Desa "TUDOR" VT32N-A Series Quick start guide

DIRECT-VENT FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
For more information, visit www.desatech.com
NATURAL GAS “TUDOR” MODELS (V)T32N-A SERIES,
CGDV32NR AND CTDV32NR-HA
PROPANE/LP GAS “TUDOR” MODELS (V)T32P-A SERIES
AND CGDV32PR
WARNING: If the information in this manual is not
followed 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.

www.desatech.com 116646-01H2
SAFETY
WARNING: Improper
installation, adjustment,
alteration, service or
maintenance can cause
injury or property dam-
age. Refer to this manual
for correct installation
and operational proce-
dures. For assistance or
additional information
consult a qualified in-
staller, service agency or
the gas supplier.
This appliance may be in-
stalled in an aftermarket,*
permanently located,
manufactured (mobile)
home, where not prohib-
ited by 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 certied kit is used.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
State of Massachusetts:
The installation must
be made by a licensed
plumber or gas tter in
the Commonwealth of
Massachusetts.
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, re, explosions,
electrical shock and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
This replace must be installed by a qualied
(certied 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, con-
nected and sealed, carbon monoxide leakage
(spillage) can occur.
TABLE OF CONTENTS
Safety .................................................................. 2
Product Identication ........................................... 4
Local Codes......................................................... 4
Product Features ................................................. 4
Pre-Installation Preparation ................................. 5
Location of Termination Cap ................................ 7
Venting Installation .............................................. 8
Fireplace Installation.......................................... 17
Operation ........................................................... 26
Inspecting Burners............................................. 29
Cleaning and Maintenance ................................ 30
Troubleshooting ................................................. 32
Replacement Parts ............................................ 36
Service Hints ..................................................... 36
Technical Service............................................... 36
Specications .................................................... 36
Accessories ....................................................... 37
Parts .................................................................. 38
Warranty ..............................................Back Cover

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116646-01H 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 af-
fected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol and those at high altitudes.
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 replace.
WARNING: Any change to
this replace or its controls can
be dangerous.
WARNING: Do not use a blow-
er insert, heat exchanger insert
or other accessory not approved
for use with this replace.
Do not use any solid fuels (wood,
coal, paper, cardboard, etc.) in this
replace. Use only the gas type in-
dicated on replace name plate.
Carefully supervise young chil-
dren when they are in the room
with replace.
This replace reaches high tem-
peratures. Keep children and
adults away from hot surfaces to
avoid burns or clothing ignition.
Fireplace will remain hot for a
time after shutdown. Allow sur-
faces to cool before touching.
Do not operate replace with
glass door removed, cracked
or broken.
SAFETY
Continued
Keep the appliance area clear
and free from combustible ma-
terials, gasoline and other am-
mable vapors and liquids.
Do not place clothing or other
ammable material on or near
replace. Never place any ob-
jects on replace.
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 certied kit is used.
2. 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 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 neighbor’s phone. Follow the gas
supplier’s instructions
• if you cannot reach your gas supplier,
call the re department
4. Never install the replace
• in a recreational vehicle
• in windy or drafty areas where curtains
or other combustible (flammable)
objects can make contact with the
replace front
• in high trafc areas
5. Do not modify this replace under any
circumstances. Any parts removed for
servicing must be replaced prior to operat-
ing replace.
6. 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.
7. 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.

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SAFETY Continued
8. Have venting system inspected annually by
a qualied service person. If needed, have
venting system cleaned or repaired. See
Cleaning and Maintenance, page 30.
9. Do not use this replace to cook food or
burn paper or other objects.
10. This appliance, when installed, must be
electrically grounded in accordance with
local codes or, in the absence of local
Figure 1 - Direct-Vent Fireplace with Millivolt Ignition
Glass Door Assembly
ON/OFF/REMOTE Switch
(Optional Installation)
Log Set
Lava Rock
Glowing
Embers
Upper Louver Panel
Lower Louver Panel
Flue Collar
Nailing Flange
Grate Assembly
Piezo Ignitor
Control Valve
Blower Switch (Optional Installation)
LOCAL CODES
codes, with the National Electrical Code,
ANSI/NFPA 70.
11. Do not use replace if any part has been
under water. Immediately call a qualied
service person to arrange for replacement
of the unit.
12. Do not operate replace if log is broken.
13. Provide adequate clearances around air
openings.
PRODUCT IDENTIFICATION
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*.
*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 (horizontal). 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.
• This replace may be installed in any room
of your house provided all local codes and
these installation instructions are followed.
• This replace does not require electricity
to operate.
• Only the blower requires electricity if
installed. If you plan to install the blower
at a later date, outlet must be wired at the
bottom of the replace when framing.
• A piezo ignitor and ceramic electrode create
sparks 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 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

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116646-01H 5
sealed gas operating unit. It requires ap-
proximately 10-20 minutes of operating
time before the ame pattern stabilizes.
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
22 1/2"
34 3/8"
LOCATION AND SPACE REQUIREMENTS
Determine the safest and most efcient location
for your DESA 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 loca-
tion 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.
• 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 spacers
are integrally attached. If standoff spacers
are attached to your replace, these spacers
can be placed directly against wall or framing
material. See framing details on page 6.
• If you plan on installing a television or enter-
tainment center recessed above your re-
place, it is recommended that you maintain a
minimum 18" above top of louver opening.
• 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 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.
16 5/8"
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 0"
Vent (See venting instructions for
specic venting clearances.)
Combustible material with a maximum thickness
of 5/8" may be ush with top front of replace.
* For back and sides of replace, do not pack with
insulation or other materials. 0" clearance to com-
bustible materials are for framing purpose only.
PRODUCT FEATURES Continued
• Fireplaces with the sufx of -HA have been
designed to operate at altitudes of 4000
feet and above.
PRE-INSTALLATION PREPARATION
• Do not locate termination cap where exces-
sive 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.
• For horizontal installations above 2,000
feet, it is recommended that a 12" extension
pipe be added before starter elbow and a
round horizontal termination be used (see
High Altitude Installation, page 16).

www.desatech.com 116646-01H6
PRE-INSTALLATION PREPARATION
Continued
NOTICE: This replace is in-
tended for use as supplemental
heat. Use this replace along
with your primary heating sys-
tem. Do not install this replace
as your primary heat source.
If you have a central heating
system, you may run system’s
circulating blower while using
replace. This will help circulate
the heat throughout the house.
In the event of a power outage,
you can use this replace as a
heat source.
FRAMING AND FINISHING
Figure 4 shows typical framing of this replace.
Figure 5 shows framing for corner installation.
All minimum clearances must be met.
For available accessories for this replace,
see Accessories on page 37. If you are using
a separate combustible mantel piece, refer to
Figure 6 for proper installation height. You can
install noncombustible mantels at any height
above the replace. Note: Noncombustible
mantels may discolor!
323/8"
345/8"
17" Horiz. Vent
20" Vert. Vent
Figure 5 - Framing Clearances for Corner
Installation
A
B
E
F
G
H
DC
Nailing Tabs
28 1/2"
13 5/8"39 3/8"
9 1 /
2
"
97/8"343/8"
541/8"
Nailing
Tabs
C
B
A
DE
FG
T o p of Louver
Opening
3
2
1
4
5
6
7
Wall
Figure 6 - Clearances for Combustible
Mantels
345/8"
Figure 4 - Framing Clearances for
Installation Against an Exterior Wall
Ref.
Mantel
Depth Ref.
Mantel from
Top of Louver
Opening
1 14" A 16"
2 12" B14"
3 10" C12"
4 8" D10"
5 6" E 8"
6 4" F6"
7 2" G4"

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116646-01H 7
Figure 7 - Minimum Clearances for Termination Cap
LOCATION OF TERMINATION CAP
Fixed
Closed OpenableFixed
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 METERRESTRICTED 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

www.desatech.com 116646-01H8
VENTING INSTALLATION
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:Failureto follow these in-
structions will void the warranty.
NOTICE: Do not seal vent cap
to pipe. Cap must be removable
for service.
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 com-
ponent
• 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 serving 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 combustibles are
1" on all sides except on the hori-
zontal 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.
NOTICE: Read these instruc-
tions completely before attempt-
ing 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.
• Snorkel terminations are required when
minimum clearance to grade cannot be
met (see Figure 16 on page 12).
• 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.
• If using a venting conguration of only
horizontal venting with no vertical run, a
1/4" rise for every 12" of run toward the
termination is required.
• For installation of replace at elevations of
4000 feet or greater, pay special attention
to venting requirement recommendations.

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116646-01H 9
INSTALLATION PLANNING
There are two basic types of direct-vent
installation:
• Horizontal Termination
• Vertical Termination
Horizontal Termination Installation
IMPORTANT: Horizontal square terminations
require only inner portion of wall restop.
Horizontal installations using round termina-
tion require exterior portion of wall restop
available only in vent kit HTK (see Figure
14, page 11).
1. Set replace in its desired location and
determine the route your horizontal venting
will take. Do not secure replace until all
venting has been installed. Some installa-
tions require sliding replace in and out of
position to make nal venting connections.
Figures 14 through 18 on pages 11 through
13 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 components
are designed with special twist-lock con-
nections.
Twist-Lock Procedure: Female ends of
pipes have locking lugs (indentations).
These lugs will slide straight into match-
ing slots on male ends of adjacent pipes.
Push pipe sections together and twist
one section clockwise approximately one-
quarter turn until 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 sys-
tem to replace ue collar. The elbow is
designed to be twist-locked onto ue collar
as described in step 2. IMPORTANT: Do
not attempt to alter conguration of elbow
by cutting, twisting, bending, etc.
4. Assemble desired combination of pipe
and elbows to replace ue collar. If there
are long portions of venting run, preas-
sembled pipe sections may be installed
as subassemblies for convenience.
VENTING INSTALLATION
Continued
5. Carefully determine location where vent
pipe assembly will penetrate the outside
wall. The center of hole should line up with
center line of horizontal vent pipe. Mark
wall for a 11 1/2" x 11 1/2" square hole. Cut
and frame the square hole in exterior wall
where vent will be terminated. If wall being
penetrated is constructed of noncombus-
tible material, such as masonry block or
concrete, a 8 1/2" hole with zero clearance
is acceptable (see Figure 9).
WARNING: Do not recess
vent termination into any wall.
This will cause a re hazard.
(Framing
Detail)
11
1
/
2
"
11
1
/
2
" Inside Framing
11
1
/
2
"
8
1
/
2
"
Ve nt
O
pening
Combustible Wall
Ve nt Opening
Noncombustible Wall
Figure 8 - Vent Pipe Connections
Figure 9 - Vent Opening Requirements
Center
of Hole
Female Locking Lugs
Male
Slots

www.desatech.com 116646-01H10
6. Noncombustible Exterior Wall: Position
horizontal vent cap in center of the 8 1/2"
round hole and attach to exterior wall with
four screws (see Figure 10). Note: The four
wood screws provided should be replaced
with appropriate fasteners for stucco, brick,
concrete or other types of sidings. Before
attaching vent cap to exterior wall, run
a bead of non-hardening mastic (pliable
sealant) around outside edges to make a
seal between it and outside wall.
Combustible Exterior Wall: For vinyl
siding, stucco or wood exteriors, a siding
standoff may be installed between vent
cap and exterior wall. Siding standoff
prevents excessive heat from damaging
siding materials. Siding material must be
cut to accommodate standoff. Bolt vent
cap to standoff. Apply non-hardening
mastic around outside edge of standoff.
Position standoff/cap assembly in center
of the 11 1/2" square hole and attach to
exterior wall with wood screws provided
(see Figure 11). Siding standoff must sit
ush against exterior fascia material.
7. Connecting Vent Cap with Horizontal
Vent Pipe: Slide wall restop over vent
pipe before connecting horizontal run to
vent cap (see Figure 12).
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).
VENTING INSTALLATION
Continued
Figure 10 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Figure 11 - Installing Siding Standoff
(Combustible Exterior)
Wood
Screw
Vent
Cap
Cut Siding Away to
Fit Standoff
Wood Screw
Screws
Standoff
Vent Cap
Apply Mastic
to All Four Sides
Slide wall restop against interior wall
surface and attach with screws provided
(see Figure 12). See Figure 13, page 11,
for horizontal termination details.
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.
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

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116646-01H 11
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 1 1/4"
Wall
Firestop
Direct Vent
Pipe
VENTING INSTALLATION
Continued
Horizontal Termination Congurations
Figures 14 through 18 show different congura-
tions and alternatives for venting with horizontal
termination. Each gure includes a chart with
critical minimum and maximum dimensions
which MUST be met. IMPORTANT: If using a
venting conguration of only horizontal venting
with no vertical run, a 1/4" rise for every 12" of
run toward termination is required.
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.
Vertical (V) Horizontal (H)
29 3/4" 17" max.
Horizontal High
Wind Square
Termination
Wall
Firestop
45° Elbow
Figure 14 - Horizontal Termination
Conguration for Square or Round
Termination
45° Elbow
Wall
Firestop
Slide Ring
Over Elbow
to Complete
Connection
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") adjustable pipe)
• NOT FOR CORNER INSTALLATION
Adjustable
Pipe 12"
Max.
Square Termination
Horizontal Round
Termination
Round Termination
(Kit HTK Shown)

www.desatech.com 116646-01H12
VENTING INSTALLATION
Continued
Vertical (V) Required
Vertical (V) Vertical Pipe Horizontal (H)
*43 3/4" min. None 30" max.
53 3/4" min. 1 ft. 48" max.
65 3/4" min. 2 ft. 60" max.
77 3/4" min. 3 ft. 84" max.
89 3/4" min. 4 ft. 20' max.
* Ground Floor Corner Venting
Figure 15 - Horizontal Termination Conguration 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
Not to Exceed
(H) Limits
12" Min.
CORNER INSTALLATION
Recommended Applications:
• Corner ground oor installation
• Ground oor 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
Termination
12" Min.
12" Min.
Adequate
Drainage
Snorkel
Termination
Snorkel
Termination
90° Elbow
12" Min.
Wall
Firestop
Snorkel terminations are available for instal-
lations requiring a vertical rise on exterior of
building. If installing snorkel termination below
grade, you must provide proper drainage to
prevent water from entering snorkel termina-
tion (see Figure 16). Do not back ll around
snorkel termination.
Figure 16 - Snorkel Termination Congurations for Below Ground Installation

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116646-01H 13
HORIZONTAL SYSTEM INSTALLATION USING TWO 90° ELBOWS
The following congurations show the minimum vertical rise requirements for a horizontal
system using two 90° elbows.
VENTING INSTALLATION
Continued
Figure 17 - Horizontal Termination Conguration for Venting Using Two 90° Elbows
Venting with Two 90° Elbows
Horizontal (H1) +
Vertical (V) 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.
45° Elbow
Figure 18 - Horizontal Termination Conguration for Venting Using Two 90° Elbows
with Termination at 90° with Fireplace
Venting with Two 90° Elbows
Horizontal (H1) +
Vertical (V) Horizontal (H2)
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
20' max. 20' max.
45° Elbow

www.desatech.com 116646-01H14
INSTALLATION FOR VERTICAL
TERMINATION
Note: Vertical restrictor must be installed in
all vertical installations.
1. Determine route your vertical venting
will take. If ceiling joists, roof rafters or
other framing will obstruct 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 insulation. Also note maximum
vertical rise of venting system and any
maximum horizontal offset limitations.
2. Set replace in desired location. Drop a
plumb line down from ceiling to position
of replace exit ue. Mark center point
where vent will penetrate ceiling. Drill a
small locating hole at this point.
Drop a plumb line from inside of roof to
locating hole in ceiling. Mark center point
where vent will penetrate roof. Drill a small
locating hole at this point.
Flat Ceiling Installation
1. Cut a 11
1
/
2
" square hole in ceiling using locat-
ing hole as a center point. Opening should be
framed to 11
1
/
2
" x 11
1
/
2
" inside dimensions,
as shown in Figure 9 on page 9 using framing
lumber the same size as ceiling joists. If area
above the ceiling is an insulated ceiling or an
attic, nail restop from top side. This prevents
loose insulation from falling into required
clearance space. If area above ceiling is a
living space, install restop below framed
hole. Firestop should be installed with no less
than 3 nails per side (see Figure 20).
2. Assemble desired lengths of pipe and
elbows necessary to reach from replace
ue up through restop. Be sure all pipe
and elbow connections are fully twist-
locked (see Figure 8, page 9).
3. Cut a hole in roof using 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 pitch of roof. There
must be a 1" clearance from vent pipe to
combustible materials. Frame opening as
shown in Figure 9, page 9.
4. Connect a section of pipe and extend up
through hole.
Note: If an offset is needed to avoid
obstructions, you must support vent pipe
every 3 feet. Use wall straps for this pur-
pose (see Figure 19). Whenever possible,
use 45° elbows instead of 90° elbows. The
45° elbow offers less restriction to the ow
of ue gases and intake air.
5. Place ashing over pipe section(s) ex-
tending through roof. Secure base of
ashing to roof and framing with roong
nails. Be sure roong material overlaps
top edge of ashing as shown in Figure
19. There must be a 1" clearance from
vent pipe to combustible materials.
Figure 20 - 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.
VENTING INSTALLATION
Continued
Figure 19 - Offset with Wall Strap and 45°
Elbows
45° Elbow
Wall Strap
Roof
Flashing
Ceiling
Firestop

www.desatech.com
116646-01H 15
6. Continue to add pipe sections until height
of vent cap meets the minimum building
code requirements described in Figure
7 on page 7. Note: You must increase
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 vent height may solve this
problem.
7. Twist-lock vent cap onto last section of
vent pipe.
Note: If vent pipe passes through any occu-
pied areas above rst oor, including storage
spaces and closets, you must enclose pipe.
You may frame and sheetrock enclosure with
standard construction material. Make sure
and meet minimum allowable clearances
to combustibles. Do not ll any required air
spaces with insulation.
Vertical Termination Congurations
Figures 21 through 24 show four different
congurations for vertical termination.
VENTING INSTALLATION
Continued
Figure 21 - Vertical Venting
Conguration Using Two 90° Elbows
with Two Horizontal Runs (Vertical
Round High Wind Termination Shown)
Venting with Two 90° Elbows
Horizontal (H1) +
Vertical (V) Horizontal (H2)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Note: Install
restrictor into
inner collar of
replace as
shown.
45° Elbow
Figure 22 - Vertical Venting Conguration
Using One 90° Elbow (Vertical Round
High Wind Termination 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 Conguration
Using Two 90° Elbows (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.
Note: Install restrictor
into inner collar of
replace as shown.
45° Elbow
Note: Install
restrictor into inner
collar of replace
as shown.
45° Elbow

www.desatech.com 116646-01H16
VENTING INSTALLATION
Continued
Vertical Venting
V = 40' max.
Figure 24 - Vertical Venting Conguration
With No Horizontal Run (Vertical Round
High Wind Termination Shown)
Note: Install
restrictor into inner
collar of replace
as shown.
45° Elbow
HIGH ALTITUDE INSTALLATION
Your DESA Heating, LLC direct-vent replace
has been tested and approved for elevations
from 0-2000 feet (USA).
Fireplaces for High Altitude (models ending
in -HA) are for installation above 4000 feet
only. These replaces are equipped with parts
specic for higher altitudes.
When installing a non-high altitude replace
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.
IMPORTANT: For horizontal installations
above 2,000 feet, it is recommended that
a 12" extension pipe be added before
starter elbow (see Figure 25) and a round
horizontal termination be used.
Figure 25 - Recommended 12" Extension
for High Altitude Installation
45° Starter
Elbow
12"
Extension
PARTS LIST FOR VENTING KITS
AND COMPONENTS
DESA Heating, LLC (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° Elbow, 7"-12" Adjust-
able 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 Flash-
ing [0/12 - 6/12], 26 Screws)

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116646-01H 17
VENTING INSTALLATION
Continued
Number Description
VKC-58 Corner Vent Kit, Galvanized
(Includes 45° Elbow, 7"-12"
Adjustable Pipe, Wall Firestop,
Horizontal Termination, 6" Pipe,
90° Elbow, 18 Screws)
HHTK-58 High Wind Round Horizontal Termi-
nation Kit (Includes Round Termina-
tion, Wall Firestop, 45° Elbow)
HHT-58 High Wind Round Termination
Kit, Galvanized
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 Termina-
tion, Wall Firestop, 45° Elbow)
HTS-58 Horizontal Square Termination,
Galvanized
VT-58 Vertical Round Termination,
Galvanized
FIREPLACE INSTALLATION
Figure 26 - Blower Model BK
Magnetic
Strips
Exhaust
Port
Screw
Green
Ground
Wire
Spade
Terminals
Side View
Lower Firebox
Cavity
Blower
Location
Number Description
ST-58-14 14" Snorkel Termination, Galva-
nized
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
RF-58 Flat Roof Flashing
PF58-927 Flex Pipe Section 9" to 24"
PF58-1236 Flex Pipe Section 12" to 36"
PF58-1854 Flex Pipe Section 18" to 54"
VKF58-927 Flex Kit (Includes Flex Pipe Wall
Section 9" to 27", Firestop and
Horizontal Square Termination)
CHECK GAS TYPE
Use proper gas type for replace unit you are
installing. If your gas supply is not correct, do
not install replace. See retailer where you
purchased replace for proper replace ac-
cording to your gas type or to purchase gas
conversion kit (see Accessories, page 37).
INSTALLING OPTIONAL BLOWER
ACCESSORY
NOTICE: If installing blower in
an existing replace with gas
connections, shut off gas sup-
ply and disconnect heater from
gas supply. Contact a qualied
service person to do this.
WARNING: If there is a duplex
electrical outlet installed in the
right side of the bottom of the
replace 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.
Model BK Installation
Follow all instructions provided in blower
accessory kit.
1. Attach power cord to blower motor by
rmly pushing two female terminals at end
of power cord onto two spade terminals
on blower motor (see Figure 26).
2. Attach green ground wire from power cord
to blower housing using screw provided
(see Figure 26). Tighten screws securely.
3. Place blower against lower rear wall of
rebox outer wrapper with exhaust port
directed upward. Blower will t inside back
opening and be held in position against
back wall by magnets (see Figure 26).

www.desatech.com 116646-01H18
4. Be certain that all wire terminals are
securely attached to terminals on blower
motor and that screw retaining green
ground wire is tight.
5. Mount speed control box to switch bracket
by placing plastic control shaft forward
through opening in switch bracket (see
Figure 27).
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
provided control knob on shaft.
7. Turn on power to duplex outlet if previ-
ously turned off per warning in column 2,
page 17.
8. Plug in blower power cord.
a. If your rebox is installed as a free-
standing unit with an accessory man-
tel, determine whether power cord will
exit left side or right side of rebox.
Route power cord through exit hole
and plug power cord into a wall recep-
tacle near rebox.
b. If your rebox installation is recessed
and/or prewired, plug power cord into
duplex outlet provided. Refer to your
rebox owner’s manual for instructions
on wiring duplex outlet.
CAUTION: Never touch blow-
er wheel while in operation.
FIREPLACE INSTALLATION
Continued
Figure 27 - Attaching Speed Control to
Firebox
Figure 28 - Location of Wiring Diagram
Decal (Model May Vary From Illustration)
Wiring Diagram
Decal 12" in Front
of Blower
Speed
Control
Control
Shaft
Locknut
Control
Knob
Switch
Bracket
Blower
Plug-In
Duplex Outlet
(Located underneath
rebox oor against
lower right outside wall)
Model BKT Installation
Note: When installing BKT thermostati-
cally controlled blower, you must rst secure
thermal switch bracket to blower if it has not
already been factory installed.
1. Place green ground wire with ring ter-
minal between bottom hole on thermal
switch bracket and top ear hole on blower
assembly. Insert Phillips screw into all
three pieces and tighten securely (see
Figure 29, page 19).
2. Connect wire harness and power cord ter-
minals. Connect blue jumper wire to blower
motor terminal and right side terminal of
thermal switch. Connect black wire to left
side of thermal switch and white wire to
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. Enable just enough to make all con-
nections securely.
9. Check to make sure that power cord is
completely clear of 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 con-
tinuing.
10. Peel off backing paper and stick supplied
wiring diagram decal on rebox bottom
approximately 12" in front of blower (see
Figure 28).

www.desatech.com
116646-01H 19
3. Place blower against lower rear wall of
rebox outer wrapper with exhaust port di-
rected upward and thermodisc positioned
up near fireplace bottom. Thermodisc
must be oriented near replace bottom
as shown in Figure 29, in order to sense
temperature and properly operate. Blower
will be held in position against back wall
by magnets incorporated onto blower
housing (see Figure 29).
4. Be certain that all wire terminals are
securely attached to terminals on blower
motor and thermal switch and that screw
for thermodisc bracket and green ground
wire is tight.
5. Mount speed control box against mount-
ing plate provided in lower fireplace
cavity by placing plastic control shaft
forward through round hole (see Figure
27, page 18).
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
27, page 18).
FIREPLACE INSTALLATION
Continued
Thermodisc
Figure 29 - 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
Figure 30 - 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 dan-
gerous operation. Verify proper
operation after servicing.
Blue
Va riable
Fan Switch Fan Switch
(N.O.)
Green
White
On
11 0/115
V. A.C.
Blower
Motor
Black
Off
1
2
Black
7. Check to make sure that power cord is
completely clear of 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. Cor-
rect accordingly.
8. Turn on power to duplex outlet if previ-
ously turned off per warning in column 2,
page 17.
9. Plug in blower power cord to duplex
outlet.
10. Blower will only run when speed control
knob is in the ON position and thermal
switch senses temperature after replace
begins to heat up. Blower speed can be
adjusted by rotating control knob. To turn
off, turn knob fully counterclockwise until
it clicks off. If blower is ON and has been
running with replace operating, blower
will continue to run for a short time after
replace has been turned off. As thermal
switch cools down, blower shuts down
automatically.
11. Peel off the backing paper and stick the
supplied wiring diagram decal on the
rebox bottom approximately 12" in front
of the blower (see Figure 28, page 18).

www.desatech.com 116646-01H20
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 di-
rectly to the propane/LP supply.
This heater requires an external
regulator (not supplied). Install
the external regulator between
the replace and propane/LP
supply.
WARNING: For natural
gas, never connect heater 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.
For propane/LP connection only, the installer
must supply an external regulator. The ex-
ternal regulator will reduce incoming gas
pressure. You must reduce incoming gas
pressure to between 11" and 14" of water. If
you do not reduce incoming gas pressure,
Figure 31 - External Regulator with Vent
Pointing Down (Propane/LP Only)
Propane/LP
Supply Tank
External
Regulator
with Vent
Pointing
Down
replace regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 31. 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" inside diameter or greater to
allow proper gas volume to re-
place. 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 32, page 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.
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.
FIREPLACE INSTALLATION
Continued