Design Dynamics DVF-36S-N Quick start guide

For more information, visit www.desatech.com
WARNING: If the information in this manual is not fol-
lowed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any other
appliance.
— 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 re
department.
— Installation and service must be performed by a quali-
ed installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance
CONSUMER: Retain this manual for future reference.
DIRECT VENT FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
NATURAL PROPANE/LP
GAS MODELS GAS MODELS
DVF-36S-N DVF-36S-P Stacked Brick/Standard Glass
DVF-36H-N DVF-36H-P Herringbone Brick/Standard Glass
DVF-36SC-N DVF-36SC-P Stacked Brick/Cool Touch Glass
DVF-36HC-N DVF-36HC-P Herringbone Brick/Cool Touch Glass

www.desatech.com 120441-01A2
SAFETY INFORMATION
TABLE OF CONTENTS
Safety Information ............................................... 2
Product Identication........................................... 4
Local Codes......................................................... 4
Product Features................................................. 4
Preinstallation...................................................... 5
Location of Termination Cap................................ 7
Venting Installation............................................... 8
Fireplace Installation.......................................... 14
Wiring Diagram.................................................. 21
Operation........................................................... 21
Inspecting Burners............................................. 22
Cleaning and Maintenance................................ 23
Specications .................................................... 24
Replacement Parts............................................ 24
Service Hints ..................................................... 24
Technical Service............................................... 24
Troubleshooting................................................. 25
Illustrated Parts Breakdown and Parts List........ 28
Warranty Information ...........................Back Cover
WARNING: Improper instal-
lation, adjustment, alteration,
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 qualified installer, service
agency or the gas supplier.
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 certied
kit is used.
State of Massachusetts: The
installation must be made by a
licensed plumber or gas tter
in the Commonwealth of Mas-
sachusetts.
WARNING: This product
contains and/or generates
chemicals known to the State
of California to cause cancer or
birth defects or other reproduc-
tive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate or service this replace.
Improper use of this replace
can cause serious injury or death
from burns, fire, explosion,
electrical shock and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
This vented gas replace is a sealed combus-
tion gas replace designed for residential
applications. This replace must be installed
with DESA vent pipe components and ter-
minations.
Outside airex installation is
required for both horizontal and
vertical installation.
This replace complies with the National Safe-
ty Standards and is listed and tested by OMNI
Test Laboratories, Inc. to ANSI Z21.50b-2005
standard as vented gas replace.
This replace must be installed by a qualied
(certied or licensed) service person. It brings
in fresh air for combustion through the outer
pipe and combustion gases are exhausted
through the inner pipe. If the glass door as-
sembly and venting pipe are not properly
seated, connected and sealed, carbon mon-
oxide leakage (spillage) can occur.

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120441-01A 3
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness or nausea. If
you have these signs, the replace may not
be working properly. Get fresh air at once!
Have replace serviced. Some people are
more affected by carbon monoxide than oth-
ers. These include pregnant women, people
with heart or lung disease or anemia, those
under the inuence of alcohol and those at
high altitudes.
Natural and Propane/LP Gas: Natural and
propane/LP gas 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 replace.
WARNING: Any change to
this replace or it’s controls can
be dangerous. Do not modify
this replace under any circum-
stances. Any parts removed for
servicing must be replaced prior
to operating replace.
WARNING: Do not use a blow-
er insert, heat exchanger insert
or other accessory not approved
for use with this replace.
WARNING: 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 certied kit is used.
WARNING: Do not allow fans
to blow directly into the replace.
Avoid any drafts that alter burner
ame patterns.
SAFETY INFORMATION
Continued Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects on the appliance.
Do not use this replace to cook
food or burn paper or other am-
mable material.
This replace reaches high tem-
peratures. Keep children and
adults away from hot surface to
avoid burns or clothing ignition.
Fireplace will remain hot for a
time after shutdown. Allow sur-
face to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with replace.
Keep the area around your
replace clear of combustible
materials, gasoline and other
ammable vapor or liquids. Do
not run replace where these
are used or stored.
1. For propane/LP replace, 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 propane/LP fuel tank
of less than 100 lb. capacity.
2. 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 neighbor’s phone. Follow the gas
supplier's instructions
• if you cannot reach you gas supplier, call
the re department.

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3. Never install the replace
• in a recreational vehicle
• in windy or drafty areas where curtains
or other combustible (ammable) objects
can make contact with the fireplace
front
• in high trafc areas
4. Turn fireplace off and let cool before
servicing, installing or repairing. Only a
qualied service person should install,
service or repair this replace. Have re-
place inspected annually by a qualied
service person.
5. 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 replace.
6. Have venting system inspected annually by
a qualied service person. If needed, have
venting system cleaned or repaired. See
Cleaning and Maintenance, page 23.
7. Do not use any solid fuels (wood, coal,
paper, cardboard, etc.) in this replace.
Use only the gas type indicated on re-
place nameplate.
8. 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.
9. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service person to arrange
for replacement of the unit.
10. Do not operate replace if any log is
broken.
11. Do not operate replace with glass door
removed, cracked or broken.
12. Provide adequate clearances around air
openings.
SAFETY INFORMATION
Continued
PRODUCT
IDENTIFICATION
Figure 1 - Direct Vent Fireplace
(DVF-36SC Shown)
Outer
Glass
Door
Log Set
Flue
Collar
Nailing
Flange
LOCAL CODES
Install and use replace 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 Installation 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
PRODUCT FEATURES
These are a few facts that can help you under-
stand and enjoy your direct vent replace:
• 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 (hori-
zontal). The vent pipe installation is very
important to allow for proper operation.
You must follow the venting instructions
very carefully for either vertical or horizontal
applications.
Center Brick/
Control Cover
Standard
Brick
Refractories
Aniron

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120441-01A 5
Figure 2 - Common Fireplace Locations
Flush with a wall
Through exterior wall
enclosed in a chase
Corner
installation
• This replace may be installed in any room
of your house provided all local codes and
these installation instructions are followed.
• Each time you turn on your replace, you
may notice some amount of condensation
on the inside of the replace glass. This
is normal and will disappear after 10-20
minutes of operation.
• Your direct vent gas fireplace system
(replace and venting) is a balanced and
sealed gas operating unit. It requires ap-
proximately 10-20 minutes of operating
time before the ame pattern stabilizes.
• Models DVF-36S and DVF-36H have a
standard glass inner door. Models DVF-
36SC and DVF-36HC have the standard
glass inner door with a middle glass door
and outer cool touch glass door.
PREINSTALLATION
LOCATION AND SPACE
REQUIREMENTS
Determine the safest and most efcient loca-
tion for your direct vent replace. 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 replace
and termination cap.
When deciding the location of your replace,
follow these rules:
• Do not connect this replace venting to a
chimney ue serving a separate solid-fuel
burning replace or appliance.
Figure 3 - Fireplace Bottom Dimensions
D
RW
FW
27 5/8"
26"
43"
PRODUCT FEATURES
Continued
• Due to high temperatures, do not locate this
replace in high trafc areas, windy or drafty
areas or near furniture or draperies.
• Proper clearances must be maintained.
• If your replace is to be installed directly on
carpeting, vinyl tile or any combustible mate-
rial other than wood, it must be installed on a
metal or wood panel extending the full width
and depth of the replace (see Figure 3).
• Your replace is designed to be used in
zero clearance installations. Wall or framing
material can be placed directly against any
exterior surface on the back, sides or top of
your replace, except where standoff spac-
ers are integrally attached. If standoff spac-
ers are attached to your replace, these
spacers can be placed directly against wall
or framing material. See framing details on
page 6.
• When locating termination cap, it is impor-
tant to observe the minimum clearances
shown in Figure 7, page 7.
• If recessing into a wall, you can avoid extra
framing by positioning your replace against
an already existing framing member.
• Do not recess termination cap into a wall
or siding.
• You may paint the termination cap with
450º F (232º C) heat-resistant paint to
coordinate with the exterior nish.
• 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 and the front of outside
air vent.
• Do not locate termination cap and outside air
vent 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.

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CLEARANCES
Minimum clearances to combustibles for the
replace are as follows:
*Back and sides 0"
Perpendicular walls 6"
Floor 0"
Ceiling to louver opening 42"
Front 36"
Top of Standoffs 0"
Vent (See venting instructions
for specic venting
clearances.)
Combustible material with a maximum thick-
ness of 5/8" may be ush with the top front
of replace.
* For back and sides of replace, do not pack
with insulation or other materials. 0" clear-
ance to combustible materials are for framing
purpose only.
NOTICE: This replace is intend-
ed for use as supplemental heat.
Use this replace along with
your primary heating system.
Do not install this replace as
your primary heat source. If you
have a central heating system,
you may run system’s circulat-
ing blower while using replace.
This will help circulate the heat
throughout the house.
FRAMING AND FINISHING
Figure 4 shows typical framing of this replace.
Figure 5 shows framing for corner installation.
All minimum clearances must be met.
If you are using a separate combustible man-
tel piece, refer to Figure 6 for proper instal-
lation height. You can install noncombustible
mantels at any height above the replace.
Note: Noncombustible mantels may discolor!
PREINSTALLATION
Continued
56 3/4"
43 1/4"
33" 28"
Figure 4 - Framing Clearances with
Outside Air Flex Duct
41 3/8"
82 1/8"
43 1/4"
43"
19
9
/
16
"
58 1/4"
Nailing
Tabs
Figure 5 - Framing Clearances for
Corner Installation
Figure 6 - Clearances for Combustible
Mantels
C
B
A
D E
F G
3
2
1
4
5
6
7
Wall
Ref.
Mantel
Depth Ref.
Mantel
from Top of
Opening
1 14" A 16"
2 12" B 14"
3 10" C 12"
4 8" D 10"
5 6" E 8"
6 4" F 6"
7 2" G 4"

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120441-01A 7
Fixed
Closed Openable Fixed
Closed
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" (30.5 cm) minimum]
B = clearance to window or door that may be opened
[6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US
if between 10,000 and 50,000, 12" (30 cm) in Canada
if between 10,000 and 100,000; 12" (30 cm) in US if
greater than 50,000, 36" (91 cm) in Canada if greater
than 100,000]
C = clearance to permanently closed window
[minimum 12" (30.5 cm) recommended to prevent
condensation on window]
D = vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 24" (61 cm) from
the center-line of the terminal [18" (45.7 cm) minimum]
E = clearance to unventilated soffit [12" (30.5 cm) 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" (91.4 cm) horizontally from the center line
of the regulator
I = clearance to service regulator vent outlet [*72" (182.9 cm)
minimum]
J = clearance to non-mechanical air supply inlet to building
or the combustion air inlet to any other fireplace
[6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US
if between 10,000 and 50,000, 12" (30 cm) in Canada
if between 10,000 and 100,000; 12" (30 cm) in US if
greater than 50,000, 36" (91 cm) in Canada if greater
than 100,000]
K = clearance to a mechanical air supply inlet [*In Canada,
6 ft. (1.83m) minimum; In US 3 ft. (91 cm) above if within
10 ft. (3 m) horizontally]
L = † clearance above paved side-walk or a paved driveway
located on public property [*84" (213.3 cm) minimum]
M = clearance under veranda, porch, deck
[*12" (30.5 cm) minimum ‡]
N = clearance above a roof shall extend a minimum of
24" (61 cm) above the highest point when it passes
through the roof surface and any other obstruction within
a horizontal distance of 18" (45.7 cm)
† 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" (15.2 cm)
Inside Corner
V
B
E
V
B = 6" (15.2 cm)
C = Maximum depth of 48" (121.9 cm)
for recessed location
D = Minimum width for back wall of
recessed location -
Combustible - 38" (965 mm)
Noncombustible - 24" (61 cm)
E = Clearance from corner in
recessed location-
Combustible - 6" (15.2 cm)
Noncombustible - 2" (5.1 cm)
Outside Corner Recessed Location
G
H
G = 12" (30.5 cm) minimum clearance
Balcony with No Side Wall
V
J
Combustible &
Noncombustible
H = 24" (61 cm)
J = 20" (50.8 cm)
Balcony with Perpendicular Side Wall
C
D
C
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
Openable
Figure 7 - Minimum Clearances for Termination Cap
LOCATION OF TERMINATION CAP

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VENTING INSTALLATION
NOTICE: Read these instruc-
tions completely before at-
tempting installation.
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 at-
tached to a chimney or ue 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 horizon-
tally on an outside wall, you may install
a standoff if the termination cap is to be
installed directly on a combustible nish
such as vinyl, wood, stucco, etc.
• Never run the vent downward as this may
cause excessive temperatures which could
cause a re.
• Vent pipe air space clearances to com-
bustibles are 1" on all sides except on the
horizontal sections, which requires 2" clear-
ance from the top of the pipe. Where the
termination cap penetrates a combustible
wall, 1" air space clearance is required.
• Have replace and selected vent compo-
nents on hand to help determine the exact
measurements when elbowing or offsetting.
Always use wall restops when penetrating
walls and restops when penetrating ceil-
ings or attic spaces.
• For installation of replace at elevations of
4000 feet or greater, pay special attention
to venting requirement recommendations.
WARNING: Read all instruc-
tions completely and thoroughly
before attempting installation.
Failure to do so could result in
serious injury, property damage
or loss of life.
NOTICE:Failuretofollowthesein-
structions will void the warranty.
NOTICE: Do not seal termination
cap to vent pipe. Cap must be
removable for vent inspection
and maintenance.
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 modication of the venting sys-
tem (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 replace
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 com-
mon vent systems.
WARNING: Vent pipe air
space clearances to combus-
tibles 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 combustible wall, 1" air space
clearance is required.

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120441-01A 9
INSTALLATION PLANNING
There are two basic types of direct vent
installation:
• Horizontal Termination
• Vertical Termination
Outside air ex installation is required for
both horizontal and vertical installation (see
page 13).
Horizontal Termination Installation
IMPORTANT: Horizontal square terminations
require only inner portion of wall restop. Hori-
zontal installations using round termination
require exterior portion of wall restop.
1. Set the replace in its desired location and
determine the route your horizontal vent-
ing will take. Do not secure the replace
until all venting has been installed. Some
installations require sliding the replace
in and out of position to make nal vent-
ing connections. Figures 14 and 15 on
page 11 show different congurations for
venting with horizontal termination that
will help you decide which application
best suits your installation. 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
replace.
2. Direct vent pipe sections and compo-
nents are designed with special twist-lock
connections.
Twist-Lock Procedure: The female
ends of the pipes have locking lugs (in-
dentations). These lugs will slide straight
into matching slots on the male ends
of adjacent pipes. Push pipe sections
together and twist one section clockwise
approximately one-quarter turn until the
sections are fully locked (see Figure 8).
Note: Horizontal runs of vent must be sup-
ported every three feet. Use wall straps
for this purpose.
3. Assemble the desired combination of pipe
and elbows to the replace ue collar. If
there are long portions of venting run, pre-
assembled pipe sections may be installed
as subassemblies for convenience.
VENTING INSTALLATION
Continued
Figure 8 - Vent Pipe Connections
Female
Locking Lugs
Male
Slots
Figure 9 - Vent Opening Requirements
Center of
Hole
4. 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
an 11 1/2" x 11 1/2" 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).
(Framing
Detail)
11
1
/ 2 "
11
1
/ 2 " Inside Framing
11
1
/ 2 "
8
1
/ 2 "
Vent
O
pening
Combustible Wall
Vent Opening
Noncombustible Wall

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VENTING INSTALLATION
Continued
WARNING: Do not recess
vent termination into any wall.
This will cause a re hazard.
5. 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 attaching 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 fas-
teners for stucco, brick, concrete or other
types of sidings (see Figure 10).
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 stand-
off. Apply non-hardening mastic around
outside edge of standoff. Position the
standoff/cap assembly in the center of the
11 1/2" square hole and attach to exterior
wall with wood screws provided (see Fig-
ure 11). The siding standoff must sit ush
against the exterior fascia material.
6. Combustible Exterior Wall Only: Slide
the wall restop over the vent pipe before
connecting horizontal run to vent cap (see
Figure 12).
Figure 10 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Wood
Screw
Vent Cap
Figure 11 - Installing Siding Standoff
(Combustible Exterior Wall)
Cut Siding Away to
Fit Standoff
Wood
Screw
Screws
Standoff
Vent
Cap
Apply Mastic
to All Four Sides
Vent Cap
(Horizontal
Termination)
Interior Wall
Surface
Wall
Firestop
Horizontal
Vent Pipe
Figure 12 - Connecting Vent Cap with
Horizontal Vent Pipe
Screw
Apply
Mastic to All
Four Sides
7. Carefully move replace, with vent as-
sembly attached, toward wall and insert
vent pipe into horizontal termination. The
pipe overlap should be a minimum of 1 1/4"
(see Figure 13, page 11).
8. Combustible Exterior Wall Only: Slide
wall restop against interior wall surface
and attach with screws provided. See Fig-
ure 13, page 11, for horizontal termination
details.
9. Place replace into position and shim with
noncombustible material if needed. Nail or
screw side anges to framing to secure
unit in place. IMPORTANT: Make sure re-
place is level before securing. If replace
is not level it will not work properly.

www.desatech.com
120441-01A 11
2' Min.
2' Pipe Min.
+ 90° Elbow
7' Min.
VENTING INSTALLATION
Continued
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
11 1/2" x 11 1/2"
Framed Opening
Maintain 1"
Minimum Air
Space Around
Outer Pipe When
Penetrating a Wall
Minimum
Pipe
Overlap
11/4"
Wall
Firestop
Direct
Vent
Pipe
Horizontal Termination Congurations
Figures 14 and 15 show different con-
gurations and alternatives for venting with
horizontal termination. Each gure includes
a chart with critical minimum and maximum
dimensions which MUST be met.
NOTICE: Do not seal termination
cap to vent pipe. Cap must be
removable for vent inspection
and maintenance.
WARNING: Never run vent
downward as this may cause
excessive temperatures which
could cause a re. Operation of
improperly installed and main-
tained venting system could
result in serious injury, property
damage or loss of life.
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
Horizontal High
Wind Square
Termination
Wall
Firestop
90° Elbow
Figure 14 - Horizontal Termination Using
One 90° Elbow
Venting with Two 90° Elbows
Vertical (V) Horizontal (H1) +
Horizontal (H2)
7' min. 18' max.
8' min. 20' max.
20' max. 20' max.
Figure 15 - Horizontal Termination Using
Two 90° Elbows

www.desatech.com 120441-01A12
Vertical Termination Installation
Note: Vertical restrictor must be installed in
all vertical installations.
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 16)
to avoid cutting load bearing members.
Note: Pay special attention to these instal-
lation instructions for required clearances
(air space) to combustibles when passing
through ceilings, walls, roofs, enclosures,
attic rafters, etc. Do not pack air spaces
with insulation. Also note maximum verti-
cal rise of the venting system and any
maximum horizontal offset limitations.
2. Set the replace in desired location. Drop
a plumb line down from the ceiling to the
position of the replace exit ue. 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.
Flat Ceiling Installation
1. Cut a 11 1/2" square hole in the ceiling
using the locating hole as a center point.
The opening should be framed to 11 1/2"
x 11 1/2" inside dimensions, as shown in
Figure 8 on page 9 using framing lumber
the same size as the ceiling joists. If the
area above the ceiling is an insulated
ceiling or an attic, nail restop from the
top side. This prevents loose insulation
from falling into the required clearance
space. Of the area above the ceiling
is a living space, install restop below
the framed hole. The restop should be
installed with no less than three nails
per side (see Figure 17).
2. Assemble the desired lengths of pipe
and elbows necessary to reach from the
replace ue up through the restop. Be
sure all pipe and elbow connections are
fully twist-locked (see Figure 7, page 9).
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 11 1/2" x 11 1/2" 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 9.
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 15, page 11). When-
ever possible, use 45° elbows instead of
90° elbows. The 45° elbow offers less
restriction to the ow of the ue gases.
VENTING INSTALLATION
Continued
Figure 16 - Offset with Wall Strap and 45°
Elbows
45° Elbow
Wall Strap
Roof Flashing
Ceiling Firestop
Figure 17 - Installing Firestop
If area above is a living space, install
restop below framed hole.
If area above is an attic or insulated area,
install restop above framed hole.

www.desatech.com
120441-01A 13
5. Place the ashing over the pipe section(s)
extending through the roof. Secure the
base of the ashing to the roof and fram-
ing with roong nails. Be sure roong
material overlaps the top edge of the
ashing as shown in Figure 16, page 12.
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 6 on page 7. Note: You must in-
crease vent height for steep roof pitches.
Nearby trees, adjoining rooines, 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 sec-
tion of vent pipe.
Note: If the vent pipe passes through any oc-
cupied areas above the rst oor, including
storage spaces and closets, you must enclose
pipe. You may frame and sheetrock the en-
closure with standard construction material.
Make sure and meet the minimum allowable
clearances to combustibles. Do not ll any of
the required air spaces with insulation.
VENTING INSTALLATION
Continued
Figure 18 - Vertical Venting
Conguration
Vertical
Venting
V = 40' max.
HIGH ALTITUDE INSTALLATION
Your DESA direct vent replace has been
tested and approved for elevations from 0-
2000 feet (USA) and elevations from 0-4500
feet (Canada).
When installing at an elevation above 2000
feet (in the USA), you may need to decrease
the input rating by changing the existing
burner orice to a smaller size. Reduce input
4% for each 1000 feet above sea level. Check
with your local gas company for proper orice
size identication.
When installing this replace at an elevation
above 4500 feet, check with local authori-
ties.
Vertical Termination Congurations
Figure 17 shows the congurations for vertical
termination.
OUTSIDE AIR FLEX INSTALLATION
Outside air ex installation is required for both
horizontal and vertical venting installation.
There are 2 outside air ex kits available for
purchase (see Parts List for Venting Kits and
Components, page 14).
Construct a 4 1/2" x 4 1/2" framing or opening
on exterior wall (see Figure 19). Install outside
air vent termination in a location that would
not eventually be obstructed by bushes, snow
or other obstructions. Locate outside air vent
near replace to make ex duct installation
easier.
Figure 19 - Outside Air Flex Duct
Installation
Outside Air Vent
Termination
Flex Venting
Secure Both Ends
of Flex Using
Hi-Temp Duct Tape

www.desatech.com 120441-01A14
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
HTS-58 Horizontal Square Termination,
Galvanized
VT-58 Vertical Round 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
RF-58 Flat Roof Flashing
AK6-37 37" Outside Air Flex Vent Kit
AK6-75 75" Outside Air Flex Vent Kit
VENTING INSTALLATION
Continued
FIREPLACE
INSTALLATION
CHECK GAS TYPE
Use proper gas type for the replace unit you
are installing. If you have conicting gas types,
do not install replace. See retailer where you
purchased the replace for proper replace
according to your gas type.
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
WARNING: A qualified
service person must connect
replace to gas supply. Follow
all local codes.
CAUTION: For propane/LP
units, never connect replace
directly to the propane/LP sup-
ply. This heater requires an ex-
ternal regulator (not supplied).
Install the external regulator
between the replace and pro-
pane/LP supply.
WARNING: For natural gas,
never connect fireplace to
private (non-utility) gas wells.
This gas is commonly known
as wellhead gas.
Installation Items Needed
Before installing replace, 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 exible gas line with gas connec-
tor (if allowed by local codes)
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the CSA design-certied equipment shutoff
valve from your retailer.

www.desatech.com
120441-01A 15
For propane/LP connection only, the installer
must supply an external regulator. The exter-
nal regulator will reduce incoming gas pres-
sure. You must reduce incoming gas pressure
to between 11" and 14" of w.c. pressure. If
you do not reduce incoming gas pressure,
replace regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 20. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-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 replace.
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 replace
(see Figure 21).
IMPORTANT: Install main gas valve (equip-
ment 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 replaces.
Figure 20 - External Regulator with Vent
Pointing Down (Propane/LP Only)
Propane/LP
Supply Tank External
Regulator
Vent
Pointing
Down
FIREPLACE
INSTALLATION
Continued
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 replace 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
21. Locate sediment trap/drip leg where it is
within reach for cleaning. Install in piping sys-
tem between fuel supply and replace. 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 replace gas controls. If sedi-
ment trap/drip leg is not installed or is installed
wrong, replace may not run properly.
Figure 21 - Gas Connection
CSA Design-Certied
Equipment Shutoff Valve
with 1/8" NPT Tap*
3" Minimum
Approved
Flexible
Gas Line
Cap Pipe Tee
Joint Nipple
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-certied equipment shutoff
valve may be supplied with the appliance or
you can purchase it from your retailer.

www.desatech.com 120441-01A16
FIREPLACE
INSTALLATION
Continued
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. Route exible gas line (provided by in-
staller) from equipment shutoff valve to
replace. Route exible gas supply line
through one of the access holes on side
of replace.
2. Attach exible gas line from gas supply to
control valve (see Figure 22).
3. Check all gas connections for leaks. See
Checking Gas Connections.
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
ame to check for a leak. Apply
noncorrosive leak detection uid
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 replace and its individual
equipment shutoff valve from gas supply
piping system. Pressures in excess of
1/2 psig (3.5 kPa) will damage replace
gas regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas replace or opening
main gas valve located on or near gas
meter for natural gas replace or using
compressed air.
4. Check all joints of gas supply piping sys-
tem. Apply noncorrosive leak detection
uid to all joints. Bubbles forming show a
leak. Correct all leaks at once.
5. Reconnect fireplace and equipment
shutoff valve to gas supply. Check recon-
nected ttings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see
Figure 23).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas replace or opening
main gas valve located on or near gas
meter for natural gas replace or using
compressed air.
3. Check all joints from propane/LP supply
tank or gas meter to equipment shutoff
valve (see Figure 24 or Figure 25, page
17). Apply noncorrosive leak detection
uid to all joints. Bubbles forming show a
leak.
4. Correct all leaks at once.
Figure 23 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
1/2" NPT
Incoming
Gas Line
Inlet
Pressure
Tap
Outlet
Pressure
Tap
Equipment
Shutoff
Valve
Flexible
Gas Line
Do NOT
Kink
Note: Wire Connections Not Shown for Clarity
Red Surface
Indicates For
Propane/LP Use
Only
Figure 22 - Connecting Flexible Gas Line
to Electronic Valve

www.desatech.com
120441-01A 17
FIREPLACE
INSTALLATION
Continued
Figure 24 - Checking Gas Joints for
Propane/LP Gas Fireplace
Propane/LP
Supply Tank
Gas Valve
Equipment Shutoff Valve
Figure 25 - Checking Gas Joints for
Natural Gas Fireplace
Gas
Meter
Gas Valve
Equipment
Shutoff Valve
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
ure 23, page 16).
2. Open propane/LP supply tank valve for
propane/LP replace or main gas valve
located on or near gas meter for natural
gas replace.
3. Make sure control knob of replace is in
the OFF position.
4. Check all joints from equipment shutoff
valve to gas valve (see Figure 24 or Figure
25). Apply noncorrosive leak detection
uid to all joints. Bubbles forming show a
leak. Correct all leaks at once.
5. Light replace (see Operating Fireplace,
page 21). Check all other internal joints
for leaks.
6. Turn off replace (see To Turn Off Gas to
Appliance, page 21).
REMOVING/REPLACING GLASS
DOORS
CAUTION: Do not operate
this replace with a broken glass
door panel or without the glass
door panel securely in place.
For replacement part informa-
tion see Replacement Parts,
page 24.
CAUTION: Wear gloves and
safety glasses while handling
or removing broken glass. Do
not remove if glass is hot. Keep
children and pets away from
glass.
WARNING: If replace has
been running, turn off replace.
Let cool before removing glass
doors.
WARNING: More than one
person is required when replac-
ing glass.
Models DVF-36S and DVF-36H have only an
inner door to be removed/replaced. Models
DVF-36SC and DVF-36HC have an inner,
middle and outer door.
Installing Middle Door (DVF-36SC/HC
Models Only)
Middle door hangs on 2 hinges from top of
inner glass door (see Figure 26, page 18).
1. Remove middle door from packaging.
2. Angle middle door so top goes into replace
rst. Hang middle door on brackets at top
of inner door (see Figure 26, page 18).
Installing Outer Door (DVF-36SC/HC
Models Only)
1. Remove outer door from packaging.
2. There are three spring loaded pins on
outer door. Set pins to the locked position
(see Figure 26, page 18).
3. Position outer door so pins line up with
mating hinges on replace. Holding door
in place, release locks on spring loaded
pins (see Figure 26, page 18).

www.desatech.com 120441-01A18
Removing and Installing Inner Door
Inner door is factory installed.
1. Open outer door. Secure door in open
position to avoid accidental breakage.
2. Remove middle door by lifting from
hinges (see Figure 26). Set aside to avoid
scratches or damage.
3. Remove screws from two side trims (see
Figure 27, page 19).
4. Remove side bricks from top to bottom
by prying out of housings(see Figure 27,
page 19).
5. Remove bottom bricks, starting with
middle section (see Figure 27, page 19).
6. Remove screen and rod (see Figure 27,
page 19).
FIREPLACE INSTALLATION
Continued
7. While holding inner door, release 6 latches,
3 top and 3 bottom (see Figure 28, page
19).
8. Slowly tilt open glass at a 30° angle and lift
up to release glass from bottom retainer
(see Figure 28, page 19).
9. Follow these instructions in reverse to
reinstall.
LOCK
UNLOCK
Figure 26 - Removing/Installing Middle Door
Spring
Loaded Pin
Hook Located
on Inner Door
Pin Located on
Middle Door
Hinge
Middle
Door Inner
Door
Outer
Door

www.desatech.com
120441-01A 19
Lock
Unlock
FIREPLACE INSTALLATION
Continued
Figure 27 - Removing/Installing Brick, Side Trim and Screen
Figure 28 - Removing/Installing Inner Door
Side Trim
Side
Trim
Side
Bricks
Side Bricks
Left
Bottom Brick
Middle Bottom Brick Right Bottom Brick
Inner Door
Screen
and Rod
LAVA ROCK, EMBER FLAKES AND
SCRAP LOG INSTALLATION
Lava rock, ember akes and scrap log pieces
are included with your replace. Install these
items while glass doors are open and/or
removed.
1. Follow instructions from Removing and
Installing Inner Door, page 18, to move
glass out of the way of this installation.
2. Place lava rock around base of burner.
Make sure burner ports are not covered
(see Figure 29, page 20).

www.desatech.com 120441-01A20
Figure 32 - Installing the WRC Remote
Receiver
Fireplace
Receptacle Remote
Control
Receiver
Extension
Cord
Ignition
Module Plug
WALL SWITCH INSTALLATION
Installation of a wall switch allows you to
activate gas control valve and turn replace
on and off. Wall switch is to be connected to
incoming 120 volt regular household wiring
that supplies electricity to replace.
REMOTE CONTROL INSTALLATION
(MODEL WRC)
Note: If using wireless hand-held remote
control, the wall switch must be in the ON
position to be operational. The remote control
then becomes the switching mechanism for
replace operation.
1. Remove center brick/control cover.
2. The WRC model receiver does not require
a battery. To install receiver:
a. Plug short extension cord into replace
receptacle.
b. Plug receiver uinit into extension cord.
c. Plug ignition module into receiver unit
(see Figure 32).
3. Activate remote handset battery by re-
moving insulating tab on back of handset
(see Figure 33). Battery is included pre-
installed.
4. Once battery is activated, the unit is ready
to use.
5. Replace center brick/control cover.
Figure 33 - Installing Battery into Back of
Handset
Pull to Remove
Insulation Tab
Battery Cover
12 Volt Battery
Back of
Handset
FIREPLACE
INSTALLATION
Continued
Figure 29 - Installing Lava Rock
Figure 30 - Installing Ember Flakes
Figure 31 - Installing Scrap Log Pieces
Lava
Rock
Ember
Flakes
Scrap Log Pieces
3. Place ember akes around front and sides
of burner and on burner ports (see Figure
30). This will create the glowing ember
appearance as the flame touches the
ember akes. Do not block burner ports
by overlapping ember akes in one area. It
is not necessary to use all ember material
provided.
4. Place scrap log pieces randomly as shown
in Figure 31 on lava rock and around (but
not on) burner ports.