Desa VTC36N User Manual
DIRECT-VENT FIREPLACE
OWNER’S OPERATION AND
INSTALLATION MANUAL
NATURAL GAS MODELS (V)TC36N SERIES
PROPANE/LP GAS MODEL (V)TC36P SERIES
WARNING: If the information in this manual is not followed
exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch
• Do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire de
partment.
-
WARNING: Improper installation, adjustment, altera
tion, service or maintenance
can cause injury or property
damage. Refer to this manual
for correct installation and
operational procedures.
For assistance or additional
information consult a quali
fied installer, service agency
or the gas supplier.
Installation and service
must be performed by a
qualified installer, service
agency or the gas supplier.
-
-
This appliance may be installed in an aftermarket*, permanently located, manufactured (mobile) home, where not prohibited by state or local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This appliance
is not convertible for use with other gases, unless a certified kit is used.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
Save this manual for future reference.
For more information, visit www.desatech.com
TABLE OF CONTENTS
2
SAFETY INFORMATION
TABLE OF CONTENTS
SAFETY INFORMATION ..............................................................2
PRODUCT IDENTIFICATION ......................................................
LOCAL CODES ............................................................................3
PRODUCT FEATURES ................................................................ 4
PRE-INSTALLATION PREPARATION ..........................................
LOCATION OF TERMINATION CAP ............................................6
VENTING INSTALLATION INSTRUCTIONS ................................7
FIREPLACE INSTALLATION .....................................................
OPERATING FIREPLACE ..........................................................
INSPECTING BURNERS ...........................................................26
16
23
CLEANING AN
TROUBLESHOOTING ...............................................................28
3
REPLACEMENT PARTS ............................................................
SPECIFICATIONS ......................................................................
SERVICE HINTS ........................................................................
4
TECHNICAL SERVICE ..............................................................
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ........32
ACCESSORIES .........................................................................36
OWNER'S REGISTRATION FORM ...........................................
WARRANTY INFORMATION .......................................
D MAINTENANCE .............................................. 27
31
31
31
31
37
Back Page
SAFETY INFORMATION
WARNING: This product contains and/or generates
chemicals known to the State of California to cause
cancer or birth defects or other reproductive harm.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate or
service this fireplace. Improper use of this fireplace
can cause serious injury or death from burns, fire,
explosions, electrical shock and carbon monoxide
poisoning.
DANGER: Carbon monoxide poisoning may lead
to death!
This fireplace must be installed by a qualified (certified or licensed)
service person. It has a sealed gas combustion chamber that uses a
coaxial pipe (pipe within a pipe and having the same center) venting
system. It brings in fresh air for combustion through the outer pipe and
combustion gases are exhausted through the inner pipe. If the glass
door assembly and venting pipe are not properly seated, connected
and sealed, carbon monoxide leakage (spillage) can occur.
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoning resemble the flu, with headaches, dizziness or nausea.
If you have these signs, the fireplace may not have been installed
properly. Get fresh air at once! Have fireplace inspected and ser
viced by a qualified service person. Some people are more affected
by carbon monoxide than others. These include pregnant women,
people with heart or lung disease or anemia, those under the influence 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 fireplace.
WARNING: Any change to this fireplace or its
controls can be dangerous.
1. This appliance is only for use with the type of gas indicated on
the rating plate. This appliance is not convertible for use with
other gases unless a certified kit is used.
2. For propane/LP fireplace, do not place propane/LP supply
tank(s) inside any structure. Locate propane/LP supply tank(s)
outdoors. To prevent performance problems, do not use 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 neighborʼs phone.
Follow the gas supplier's instructions
• if you cannot reach you gas supplier, call the fire depart-
-
ment.
4. Never install the fireplace
• in a recreational vehicle
• in windy or drafty areas where curtains or other combustible
(flammable) objects can make contact with the fireplace
front
• in high traffic areas
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SAFETY INFORMATION
PRODUCT IDENTIFICATION
LOCAL CODES
3
3
SAFETY INFORMATION
Continued
5. This fireplace reaches high temperatures. Keep children and
adults away from hot surfaces to avoid burns or clothing ignition. Fireplace will remain hot for a time after shutdown. Allow
surfaces to cool before touching.
6. Carefully supervise young children when they are in the room
with fireplace.
7. Do not modify this fireplace under any circumstances. Any
parts removed for servicing must be replaced prior to operating
fireplace.
8. Turn fireplace off and let cool before servicing, installing or
repairing. Only a qualified service person should install, service
or repair this fireplace. Have fireplace inspected annually by a
qualified service person.
9. You must keep control compartments, burners and circulating
air passages clean. More frequent cleaning may be needed
due to excessive lint and dust from carpeting, bedding mate
rial, etc. Turn off the gas valve and pilot light before cleaning
fireplace.
10. Have venting system inspected annually by a qualified service
person. If needed, have venting system cleaned or repaired. See
Cleaning and Maintenance, page 27.
11. Keep the area around your fireplace clear of combustible materials, gasoline and other flammable vapor and liquids. Do
not run fireplace where these are used or stored. Do not place
items such as clothing or decorations on or around fireplace.
12. Do not use this fireplace to cook food or burn paper or other
objects.
13. Do not use any solid fuels (wood, coal, paper, cardboard, etc.)
in this fireplace. Use only the gas type indicated on fireplace
nameplate.
14. This appliance, when installed, must be electrically grounded
in accordance with local codes or, in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70 or
the Canadian Electrical Code, CSA C22.1.
15. Do not use fireplace if any part has been exposed to or under
water. Immediately call a qualified service person to arrange
for replacement of the unit.
16. Do not operate fireplace if any log is broken.
17. Do not use a blower insert, heat exchanger insert or other ac
cessory not approved for use with this fireplace.
18. Do not operate fireplace with glass door removed, cracked or
broken.
19. Provide adequate clearances around air openings.
PRODUCT IDENTIFICATION
Upper Louver
Panel
Nailing
Flange
Glass
Door
Assembly
Flue Collar
-
Lower
Louver
Panel
Control
Valve with
Piezo Ignitor
Figure 1 - Direct-Vent Fireplace with Millivolt Ignition
Glowing
Embers
Burner
Assembly
Switch Bracket for
Optional Remote and
Blower
LOCAL CODES
Install and use fireplace with care. Follow all local codes. In the
absence to local codes, use the current National Fuel Gas Code
ANSI Z223.1/NFPA 54* (USA) or the current CSA-B149.1 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
Log
Set
Lava
Rock
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PRODUCT FEATURES
D
RW
FW
4
PRE-INSTALLATION PREPARATION
Location and Space Requirements
PRODUCT FEATURES
These are a few facts that can help you understand and enjoy your
direct-vent fireplace:
• The venting system may be routed to the outside of your home
in several ways. It may vent through the roof (vertical) or it may
vent to an outside/exterior wall (horizontal). The vent pipe installation is very important to allow for proper operation. You must
follow the venting instructions very carefully for either vertical
or horizontal applications.
• This fireplace may be installed in any room of your house provided
all local codes and these installation instructions are followed.
• This fireplace requires a wall switch, hand-held remote or wall
thermostat (millivolt) for operation (see Accessories, page 36).
• This fireplace does not require electricity to operate.
• Only the blower requires electricity if installed and if you plan to
install the blower at a later date, do not forget to wire the outlet
at the bottom of the fireplace when framing.
• A piezo ignitor and ceramic electrode create spark to ignite the
pilot light. It does not require any matches, batteries or any other
sources of ignition to light the pilot.
• Each time you turn on your fireplace, you may notice some
amount of condensation on the inside of the fireplace glass. This
is normal and will disappear after 10-20 minutes of operation.
• Your direct-vent gas fireplace system (fireplace and venting) is a
balanced and sealed gas operating unit. It requires approximately 1020 minutes of operating time before the flame pattern stabilizes.
• Your fireplace 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 fireplace,
except where standoff spacers are integrally attached. If standoff
spacers are attached to your fireplace, these spacers can be placed
directly against wall or framing material. See framing details on
page 5.
• If you plan on installing a television or entertainment center recessed above your fireplace, it is recommended that you maintain
a minimum 18" above top of louver opening.
• When locating termination cap, it is important to observe the
minimum clearances shown in Figure 7, page 6.
• If recessing into a wall, you can avoid extra framing by positioning your fireplace against an already existing framing member.
• Do not recess termination cap into a wall or siding.
• You may paint the termination cap with 450ºF (232ºC) heatresistant paint to coordinate with the exterior finish.
• There must not be any obstruction such as bushes, garden sheds,
fences, decks or utility buildings within 24" from the front of the
termination cap.
• Do not locate termination cap where excessive snow or ice
build up may occur. Be sure to clear vent termination area after
snow falls to prevent accidental blockage of venting system.
When using snow blowers, do not direct snow towards vent
termination area.
PRE-INSTALLATION
PREPARATION
LOCATION AND SPACE REQUIREMENTS
Determine the safest and most efficient location for your DESA
direct-vent fireplace. Make sure that rafters and wall studs are not
in the way of the venting system. Choose a location where the heat
output is not affected by drafts, air conditioning ducts, windows
or doors. Figure 2 shows some common locations. Be aware of all
restrictions and precautions before deciding the exact location for
your fireplace and termination cap.
When deciding the location of your fireplace, follow these rules:
• Do not connect this fireplace venting to a chimney flue serving
a separate solid-fuel burning fireplace or appliance.
• Due to high temperatures, do not locate this fireplace in high traffic
areas, windy or drafty areas or near furniture or draperies.
• Proper clearances must be maintained.
• If your fireplace is to be installed directly on carpeting, vinyl tile
or any combustible material other than wood, it must be installed
on a metal or wood panel extending the full width and depth of
the fireplace. See Figure 3.
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Figure 2 - Common Fireplace Locations
Figure 3 - Fireplace Bottom Dimensions
Through exterior wall
enclosed in a chase
Flush with a wall
Corner
installation
29"
21 1/8"
41"
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A
B
E
F
G
H
D
C
Nailing Tabs
C
B
A
D
E
F
G
To
p of Louver Opening
3
2
1
4
5
6
7
Wa
ll
PRE-INSTALLATION PREPARATION
Clearances
Framing and Finishing
5
5
PRE-INSTALLATION
PREPARATION
Continued
CLEARANCES
Minimum clearances to combustibles for the fireplace are as follows:
*Back and sides 0"/mm
Perpendicular walls 6" (152mm)
Floor 0"/mm
Ceiling to louver opening 42" (1067mm)
Front 36" (914mm)
Top of Standoffs 0"/mm
Vent (See venting instructions for
specific venting clearances.)
Combustible material with a maximum thickness of 5/8" may be
flush with the top front of fireplace.
* For back and sides of fireplace, do not pack with insulation or
other materials. Zero inch clearance to combustible materials are
for framing purpose only.
NOTICE: This fireplace is intended for use as supple
mental heat. Use this fireplace along with your primary
heating system. Do not install this fireplace as your
primary heat source. If you have a central heating
system, you may run system’s circulating blower
while using fireplace. This will help circulate the heat
throughout the house. In the event of a power outage,
you can use this fireplace as a heat source.
-
For available accessories for this fireplace, see Accessories on page
36. If you are using a separate combustible mantel piece, refer to
Figure 6 for proper installation height. You can install noncombustible mantels at any height above the fireplace.
Note: Noncombustible mantels may discolor!
15"
35 3/4"
Figure 5 - Framing Clearances for Corner Installation
13 3/4"
10 3/8"
41"
41 1/4"
68 1/2"
49 5/8"
FRAMING AND FINISHING
Figure 4 shows typical framing of this fireplace. Figure 5 shows framing for corner installation. All minimum clearances must be met.
Figure 4 - Framing Clearances for Installation Against an
Exterior Wall
116192-01B
36 1/8"
41 1/4"
23 1/2"
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Ref. Mantel Depth Ref. Mantel from Top
of Louver Opening
1 14" (356mm) A 16" (406mm)
2 12" (305mm) B 14" (356mm)
3 10" (254mm) C 12" (305mm)
4 8" (203mm) D 10" (254mm)
5 6" (152mm) E 8" (203mm)
6 4" (101mm) F 6" (152mm)
7 2" (51mm) G 4" (101mm)
Figure 6 - Clearances for Combustible Mantels
Fixed
Closed
Openable
Fixed
Closed
Openable
V
V
V
V
V
V
V
V
X
X
V
X
G
G
J
F
B
B
K
N
H
I
A
N
E
L
D
B
M
A
C
B
V
V
A
G
G
B
TERMINATION CAP
AIR SUPPLY INLET
GAS METER RESTRICTED AREA
(TERMINATION PROHIBITED)
A = clearance above grade, veranda, porch, deck, or balcony
[*12 inches (30.5mc) minimum]
B = clearance to window or door that may be opened
[12 inches (30.5cm) minimum]
C = clearance to permanently closed window [minimum 12 inches
(30.5cm) recommended to prevent condensation on window]
D = vertical clearance to ventilated soffit located above the terminal
within a horizontal distance of 24 inches (61cm) from the
center-line of the terminal [18 inches (45.7cm) minimum]
E = clearance to unventilated soffit [12 inches (30.5cm) minimum]
F = clearance to outside corner (see below)
G = clearance to inside corner (see below)
H = *not to be installed above a meter/regulator assembly within
36 inches (91.4cm) horizontally from the center-line of the regulator
I = clearance to service regulator vent outlet [*72 inches (182.9cm)
minimum]
J = clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other fireplace [*12 inches (30.5cm)
minimum]
K = clearance to a mechanical air supply inlet [*72 inches (182.9cm)
minimum]
L = † clearance above paved side-walk or a paved driveway located on
public property [*84 inches (213.3cm) minimum]
M = clearance under veranda, porch, deck [*12 inches (30.5cm) minimum ‡]
N = clearance above a roof shall extend a minimum of 24 inches (61cm)
above the highest point when it passes through the roof surface and
any other obstruction within a horizontal distance of 18 inches (45.7cm)
† vent shall not terminate directly above a side-walk or paved driveway which is located between two
single family dwellings and serves both dwellings*
‡ only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*
* as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A.
Note: Local codes or regulations may require different clearances
A = 6" (15.2cm)
Inside Corner
V
B
E
V
B = 6" (15.2cm)
C = Maximum depth of 48" (121.9cm) for
recessed location
D = Minimum width for back wall of
recessed location Combustible - 38" (965mm)
Noncombustible - 24" (61cm)
E = Clearance from corner in
recessed location Combustible - 6" (15.2cm)
Noncombustible - 2" (5.1cm)
Outside Corner Recessed Location
G
H
G = 12" (30.5cm) minimum clearance
Balcony with No Side Wall
V
J
Combustible &
Noncombustible
H = 24" (61cm)
J = 20" (50.8cm)
Balcony with Perpendicular Side Wall
C
D
C
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
LOCATION OF TERMINATION CAP
6
LOCATION OF TERMINATION CAP
Figure 7 - Minimum Clearances for Termination Cap
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116192-01B
VENTING INSTALLATION INSTRUCTIONS
Installation Precautions
7
7
VENTING INSTALLATION
INSTRUCTIONS
NOTICE: Read these instructions completely before
attempting installation.
These models are tested and approved for use with DESA (directvent) pipe components and terminations.
The venting system must terminate on the outside of the structure and
can not be attached to a chimney or flue system serving a separate
solid fuel or gas burning appliance. A direct-vent appliance must have
its own venting system. DO NOT common vent this appliance.
These models are approved to be vented either horizontally through
an outside wall or vertically through a roof or chase enclosure using
the following guidelines:
• When venting system terminates horizontally on an outside
wall, you may install a standoff if the termination cap is to be
installed directly on a combustible finish such as vinyl, wood,
stucco, etc.
• Never run the vent downward as this may cause excessive temperatures which could cause a fire.
• Vent pipe air space clearances to combustibles are 1" on all sides
except on the horizontal sections, which requires 2" clearance
from the top of the pipe. Where the termination cap penetrates
a combustible wall, 1" air space clearance is required.
• Snorkel terminations are required when minimum clearance to
grade cannot be met (see Figure 16 on page 11).
• Have fireplace and selected vent components on hand to help
determine the exact measurements when elbowing or offsetting.
Always use wall firestops when penetrating walls and firestops
when penetrating ceilings or attic spaces.
• Install horizontal venting with a 1/4" rise for every 12" of run
toward the termination.
INSTALLATION PRECAUTIONS
• Wear gloves and safety glasses for protection
• Use extreme caution when using ladders or when on roof
tops
• Be aware of electrical wiring locations in walls and ceilings
The following actions will void the warranty on your venting
system:
• Installation of any damaged venting component
• Unauthorized modification of the venting system (Do not cut
or alter vent components)
• Installation of any component part not manufactured or
approved by DESA
• Installation other than as instructed by these instructions
WARNING: This gas fireplace and vent assembly
must be vented directly to the outside. The venting
system must NEVER be attached to a chimney serv
ing a separate solid fuel burning appliance. Each
direct-vent gas appliance must use a separate vent
system. Do not use common vent systems.
WARNING: Vent pipe air space clearances to combustibles are 1" on all sides except on the horizontal
sections, which require 2" clearances from the top of
the pipe. Where the termination cap penetrates a com
bustible wall, 1" air space clearance is required.
-
-
WARNING: Read all instructions completely and
thoroughly before attempting installation. Failure to
do so could result in serious injury, property damage
or loss of life.
NOTICE: Failure to follow these instructions will void
the warranty.
NOTICE: Do not seal termination cap to vent pipe.
Cap must be removable for vent inspection and
maintenance.
116192-01B
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VENTING INSTALLATION INSTRUCTIONS
(Framing
Detail)
10
3
/4"
(273 mm)
10
3
/
4
" Inside Framing
(273 mm)
10
3
/4"
(273 mm)
8
1
/2"
(216 mm)
Vent Opening
Combustible Wall
Ve
nt Opening
Noncombustible Wall
8
Installation Planning
VENTING INSTALLATION
INSTRUCTIONS
Continued
INSTALLATION PLANNING
There are two basic types of direct-vent installation:
• Horizontal Termination
• Vertical Termination
Horizontal Termination Installation
IMPORTANT: Horizontal square terminations require only in-
ner portion of wall firestop. Horizontal installations using round
termination require exterior portion of wall firestop (see Figure
14, page 10).
1. Set the fireplace in its desired location and determine the route
your horizontal venting will take. Do not secure the fireplace
until all venting has been installed. Some installations require
sliding the fireplace in and out of position to make final venting
connections. Figures 14 through 18 on pages 10 through 12 show
different configurations for venting with horizontal termination
that will help you decide which application best suits your 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 fireplace.
2. Direct vent pipe sections and components are designed with
special twist-lock connections.
Twist-Lock Procedure: The female ends of the pipes have
locking lugs (indentations). These lugs will slide straight into
matching slots on the male ends of adjacent pipes. Push pipe
sections together and twist one section clockwise approxi
mately one-quarter turn until the sections are fully locked (see
Figure 8).
every three feet. Use wall straps for this purpose.
3. Use a 45° elbow to connect venting system to fireplace flue
collar. The elbow is designed to be twist-locked onto the flue
collar as described in step 2. IMPORTANT: Do not attempt
to alter the configuration of the elbow by cutting, twisting,
bending, etc.
4. Assemble the desired combination of pipe and elbows to the
fireplace flue collar. If there are long portions of venting run,
pre-assembled pipe sections may be installed as subassemblies
for convenience.
5. Carefully determine the location where the vent pipe assembly
will penetrate the outside wall. The center of the hole should
line up with the center-line of the horizontal vent pipe. Mark the
wall for a 10
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
zero clearance is acceptable (see Figure 9).
Note: Horizontal runs of vent must be supported
3
/4" x 10 3/4" square hole. Cut and frame the square
1
/2" hole with
Female
Locking
Lugs
Figure 8 - Vent Pipe Connections
-
Figure 9 - Vent Opening Requirements
Male
Slots
Center
of Hole
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116192-01B
VENTING INSTALLATION
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
9
9
INSTRUCTIONS
Continued
WARNING: Do not recess vent termination into
any wall. This will cause a fire hazard.
6. Noncombustible Exterior Wall: Position the horizontal vent
cap in the center of the 8 1/2" round hole and attach to the
exterior wall with four wood screws provided. Before 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 fasteners for
stucco, brick, concrete or other types of sidings.
Combustible Exterior Wall: For vinyl siding, stucco or wood
exteriors, a siding standoff may be installed between the vent
cap and exterior wall. The siding standoff prevents excessive
heat from damaging the siding materials. Siding material
must be cut to accommodate standoff. Bolt the vent cap to the
standoff. Apply non-hardening mastic around outside edge of
standoff. Position the standoff/cap assembly in the center of
3
the 10
screws provided (see Figure 11). The siding standoff must sit
flush against the exterior fascia material.
7. Combustible Exterior Wall Only: Slide the wall firestop over
the vent pipe before connecting horizontal run to vent cap (see
Figure 12).
8. Carefully move fireplace, with vent assembly attached, toward
wall and insert vent pipe into horizontal termination. The pipe
overlap should be a minimum of 11/4" (see Figure 13, page 10.
/4" square hole and attach to exterior wall with wood
Cut Siding Away
to Fit Standoff
Standoff
Wood Screw
Vent Cap
Apply Mastic
to All Four Sides
Figure 11 - Installing Siding Standoff (Combustible
Exterior Wall)
Interior Wall
Surface
Vent Cap
(Horizontal
Termination)
Screws
Wall
Firestop
Horizontal
Vent Pipe
Figure 10 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
116192-01B
Screw
Figure 12 - Connecting Vent Cap with Horizontal Vent Pipe
Vent Cap
Wood Screw
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10
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
VENTING INSTALLATION
INSTRUCTIONS
Continued
9. Combustible Exterior Wall Only: Slide wall firestop against
interior wall surface and attach with screws provided. See
Figure 13 for horizontal termination details.
10. Place fireplace into position and shim with noncombustible ma
terial if needed. Nail or screw side flanges to framing to secure
unit in place. IMPORTANT
securing. If fireplace is not level it will not work properly.
Minimum Pipe
Overlap 1
Direct Vent
Pipe
Wall
Firestop
1
/4"
: Make sure fireplace is level before
Siding Standoff
Screws
WARNING: Never run vent downward as this may
cause excessive temperatures which could cause a
fire. Operation of improperly installed and maintained
venting system could result in serious injury, property
damage or loss of life.
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
45° Elbow
Adjustable
Pipe 12" Max.
Wall Firestop
Maintain 1"
Minimum Air
Space Around
Outer Pipe When
Penetrating a Wall
3
10
/4" x 10
3
/4" Framed
Opening
Figure 13 - Typical Horizontal Termination Cap Mounting with
Additional Siding Standoff Installed
High Wind
Termination
Apply Mastic to
Outside Edge of
Standoff
Exterior Wall
with Vinyl Siding
Horizontal Termination Configurations
Figures 14 through 18 show different configurations and alternatives
for venting with horizontal termination. Each figure includes a chart
with critical minimum and maximum dimensions which MUST be
met. IMPORTANT: Remember that a horizontal run of venting must
have a 1/4" rise for every 12" of run toward the termination.
NOTICE: Do not seal termination cap to vent pipe.
Cap must be removable for vent inspection and
maintenance.
Square Termination
Vertical (V) Horizontal (H)
3
/4" min. 17" max.
32
45° Elbow
Wall
Firestop
Figure 14 - Horizontal Termination Configuration for Square or
Round Terminations
Exterior Portion of
Wall Firestop (Round
Termination Only)
Horizontal
Round
Termination
Round Termination
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116192-01B
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
11
11
CORNER INSTALLATION
Recommended Applications:
• Corner ground floor installation
• Ground floor installation where pipe vents horizontally through wall
(over 12" horizontal pipe)
• Basement installation where one foot clearance from ground to
termination is possible
Not to Exceed
(H) Limits
Square
Termination
Wall
Firestop
Figure 15 - Horizontal Termination Configuration for Corner Installation Using One 90° Elbow
45°
Elbow
90° Elbow
As Required for (V)
See Chart for Pipe
Section Required
Required
Vertical (V)
*43
1
54
1
66
1
78
1
90
* Ground Floor Corner Venting
Vertical Pipe Horizontal (H)
1
/2" min. None 30" max.
/2" min. 1 ft. 48" max.
/2" min. 2 ft. 60" max.
/2" min. 3 ft. 84" max.
/2" min. 4 ft. 20' max.
Not to Exceed
(H) Limits
90° Elbow
45° Elbow
Wall
Firestop
Square
Termination
12" Minimum
SNORKEL TERMINATION INSTALLATION
Recommended Applications:
• Installations requiring a vertical rise on building exterior
• Any installation using snorkel termination to achieve one foot above ground
Snorkel terminations are available for installations requiring a vertical rise on the exterior of the building. If installing snorkel termination below grade, you must provide proper drainage to prevent water from entering snorkel
termination (see Figure 16). Do not back fill around snorkel termination.
Snorkel
Snorkel Termination
12"
Minimum
Figure 16 - Snorkel Termination Configurations for Below Ground Installation
116192-01B
www.desatech.com
Termination
12"
Minimum
Adequate
Drainage
90° Elbow
45°
Elbow
Wall
Firestop
Snorkel
Termination
12"
Minimum
VENTING INSTALLATION INSTRUCTIONS
12
Installation Planning (Cont.)
VENTING INSTALLATION
INSTRUCTIONS
Continued
HORIZONTAL SYSTEM INSTALLATION USING TWO 90°
ELBOWS
The following configurations show the minimum vertical rise requirements for a horizontal system using two 90° elbows.
Venting with Two 90° Elbows
Vertical (V) Horizontal (H1) Horizontal (H1) +
Horizontal (H
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.
)
2
45°Elbow
Figure 17 - Horizontal Termination Configuration for Venting Using Two 90° Elbows
Venting with Two 90° Elbows
Vertical (V) Horizontal (H1) +
Horizontal (H2)
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
20' max. 20' max.
Figure 18 - Horizontal Termination Configuration for Venting Using Two 90° Elbows with Termination at 90° with Fireplace
45° Elbow
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116192-01B
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