Illustrated Parts Breakdown and Parts List........ 38
Warranty Information ........................... Back Cover
WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause in-
jury or property damage.
Refer to this manual for
correct installation and
operational procedures.
For assistance or additional information con-
sult a qualied installer,
service agency or the gas
supplier.
This appliance may be in-
stalled in an aftermarket,*
per ma ne nt ly loc at ed ,
manufactured (mobile)
home, where not prohibited 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 certied kit is used.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
State of Massachusetts:
The installat ion mus t
be made by a licensed
plumber or gas tter in
the Commonwealth of
Massachusetts.
WARNING: This product
contains and/o r g e nerates
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 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 qualied (certied 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.
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116646-01D2
SAFETY INFORMATION
Continued
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the u, with headaches, dizziness or nausea. If you have these signs,
the replace may not be working properly. Get fresh air at once! Have replace serviced. Some
people are more affected by carbon monoxide than
others. These include pregnant women, people with
heart or lung disease or anemia, those under the
inuence of alcohol and those at high altitudes.
Natural and Propane/LP Gas: Natural and pro-
pane/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 blower 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 indicated on replace name plate.
Carefully supervise young chil-
dren when they are in the room
with replace.
This replace 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.
Do not operate replace with
glass door removed, cracked
or broken.
Keep the appliance area clear
and free from combustible materials, gasoline and other ammable vapors and liquids.
Do not place clothing or other
ammable material on or near
replace. Never place any objects 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 certied 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 (ammable) objects can make
contact with the replace front
• in high trafc areas
5. Do not modify this replace under any circumstances. Any parts removed for servicing must
be replaced prior to operating replace.
6. Turn replace off and let cool before servicing,
installing or repairing. Only a qualied service
person should install, service or repair this
replace. Have replace inspected annually
by a qualied 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.
8. Have venting system inspected annually by a
qualied service person. If needed, have venting system cleaned or repaired. See Cleaning and Maintenance, page 31.
116646-01D3
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SAFETY INFORMATION
Continued
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 codes, with the
National Electrical Code, ANSI/NFPA 70 or
the Canadian Electrical Code, CSA C22.1.
11. Do not use replace if any part has been under
water. Immediately call a qualied service person to arrange for replacement of the unit.
12. Do not operate replace if log is broken.
13.
Prov ide adequat e clearan ce s around air
openings.
PRODUCT
IDENTIFICATION
Upper Louver Panel
Nailing
Flange
Piezo
Ignitor
Control
Valve
Lower
Louver
Panel
Glowing
Embers
ON/OFF/REMOTE Switch
(Optional Installation)
Figure 1 - Direct-Vent Fireplace with
Millivolt Ignition
Glass Door Assembly
Flue
Collar
Grate
Assembly
Blower Switch
(Optional Installation)
Lava
Rock
Log
Set
LOCAL CODES
Install and use replace with care. Follow all local
codes. In the absence to local codes, use the current National Fuel Gas Code ANSI Z223.1/NFPA
54* (USA) or the current CSA-B149.1 Installation
Code (Canada).
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
PRODUCT FEATURES
These are a few facts that can help you understand
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 replace system (replace
and venting) is a balanced and sealed gas operating unit. It requires approximately 10-20
minutes of operating time before the ame
pattern stabilizes.
• Fireplaces with the sufx of -HA have been
designed to operate at altitudes of 4000 feet
and above.
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116646-01D4
PRE-INSTALLATION
D
RW
FW
PREPARATION
LOCATION AND SPACE
REQUIREMENTS
Determine the safest and most efcient 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 location for
your replace and termination cap.
When deciding the location of your replace,
follow these rules:
• Do not connect this replace venting to a chimney ue serving a separate solid-fuel burning
replace or appliance.
• Due to high temperatures, do not locate this
replace in high trafc 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 material 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 entertainment center recessed above your replace, 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 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.
116646-01D5
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• 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.
• 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).
Flush with a wall
Through exterior wall
enclosed in a chase
Corner
installation
Figure 2 - Common Fireplace Locations
22 1/2"
16 5/8"
34 3/8"
Figure 3 - Fireplace Bottom Dimensions
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 (S ee ve nti ng ins tru cti ons fo r
specic venting clearances.)
Combustible material with a maximum thickness of
5/8" may be ush with the top front of replace.
* For back and sides of replace, do not pack with
insulation or other materials. 0" clearance to combustible materials are for framing purpose only.
PRE-INSTALLATION
A
B
E
F
G
H
D
C
Nailing Tabs
C
B
A
D
E
F
G
Top of Louver
Opening
3
2
1
4
5
6
7
Wall
PREPARATION
Continued
NOTICE: This replace is intended for use as supplemental
heat. Use this replace along with
your primary heating system. Do
not install this replace as your
primary heat source. If you have a
central heating system, you may
run system’s 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!
(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)
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
LOCATION OF TERMINATION CAP
Figure 7 - Minimum Clearances for Termination Cap
116646-01D7
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VENTING INSTALLATION
INSTRUCTIONS
NOTICE: Read these instruc-
tions completely before attempting 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 attached 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 horizontally
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 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.
• Sn orkel term ina tio ns are re qui red whe n
minimum clearance to grade cannot be met (see
Figure 16 on page 12).
• Have replace and selected vent components on
hand to help determine the exact measurements
when elbowing or offsetting. Always use wall
restops when penetrating walls and restops
when penetrating ceilings or attic spaces.
• If using a venting conguration 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.
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: Failure to 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 component
• Unauthorized modication 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 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
horizontal sections, which require
2" clearances from the top of the
pipe. Where the termination cap
penetrates a combustible wall, 1"
air space clearance is required.
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116646-01D8
VENTING INSTALLATION
(Framing
Detail)
10 3/4"
10 3/4" Inside Framing
10 3/4"
8 1/2"
Vent Opening
Combustible Wall
Vent Opening
Noncombustible Wall
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 termination require
exterior portion of wall restop available only in
vent kit HTK (see Figure 14, page 11).
1. Set the replace in its desired location and
determine the route your horizontal venting
will take. Do not secure the replace until
all venting has been installed. Some installations require sliding the replace in and out
of position to make nal venting connections.
Figures 14 through 18 on pages 11 through 13
show different congurations 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 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). Note: Horizontal runs of vent
must be supported every three feet. Use wall
straps for this purpose.
3. Use a 45° elbow to connect venting system
to replace ue 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 conguration of the elbow
by cutting, twisting, bending, etc.
4. Assemble the desired combination of pipe and
elbows to the replace ue collar. If there are
long portions of venting run, pre-assembled
pipe sections may be installed as subassemblies for convenience.
116646-01D9
INSTRUCTIONS
Continued
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).
WARNING: Do not recess
vent termination into any wall.
This will cause a re hazard.
Female
Locking Lugs
Male
Slots
Figure 8 - Vent Pipe Connections
Center
of Hole
Figure 9 - Vent Opening Requirements
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VENTING INSTALLATION
INSTRUCTIONS
Continued
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 screws (see page 10). Note: The four wood
screws provided should be replaced with appropriate fasteners for stucco, brick, concrete or
other types of sidings. 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.
Combustible Exterior Wall: For vinyl siding,
stucco or wood exteriors, a siding standoff may
be installed between the vent cap and exterior
wall. The siding standoff prevents excessive
heat from damaging the siding materials. Siding
material must be cut to accommodate standoff. Bolt the vent cap to the standoff. Apply
non-hardening mastic around outside edge of
standoff. Position the standoff/cap assembly in
the center of the 10 3/4" square hole and attach
to exterior wall with wood screws provided (see
Figure 11). The siding standoff must sit ush
against the exterior fascia material.
7. Combustible Exterior Wall Only: Slide the wall
restop over the vent pipe before connecting
horizontal run to vent cap (see Figure 12).
8. Carefully move replace, with vent assembly
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).
9. Combustible Exterior Wall Only: Slide wall
restop against interior wall surface and attach
with screws provided (see Figure 12). See
Figure 13, page 11, for horizontal termination
details.
Apply Mastic to
All Four Sides
Vent
Cap
Wood
Screw
10. 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 replace is
level before securing. If replace is not level
it will not work properly.
Cut Siding Away to
Fit Standoff
Standoff
Wood Screw
Vent Cap
Screws
Apply Mastic
to All Four Sides
Figure 11 - Installing Siding Standoff
(Combustible Exterior)
Interior Wall
Surface
Wall
Firestop
Vent Cap
(Horizontal
Termination)
Figure 12 - Connecting Vent Cap with
Screw
Horizontal Vent Pipe
Horizontal
Vent Pipe
Figure 10 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
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116646-01D10
VENTING INSTALLATION
INSTRUCTIONS
Continued
Siding
Standoff
Minimum Pipe
Overlap 11/4"
Wall
Firestop
Direct
Vent
Pipe
Maintain 1"
Minimum Air Space
Around Outer Pipe
When Penetrating
a Wall
10 3/4" x 10 3/4"
Framed Opening
Figure 13 - Typical Horizontal
Termination Cap Mounting with
Additional Siding Standoff Installed
Horizontal Termination Congurations
Figures 14 through 18 show different congurations and alternatives for venting with horizontal
termination. Each figure includes a chart with
critical minimum and maximum dimensions which
MUST be met. IMPORTANT: If using a venting
conguration of only horizontal venting with no
vertical run, a 1/4" rise for every 12" of run toward
the termination is required.
NOTICE: Do not seal termination
cap to vent pipe. Cap must be
removable for vent inspection
and maintenance.
116646-01D11
Screws
High Wind
Termination
Apply
Mastic to
Outside
Edge of
Standoff
Exterior Wall
with Vinyl
Siding
www.desatech.com
WARNING: Never run vent
downward as this may cause
excessive temperatures which
could cause a re. 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 termi-
nation (up to 12") horizontal pipe)
• NOT FOR CORNER INSTALLATION
Horizontal High
Wind Square
Termination
45° Elbow
Figure 14 - Horizontal Termination
Conguration for Square or Round
45° Elbow
Adjustable
Pipe 12"
Max.
Wall
Firestop
Square Termination
Vertical (V) Horizontal (H)
29 3/4" 17" max.
Exterior
Wall
Firestop
Round Termination
(Kit HTK Shown)
Termination
Portion of Wall
Firestop (Round
Termination Only)
Slide Ring
Over Elbow
to Complete
Connection
Horizontal Round
Termination
VENTING INSTALLATION INSTRUCTIONS
Continued
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
Not to Exceed
Square
Termination
Wall
Firestop
Figure 15 - Horizontal Termination Conguration for Corner Installation Using One
SNORKEL TERMINATION INSTALLATION
Recommended Applications:
• Installations requiring a vertical rise on building
exterior
• Any installation using snorkel termination to
achieve one foot above ground
*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
Snorkel
Termination
90° Elbow
As Required
for (V), See
Chart for
Pipe Section
Required
90° Elbow
Not to Exceed
(H) Limits
90°
Elbow
Wall
Firestop
45°
Elbow
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 ll around snorkel termination.
Snorkel
Termination
90° Elbow
12" Min.
Wall
Firestop
Square
Termination
12" Min.
Snorkel
Termination
12" Min.
12" Min.
Adequate
Drainage
Figure 16 - Snorkel Termination Congurations for Below Ground Installation
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116646-01D12
VENTING INSTALLATION INSTRUCTIONS
Continued
HORIZONTAL SYSTEM INSTALLATION USING TWO 90° ELBOWS
The following congurations show the minimum vertical rise requirements for a horizontal system
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 17 - Horizontal Termination Conguration for Venting Using Two 90° Elbows
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.
Figure 18 - Horizontal Termination Conguration for Venting Using Two 90° Elbows
116646-01D13
with Termination at 90° with Fireplace
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45° Elbow
VENTING INSTALLATION
INSTRUCTIONS
Continued
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. 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 the venting system and any
maximum horizontal offset limitations.
2. Set the replace in desired location. Drop a
plumb line down from the ceiling to the position of the replace exit ue. Mark the center
point where the vent will penetrate the ceiling.
Drill a small locating hole at this point.
Drop a plumb line from the inside of the roof
to the locating hole in the ceiling. Mark the
center point where the vent will penetrate the
roof. Drill a small locating hole at this point.
Roof
Flashing
Wall Strap
45° Elbow
Ceiling
Firestop
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" x 10 3/4" inside
dimensions, as shown in Figure 9 on page 9
using framing lumber the same size as the
ceiling joists. If the area above the ceiling is
an insulated ceiling or an attic, nail restop
from the top side. This prevents loose insulation from falling into the required clearance
space. If the area above the ceiling is a living
space, install restop below the framed hole.
The restop should be installed with no less
than three nails per side (see Figure 20).
2. Assemble the desired lengths of pipe and
elbows necessary to reach from the replace
ue up through the restop. Be sure all pipe
and elbow connections are fully twist-locked
(see Figure 8, page 9).
3. Cut a hole in the roof using the locating hole
as a center point. (Cover any exposed open
vent pipes before cutting hole in roof.) The
10 3/4" x 10 3/4" hole must be measured on
the horizontal; actual length may be larger
depending on the pitch of the roof. There
must be a 1" clearance from the vent pipe to
combustible materials. Frame the opening as
shown in Figure 9, page 9.
4. Connect a section of pipe and extend up
through the hole.
Note: If an offset is needed to avoid obstruc-
tions, you must support the vent pipe every 3
feet. Use wall straps for this purpose (see Figure 19). Whenever possible, use 45° elbows
instead of 90° elbows. The 45° elbow offers
less restriction to the ow of the ue gases
and intake air.
5. Place the ashing over the pipe section(s)
extending through the roof. Secure the base
of the ashing to the roof and framing with
roong nails. Be sure roong material overlaps the top edge of the ashing as shown in
Figure 19. There must be a 1" clearance from
the vent pipe to combustible materials.
If area above is an
attic or insulated
area, install restop
above framed hole.
If area above is a
living space, install
restop below framed
hole.
Figure 20 - Installing Firestop
www.desatech.com
116646-01D14
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