Desa VVF36 Quick start guide
For more information, visit www.desatech.com
WARNING: If the information in this manual is not
— WHAT TO DO IF YOU SMELL GAS
• Do not touch any electrical switch; do not use any
-
DIRECT-VENT FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
PENINSULA MODELS (V)DVF36
TPNA-A(-HA)/TPNPA-A/TPNEA-A/TPNPEA-A
SEE-THRU MODELS (V)DVF36
TSTA-A(-HA)/TSTPA-A/TSTEA-A/TSTPEA-A
Peninsula Model
Shown
www.desatech.com 56131H2
SAFETy
alteration, service or
maintenance can cause
-
for correct installation
-
additional information
-
-
stalled in an aftermarket,*
-
-
intended for use with
State of Massachusetts:
The installation must
the Commonwealth of
-
known to the State of California
IMPORTANT: Check local codes
-
TAbLE OF CONTENTS
Safety .................................................................. 2
Dimensions.......................................................... 5
Pre-Installation Preparation................................. 6
General Venting................................................... 9
Venting Installation..............................................11
Fireplace Installation.......................................... 21
Pilot/Electrode Assembly Adjustment ................ 26
Burner Flame Adjustment.................................. 26
Operating Guidelines and Maintenance ............ 27
Operation........................................................... 28
Specications .................................................... 30
Troubleshooting................................................. 31
Wiring Diagrams................................................ 33
Service Hints ..................................................... 33
Technical Service............................................... 33
Parts and Accessories....................................... 34
Replacement Parts............................................ 34
Warranty ..............................................Back Cover
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56131H 3
Models (V)DVF36TPNA/TPNPA series are
three-sided direct-vent gas replaces and
models (V)DVF36TSTA/TSTPA are two-sided
direct-vent gas replace heaters with sealed
combustion chambers.
Models (V)DVF36TPNEA/TPNPEA and
(V)DVF36STEA/TSTPEA use a direct spark
ignition with a 24 VAC control module. All
models have HI/LO valve that controls the
ame height. These units can be equipped
with louvers for circulating or with panels for
noncirculating operation.
Fan Kit models DVFFBK and DVFFBKT are
available for these units as an option. If you
are uncertain as to what gas your unit is
equipped for, please check the rating plate
located in the interior of the appliance open-
ing or consult your local DESA Heating, LLC
distributor.
Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness or nausea. If
you have these signs, the replace may not
be working properly. Get fresh air at once!
Have replace serviced. Some people are
more affected by carbon monoxide than oth-
ers. These include pregnant women, people
with heart or lung disease or anemia, those
under the inuence of alcohol and those at
high altitudes.
Natural and
propane/LP gas are odorless. An odor-making
agent is added to the gas. The odor helps you
detect a gas leak. However, the odor added to
the gas can fade. Gas may be present even
though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this replace.
-
Before beginning the installation of replace,
read these instructions through completely.
• This DESA Heating, LLC replace and its
components are safe when installed ac-
cording to this installation manual. Unless
you use DESA Heating, LLC components,
which have been designed and tested for
the replace system, you may cause a re
hazard.
• The DESA Heating, LLC warranty will be
voided by and DESA Heating, LLC dis-
claims any responsibility for the following
actions:
a. Modification of the fireplace, com-
ponents, doors, air inlet system and
damper control.
b. Use of any component part not manu-
factured or approved by DESA Heating,
LLC in combination with a DESA Heat-
ing, LLC replace system.
c) Installation and/or operation in a
manner other than instructed in this
manual.
d) Burning of anything other than the type
of gas approved for use in this gas
appliance.
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.
The installation must conform to local codes,
or in the absence of local codes, with the
National Fuel Gas Code ANSI Z223.1. This
appliance complies with ANSI Z21.50.
Proper installation is the most important step
in ensuring safe and continuous operation
of the replace. Consult the local building
codes as to the particular requirements
concerned with the installation of all factory
built replaces.
This replace must be installed by a qualied
(certied or licensed) service person. It has
a sealed gas combustion chamber that uses
a millivolt gas control valve with a millivolt
ignition system.
SAFETy
Continued
www.desatech.com 56131H4
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WARNING: Do not allow fans
-
-
adults away from hot surface to
-
-
dren when they are in the room
SAFETy
Continued
1. For propane/LP replace, do not place
propane/LP supply tank(s) inside any
structure. Locate propane/LP supply
tank(s) outdoors. To prevent performance
problems, do not use propane/LP fuel tank
of less than 100 lbs. capacity.
2. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do
not use any phone in your building
• immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier's instructions
• if you cannot reach you gas supplier,
call the re department
3. Never install the replace
• in a recreational vehicle
• in windy or drafty areas where curtains
or other combustible (ammable) objects
can make contact with the replace front
• in high trafc areas
4. Turn fireplace off and let cool before
servicing, installing or repairing. Only a
qualied service person should install,
service or repair this replace. Have re-
place inspected annually by a qualied
service person.
5. You must keep control compartments,
burners and circulating air passages
clean. More frequent cleaning may be
needed due to excessive lint and dust
from carpeting, bedding material, etc.
Turn off the gas valve and pilot light before
cleaning replace.
6. Have venting system inspected annu-
ally by a qualified service person. If
needed, have venting system cleaned or
repaired.
7. Do not use any solid fuels (wood, coal,
paper, cardboard, etc.) in this replace.
Use only the gas type indicated on re-
place nameplate.
8. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service person to arrange
for replacement of the unit.
9.
Do not operate replace if any log is broken.
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56131H 5
DIMENSIONS
FRONT VIEW
30"
(Opening)
25"
19
7
/
8
"
(Opening)
RIGHT SIDE
1
7
/
8
"
22
5
/
8
"
41
1
/
8
"
32"
(Opening) 1
7
/
8
"
39
3
/
4
"
26
3
/
8
"
3" 1" 3
1
/
2
"
22
5
/
8
"
34
3
/
4
"
3"
BACK VIEW
TOP VIEW
(Left Side)
(Right Side)
(Front)
(Back)
24"
11
15
/
16
10
1
/
2
"
1
1
/
2
"ø 1
1
/
2
"ø
10
1
/
2
"
FRONT VIEW
30"
(Opening)
24"
25"
RIGHT SIDE
22 5/8"
43 1/8"
32" (Opening) 1 7/8"
1 7/8"
BACK VIEW
39 3/4"
26 3/8"
3" 1" 2" 3"
22 5/8"
34 3/4"
TOP VIEW
(Left Side)
(Right Side)
(Front)
(Back)
24"
1115/16"
101/2"
ø11/2" ø11/2"
111/8"
Figure 1 - Peninsula Dimensions
Figure 2 - See-Thru Dimensions
10. Do not operate replace with glass door
removed, cracked or broken.
11. Provide adequate clearances around air
openings.
12. Fireplaces with the sufx of -HA have been
designed to operate at altitudes of 4000
SAFETy Continued
feet and above. For horizontal installa-
tions above 2,000 feet, it is recommended
that a 12" extension pipe be added before
starter elbow (see High Altitude Installa-
tion, page 19).
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PRE-INSTALLATION PREPARATION
CLEARANCES
Minimum clearances to combustibles for
replace are as follows:
*Back and sides of surround 0"
Vent Surfaces (side and bottom) 1"
Top Vent Surface (horizontal run) 2"
Ceiling to Opening 36"
Floor 0"
Wall to Front of Glass 36"
Perpendicular Wall to Opening of Unit 2"
Top Spacer 0"
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-
MANTEL CLEARANCES
Figure 3 - Direct-Vent Fireplace
Log Set
Upper
Louver
Panel
Lower
Louver
Panel
Figure 4 - Minimum Clearances
(Peninsula Shown)
CEILING
WALL
36" Min.
36" Min.
0" Floor
LOCATION AND SPACE
REQUIREMENTS
Determine the safest and most efcient loca-
tion for your DESA Heating, LLC direct-vent
replace. Make sure that rafters and wall
studs are not in the way of the venting system.
Choose a location where heat output is not
affected by drafts, air conditioning ducts, win-
dows or doors. 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:
• A projection may be ideal for a new addition
on an existing nished wall. Refer to hori-
zontal termination congurations on page
15 or vertical congurations on page 18.
• Do not connect fireplace venting to a
chimney ue serving a separate solid-fuel
burning replace or appliance.
• Due to high temperatures, do not locate
replace in high trafc areas, windy or drafty
areas or near furniture or draperies.
• Never obstruct front opening of appliance
or ow of combustion and ventilation air.
Keep control compartments accessible.
• Do not locate close to where gasoline or
other ammable liquids may be stored.
Appliance must be kept clear and free from
combustible materials.
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56131H 7
0"
36"
2"
Wall In Front Of Glass
36" Min.
Perpendicular
Wall 2" Min.
From Opening
Right Side
Surround
(0" Min.)
Left Side
Surround
(0" Min.)
TOP VIEW
Figure 6 - Mantel Clearances for
Peninsula and See-Thru Fireplaces
(Peninsula Shown)
21" Min.
15" Min.
12" Min.
4"
Min.
7" Min.
1
1
/
2
" Max.
UNIT
Spacer
2 x 4
Combustible
Material May
Be Used
Drywall (Gypsum
Board, Sheetrock, etc.)
Safe Zone for
Projection of
Combustible
Material
Woodwork, such as wood trims, mantels and
other combustible materials should not be
placed within 7" of the opening of replace
(see Figure 6).
Combustible material above projecting more
than 1 1/2" from appliance’s front face must
not be placed less than 15" from opening
of appliance, (ref. NFPA Standard 211 Sec.
7-3.3.3)
PRE-INSTALLATION PREPARATION
Continued
Figure 5 - Minimum Clearances
(See-Thru Shown)
Combustible Material Drywall
2 x 4
Stud
Minimum 1" Clearance from
Side (Only for See-Thru)
FRAMING
Once nal location has been determined,
observing clearances for vent termination,
you may construct framing using dimensions
shown in Figures 7 thru 13 depending on your
particular installation
If appliance is to be installed directly on car-
peting, tile (other than ceramic), or any com-
bustible material other than wood ooring, the
appliance must be installed upon a metal or
wood panel extending the full width and depth
of the appliance. There are three holes on
each side of the bottom of unit where screws
can be used to secure unit to oor.
Figure 7 - Rough Opening for Installing
Peninsula Fireplace
39
3
/
4
" Min.
40
1
/
2
"
23
5
/
8
"
39
3
/
4
"
Min.
40
1
/
2
"
23
5
/
8
"
*
Figure 8 - Rough Opening for Installing
Peninsula Fireplace on Platform
* As required by design as long as
ceiling clearance is maintained.
Platform
Must Be
Solid, Flat,
and Fully
Supported
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PRE-INSTALLATION PREPARATION
Continued
39
3
/
4
"
Min.
43
1
/
4
"
24"
Figure 9 - Rough Opening for Installing
See-Thru Fireplace
3"
1" Dia. Hole
3"
2" Dia. Hole
1"
2"
Figure 10 - Hole Locations For Gas Line
and Electric Wires for Peninsula and
See-Thru Fireplaces
Height
Depends On
Installation
10"
Square Min.
Figure 12 - Rough Opening for Installing
Exterior Vent Terminal
Vertical
Height
Depends on
Installation
26
3
/
8
"
Horizontal
Length Depends
on Installation
90
o
Elbow
45
o
Elbow
Figure 13 - Vent Opening Height
Figure 11 - Alternate Gas Supply
Location
11
15
/
16
"
10
1
/
2
"
20
3
/
16
"
1
1
/
2
"
The gas supply line may be connected through
side framing or alternately through lower sub-
ooring or a platform base if provided (see
Figures 10 and 11). Depending on installation,
refer to appropriate illustrations.
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56131H 9
GENERAL VENTING
• 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 exces-
sive snow or ice build up may occur. Be
sure to clear vent termination area after
snow falls to prevent accidental blockage of
venting system. When using snow blowers,
do not direct snow towards vent termination
area.
VENT TERMINATION CLEARANCES
The nal position of your appliance depends
on the location of the vent termination in rela-
tion to the clearances that must be observed
as shown in Figure 14, page 10.
You may avoid extra framing by positioning
your replace against an already existing
framing member. The back of the replace
may be positioned directly against a com-
bustible wall.
*Check with local codes. In the USA, follow
the current National Fuel Gas Fuel Gas Code,
ANS Z223.1 also known as NFPA 54.
These models are approved for use with
DESA Heating, LLC 58 Series, rigid type direct
vent pipe as supplied by DESA Heating, LLC
or with approved types of exible vent pipe
(not supplied) when appropriate sized for an
8" outer and 5" inner diameter application.
Your replace is approved to be vented either
through the side wall, or vertically using the
following guidelines:
• Only use DESA Heating, LLC supplied or
approved types of venting components
or kits. Do not mix different types of vent
components, modify vent components or
custom fabricate vent components for use
in any one installation.
• Minimum clearance between vent pipes
and combustible materials is 1", except
where stated otherwise.
• Combustible material may be ush with
the top front of replace with a maximum
thickness of 3/4".
• Do not recess venting terminals into a wall
or siding.
• Do not install vent terminals below grade
level. Maintain a minimum height of 12"
above snow line.
• Do not terminate venting system into an
attic or garage.
• 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.
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Fixed
Closed Openable Fixed
Closed
V
V
V
V
VV
V
V
X
X
VX
G
G
J
F
B
B
K
N
H
I
A
N
E
L
D
B
M
A
C
B
V
V
A
G
G
B
TERMINATION CAP AIR SUPPLY INLET GAS METER RESTRICTED AREA
(TERMINATION PROHIBITED)
A = clearance above grade, veranda, porch, deck, or
balcony [*12" (30.5 cm) minimum]
B = clearance to window or door that may be opened
[6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US
if between 10,000 and 50,000, 12" (30 cm) in Canada
if between 10,000 and 100,000; 12" (30 cm) in US if
greater than 50,000, 36" (91 cm) in Canada if greater
than 100,000]
C = clearance to permanently closed window
[minimum 12" (30.5 cm) recommended to prevent
condensation on window]
D = vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 24" (61 cm) from
the center-line of the terminal [18" (45.7 cm) minimum]
E = clearance to unventilated soffit [12" (30.5 cm) minimum]
F = clearance to outside corner (see below)
G = clearance to inside corner (see below)
H = *not to be installed above a meter/regulator assembly
within 36" (91.4 cm) horizontally from the center line
of the regulator
I = clearance to service regulator vent outlet [*72" (182.9 cm)
minimum]
J = clearance to non-mechanical air supply inlet to building
or the combustion air inlet to any other fireplace
[6" (15 cm) min. for 10,000 Btu or less; 9" (23 cm) in US
if between 10,000 and 50,000, 12" (30 cm) in Canada
if between 10,000 and 100,000; 12" (30 cm) in US if
greater than 50,000, 36" (91 cm) in Canada if greater
than 100,000]
K = clearance to a mechanical air supply inlet [*In Canada,
6 ft. (1.83m) minimum; In US 3 ft. (91 cm) above if within
10 ft. (3 m) horizontally]
L = † clearance above paved side-walk or a paved driveway
located on public property [*84" (213.3 cm) minimum]
M = clearance under veranda, porch, deck
[*12" (30.5 cm) minimum ‡]
N = clearance above a roof shall extend a minimum of
24" (61 cm) above the highest point when it passes
through the roof surface and any other obstruction within
a horizontal distance of 18" (45.7 cm)
† vent shall not terminate directly above a side-walk or paved driveway which is located between two
single family dwellings and serves both dwellings*
‡ only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*
* as specified in CAN/CSA B149 (.1 or .2) Installation Codes (1991) for Canada and U.S.A.
Note: Local codes or regulations may require different clearances
A = 6" (15.2 cm)
Inside Corner
V
B
E
V
B = 6" (15.2 cm)
C = Maximum depth of 48" (121.9 cm)
for recessed location
D = Minimum width for back wall of
recessed location -
Combustible - 38" (965 mm)
Noncombustible - 24" (61 cm)
E = Clearance from corner in
recessed location-
Combustible - 6" (15.2 cm)
Noncombustible - 2" (5.1 cm)
Outside Corner Recessed Location
G
H
G = 12" (30.5 cm) minimum clearance
Balcony with No Side Wall
V
J
Combustible &
Noncombustible
H = 24" (61 cm)
J = 20" (50.8 cm)
Balcony with Perpendicular Side Wall
C
D
C
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
Openable
Figure 14 - Minimum Clearances for Vent Terminations
GENERAL VENTING
Continued
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56131H 11
VENTING INSTALLATION
-
WARNING: Horizontal sec-
a minimum clearance of 2" from
-
Vertical sections of this system
-
INSTALLATION PLANNING
There are two basic types of direct-vent
installation:
• Horizontal Termination
• Vertical Termination
It is important to select the proper length
of vent pipe for the type of termination you
choose. It is also important to note the wall
thickness.
For Horizontal Termination: Select the
amount of vertical rise desired. The horizontal
run of venting must have 1/4" rise for every
12" of run towards the termination.
WARNING: Never run the
vent downward as this may
You may use one or two 90° elbows in this
vent conguration. See Horizontal Termina-
tion Congurations on page 15.
For Vertical Termination: Measure distance
from replace ue outlet to ceiling. Add ceiling
thickness, vertical rise in an attic or second
story, and allow for sufficient vent height
above roof line. You may use one or two 90°
elbows in this vent conguration. See Vertical
Termination Congurations on page 16.
WARNING: Read all instruc-
Failure to do so could result in
NOTICE:Failuretofollowthesein-
NOTICE: Do not seal termination
INSTALLATION PRECAUTIONS
Consult local building codes before beginning
installation. The installer must make sure to
select the proper vent system for installa-
tion. Before installing vent kit, the installer
must read this replace manual and vent kit
instructions.
Only a qualied service person should install
venting system. The installer must follow
these safety rules:
• Wear gloves and safety glasses for pro-
tection
• Use extreme caution when using ladders
or when on roof tops
• Be aware of electrical wiring locations in
walls and ceilings
The following actions will void the warranty
on your venting system:
• Installation of any damaged venting com-
ponent
• Unauthorized modication of the venting
system
• Installation of any component part not
manufactured or approved by DESA Heat-
ing, LLC
• Installation other than as instructed by
these instructions
www.desatech.com 56131H12
VENTING INSTALLATION
Continued
Note: You may use two 45° elbows in place of
a 90° elbow. You must follow rise to run ratios
when using 45° elbows.
For two-story applications, firestops are
required at each oor level. If an offset is
needed in the attic, additional pipe and elbows
will be required.
You may use a chase with a vent termination
with exposed pipe on exterior of house. See
Installing Vent System in a Chase.
Your DESA Heating, LLC direct-vent replace
has been tested for a minimum 3' rise with a
maximum 11" wall thickness. Any horizontal
application longer than 12" must provide a
minimum of 1 foot of vertical rise for every 3
feet of horizontal run. The maximum horizon-
tal run is 20' with 8' vertical rise (see Installa-
tion for Horizontal Termination). The maximum
vertical run is 30' (see Installation for Vertical
Termination, page 16).
A chase is a vertical box-like structure built to
enclose venting that runs along the outside
of a building.
and construction of the chase
-
Note: When installing in a chase, you should
insulate the chase as you would the outside
walls of your home. This is especially im-
portant in cold climates. Minimum clearance
between vent pipes and combustible materials
such as insulation is 1".
After framing chase (see Framing on page
7) install vent system by following installation
instructions.
INSTALLATION FOR HORIZONTAL
TERMINATION
1. Determine the route your horizontal vent-
ing will take. Note: The location of horizon-
tal vent termination on exterior wall must
meet all local and national building codes
and must not be blocked or obstructed.
Figure 16 - Snorkel Termination with
Drainage Pipe
Figure 15 - Snorkel Termination
Snorkel
1' Minimum
90º
45º
Snorkel
1' Minimum
90º
45°
12"
Minimum
12"
Minimum
WARNING: Do not recess
vent terminal into a wall or sid-
Snorkel terminations are available for
terminations requiring a vertical rise on
the exterior of building (see Figures 15
and 16). Snorkel kits are available for
rigid pipe applications only to provide a
14" rise and a 36" rise (see page 19).
Follow the same installation procedures
used for standard horizontal terminations.
If installing snorkel termination to raise
vent termination from below grade level
such as in a basement installation, you
must provide proper drainage to prevent
water from entering snorkel termination
(see Figure 16). Do not back ll around
snorkel termination.
Adequate
Drainage
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56131H 13
VENTING INSTALLATION
Continued
2. Rigid vent pipes and ttings have special
twist-lock connections. Assemble desired
combination of pipe and elbows to appli-
ance adaptor with pipe seams oriented
towards wall or oor.
Twist-lock Procedure: Female ends
of pipes and ttings have four locking
lugs (indentations). These lugs will slide
straight into matching slots on male ends
of adjacent pipes and ttings. Push pipe
sections together and twist one section
clockwise approximately one-quarter turn
until sections are fully locked. See Figure
17. Note: Horizontal runs of vent must
be supported every three feet. Use wall
straps for this purpose.
3. Attach vent pipe assembly to replace us-
ing twist lock connections for rigid pipe or
clamp method for ex pipe. Set replace
in front of its permanent location to insure
minimum clearances. Mark wall for a 10 3/4"
square hole (for noncombustible material
such as masonry block or concrete, a 8 1/2"
diameter hole is acceptable). See Figure
18. The center of hole should line up with
center line of rigid vent pipe. Cut a 10 3/4"
x 10 3/4" square hole through combustible
exterior wall (8 1/2" diameter hole if non-
combustible). Frame as necessary.
Figure 17 - Vent Pipe Connections
Male Slots
Female
Locking
Lugs
Rigid Vent Pipe
4. Three types of vent caps are available
for horizontal terminations. Two square
terminals are available; one for rigid pipe
applications and one for ex pipe ap-
plications. A round vent termination with
a slip t connection is also provided for
rigid pipe applications to be used when
a wall thickness or off spacing must be
accommodated. Each may be purchased
as a kit that includes a 45° elbow and a
restop that accommodates a square or
round termination (see Parts List for Vent-
ing Kits and Components, page 19).
Apply a
bead of non-hardening mastic around out-
side edge of vent cap. Position vent cap
in center of the 8 1/2" hole on the exterior
wall with arrow on vent cap pointing up.
Attach vent cap with four wood screws
provided (see Figure 19). Note: Replace
wood screws with appropriate fasteners
for stucco, brick, concrete, or other types
of siding.
Figure 18 - Vent Opening Requirements
(Framing
Detail)
10 3/4"
10 3/4" Inside Framing
10 3/4"
8 1/2"
Vent
O
pening
Combustible Wall
Vent Opening
Noncombustible Wall
Figure 19 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Wood Screw
Vent Cap
www.desatech.com 56131H14
VENTING INSTALLATION
Continued
WARNING: Do not recess
For vinyl
siding, stucco, or wood exteriors, a siding
standoff must be installed between vent
cap and exterior wall. Siding standoff
prevents excessive heat from damaging
siding materials. Siding materials must
be cut to accommodate standoff. Bolt
vent cap to standoff. Apply non-hardening
mastic around outside edge of standoff.
Position standoff/cap assembly in the
center of square hole and attach to exte-
rior wall with wood screws provided (see
Figure 20). Siding standoff must sit ush
against exterior fascia material.
5.
Slide wall restop over vent
pipe before connecting horizontal run to
vent cap (see Figure 21).
6. Make nal connection to vent terminal.
Flush or recessed with short vent sys-
tem: Vent system may be pre-sized. Check
for nal t and slide unit into framing with
restop in place. This is helpful when using
rigid pipe and round vent termination. Vent
may be preconnected and slipped through
restop. Make sure 45° connection at unit
is tight and does not come loose before
unit is nailed to framing.
Vent pipe must be manipulated at outer
end to make nal connection. Manually
secure pipe inside open framing. If this
is a retrot installation in an inaccessible
space, you may have to secure outer
end of vent pipe with wall straps and tap
screws at outer end.
When using tap screws with rigid pipe,
be sure that screws do not penetrate
inner pipe. These procedures may also
be followed by exible pipe installations.
To use exible pipe, vent must be drawn
through end restop, cut back to 6"-8" to
permit easy connection of ex termination
and connection must be slipped back into
and secured to installation. You must use
an adequate number of spring spacers at
ends and closest bend to termination to
prevent kinks or collapsing on the re. Do
not use screws with ex pipe. Vent system
must be code inspected and released
before adding dry wall or other surface
treatments.
Figure 20 - Installing Vinyl Siding
Standoff (Combustible Exterior Wall)
Cut Vinyl Siding
Away to Fit Standoff
Wood
Screw
Bolt
Standoff
Vent
Cap
Apply Mastic to
All Four Sides
Vent Cap (Horizontal
Termination)
Interior Wall
Surface
Interior Wall Firestop
(Combustible
Exterior Wall Only)
Horizontal
Vent Pipe
Figure 21 - Connecting Vent Cap with
Horizontal Vent Pipe
Screw
www.desatech.com
56131H 15
Figure 22 - Horizontal Termination
Conguration for Rigid Venting Using
One 90° Elbow
Vertical (V) Horizontal (H)
49.5" min. 17" max.
(45° elbow, 1' vertical pipe, 90° elbow)
60" min. 77" max.
72" min. 101" max.
84" min. 125" max.
132" min. 149" max.
VENTING INSTALLATION
Continued
Vertical (V) Horizontal (H1) +
Horizontal (H2)
5' min. 4' max.
6' min. 8' max.
7' min. 10' max.
8' min. 15' max.
20' max. 20' max.
Figure 23 - Horizontal Termination
Conguration for Rigid Venting Using
Two 90° Elbows with Termination at 90°
with Fireplace
INSTALLATION FOR VERTICAL
TERMINATION
1. Determine route your vertical venting
will take. If ceiling joists, roof rafters, or
other framing will obstruct venting system,
consider an offset (see Figure 24) to avoid
cutting load bearing members.
Figure 24 - Vertical Cent Pipe Offsets
Plumber’s
Tape
Connected
to Wall
Strap
Wall
Strap
Firestop
(2) 45°
Elbows
Firestop
(2) 45°
Elbows
Roof
Flashing
45° Starter
Elbow
45° Starter
Elbow
Figures 22 and 23 show different congura-
tions for venting with horizontal termination.
Each figure includes a chart with vertical
minimum/maximum and horizontal maximum
dimensions which must be met. All horizon-
tal terminations require 1/4" rise per 12" of
horizontal run. You must add 1/4" of vertical
height (V) in the following tables for each foot
of horizontal run (H).
www.desatech.com 56131H16
VENTING INSTALLATION
Continued
Figure 26 - Installing Firestop
If area above is a living space, install
restop below framed hole.
If area above is an attic, install restop
above framed hole.
Note: Pay special attention to these instal-
lation instructions for required clearances
(air space) to combustibles when passing
through ceilings, walls, roofs, enclosures,
attic rafters, etc. Do not pack air spaces
with insulation. Also note maximum
vertical rise of venting system and any
maximum horizontal offset limitations.
Offsets must fall within parameters shown
in Figure 25.
2. Set replace in desired location. Drop a
plumb line down from ceiling to position
of replace exit ue. Mark center point
where vent will penetrate ceiling. Drill a
small locating hole at this point.
Drop a plumb line from inside of roof to
locating hole in ceiling. Mark center point
where vent will penetrate roof. Drill a small
locating hole at this point.
1. Cut a 12 1/2" square hole in the ceiling us-
ing locating hole as a center point. Open-
ing should be framed to 12 1/2" x 12 1/2"
inside dimensions, as shown in Figure
18 on page 13, using framing lumber the
same size as ceiling joists. If area above
ceiling is an insulated ceiling or an attic,
nail restop from top side. This prevents
loose insulation from falling into required
clearance space. If area above ceiling is a
living space, install restop below framed
hole. The restop should be installed with
no less than three nails per side (see
Figure 26).
2. Assemble desired lengths of pipe and
elbows necessary to reach from replace
ue up through restop. Be sure all pipe
and elbow connections are fully twist-
locked (see Figure 17, page 13).
3. Cut a hole in roof using locating hole as
a center point. (Cover any exposed open
vent pipes before cutting hole in roof.) The
12 1/2" x 12 1/2" hole must be measured
on the horizontal, actual length may be
larger depending on pitch of roof. There
must be a 1" clearance from vent pipe to
combustible materials. Frame opening as
shown in Figure 18 on page 13.
X
12
Roof Pitch is
x 12 Listed
Clearance
8'
Minimum
Listed
Vent Cap
Lowest
Discharge
Opening
Listed
Gas
Vent
H (Min.) Height from Roof
Figure 25 - Vertical Vent Termination
Clearance
ROOF PITCH
Flat to 6/12 1.0'
6/12 to 7/12 1.25'
Over 7/12 to 8/12 1.5'
Over 8/12 to 9/12 2.0'
Over 9/12 to 10/12 2.5'
Over 10/12 to 11/12 3.25'
Over 11/12 to 12/12 4.0'
Over 12/12 to 14/12 5.0'
Over 14/12 to 16/12 6.0'
Over 16/12 to 18/12 7.0'
Over 18/12 to 20/12 7.5'
Over 20/12 to 21/12 8.0'
www.desatech.com
56131H 17
VENTING INSTALLATION
Continued
4. Connect a section of pipe and extend
up through hole. If an offset is needed to
avoid obstructions, you must support vent
pipe every 3 feet. Use wall straps for this
purpose (see Figure 24, page 15). When-
ever possible, use 45° elbows instead of
90° elbows. The 45° elbow offers less
restriction to the ow of ue gases and
intake air.
5. Place ashing over pipe section(s) ex-
tending through roof. Apply a bead of
silicone or roof sealer to the bottom ange
of ashing and secure base of ashing
to roof and framing with roong nails. Be
sure roong material overlaps top edge of
ashing as shown in Figure 24, page 15.
There must be a 1" clearance from vent
pipe to combustible materials.
6. Continue to add pipe sections until the
height of vent cap meets the minimum
building code requirements described in
Figure 14, page 10.
Note: You must increase vent height for
steep roof pitches. Nearby trees, adjoining
rooines, steep pitched roofs, and other
similar factors may cause poor draft or
down-draft condition (see Figure 24, page
15). Increasing vent height may solve this
problem.
7. Apply a bead of sealer to the upper edge
of ashing collar. Slide storm collar over
pipe and down to top edge of ashing.
Apply a second bead of silicone or roof
sealer around remaining seam of storm
collar. Twist-lock vent cap onto last section
of vent pipe. Finish sealing ange around
roong material with roong sealer.
Note: If vent pipe passes through any oc-
cupied areas above the rst oor, including
storage spaces and closets, you must enclose
pipe. You may frame and sheetrock enclosure
with standard construction material. Make
sure and meet the minimum allowable clear-
ances to combustibles. Do not ll any required
air spaces with insulation.
Figure 27 - Cathedral Ceiling Support
Box Installation
Cut hole 1/8"
larger than
support box when
projected onto rooine
2" minimum below
nished ceiling
Cathedral
ceiling
support box
Level
1. Remove shingles or other roof covering as
necessary to cut rectangular hole for sup-
port box. Mark outline of cathedral ceiling
support box on roof sheathing using the
locating hole as a center point.
2. Cut hole 1/8" larger than the support box
outline (see Figure 27).
3. Lower support box through hole in roof
until bottom of box extends at least 2"
below ceiling (see Figure 27). Align sup-
port box vertically and horizontally using
a level. Temporarily tack support box in
place through inside walls and into roof
sheathing.
4. Using tin snips, cut support box from top
corners down to rooine and fold result-
ing aps over roof sheathing (see Figure
28). Apply a bead of non-hardening mas-
tic around top edges of support box to
make a seal between box and roof. Nail
in place with roong nails. Remove any
combustible material that might be inside
of support box.
5. Complete cathedral ceiling installation by
following the same procedures outlined in
steps 2 through 7 for Flat Ceiling Installa-
tion, page 16.
Non-hardening
Mastic under all
edges of support
box before nailing
Figure 28 - Installed Cathedral Ceiling
Support Box
www.desatech.com 56131H18
Vertical (V) Horizontal (H1) +
Horizontal (H2)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 29 - Vertical Rigid Venting
Conguration Using Two 90° Elbows
with Two Horizontal Runs
Vertical (V) Horizontal (H)
5' min. 2' max.
6' min. 4' max.
7' min. 6' max.
8' min. 8' max.
20' max. 8' max.
Figure 30 - Vertical Rigid Venting
Conguration Using One 90° Elbow
Vertical (V1) Horizontal (H)
5' min. 6' max.
6' min. 12' max.
7' min. 18' max.
8' min. 20' max.
Figure 31 - Vertical Rigid Venting
Conguration Using Two 90° Elbows
VENTING INSTALLATION
Continued
Figures 29 through 32 show four different
congurations for vertical termination. These
minimum vertical rises are based on horizon-
tal runs with a minimum of 1/4" upwards pitch
per foot and do not reect constraints on a
vertical system with 45° or greater offset.
45° Starter Elbow
Note: Install restrictor
into inner collar of
replace as shown.
45° Starter Elbow
Note: Install restrictor
into inner collar of
replace as shown.
45° Starter
Elbow
Note: Install restrictor
into inner collar of
replace as shown.
Any offset pitch of 45° or less must be
considered horizontal and sized within the
maximum allowable lengths listed in the fol-
lowing examples.
www.desatech.com
56131H 19
VENTING INSTALLATION
Continued
Figure 32 - Vertical Rigid Venting
Conguration With No Horizontal Run
V = 40' max.
PARTS LIST FOR DESA HEATING, LLC
VKR-58 Roof Vent Kit, Galvanized
(Includes: 45° Elbow, 7"-12"
Adjustable Pipe, Flue Restrictor,
Vertical High Wind Termination, 2'
Pipe, 4' Pipe, Wall Firestop, Storm
Collar, Roof Flashing [0/12 - 6/12],
26 Screws)
VKB-58 Basement Vent Kit, Galvanized
(Includes: 45° Elbow, 7"-12"
Adjustable Pipe, Wall Firestop,
Horizontal Square Termination, 4'
Pipe, 90° Elbow, 20 Screws)
VKS-58 Snorkel Vent Kit, Galvanized
(Includes: 45° Elbow, 7"-12" Ad-
justable Pipe, Wall Firestop, 36"
Snorkel Termination, 4' Pipe, 1'
Pipe, 90° Elbow, 26 Screws)
VKG-58 Ground Floor Vent Kit, Galva-
nized (Includes: 45° Elbow, 7"-12"
Adjustable Pipe, Wall Firestop,
Horizontal Square Termination, 16
Screws)
P58-48 48" Section Double Wall Pipe,
Galvanized
P58-36 36" Section Double Wall Pipe,
Galvanized
P58-24 24" Section Double Wall Pipe,
Galvanized
P58-12 12" Section Double Wall Pipe,
Galvanized
P58-6 6" Section Double Wall Pipe, Gal-
vanized
HIGH ALTITUDE INSTALLATION
Your DESA Heating, LLC direct-vent replace
has been tested and approved for elevations
from 0-2,000 feet (USA).
Fireplaces for High Altitude (models ending
in -HA) are for installation above 4,000 feet
only. These replaces are equipped with parts
specic for higher altitudes. IMPORTANT:
These replaces can NOT be converted to
propane/LP gas.
When installing a non-high altitude replace at
an elevation above 2,000 feet (USA), you may
need to decrease the input rating by changing
the existing burner orice to a smaller size.
Reduce input 4% for each 1,000 feet above
sea level. Check with your local gas company
for proper orice size identication.
IMPORTANT: For horizontal installations
Figure 33 - Recommended 12" Extension
for High Altitude Installation
45° Starter
Elbow
Note: Install
restrictor into
inner collar
of replace
as shown.
45° Starter
Elbow
12"
Extension
www.desatech.com 56131H20
VENTING INSTALLATION
Continued
PA58-712 Adjustable 7"-12" Section Double
Wall Pipe, Galvanized
FPA58-6 6" Dura Vent Collar to FMI Pipe
Adaptor
E58-45 45° Elbow, Galvanized
E58-90 90° Elbow, Galvanized
FSE58-45 45° Starter Elbow (Dura Vent to
FMI Pipe)
FP-58 Firestop Plate
WF-58 Wall Firestop, Galvanized
RF-58-6 Roof Flashing - 0 to 6/12 Pitch,
Galvanized
RF-58-12 Roof Flashing - 6/12 to 12/12 Pitch,
Galvanized
S-58 Vinyl Siding Standoff, Galvanized
VT-58 Vertical Round Termination, Gal-
vanized
HHT-58 High Wind Round Horizontal Ter-
mination Kit, Galvanized
HTS-58 Horizontal Square Termination,
Galvanized
HHTK-58 High Wind Round Horizontal
Termination Kit (Includes Round
Termination, Wall Firestop, 45°
Elbow)
ST-58-14 14" Snorkel Termination, Galva-
nized
ST-58-36 36" Snorkel Termination, Galva-
nized
SF-58 Stucco Flashing - For use with
HTS-58
VR-58 Vertical Restrictor, Galvanized
WS-58 Wall Strap
SC-58 Storm Collar, Galvanized
CS-58 Cathedral Ceiling Support
01493 Roof Vent Kit, Galvanized
(Includes: 45° Elbow, 7"-12"
Adjustable Pipe, Flue Restrictor,
Vertical High Wind Termination, 2'
Pipe, 4' Pipe, Wall Firestop, Storm
Collar, Roof Flashing [0/12 - 6/12],
26 Screws)
01492 Ground Floor Vent Kit, Galva-
nized (Includes: 45° Elbow, 7"-12"
Adjustable Pipe, Wall Firestop,
Horizontal Square Termination, 16
Screws)
01501 48" Section Double Wall Pipe,
Galvanized
01500 36" Section Double Wall Pipe,
Galvanized
01499 24" Section Double Wall Pipe,
Galvanized
01498 18" Section Double Wall Pipe,
Galvanized
01497 12" Section Double Wall Pipe,
Galvanized
01513 6" Section Double Wall Pipe, Gal-
vanized
D1032 Adjustable 7"-12" Section Double
Wall Pipe, Galvanized
01502 45° Elbow, Galvanized
01503 90° Elbow, Galvanized
01504 Firestop Plate
01607 Wall Firestop, Galvanized
10505 Roof Flashing - 0 to 6/12 Pitch,
Galvanized
01506 Roof Flashing - 6/12 to 12/12 Pitch,
Galvanized
01514 Vinyl Siding Standoff, Galvanized
01494 Vertical Round Termination, Gal-
vanized
01495 Round Horizontal Termination Kit,
Galvanized
01496 Horizontal Square Termination,
Galvanized
01801 14" Snorkel Termination, Galva-
nized
01802 36" Snorkel Termination, Galva-
nized
VR-58 Vertical Restrictor, Galvanized
01508 Wall Strap
01507 Storm Collar, Galvanized
This manual suits for next models
14
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