure 7, page 6.
• If recessing into a wall, you can avoid extra framing by position-
ing your fireplace against an already existing framing member.
• Do not recess termination cap into a wall or siding.
• You may paint the termination cap with 450ºF (232ºC) heat-
resistant paint to coordinate with the exterior finish.
• There must not be any obstruction such as bushes, garden sheds,
fences, decks or utility buildings within 24" from the front of the
termination cap.
• Do not locate termination cap where excessive snow or ice
build up may occur. Be sure to clear vent termination area after
snow falls to prevent accidental blockage of venting system.
When using snow blowers, do not direct snow towards vent
termination area.
PRODUCT FEATURES
PRE-INSTALLATION PREPARATION
Location and Space Requirements
Figure 2 - Common Fireplace Locations
Flush with a wall
Through exterior wall
enclosed in a chase Corner
installation
Figure 3 - Fireplace Bottom Dimensions
D
RW
FW
23 1/4"
36 1/4"
48"

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A
B
E
F
G
H
DC
Nailing Tabs
8
CLEARANCES
Minimum clearances to combustibles for the fireplace are as follows:
*Back and sides 0"/mm
Perpendicular walls 6" (152mm)
Floor 0"/mm
Ceiling to louver opening 42" (1067mm)
Front 36" (914mm)
Top of Standoffs 0"/mm
Vent (See venting instructions for
specific venting clearances.)
Combustible material with a maximum thickness of 5/8" may be
flush with the top front of fireplace.
* For back and sides of fireplace, do not pack with insulation or
other materials. Zero inch clearance to combustible materials are
for framing purpose only.
NOTICE: This fireplace is intended for use as supple-
mental heat. Use this fireplace along with your primary
heating system. Do not install this fireplace as your
primary heat source. If you have a central heating
system, you may run system’s circulating blower
while using fireplace. This will help circulate the heat
throughout the house. In the event of a power outage,
you can use this fireplace as a heat source.
FRAMING AND FINISHING
Figure 4 shows typical framing of this fireplace. Figure 5 shows fram-
ing for corner installation. All minimum clearances must be met.
PRE-INSTALLATION
PREPARATION
Continued
Figure 4 - Framing Clearances for Installation Against an
Exterior Wall
C
B
A
D
E
F
G
Top of Louver Opening
3
2
1
4
5
6
7
Wall
Figure 5 - Framing Clearances for Corner Installation
Ref. Mantel Depth Ref. Mantel from Top
of Louver Opening
1 14" (356mm) A 16" (406mm)
2 12" (305mm) B 14" (356mm)
3 10" (254mm) C 12" (305mm)
4 8" (203mm) D 10" (254mm)
5 6" (152mm) E 8" (203mm)
6 4" (101mm) F 6" (152mm)
7 2" (51mm) G 4" (101mm)
Figure 6 - Clearances for Combustible Mantels
PRE-INSTALLATION PREPARATION
Clearances
Framing and Finishing
40 1/8"
48 1/4"
25 5/8"
48"
48 1/4"
41 5/8"
21 5/8"58 1/2"
16 3/4"
81 1/2"
13 1/2"
For available accessories for this fireplace, see Accessories on page
36. If you are using a separate combustible mantel piece, refer to
Figure 6 for proper installation height. You can install noncombus-
tible mantels at any height above the fireplace.
Note: Noncombustible mantels may discolor!

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Fixed
Closed Openable Fixed
Closed
Openable
V
V
V
V
VV
V
V
X
X
VX
G
G
J
F
B
B
K
N
H
I
A
N
E
L
D
B
M
A
C
B
V
V
A
G
G
B
TERMINATION CAP AIR SUPPLY INLET GAS METER RESTRICTED AREA
(TERMINATION PROHIBITED)
A = clearance above grade, veranda, porch, deck, or balcony
[*12 inches (30.5mc) minimum]
B = clearance to window or door that may be opened
[12 inches (30.5cm) minimum]
C = clearance to permanently closed window [minimum 12 inches
(30.5cm) recommended to prevent condensation on window]
D = vertical clearance to ventilated soffit located above the terminal
within a horizontal distance of 24 inches (61cm) from the
center-line of the terminal [18 inches (45.7cm) minimum]
E = clearance to unventilated soffit [12 inches (30.5cm) minimum]
F = clearance to outside corner (see below)
G = clearance to inside corner (see below)
H = *not to be installed above a meter/regulator assembly within
36 inches (91.4cm) horizontally from the center-line of the regulator
I = clearance to service regulator vent outlet [*72 inches (182.9cm)
minimum]
J = clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other fireplace [*12 inches (30.5cm)
minimum]
K = clearance to a mechanical air supply inlet [*72 inches (182.9cm)
minimum]
L = † clearance above paved side-walk or a paved driveway located on
public property [*84 inches (213.3cm) minimum]
M = clearance under veranda, porch, deck [*12 inches (30.5cm) minimum ‡]
N = clearance above a roof shall extend a minimum of 24 inches (61cm)
above the highest point when it passes through the roof surface and
any other obstruction within a horizontal distance of 18 inches (45.7cm)
† vent shall not terminate directly above a side-walk or paved driveway which is located between two
single family dwellings and serves both dwellings*
‡ only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*
* as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A.
Note: Local codes or regulations may require different clearances
A = 6" (15.2cm)
Inside Corner
V
B
E
V
B = 6" (15.2cm)
C = Maximum depth of 48" (121.9cm) for
recessed location
D = Minimum width for back wall of
recessed location -
Combustible - 38" (965mm)
Noncombustible - 24" (61cm)
E = Clearance from corner in
recessed location-
Combustible - 6" (15.2cm)
Noncombustible - 2" (5.1cm)
Outside Corner Recessed Location
G
H
G = 12" (30.5cm) minimum clearance
Balcony with No Side Wall
V
J
Combustible &
Noncombustible
H = 24" (61cm)
J = 20" (50.8cm)
Balcony with Perpendicular Side Wall
C
D
C
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
Figure 7 - Minimum Clearances for Termination Cap
LOCATION OF TERMINATION CAP
LOCATION OF TERMINATION CAP

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116236-01A
These models are tested and approved for use with DESA (direct-
vent) pipe components and terminations.
The venting system must terminate on the outside of the structure and
can not be attached to a chimney or flue system serving a separate
solid fuel or gas burning appliance. A direct-vent appliance must have
its own venting system. DO NOT common vent this appliance.
These models are approved to be vented either horizontally through
an outside wall or vertically through a roof or chase enclosure using
the following guidelines:
• When venting system terminates horizontally on an outside
wall, you may install a standoff if the termination cap is to be
installed directly on a combustible finish such as vinyl, wood,
stucco, etc.
• Never run the vent downward as this may cause excessive tem-
peratures which could cause a fire.
• Vent pipe air space clearances to combustibles are 1" on all sides
except on the horizontal sections, which requires 2" clearance
from the top of the pipe. Where the termination cap penetrates
a combustible wall, 1" air space clearance is required.
• Snorkel terminations are required when minimum clearance to
grade cannot be met (see Figure 16 on page 11).
• Have fireplace and selected vent components on hand to help
determine the exact measurements when elbowing or offsetting.
Always use wall firestops when penetrating walls and firestops
when penetrating ceilings or attic spaces.
• Install horizontal venting with a 1/4" rise for every 12" of run
toward the termination.
WARNING: Read all instructions completely and
thoroughly before attempting installation. Failure to
do so could result in serious injury, property damage
or loss of life.
NOTICE: Failure to follow these instructions will void
the warranty.
NOTICE: Do not seal termination cap to vent pipe.
Cap must be removable for vent inspection and
maintenance.
VENTING INSTALLATION
INSTRUCTIONS
NOTICE: Read these instructions completely before
attempting installation.
VENTING INSTALLATION INSTRUCTIONS
Installation Precautions
INSTALLATION PRECAUTIONS
• Wear gloves and safety glasses for protection
• Use extreme caution when using ladders or when on roof
tops
• Be aware of electrical wiring locations in walls and ceilings
The following actions will void the warranty on your venting
system:
• Installation of any damaged venting component
• Unauthorized modification of the venting system (Do not cut
or alter vent components)
• Installation of any component part not manufactured or
approved by DESA
• Installation other than as instructed by these instructions
WARNING: This gas fireplace and vent assembly
must be vented directly to the outside. The venting
system must NEVER be attached to a chimney serv-
ing a separate solid fuel burning appliance. Each
direct-vent gas appliance must use a separate vent
system. Do not use common vent systems.
WARNING: Vent pipe air space clearances to com-
bustibles are 1" on all sides except on the horizontal
sections, which require 2" clearances from the top of
the pipe. Where the termination cap penetrates a com-
bustible wall, 1" air space clearance is required.

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INSTALLATION PLANNING
There are two basic types of direct-vent installation:
• Horizontal Termination
• Vertical Termination
Horizontal Termination Installation
IMPORTANT: Horizontal square terminations require only in-
ner portion of wall firestop. Horizontal installations using round
termination require exterior portion of wall firestop (see Figure
14, page 10).
1. Set the fireplace in its desired location and determine the route
your horizontal venting will take. Do not secure the fireplace
until all venting has been installed. Some installations require
sliding the fireplace in and out of position to make final venting
connections. Figures 14 through 18 on pages 10 through 12 show
different configurations for venting with horizontal termination
that will help you decide which application best suits your instal-
lation. Check to see if wall studs or roof rafters are in the path of
your desired venting route. If they are, you may want to adjust
the location of the fireplace.
2. Direct vent pipe sections and components are designed with
special twist-lock connections.
Twist-Lock Procedure: The female ends of the pipes have
locking lugs (indentations). These lugs will slide straight into
matching slots on the male ends of adjacent pipes. Push pipe
sections together and twist one section clockwise approxi-
mately one-quarter turn until the sections are fully locked (see
Figure 8). Note: Horizontal runs of vent must be supported
every three feet. Use wall straps for this purpose.
3. Use a 45° elbow to connect venting system to fireplace flue
collar. The elbow is designed to be twist-locked onto the flue
collar as described in step 2. IMPORTANT: Do not attempt
to alter the configuration of the elbow by cutting, twisting,
bending, etc.
4. Assemble the desired combination of pipe and elbows to the
fireplace flue collar. If there are long portions of venting run,
pre-assembled pipe sections may be installed as subassemblies
for convenience.
5. Carefully determine the location where the vent pipe assembly
will penetrate the outside wall. The center of the hole should
line up with the center-line of the horizontal vent pipe. Mark the
wall for a 10 3/4" x 10 3/4" square hole. Cut and frame the square
hole in the exterior wall where the vent will be terminated. If
the wall being penetrated is constructed of noncombustible
material, such as masonry block or concrete, a 8 1/2" hole with
zero clearance is acceptable (see Figure 9).
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning
Figure 8 - Vent Pipe Connections
Female
Locking
Lugs
Male
Slots
(Framing
Detail)
10 3/4"
(273 mm)
10 3/4" Inside Framing
(273 mm)
10 3/4"
(273 mm)
8 1/2"
(216 mm)
Vent Opening
Combustible Wall
Vent Opening
Noncombustible Wall
Figure 9 - Vent Opening Requirements
Center
of Hole

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116236-01A
WARNING: Do not recess vent termination into
any wall. This will cause a fire hazard.
6. Noncombustible Exterior Wall: Position the horizontal vent
cap in the center of the 8 1/2" round hole and attach to the
exterior wall with four wood screws provided. Before attach-
ing the vent cap to exterior wall, run a bead of non-hardening
mastic (pliable sealant) around the outside edges to make a seal
between it and the outside wall. Note: The four wood screws
provided should be replaced with appropriate fasteners for
stucco, brick, concrete or other types of sidings.
Combustible Exterior Wall: For vinyl siding, stucco or wood
exteriors, a siding standoff may be installed between the vent
cap and exterior wall. The siding standoff prevents excessive
heat from damaging the siding materials. Siding material
must be cut to accommodate standoff. Bolt the vent cap to the
standoff. Apply non-hardening mastic around outside edge of
standoff. Position the standoff/cap assembly in the center of
the 10 3/4" square hole and attach to exterior wall with wood
screws provided (see Figure 11). The siding standoff must sit
flush against the exterior fascia material.
7. Combustible Exterior Wall Only: Slide the wall firestop over
the vent pipe before connecting horizontal run to vent cap (see
Figure 12).
8. Carefully move fireplace, with vent assembly attached, toward
wall and insert vent pipe into horizontal termination. The pipe
overlap should be a minimum of 11/4" (see Figure 13, page 10)..
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
Figure 10 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Wood Screw
Vent Cap
Figure 11 - Installing Siding Standoff (Combustible
Exterior Wall)
Vent Cap
(Horizontal
Termination)
Interior Wall
Surface
Wall
Firestop
Horizontal
Vent Pipe
Figure 12 - Connecting Vent Cap with Horizontal Vent Pipe
Screw
Cut Siding Away
to Fit Standoff
Wood Screw
Screws
Standoff
Vent Cap
Apply Mastic
to All Four Sides

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10
Horizontal High
Wind Square
Termination
Wall Firestop
45° Elbow
Figure 14 - Horizontal Termination Configuration for Square or
Round Terminations
45° Elbow
Wall
Firestop
Horizontal
Round
Termination
Exterior Portion of
Wall Firestop (Round
Termination Only)
GROUND FLOOR INSTALLATION
Recommended Applications:
• Installation using cabinet surrounds
• Through the wall using round or square termination
(up to 12" horizontal pipe)
• NOT FOR CORNER INSTALLATION
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
Adjustable
Pipe 12" Max.
Horizontal Termination Configurations
Figures 14 through 18 show different configurations and alternatives
for venting with horizontal termination. Each figure includes a chart
with critical minimum and maximum dimensions which MUST be
met. IMPORTANT: Remember that a horizontal run of venting must
have a 1/4" rise for every 12" of run toward the termination.
NOTICE: Do not seal termination cap to vent pipe.
Cap must be removable for vent inspection and
maintenance.
Figure 13 - Typical Horizontal Termination Cap Mounting with
Additional Siding Standoff Installed
Siding Standoff
Screws
High Wind
Termination
Apply Mastic to
Outside Edge of
Standoff
Exterior Wall
with Vinyl Siding
10 3/4" x 10
3/4" Framed
Opening
Maintain 1"
Minimum Air
Space Around
Outer Pipe When
Penetrating a Wall
Minimum Pipe
Overlap 11/4"
Wall
Firestop
Direct Vent
Pipe
WARNING: Never run vent downward as this may
cause excessive temperatures which could cause a
fire. Operation of improperly installed and maintained
venting system could result in serious injury, property
damage or loss of life.
9. Combustible Exterior Wall Only: Slide wall firestop against
interior wall surface and attach with screws provided. See
Figure 13 for horizontal termination details.
10. Place fireplace into position and shim with noncombustible ma-
terial if needed. Nail or screw side flanges to framing to secure
unit in place. IMPORTANT: Make sure fireplace is level before
securing. If fireplace is not level it will not work properly.
Round Termination
Square Termination
Vertical (V) Horizontal (H)
32 3/4" min. 17" max.

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Figure 15 - Horizontal Termination Configuration for Corner Installation Using One 90° Elbow
Square
Termination
Wall
Firestop
Not to Exceed
(H) Limits
As Required for (V)
See Chart for Pipe
Section Required
45°
Elbow
90° Elbow
90° Elbow
Square
Termination
Wall
Firestop
45° Elbow
12" Minimum
CORNER INSTALLATION
Recommended Applications:
• Corner ground floor installation
• Ground floor installation where pipe vents horizontally through wall
(over 12" horizontal pipe)
• Basement installation where one foot clearance from ground to
termination is possible
SNORKEL TERMINATION INSTALLATION
Recommended Applications:
• Installations requiring a vertical rise on building exterior
• Any installation using snorkel termination to achieve one foot above ground
Snorkel terminations are available for installations requiring a vertical rise on the exterior of the building. If install-
ing snorkel termination below grade, you must provide proper drainage to prevent water from entering snorkel
termination (see Figure 16). Do not back fill around snorkel termination.
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
12"
Minimum
Snorkel Termination
12"
Minimum
Snorkel
Termination
Wall
Firestop
90° Elbow
45°
Elbow
Figure 16 - Snorkel Termination Configurations for Below Ground Installation
Required
Vertical (V) Vertical Pipe Horizontal (H)
*43 1/2" min. None 30" max.
54 1/2" min. 1 ft. 48" max.
66 1/2" min. 2 ft. 60" max.
78 1/2" min. 3 ft. 84" max.
90 1/2" min. 4 ft. 20' max.
* Ground Floor Corner Venting
Not to Exceed
(H) Limits
12"
Minimum
Snorkel
Termination
Adequate
Drainage

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12
Venting with Two 90° Elbows
Vertical (V) Horizontal (H1) +
Horizontal (H2)
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
20' max. 20' max.
Figure 18 - Horizontal Termination Configuration for Venting Using Two 90° Elbows with Termination at 90° with Fireplace
Venting with Two 90° Elbows
Vertical (V) Horizontal (H1) Horizontal (H1) +
Horizontal (H2)
5' min. 2' max. 6' max.
6' min. 4' max. 12' max.
7' min. 6' max. 18' max.
8' min. 8' max. 20' max.
20' max. 8' max. 20' max.
Figure 17 - Horizontal Termination Configuration for Venting Using Two 90° Elbows
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
45° Elbow
45° Elbow
HORIZONTAL SYSTEM INSTALLATION USING TWO 90°
ELBOWS
The following configurations show the minimum vertical rise re-
quirements for a horizontal system using two 90° elbows.

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INSTALLATION FOR VERTICAL TERMINATION
Note: Vertical restrictor must be installed in all vertical installa-
tions.
1. Determine the route your vertical venting will take. If ceiling
joists, roof rafters or other framing will obstruct the venting
system, consider an offset (see Figure 19) to avoid cutting
load bearing members. Note: Pay special attention to these
installation instructions for required clearances (air space)
to combustibles when passing through ceilings, walls, roofs,
enclosures, attic rafters, etc. Do not pack air spaces with insu-
lation. Also note maximum vertical rise of the venting system
and any maximum horizontal offset limitations.
2. Set the fireplace in desired location. Drop a plumb line down
from the ceiling to the position of the fireplace exit flue. Mark
the center point where the vent will penetrate the ceiling. Drill
a small locating hole at this point.
Drop a plumb line from the inside of the roof to the locating
hole in the ceiling. Mark the center point where the vent will
penetrate the roof. Drill a small locating hole at this point.
VENTING INSTALLATION
INSTRUCTIONS
Continued
Flat Ceiling Installation
1. Cut a 10 3/4" square hole in the ceiling using the locating hole as
a center point. The opening should be framed to 10 3/4"x10 3/4"
(273mm x 273mm) inside dimensions, as shown in Figure 9 on
page 8 using framing lumber the same size as the ceiling joists.
If the area above the ceiling is an insulated ceiling or a room,
nail firestop from the top side. This prevents loose insulation
from falling into the required clearance space. Otherwise, install
firestop below the framed hole. The firestop should be installed
with no less than three nails per side (see Figure 20).
Figure 19 - Offset with Wall Strap and 45° Elbows
Figure 20 - Installing Firestop
If area above is not a room, install
firestop below framed hole.
If area above is a room or
insulated area, install firestop
above framed hole.
2. Assemble the desired lengths of pipe and elbows necessary to
reach from the fireplace flue up through the firestop. Be sure all
pipe and elbow connections are fully twist-locked (see Figure
8, page 8).
3. Cut a hole in the roof using the locating hole as a center point.
(Cover any exposed open vent pipes before cutting hole in roof.)
The 10 3/4"x10 3/4" hole must be measured on the horizontal;
actual length may be larger depending on the pitch of the roof.
There must be a 1" clearance from the vent pipe to combustible
materials. Frame the opening as shown in Figure 9, page 8.
4. Connect a section of pipe and extend up through the hole.
Note: If an offset is needed to avoid obstructions, you must
support the vent pipe every 3 feet. Use wall straps for this
purpose (see Figure 19). Whenever possible, use 45° elbows
instead of 90° elbows. The 45° elbow offers less restriction to
the flow of the flue gases and intake air.
5. Place the flashing over the pipe section(s) extending through
the roof. Secure the base of the flashing to the roof and framing
with roofing nails. Be sure roofing material overlaps the top
edge of the flashing as shown in Figure 19. There must be a
1" clearance from the vent pipe to combustible materials.
6. Continue to add pipe sections until the height of the vent cap
meets the minimum building code requirements described in
Figure 7 on page 6. Note: You must increase vent height for
steep roof pitches. Nearby trees, adjoining rooflines, steep
pitched roofs and other similar factors may cause poor draft or
down-drafting in high winds. Increasing the vent height may
solve this problem.
7. Twist-lock the vent cap onto the last section of vent pipe.
Note: If the vent pipe passes through any occupied areas above the
first floor, including storage spaces and closets, you must enclose
pipe. You may frame and sheetrock the enclosure with standard
construction material. Make sure and meet the minimum allow-
able clearances to combustibles. Do not fill any of the required air
spaces with insulation.
VENTING INSTALLATION INSTRUCTIONS
Installation for Vertical Termination
45° Elbow
Wall Strap
Roof Flashing
Ceiling Firestop

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14
VENTING INSTALLATION
INSTRUCTIONS
Continued
Vertical Termination Configurations
Figures 21 through 24 show four different configurations for verti-
cal termination.
Venting with Two 90° Elbows
Vertical (V) Horizontal (H1) +
Horizontal (H2)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 21 - Vertical Venting Configuration Using Two 90°
Elbows with Two Horizontal Runs (Vertical Round High Wind
Termination Shown)
Venting with One 90° Elbow
Vertical (V) Horizontal (H)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 22 - Vertical Venting Configuration Using One 90° Elbow
(Vertical Round High Wind Termination Shown)
Note: Install restrictor
into inner collar of
fireplace as shown.
Venting with Two 90° Elbows
Vertical (V1) Horizontal (H)
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
Note: Vertical (V1) + Vertical (V2) = 40' max.
Figure 23 - Vertical Venting Configuration Using Two 90° Elbows
(Vertical Round High Wind Termination Shown)
VENTING INSTALLATION INSTRUCTIONS
Installation for Vertical Termination (Cont.)
Note: Install
restrictor into inner
collar of fireplace
as shown.
45° Elbow
Note: Install
restrictor into inner
collar of fireplace
as shown.
45° Elbow
45° Elbow

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VENTING INSTALLATION
INSTRUCTIONS
Continued
Vertical Venting
V = 40' max.
Figure 24 - Vertical Venting Configuration With No Horizontal
Run (Vertical Round High Wind Termination Shown)
Note: Install restrictor
into inner collar of
fireplace as shown.
45° Elbow
HIGH ALTITUDE INSTALLATION
Your DESA direct-vent fireplace has been tested and approved for
elevations from 0-2000 feet (USA) and elevations from 0-4500
feet (Canada) .
When installing this fireplace at an elevation above 2000 feet (in
the USA), you may need to decrease the input rating by changing
the existing burner orifice to a smaller size. Reduce input 4% for
each 1000 feet above sea level. Check with your local gas company
for proper orifice size identification.
When installing this fireplace at an elevation above 4500 feet (in
Canada), check with local authorities.
Consult your local gas company to help determine the proper orifice
for your location.
For assistance with any high altitude installation contact DESAʼs
Customer Service Department at 1-866-672-6040.
VENTING INSTALLATION INSTRUCTIONS
Installation for Vertical Termination (Cont.)
High Altitude Installation

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16
CHECK GAS TYPE
Use proper gas type for the fireplace unit you are installing. If you have
conflicting gas types, do not install fireplace. See retailer where you
purchased the fireplace for proper fireplace according to your gas type
or to purchase gas conversion kit (see Accessories, page 36).
INSTALLING OPTIONAL BLOWER
ACCESSORIES
NOTICE: If installing blower in an existing fireplace
with gas connections, shut off gas supply and dis-
connect heater from gas supply. Contact a qualified
service person to do this.
WARNING: If there is a duplex electrical outlet
installed in the right side of the bottom of the fireplace
base area, be sure that the electrical power to the outlet
is turned off before proceeding with blower installation.
Failure to do this may result in serious injury.
.
FIREPLACE INSTALLATION
Model BK Installation
Follow all instructions provided in the blower accessory kit.
1. Attach the power cord to the blower motor by firmly pushing the
two female terminals at the end of the power cord onto the two
spade terminals on the blower motor (see Figure 25).
2. Attach green ground wire from power cord to blower hous-
ing using screw provided (see Figure 25). Tighten screws
securely.
3. Place the blower against the lower rear wall of the firebox outer
wrapper with the exhaust port directed upward. The blower will
fit inside the back opening and be held in position against the
back wall by the magnets (see Figure 25).
4. Be certain that all wire terminals are securely attached to ter-
minals on blower motor and that the screw retaining the green
ground wire is tight.
Figure 25 - Blower Model BK
Magnetic
Strips
Exhaust Port
Screw
Green Ground Wire
Spade Terminals
Side View
Lower Firebox
Cavity
Blower
Location
PARTS LIST FOR VENTING KITS AND
COMPONENTS
DESA (5"/8") Pipe & Vent Kits
Number Description
P58-6 6" Section Double Wall Pipe, Galvanized
P58-12 12" Section Double Wall Pipe, Galvanized
P58-24 24" Section Double Wall Pipe, Galvanized
P58-36 36" Section Double Wall Pipe, Galvanized
P58-48 48" Section Double Wall Pipe, Galvanized
PA58-712 Adjustable 7"-12" Section Double Wall Pipe,
Galvanized
E58-45 45° Elbow, Galvanized
E58-90 90° Elbow, Galvanized
VKG-58 Ground Floor Vent Kit, Galvanized (Includes: 45° El-
bow, 7"-12" Adjustable Pipe, Wall Firestop, Horizontal
Square Termination, 16 Screws)
VKB-58 Basement Vent Kit, Galvanized (Includes: 45° Elbow,
7"-12" Adjustable Pipe, Wall Firestop, Horizontal
Square Termination, 4' Pipe, 90° Elbow, 20 Screws)
VKS-58 Snorkel Vent Kit, Galvanized (Includes: 45° Elbow,
7"-12" Adjustable Pipe, Wall Firestop, 36" Snorkel
Termination, 4' Pipe, 1' Pipe, 90° Elbow, 26 Screws)
VKR-58 Roof Vent Kit, Galvanized (Includes: 45° Elbow, 7"-12"
Adjustable Pipe, Flue Restrictor, Vertical High Wind
Termination, 2' Pipe, 4' Pipe, Wall Firestop, Storm
Collar, Roof Flashing [0/12 - 6/12], 26 Screws)
VKC-58 Corner Vent Kit, Galvanized (Includes 45° Elbow,
7"-12" Adjustable Pipe, Wall Firestop, Horizontal
Termination, 6" Pipe, 90° Elbow, 18 Screws)
HTK-58 Horizontal Round Termination Kit (Includes Round
Termination, Wall Firestop, 45° Elbow)
HT-58 Horizontal Round Termination, Galvanized
HTS-58 Horizontal Square Termination, Galvanized
HTKS-58 Horizontal Square Termination Kit (Includes: Square
Termination, Wall Firestop, 45° Elbow)
VT-58 Vertical Round Termination, Galvanized
ST-58-14 14" Snorkel Termination, Galvanized
ST-58-36 36" Snorkel Termination, Galvanized
SC-58 Storm Collar, Galvanized
WF-58 Wall Firestop, Galvanized
RF-58-6 Roof Flashing - 0 to 6/12 Pitch, Galvanized
RF-58-12 Roof Flashing - 6/12 to 12/12 Pitch, Galvanized
VR-58 Vertical Restrictor, Galvanized
S-58 Vinyl Siding Standoff, Galvanized
WS-58 Wall Strap
CS-58 Cathedral Ceiling Support
FP-58 Firestop Plate
SF-58 Stucco Flashing - For use with HTS-58
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Parts List for Venting Kits and Components
FIREPLACE INSTALLATION
Check Gas Type
Installing Optional Blower Accessories

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116236-01A
Figure 26 - Attaching Speed Control to Firebox
Speed Control
Control
Shaft
Locknut
Control
Knob
Switch
Bracket
Blower
Plug-In
FIREPLACE INSTALLATION
Installing Optional Blower Accessories (Cont.)
Duplex Outlet
(Located underneath
firebox floor against
lower right outside wall)
5. Mount speed control box to switch bracket by placing the plastic
control shaft forward through the round opening in the switch
bracket (see Figure 26).
6. While supporting speed control, secure control shaft with lock nut
by pushing and turning lock nut with pliers clockwise until it is
tight against front panel. Place control knob provided on shaft.
7. Turn on power to duplex outlet if previously turned off per the
warning in column 2, page 16.
8. Plug in blower power cord.
a. If your firebox is installed as a freestanding unit with an
accessory mantel, determine whether the power cord will
exit the left side or the right side of the firebox. Route power
cord through exit hole and plug the power cord into a wall
receptacle near the firebox.
b. If your firebox installation is recessed and/or pre-wired, plug
the power cord into the duplex outlet provided. Refer to your
firebox ownerʼs manual for instructions on wiring the duplex
outlet.
CAUTION: Never touch the blower wheel while
in operation.
9. Check to make sure that the power cord is completely clear of the
blower wheel and that there are no other foreign objects in blower
wheel. Turn blower on and check for operation. Turn blower off
by turning knob fully counterclockwise before continuing.
10. Peel off the backing paper and stick the supplied wiring diagram
decal on the firebox bottom approximately 12" in front of the
blower (see Figure 27).
Variable
Fan Switch
White
White
Black
Green
On
110/115
V.A.C.
Blower
Motor
Black
Black
Black
Off
Figure 27 - Location of Wiring Diagram Decal (Model May Vary
From Illustration)
Wiring Diagram Decal
12" in Front of Blower
FIREPLACE INSTALLATION
Continued
Thermodisc
Figure 28 - Blower Model BKT
Air Flow Direction
Route BKT
Blower Through
This Area
Magnets
Blower
Location
Side View Firebox Bottom
Black
Wire
Phillips
Screw
Blue Wire
Ring Terminal
on Green Wire
White Wire
Thermal Switch
Thermal
Switch
Bracket
Power Cord
Air Flow
Direction
Magnetic
Strips
Model BKT Installation
Note: When installing the BKT thermostatically-controlled blower,
you must first secure the thermal switch bracket to the blower if it
has not already been factory installed.
1. Place the green ground wire with ring terminal between the
bottom hole on the thermal switch bracket and the top ear hole
on the blower assembly. Insert the phillips screw into all three
pieces and tighten securely (see Figure 28).
2. Connect wire harness and power cord terminals. Connect the
blue jumper wire to the blower motor terminal and the right
side terminal of the thermal switch. Connect the black wire to
the left side of the thermal switch and the white wire to the
other remaining blower motor terminal.
Note: The power cord outer insulation sleeve may have to be
stripped slightly to allow enough wire length to reach and make
all connections. DO NOT trim excessive length away. Just enable
enough to make all connections securely.
3. Place the blower against the lower rear wall of the firebox outer
wrapper with the exhaust port directed upward and the thermodisc
positioned up near the fireplace bottom. The thermodisc must
be oriented near the fireplace bottom as shown in Figure 28 in
order to sense temperature and properly operate. The blower
will be held in position against the back wall by the magnets
incorporated onto the blower housing (see Figure 28).
4. Be certain that all wire terminals are securely attached to ter-
minals on blower motor and thermal switch and that the screw
for the thermodisc bracket and green ground wire is tight.

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18
Figure 29 - Blower Wiring Diagram for Thermostat-Controlled
Models
Blower Wiring Diagram
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
Blue
Variable
Fan Switch Fan Switch
(N.O.)
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off 1
2Black
INSTALLING GAS PIPING TO FIREPLACE
LOCATION
WARNING: A qualified service person must con-
nect fireplace to gas supply. Follow all local codes.
CAUTION: For propane/LP units, never connect
fireplace directly to the propane/LP supply. This
heater requires an external regulator (not supplied).
Install the external regulator between the fireplace
and propane/LP supply.
Installation Items Needed
Before installing fireplace, make sure you have the items listed
below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas connector (if allowed by local
codes)
* A CSA design-certified equipment shutoff valve with 1/8" NPT tap
is an acceptable alternative to test gauge connection. Purchase the
CSA design-certified equipment shutoff valve from your retailer.
For propane/LP connection only, the installer must supply an ex-
ternal regulator. The external regulator will reduce incoming gas
pressure. You must reduce incoming gas pressure to between 11
and 14 inches of water. If you do not reduce incoming gas pressure,
fireplace regulator damage could occur. Install external regulator
with the vent pointing down as shown in Figure 30. Pointing the
vent down protects it from freezing rain or sleet.
Figure 30 - External Regulator with Vent Pointing Down
(Propane/LP Only)
Propane/LP
Supply Tank
External
Regulator
Vent
Pointing
Down
FIREPLACE INSTALLATION
Installing Optional Blower Accessories (Cont.)
Installing Gas Piping to Fireplace Location
FIREPLACE INSTALLATION
Continued
5. Mount the speed control box against the mounting plate provided
in the lower fireplace cavity by placing the plastic control shaft
forward through the round hole (see Figure 26, page 17).
6. While supporting speed control, secure control shaft with lock
nut by pushing and turning lock nut with pliers clockwise until
it is tight against mounting plate. Place control knob provided
on shaft (see Figure 26, page 17).
7. Check to make sure that the power cord is completely clear of the
blower wheel and that there are no other foreign objects in blower
wheel. Also double check all wire leads and make sure wire routing
is not pinched or in a precarious position. Correct accordingly.
8. Turn on power to duplex outlet if previously turned off per the
warning in column 2, page 16.
9. Plug in blower power cord to duplex outlet.
10. The blower will only run when the speed control knob is in the
ON position and the thermal switch senses temperature after the
fireplace begins to heat up. The blower speed can be adjusted by
rotating the control knob. To turn off, turn knob fully counterclock-
wise until it clicks off. If the blower is ON and has been running
with the fireplace operating, the blower will continue to run for a
short time after the fireplace has been turned off. As the thermal
switch cools down, the blower shuts down automatically.
11. Peel off the backing paper and stick the supplied wiring diagram
decal on the firebox bottom approximately 12" in front of the
blower (see Figure 27, page 17).

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FIREPLACE INSTALLATION
Continued
FIREPLACE INSTALLATION
Installing Gas Piping to Fireplace Location (Cont.)
Connecting Fireplace to Gas Supply
Checking Gas Connections
CAUTION: Use only new, black iron or steel pipe.
Internally-tinned copper tubing may be used in certain
areas. Check your local codes. Use pipe of 1/2" diameter
or greater to allow proper gas volume to fireplace. If
pipe is too small, undue loss of volume will occur.
Installation must include an equipment shutoff valve, union and
plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from fireplace (see Figure 31).
IMPORTANT: Install main gas valve (equipment shutoff valve)
in an accessible location. The main gas valve is for turning on or
shutting off the gas to the appliance.
Check your building codes for any special requirements for locating
equipment shutoff valve to fireplaces.
Apply pipe joint sealant lightly to male NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe
could result in clogged fireplace valves.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
We recommend that you install a sediment trap/drip leg in supply
line as shown in Figure 31. Locate sediment trap/drip leg where it
is within reach for cleaning. Install in piping system between fuel
supply and fireplace. Locate sediment trap/drip leg where trapped
matter is not likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into fireplace gas con-
trols. If sediment trap/drip leg is not installed or is installed wrong,
fireplace may not run properly.
Figure 31 - Gas Connection
CSA Design-Certified
Equipment Shutoff Valve
with 1/8" NPT Tap*
3" Minimum
Approved Flexible
Gas Line
Cap Pipe Nipple Tee Joint
Sediment Trap/Drip Leg
Natural - From
Gas Meter (5.5"
W.C. to 10.5"
W.C. Pressure)
Propane/LP
From External
Regulator (11"
W.C. to 14" W.C.
Pressure)
* The CSA design-certified equipment shutoff valve may be supplied
with the appliance or you can purchase it from your retailer.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections ,
internal and external to unit, for leaks after installing
or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for
a leak. Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak. Correct all leaks
at once.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect fireplace and its individual equipment shutoff valve
from gas supply piping system. Pressures in excess of 1/2 psig
(3.5 kPa) will damage fireplace gas regulator.
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
3. Pressurize supply piping system by either opening propane/LP
supply tank valve for propane/LP gas fireplace or opening main
gas valve located on or near gas meter for natural gas fireplace
or using compressed air.
4. Check all joints of gas supply piping system. Apply noncor-
rosive leak detection fluid to all joints. Bubbles forming show
a leak. Correct all leaks at once.
CONNECTING FIREPLACE TO GAS SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• sealant (resistant to propane/LP gas, not provided)
1. Open lower louver door panel by gently pulling forward.
2. Route flexible gas line (provided by installer) from equipment
shutoff valve to fireplace. Route flexible gas supply line through
one of the access holes on side of fireplace.
3. Attach flexible gas line from gas supply to control valve (see
Figure 32).
4. Check all gas connections for leaks. See Checking Gas
Connections.
Figure 32 - Connecting Flexible Gas Line to Millivolt Valve
Flexible Gas Line
Do NOT Kink
Equipment
Shutoff Valve
To Gas Supply
(Natural)
To External
Regulator
(Propane/LP)
Control Valve

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20
Figure 33 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 35 - Checking Gas Joints for Natural Gas Fireplace
Figure 34 - Checking Gas Joints for Propane/LP Gas
Fireplace
Propane/LP
Supply Tank
Gas Valve
Equipment
Shutoff
Valve
Gas
Meter
Gas Valve
Equipment
Shutoff
Valve
FIREPLACE INSTALLATION
Continued
FIREPLACE INSTALLATION
Checking Gas Connections (Cont.)
Installing Optional Wall Mount Switch - GWMS2
Figure 36 - Connecting Wall Swith to Control Valve
To Wall Switch
Accessory
5. Reconnect fireplace and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 33).
2. Pressurize supply piping system by either opening propane/LP
supply tank valve for propane/LP gas fireplace or opening main
gas valve located on or near gas meter for natural gas fireplace
or using compressed air.
3. Check all joints from propane/LP supply tank or gas meter
to equipment shutoff valve (see Figure 34, for propane/LP or
Figure 35, for natural gas). Apply noncorrosive leak detection
fluid to all joints. Bubbles forming show a leak. Correct all
leaks at once.
Pressure Testing Fireplace Gas Connections
1. Open equipment shutoff valve (see Figure 33).
2. Open propane/LP supply tank valve for propane/LP fireplace
or main gas valve located on or near gas meter for natural gas
fireplace.
3. Make sure control knob of fireplace is in the OFF position.
4. Check all joints from equipment shutoff valve to gas valve (see
Figure 34 for propane/LP or Figure 35 for natural gas). Apply
noncorrosive leak detection fluid to all joints. Bubbles forming
show a leak. Correct all leaks at once.
5. Light fireplace (see Operating Fireplace, page 23). Check all
other internal joints for leaks.
6. Turn off fireplace (see To Turn Off Gas to Appliance, page 24).
INSTALLING OPTIONAL WALL MOUNT
SWITCH - GWMS2
1. Connect one terminal of 25 ft. wire for the wall switch to the
TPTH terminal on the valve. Connect remaining wire terminal to
the TH terminal on the valve. Make sure that the wire terminals
are in the positions on the unit as pictured in Figure 36. If wires
are not connected as shown the switch will not work.
2. Route the 25 ft. wire through openings provided on the sides
of the burner system to a convenient location to mount your
switch.
3. Connect one bare wire end to each of the terminals of the
GWMS2 wall switch.
4. Install the wall switch and cover in the wall.