NATURAL GAS MODELS (V)V36N, (V)V42N, CHDV36NR AND CHDV42NR
PROPANE/LP GAS MODELS (V)V36P AND (V)V42P
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
department.
WARNING: Improper installation, 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.
— Installation and service must be
performed by 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
certified kit is used.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not
prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
Save this manual for future reference.
Save this manual for future reference.
TABLE OF CONTENTS
SAFETY INFORMATION
2
TABLE OF CONTENTS
SAFETY INFORMATION ............................................................ 2
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
serviced 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.
Propane/LP gas and natural gas are both odorless. An odor-making
agent is added to each of these gases. The odor helps you detect a gas
leak. However, the odor added to these gases can fade. Gas may be
present even though no odor exists.
CLEANING AND MAINTENANCE ............................................ 29
WARRANTY INFORMATION...................................... Back Cover
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 neighbor’ s phone.
Follow the gas supplier's instructions
• if you cannot reach you gas supplier , call the fire department.
4.Never install the fireplace
• in a recreational vehicle
• in windy or drafty areas where curtains or other combustible
(flammable) objects can make contact with the fireplace front
• in high traffic areas
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.
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108861-01D
SAFETY INFORMATION
PRODUCT IDENTIFICATION
LOCAL CODES
3
3
SAFETY INFORMATION
Continued
7.Do not modify this fireplace under any circumstances. Any
parts removed for servicing must be replaced prior to operating fireplace.
8.Turn fireplace off and let cool before servicing, installing, or
repairing. Only a qualified service person should install, service, or repair this fireplace. Have fireplace inspected annually by a qualified service person.
9.You must keep control compartments, burners, and circulating air passages clean. More frequent cleaning may be needed
due to excessive lint and dust from carpeting, bedding material, etc. Turn of f 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 29.
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 Ca-nadian 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 accessory 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
Piezo
Ignitor
Control
Valve
Lower
Louver
Panel
Figure 1 - Direct-Vent Fireplace with Millivolt Ignition
Glowing
Embers
ON/OFF/REMOTE Switch
(Optional Installation)
Blower Switch
(BKT Standard with
CHDV Models)
Flue Collar
Log
Set
Lava
Rock
Grate
Assembly
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
108861-01D
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PRODUCT FEATURES
PRE-INSTALLATION PREPARATION
4
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 does not require electricity to operate.
• Only the blower requires electricity if installed and if you plan
to install the blower at a later date, do not forget to wire the
outlet at the bottom of the fireplace when framing.
• A piezo ignitor and ceramic electrode create spark to ignite the
pilot light. It does not require any matches, batteries or any other
sources of ignition to light the pilot.
• Each time you turn on your fireplace, you may notice some
amount of condensation on the inside of the fireplace glass. This
is normal and will disappear after 10-20 minutes of operation.
• Your direct-vent gas fireplace system (fireplace and venting) is a
balanced and sealed gas operating unit. It requires approximately
10-20 minutes of operating time before the flame pattern stabilizes.
PRE-INSTALLATION
• 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.
PREPARATION
LOCATION AND SPACE REQUIREMENTS
Determine the safest and most efficient location for your DESA
International 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.
Flush with a wall
Through exterior wall
enclosed in a chase
Figure 2 - Common Fireplace Locations
RW
D
FW
Fireplace sizeD x FW x RW
36"21
42"23 1/4"48"36 1/4"
Figure 3 - Fireplace Bottom Dimensions
1
/8"41"29"
Corner
installation
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108861-01D
PRE-INSTALLATION
PREPARATION
Continued
CLEARANCES
Minimum clearances to combustibles for the fireplace are as follows:
Back, and sides0"/mm
Perpendicular walls6" (152mm)
Floor0"/mm
Ceiling to louver opening42" (1067mm)
Front36" (914mm)
Top of Standoffs0"/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 .
PRE-INSTALLATION PREPARATION
Framing and Finishing
B
A
E
D
F
G
H
Clearances
C
5
5
Nailing T abs
NOTICE: This fireplace is intended for use as supplemental heat. Use this fireplace along with your primary heating system. Do not install this fireplace as
your primary heat source. If you have a central heating system, you may run system’s circulating blower
while using fireplace. This will help circulate the heat
throughout the house. In the event of a power outage,
you can use this fireplace as a heat source.
FRAMING AND FINISHING
Figure 4 shows typical framing of this fireplace. Figure 5 shows
framing for corner installation. All minimum clearances must be met.
For available accessories for this fireplace, see Accessories on pages
42 and 43. 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.
Figure 4 - Framing Clearances for Installation Against an Exterior
Wall
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108861-01D
Figure 6 - Clearances for Combustible Mantels
LOCATION OF TERMINATION CAP
6
LOCATION OF TERMINATION CAP
D
E
V
B
L
V
A = clearance above grade, veranda, porch, deck, or balcony
[*12 inches (305mm) minimum]
B = clearance to window or door that may be opened
[12 inches (305mm) minimum]
C = clearance to permanently closed window [minimum 12 inches
(305mm) recommended to prevent condensation on window]
D = vertical clearance to ventilated soffit located above the terminal
within a horizontal distance of 24 inches (610mm) from the
center-line of the terminal [18 inches (457mm) minimum]
E = clearance to unventilated soffit [12 inches (305mm) 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 (914mm) horizontally from the center-line of the regulator
† 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
C
Fixed
Closed
V
Openable
B
F
TERMINATION CAP
V
Openable
B
AIR SUPPLY INLET
X
B
Fixed
Closed
J
V
A
I = clearance to service regulator vent outlet [*72 inches (1829mm)
J = clearance to non-mechanical air supply inlet to building or the
K = clearance to a mechanical air supply inlet [*72 inches (1829mm)
L = † clearance above paved side-walk or a paved driveway located on
M = clearance under veranda, porch, deck [*12 inches (305mm) minimum ‡]
N = clearance above a roof shall extend a minimum of 24 inches (610mm)
N
H
V
B
X
G
minimum]
combustion air inlet to any other fireplace [*12 inches (305mm)
minimum]
minimum]
public property [*84 inches (2133mm) minimum]
above the highest point when it passes through the roof surface and
any other obstruction within a horizontal distance of 18 inches (457mm)
G
GAS METERRESTRICTED AREA
I
M
V
(TERMINATION PROHIBITED)
N
G
G
X
K
V
V
A
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
NOTICE: Read these instructions completely before attempting installation.
These models are tested and approved for use with DESA International (direct-vent) pipe components and terminations.
The venting system must terminate on the outside of the structure and
can not be attached to a chimney or flue system serving a separate
solid fuel or gas burning appliance. A direct-vent appliance must have
its own venting system. DO NOT common vent this appliance.
These models are approved to be vented either horizontally through
an outside wall or vertically through a roof or chase enclosure using
the following guidelines:
• When venting system terminates horizontally on an outside wall,
you must 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.
• V ent 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.
NOTICE: Failure to follow these instructions will void
the warranty.
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 International
• 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 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 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.
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.
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108861-01D
VENTING INSTALLATION INSTRUCTIONS
8
Installation Planning
VENTING INSTALLATION
INSTRUCTIONS
Continued
INSTALLATION PLANNING
There are two basic types of direct-vent installation:
• Horizontal T ermination
• Vertical Termination
Horizontal Termination Installation
IMPORTANT:
portion of wall firestop. Horizontal installations using round termination require exterior portion of wall firestop available only in vent
kit 01491 for V and VV Series or SDHTRK-58 for CHDV Series
(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 approximately one-quarter turn until the sections are fully locked
(see Figure 8).
ported 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.
configuration of the elbow by cutting, twisting, bending, etc.
4.Assemble the desired combination of pipe and elbows to the
fireplace flue collar. If there are long portions of venting run,
pre-assembled pipe sections may be installed as subassemblies
for convenience.
5.Carefully determine the location where the vent pipe assembly
will penetrate the outside wall. The center of the hole should line
up with the center-line of the horizontal vent pipe. Mark the wall
for a 10 3/4" x 10 3/4" square hole. Cut and frame the square hole in
the exterior wall where the vent will be terminated. If the wall
being penetrated is constructed of noncombustible material, such
as masonry block or concrete, a 8 1/2" hole with zero clearance is
acceptable (see Figure 9).
Horizontal square terminations require only inner
Note:
Horizontal runs of vent must be sup-
IMPORTANT :
Do not attempt to alter the
Female Locking Lugs
Figure 8 - Vent Pipe Connections
Vent Opening
Combustible Wall
3
/4"
10
(273mm)
3
10
/4"
(273mm)
Vent Opening
Noncombustible Wall
8 1/2"
(216mm)
Figure 9 - Vent Opening Requirements
10 3/4" Inside Framing
(273mm)
(Framing
Detail)
Male
Slots
Center
of Hole
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108861-01D
VENTING INSTALLATION
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.
provided should be replaced with appropriate fasteners for
stucco, brick, concrete, or other types of sidings.
Combustible Exterior W all: For vinyl siding, stucco, or wood
exteriors, a siding standoff must be installed between the vent
cap and exterior wall. The siding standoff prevents excessive
heat from damaging the siding materials. Siding material must
be cut to accommodate standoff. Bolt the vent cap to the standoff. Apply non-hardening mastic around outside edge of standoff. Position the standoff/cap assembly in the center of the 10
3
/4" square hole and attach to exterior wall with wood screws
provided (see Figure 11). The siding standoff must sit flush
against the exterior fascia material.
7.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".
Note:
The four wood screws
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
Cut Siding Away
to Fit Standoff
Standoff
Apply Mastic
to All Four Sides
Figure 11 - Installing Siding Standoff
Interior Wall
Surface
Vent Cap
(Horizontal
Termination)
Wood Screw
Vent Cap
Screws
Wall
Firestop
Horizontal
Vent Pipe
9
9
Apply Mastic to
All Four Sides
Figure 10 - Installing Horizontal Vent Cap
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108861-01D
Vent Cap
Wood Screw
Screw
Figure 12 - Connecting Vent Cap with Horizontal Vent Pipe
VENTING INSTALLATION INSTRUCTIONS
10
Installation Planning (Cont.)
VENTING INSTALLATION
INSTRUCTIONS
Continued
9.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 material if needed. Nail or screw side flanges to framing to secure
unit in place.
securing. If fireplace is not level it will not work properly .
Direct Vent
Pipe
IMPORTANT:
Minimum Pipe
Overlap 1
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
45° Elbow
Horizontal High
Wind Square
Termination
Maintain 1"
Minimum Air
Space Around
Outer Pipe When
Penetrating a Wall
3
/4" x 10 3/4"
10
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:
have a 1/4" rise for every 12" of run toward the termination.
Exterior Portion of Wall
Firestop (Round
Termination Only)
Round Termination
(Kit 01491 for V36, V42 Series
Kit SDHTRK-58 CHDV Series)
Horizontal
Round
Termination
Figure 14 - Horizontal Termination Configuration for Square or
Round Terminations
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108861-01D
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
*43
54
66
78
90
* Ground Floor Corner Venting
Vertical (V)RequiredHorizontal (H)
36"42"Vertical Pipe(36"/42")
1
/2" min.46 1/4" min.None30" max.
1
/2" min.57 1/4" min.1 ft.48" max.
1
/2" min.69 1/4" min.2 ft.60" max.
1
/2" min.81 1/4" min.3 ft.84" max.
1
/2" min.93 1/4" min.4 ft.20' max.
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
Not to Exceed
(H) Limits
90° Elbow
Wall
Firestop
45° Elbow
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
Termination
12"
Minimum
Figure 16 - Snorkel Termination Configurations for Below Ground Installation
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108861-01D
Snorkel
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.
Figure 18 - Horizontal Termination Configuration for Venting Using Two 90° Elbows with Termination at 90° with Fireplace
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108861-01D
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation for Vertical Termination
13
13
INSTALLATION FOR VERTICAL TERMINATION
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 19) to avoid cutting load
bearing members.
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 vertical rise of the venting system and
any maximum horizontal offset limitations.
2.Set the fireplace in desired location. Drop a plumb line down
from the ceiling to the position of the fireplace exit flue. Mark
the center point where the vent will penetrate the ceiling. Drill
a small locating hole at this point.
Drop a plumb line from the inside of the roof to the locating
hole in the ceiling. Mark the center point where the vent will
penetrate the roof. Drill a small locating hole at this point.
Wall Strap
Figure 19 - Offset with Wall Strap and 45° Elbows
Flat Ceiling Installation
1.Cut a 10 3/4" square hole in the ceiling using the locating hole as
a center point. The opening should be framed to 10 3/4"x10 3/4"
(273mm x 273mm) inside dimensions, as shown in Figure 9 on
page 8 using framing lumber the same size as the ceiling joists.
If the area above the ceiling is an insulated ceiling or a room,
nail firestop from the top side. This prevents loose insulation
from falling into the required clearance space. Otherwise, install firestop below the framed hole. The firestop should be installed with no less than three nails per side (see Figure 20).
Note:
Pay special attention to these instal-
Roof Flashing
45° Elbow
Ceiling Firestop
2.Assemble the desired lengths of pipe and elbows necessary to
reach from the fireplace flue up through the firestop. Be sure
all pipe and elbow connections are fully twist-locked (see Figure 8, page 8).
3.Cut a hole in the roof using the locating hole as a center point.
(Cover any exposed open vent pipes before cutting hole in roof.)
The 10
actual length may be larger depending on the pitch of the roof.
There must be a 1" clearance from the vent pipe to combustible
materials. Frame the opening as shown in Figure 9, page 8.
4.Connect a section of pipe and extend up through the hole.
Note:
support the vent pipe every 3 feet. Use wall straps for this
purpose (see Figure 19). Whenever possible, use 45° elbows
instead of 90° elbows. The 45° elbow offers less restriction to
the flow of the flue gases and intake air.
5.Place the flashing over the pipe section(s) extending through
the roof. Secure the base of the flashing to the roof and framing with roofing nails. Be sure roofing material overlaps the
top edge of the flashing as shown in Figure 19. There must be
a 1" clearance from the vent pipe to combustible materials.
6.Continue to add pipe sections until the height of the vent cap
meets the minimum building code requirements described in
Figure 7 on page 6.
steep roof pitches. Nearby trees, adjoining rooflines, steep
pitched roofs, and other similar factors may cause poor draft
or down-drafting in high winds. Increasing the vent height may
solve this problem.
7.Twist-lock the vent cap onto the last section of vent pipe.
Note:
floor, including storage spaces and closets, you must enclose pipe. You
may frame and sheetrock the enclosure with standard construction
material. Make sure and meet the minimum allowable clearances to
combustibles. Do not fill any of the required air spaces with insulation.
If area above is a room, install
firestop above framed hole.
Figure 20 - Installing Firestop
3
/4"x10 3/4" hole must be measured on the horizontal;
If an offset is needed to avoid obstructions, you must
Note
: You must increase vent height for
If the vent pipe passes through any occupied areas above the first
If area above is not a room, install
firestop below framed hole.
108861-01D
For more information, visit www.desatech.com
For more information, visit www.desatech.com
VENTING INSTALLATION INSTRUCTIONS
14
Installation for Vertical Termination (Cont.)
VENTING INSTALLATION
INSTRUCTIONS
Continued
Vertical Termination Configurations
Figures 21 through 24 show four different configurations for vertical termination.