Vermont Castings KSTDV500 User manual
73D4125 3/13 Rev. 12
734126
dvkst kstdv cover
273D4125
KSTDV Series Gas Fireplace
High Elevations ........................................................5
Gas Pressures .........................................................5
Gas Specications & Orice Sizes ...........................5
Before You Start .......................................................7
Fireplace Framing ....................................................7
Fireplace Location ....................................................8
Installation Precautions ..........................................11
Installation Clearances ...........................................11
Installation Planning ...............................................12
Vertical/Horizontal Termination Locations ..............13
How to Use the Vent Graph ...................................14
Vertical Sidewall Installation ...................................15
Vertical/Horizontal Termination Congurations ......16
Below Grade Installation ........................................17
Vertical Through-the-Roof Applications ..................18
Installation for Vertical Termination ........................19
Flat Ceiling Installation ...........................................19
Check Gas Type.....................................................21
Install Gas Supply Line ..........................................22
Electrical Wiring .....................................................23
Junction Box Wiring ...............................................24
Command Center Wall Installation .........................24
Wall Switch Installation ..........................................24
Signature Command Wiring Diagram ....................25
Glass Frame Removal ...........................................27
Light & Brick Installation .........................................27
Rock Wool Placement ............................................28
Log Placement .......................................................29
Operating Instructions ............................................33
To Turn Off Gas ......................................................33
Touch Screen Remote Transmitter Operation ........37
Burner, Pilot and Control Compartment .................43
Pilot Flame .............................................................43
Burner Flame .........................................................43
Vent System ...........................................................44
Glass Door .............................................................44
Logs .......................................................................44
Rock Wool .............................................................44
Firebox Components ..............................................46
Signature Command System .................................47
Logs .......................................................................49
Accessories ............................................................50
Vent Components ..................................................51
73D4125 3
KSTDV Series Gas Fireplace
4. Never install the replace
• in a recreational vehicle
• where curtains, furniture, clothing, or other am-
mable objects are less than 42" from the front, top,
or sides of the replace
• in high trafc areas
• in windy or drafty areas
5. This replace reaches high temperatures. Keep chil-
dren 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 touch-
ing.
6. Carefully supervise young children when they are in
the room with replace.
7. Do not modify replace under any circumstances. Any
parts removed for servicing must be replaced prior to
operating replace.
8. Turn replace off and let cool before servicing, install-
ing, or repairing. Only a qualied service person should
install, service, or repair the replace. Have burner
system inspected annually by a qualified service
person.
9. You must keep control compartments, burners, and
circulating air passages clean. More frequent clean-
ing may be needed due to excessive lint and dust.
Turn off the gas valve and pilot light before cleaning
replace.
10. Have venting system inspected annually by a quali-
ed service person. If needed, have venting system
cleaned or repaired. Refer to Cleaning and Mainte-
nance, Page 43.
11. Keep the area around your replace clear of combus-
tible materials, gasoline, and other ammable vapor
and liquids. Do not run replace where these are used
or stored. Do not place items such as clothing or deco-
rations on or around replace.
12. Do not use this replace to cook food or burn paper or
other objects.
13. Never place anything on top of replace.
Please leave these instructions with the appliance.
Please retain these instructions for future reference
.
This replace is a vented product. This replace must be
properly installed by a qualied service person. The glass
door must be properly seated and sealed. If this unit is not
properly installed by a qualied service person with glass
door properly seated and sealed, combustion leakage
can occur.
Early signs of carbon
monoxide poisoning are similar to the u with headaches,
dizziness and/or nausea. If you have these signs, the re-
place may not have been installed properly. Get fresh air
at once! Have the replace inspected and serviced by a
qualied 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 inuence 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.
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.
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 neigh-
bor’s phone. Follow the gas supplier’s instruc-
tions.
473D4125
KSTDV Series Gas Fireplace
14. Do not use any solid fuels (wood, coal, paper, card-
board, etc.) in this replace. Use only the gas type
indicated on rating plate.
15. 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.
16. Do not obstruct the ow of combustion and ventilation
air in any way. Provide adequate clearances around
air openings into the combustion chamber along with
adequate accessibility clearance for servicing and
proper operation.
17. When the appliance is installed directly on carpeting,
tile or other combustible material other than wood
ooring, you must set appliance on a metal or wood
panel or hearth pad extending the full width and depth
of the appliance.
18. Do not use replace if any part has been exposed to
or has been under water. Immediately call a qualied
service technician to inspect the appliance and replace
any part of the control system and any gas control
which as been submerged in water.
19. Do not operate replace if any log is broken.
20. Do not use a blower insert, heat exchanger insert, or
any other accessory not approved for use with this
replace.
21. Do not operate the replace with glass door removed,
cracked, or broken.
Direct Vent type appliances draw all combustion air from
outside of the dwelling through the vent pipe.
These appliances have been tested by CSA and found to
comply with the established standards for DIRECT VENT
GAS FIREPLACE HEATERS in the USA and Canada as
follows:
TESTED TO: ANSI Z21.88-2009 / CSA 2.33-2009 STAN-
DARDS
A manufactured home (USA only) or mobile home OEM
installation must conform with the Manufactured Home
Construction and Safety Standard,
or when such a standard is not applicable, the
, or
.
WARNING
!
HOT GLASS WILL
CAUSE BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
AVERTISSEMENT
!
Un panneau vitré chaud peut
causer des brûlures.
Laissez refroidir le panneau
vitréavant d’y toucher.
Ne laisser jamais les enfants
toucher le panneau vitré.
It is normal for replaces fabricated of steel
to give off some expansion and/or contraction
noises during the start up or cool down cycle.
Similar noises are found with your furnace heat
exchanger or car engine.
It is not unusual for gas replace to give off
some odor the rst time it is burned. This is due
to the manufacturing process.
It is recommended that you burn your replace
for at least ten (10) hours the rst time you use
it. Place the fan switch in the “OFF” position
during this time.
73D4125 5
KSTDV Series Gas Fireplace
• This appliance has been certied for use with either
natural or propane gas. See appropriate data plates.
• This appliance is not for use with solid fuels.
The appliance is approved for bedroom or bedsitting
room installations.
The appliance must be installed in accordance with local
codes if any. If none exist use the current installation
code. ANSI Z223.1/NFPA 54 in the USA, CSA B149 in
Canada.
This appliance is mobile home approved.
The appliance must be properly connected to a venting
system.
The appliance is not approved for closet or recessed
installations.
Input ratings are shown in BTU per hour and are certied
without deration for elevations up to 4,500 feet (1,370
m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the current
ANSI Z223.1/NFPA 54 and/or local codes having juris-
diction.
In Canada, please consult provincial and/or local authori-
ties having jurisdiction for installations at elevations
above 4,500 feet (1,370 m).
Natural Propane (LP)
Inlet Minimum 4.5” w.c. 11.0” w.c.
Inlet Maximum 10.5” w.c. 13.0” w.c.
Manifold Pressure 3.5” w.c. 10.0” w.c.
KSTDV500 Nat. #46 #29
KSTDV500 LP #56 #50
Figure 1 -
KSTDV Controls
FP2543
FP2543
kstdv controls
Control Box
Gas Valve
Command
Center
KSTDV500 Nat. 56,000 37,000 30,000
KSTDV500 LP 56,000 44,000 27,000
673D4125
KSTDV Series Gas Fireplace
Rough
Opening
Height
1/2” or 5/8”
Recessed
Nailing Flange
50” (1270 mm)
Rough Opening Width
Rough
Opening
Depth
36” (914 mm)
396” (1007 mm)
446M”
(1137 mm)
456M”
(108 mm)
4456O”
(1130 mm)
386”
(981 mm)
23”
(584 mm)
24”
(610 mm)
4956O” (1257 mm)
30"
(762 mm)
25”
(635 mm)
1156O”
(292 mm)
734126
DVKST KSTDV DIMS
Figure 2 -
Fireplace and Framing Dimensions
For exterior wall applications, outdoor facing kit
KST500SSDK is required. In these installations, the con-
trol-side of the unit MUST face towards the interior of the
building.
73D4125 7
KSTDV Series Gas Fireplace
Read this homeowner manual thoroughly and follow all
instructions carefully. Inspect all contents for shipping
damage and immediately inform your dealer if any damage
is found. Do not install any unit with damaged, incomplete,
or substitute parts. Check your packing list to verify that
all listed parts have been received. You should have the
following:
• Fireplace (Firebox and Burner System)
• Log Set • Fasteners
• Rock Wool • Restrictor Plate/Disc (2)
• White Toggle Switch • Switch Cover Plate
• Phillips Screwdriver • Framing Materials
• Hammer • Wall Finishing Materials
• Saw and/or saber saw • Level
• Measuring Tape • Pliers
• Electric Drill and Bits • Square
• Pipe Wrench • Tee Joint
• Noncombustible Panel
• Caulking Material (noncombustible)
• Fireplace Surround Material (noncombustible)
• Piping Complying with Local Codes
• Pipe Sealant Approved for use with Propane/LPG
(Resistant to sulfur compounds)
Firebox framing can be built before or after the appliance
is set in place. Construct rebox framing following Figure
2 for your specic installation requirements. The framing
headers may rest on the top of the rebox standoffs. Do
not bring headers below top of standoffs. NOTE: When
planning your framing and installation, keep in mind that
your gas line will come in on the right side of the box (as
you are facing it) and your electricity will come in on the
left side.
The rebox may be installed directly on a combustible oor
or raised on a platform of an appropriate height. When
the rebox is installed directly on carpeting, tile, or other
combustible material, other than wood ooring, the rebox
shall be installed on a metal or wood panel extending the
full width and depth of the enclosure.
Refer to cold climate pilot information on Page 43
for more information on standing pilot vs. intermittent pilot
options.
873D4125
KSTDV Series Gas Fireplace
Plan for the installation of your appliance. This includes
determining where the unit is to be installed, the vent con-
guration to be used, framing and nishing details, and
whether any optional accessories (i.e. blower, wall switch,
or remote control) are desired. Consult your local building
code agency to ensure compliance with local codes, includ-
ing permits and inspections.
The following factors should be taken into consideration:
• Clearance to side-wall, ceiling, woodwork, and windows.
Minimum clearances to combustibles
• This replace may be installed along a wall, across a
corner, or use an exterior chase. Refer to Figure 3 for
suggested locations.
• Location should be out of high trafc areas and away
from furniture and draperies due to heat from appli-
ance.
• Never obstruct the front opening of the replace.
• Do install in the vicinity where gasoline or other
ammable liquids may be stored.
Y
DA
B
C
E
Y
X
LU584
Locating unit
DVT38S2
3/17/04 djt
** Island (C) and Room Divider (D) installation is possible as long
as the horizontal portion of the vent system (X) does not exceed
20’ (610cm). See details in Venting Section.
* When you install your replace in (D) Room divider or (E) Flat
on wall corner positions (Y), a minimum of 6” (152mm) clearance
must be maintained from the perpendicular wall and the front side
edge of the replace.
A Flat on wall
B **Island
C *Room divider
D *Flat on wall corner
E Chase installation
Y 6” minimum
Figure 3 -
Locate Fireplace
For exterior wall applications, outdoor facing kit
KST500SSDK is required. In these installations, the con-
trol-side of the unit MUST face towards the interior of the
building.
• Vent pipe routing. See Venting section found in this
manual for allowable venting congurations.
• These units can be installed in a bedroom. See National
Fuel Gas Code ANSI Z233.1/NFPA 54 — (current
edition), the Uniform Mechanical Code — (current edi-
tion), and Local Building Codes for specic installation
requirements.
• These units can be installed in a bathroom.
73D4125 9
KSTDV Series Gas Fireplace
The combustible area above the facing must
not protrude more than 1/2" from the facing. If it does,
it is considered a mantel and must meet the mantel
requirements listed in this manual.
72”
(1829 mm)
Min.
Ceiling
12”
(305 mm)
Max. Depth
16”
(406 mm)
Min.
6”
(152 mm)
Min.
FP2544
DVKST ceiling wall clearance
Hearth 8” Min.
(203 mm)
Noncombustible
Hearth Minimum
Fireplace Opening
Figure 4 -
Ceiling and Side Wall Clearances
Combustible Mantel
FP2544
45°
1”
4”
5”
6”
”
3”
FP2410
mantel leg clearance
Figure 5 -
Mantel Clearance
Stud
Finish Wall
Combustible
Material Area
FP2488
CFM146d
mantel chart
16”
12”
10”
12”
6”
256O”
Noncombustible
Material to Top of
Standoffs
CFM146d
Top of Fireplace
Opening
10 73D4125
KSTDV Series Gas Fireplace
The replace must be secured to the oor and/or to framing
studs as shown in Figure 6 . Use four (4) wood screws or
masonry/ concrete screws to secure replace to the oor.
Use four (4) screws to attach replace to framing. The side
brackets or nailing anges are designed to accommodate
two wall boards thicknesses, 1/2" or 5/8".
Any remote wiring (i.e. remote control, wall switch,
and optional fan) must be done prior to nal nishing to
avoid costly reconstruction.
Only noncombustible materials (i.e. brick, tile, slate, steel,
or other materials with a UL re rating of Zero) may be
used to cover the black surface of the appliance. A 300°F
minimum adhesive may be used to attach facing materi-
als to the black surface. If joints between the nished wall
and the replace surround are sealed, a 300°F minimum
sealant material (General Electric RTV103 or equivalent)
must be used.
Figure 6 -
Secure Fireplace to Floor and Framing Studs
FP2545
secure fireplace
Nailing Flange
Screws
Framing
FP2545
Noncombustible
Material
Figure 6
73D4125 11
KSTDV Series Gas Fireplace
Consult local building codes before beginning the
installation. The installer must make sure to select the
proper vent system for installation. Before installing vent
kit, the installer must read this replace manual and vent
kit instructions.
Only a qualied installer/service person should install the
venting system. The installer must follow these safety
rules:
• Wear gloves and safety glasses for protection.
• Use extreme caution when using ladders or when on
rooftops.
• Be aware of electrical wiring locations in walls and ceil-
ings.
The following actions will void the warranty on your vent-
ing system:
• Installation of any damaged venting component.
• Unauthorized modication of the venting system.
• Installation of any component part not manufactured or
approved by Vermont Castings Group
• Installation other than permitted by these instructions.
*3”
**1”
**1”
FP2567
KSTDV vent clearances
24”
(610 mm)
72”
(1829 mm)
Figure 7 -
Combustible Clearances for Vent Pipe
* A minimum of 3" clearance to the top is
required along horizontal length until ue pipe
penetrates outside wall.
** A minimum 1" clearance to combustibles
permitted all around ue at outside wall
FP2567
until the
ue penetrates the outside wall.
Z\x
12 73D4125
KSTDV Series Gas Fireplace
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.
Select the amount of vertical rise desired. All horizontal run
of venting must have 1/4" rise for every 12" of run towards
the termination below 7Z\x" of vertical rise from oor of re-
place. With 7Z\x feet or more of vertical rise from the oor
of the replace, the horizontal run may be level. NEVER
run vent piping down.
You may use up to three 90° elbows in this vent congura-
tion. Refer to Vertical/Horizontal Termination Congurations
on Page 16.
Measure the distance from the replace oor to the ceil-
ing. Add the ceiling thickness, the vertical rise in an attic
or second story, and allow for sufcient vent height above
the roof line.
NOTE: You may use two 45° elbows in place of a 90°
elbow. You must follow rise to run ratios when using
45° elbows. The appliance is approved for use with
three 90° elbows maximum or a combination of 90°
and 45° elbows up to a maximum of 270°.
For two-story applications, restops are required at each
oor level. If an offset is needed in the attic, additional pipe
and elbows will be required.
Z\x
You may use a chase with a vent termination with exposed
pipe on the exterior of the house. See Installing Vent
System in a Chase below. If pipe is enclosed in chase, it
is not exposed.
It is very important that the venting system maintain its bal-
ance between the combustion air intake and the ue gas
exhaust. Certain limitations apply to vent congurations
and must be strictly followed.
A chase is a vertical boxlike structure built to enclose
venting that runs along the outside of a building. A chase
is required for such venting.
73D4125 13
KSTDV Series Gas Fireplace
A = Clearance above grade, veranda, porch, 12” (30 cm) 12” (30 cm)
deck, or balcony
B = Clearance to window or door that may be 6” (15 cm) for appliances 6” (15 cm) for appliances
opened < 10,000BTU/h (3kW), 12” (30 cm) < 10,000 BTU/h (3kW), 9”
for appliances > 10,000 Btuh (3kW) and (23 cm) for appliances > 10,000
< 100,000 BTU/h (30kW), 36” (91 cm) Btuh (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW) (15kW), 12” (30 cm) for
appliances > 50,000 BTU/h(15kW)
C = Clearance to permanently closed window 12” (305 mm) recommended to 12” (305 mm) recommended to
prevent window condensation prevent window condensation
D = Vertical clearance to ventilated soft located
above the terminal within a horizontal 18” (458 mm) 18” (458 mm)
distance of 2’ (610mm) from the center
line of the terminal
E = Clearance to unventilated soft 12” (305 mm) 12” (305 mm)
F = Clearance to outside corner see next page see next page
G = Clearance to inside corner (see next page) see next page see next page
H = Clearance to each inside of center line 3’ (91 cm) within a height of 15’ (5 m) 3’ (91 cm) within a height of 15’
extended above meter/regulator assembly above the meter/regulator assembly (5 m) above the meter/regulator
assy
I = Clearance to service regulator vent outlet 3’ (91 cm) 3’ (91 cm)
J = Clearance to nonmechanical air supply inlet 6” (15 cm) for appliances < 10,000 6” (15 cm) for appliances
to building or the combustion air inlet to any BTU/h (3kW), 12” (30 cm) for < 10,000 BTU/h (3kW), 9”
other appliances appliances > 10,000 BTU/h (3kW) and (23 cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91 cm) BTU/h (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW) (15kW), 12” (30 cm) for
appliances > 50,000 BTU/h(15kW)
K = Clearance to a mechanical air supply inlet 6’ (1.83 m) 3’ (91 cm) above if within 10'
(3 m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13 m)† 7’ (2.13 m)†
driveway located on public property
M = Clearance under veranda, porch, deck or 12” (30 cm) 12” (30cm)
balcony
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel
Gas Codes
† A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family
dwellings and serves both dwellings
only permitted if veranda, porch, deck or balcony is fully open on a
minimum 2 sides beneath the oor:
NOTE: 1. Local codes or regulations may require different
clearances.
2. The special venting system used on Direct Vent Fireplaces
are certied as part of the appliance, with clearances
tested and approved by the listing agency.
3. Vermont Castings Group assumes no responsibility for the
improper performance of the appliance when the venting
system does not meet these requirements.
Figure 8 -
Termination Locations
V
X
X
X
D
E
B
B
B
C
B M
B
A
J
K
F
L
VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
H
I
Fixed
Closed
Operable
Operable Fixed
Closed
B
CFM145a
DV Termin Location
5/01/01 Rev. 12/05/01
sta
INSIDE
CORNER DETAIL
A
G
CFM145a
V
V
V
VV
V
V
V
14 73D4125
KSTDV Series Gas Fireplace
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the
relationship between the vertical and horizontal dimensions
of the vent system.
1. Determine the height of the center of the horizontal vent
pipe exiting through the outer wall. Using this dimen-
sion on the Sidewall Vent Graph below, locate the point
intersecting with the slanted graph line.
2. From the point of this intersection, draw a vertical line
to the bottom of the graph.
3. Select the indicated dimension, and position the re-
place in accordance with same.
Example: If the vertical dimension from the oor of the
replace is 11' (3.4 m) the horizontal run to the face of
the outer wall must not exceed 16' (4.9 m).
Sidewall Vent Graph showing the relationship between
vertical and horizontal dimensions for a Direct Vent ue
system.
Figure 10 -
Rear Wall Venting Graph (No Horiaontal Elbows)
Horizontal dimension from the nished outside wall
to the center of the pipe on the replace
Vertical Dimension From the Floor of Unit to the Center of the
Horizontal Vent Pipe
Dimensions in
Feet
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
2 4 6 8 10 1214 16 1820
eg: A
FP2132
sidewall vent graph
72" to Center
of Horizontal
Pipe
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
G =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
G
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
M
Balcony -
with perpendicular side wall
M = 12" (305 mm)
P = 6” (152 mm)
M
F
Alcove Applications*
C
D
C
E
V
V
Combustible &
Noncombustible
E= Min. 2” (51 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O= 8’ (2.4 m) Min.
O
P
V
V
V
584-15
No.
of Caps DMin. CMax.
1 3’ (914 mm) 2 x DActual
2 6’ (1.8 m) 1 x DActual
3 9’ (2.7 m) 2/3 x DActual
4 12’ (3.7 m) 1/2 x DActual
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specied for vinyl or
non-vinyl siding and softs. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a
termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must
be a minimum of 1’ (305 mm) below the termination cap.
Figure 9 -
Termination
Clearances
73D4125 15
KSTDV Series Gas Fireplace
Locate vent opening on the wall. It may be necessary to
rst position the replace and measure to obtain hole lo-
cation. Depending on whether the wall is combustible or
noncombustible, cut opening to size. Figure 11 (For com-
bustible walls rst frame in opening.)
Cut a 10Z\x”H x 10Z\x”W (267 x 267
mm) hole through the exterior wall and frame as shown.
Figure 11
Hole opening must be 8Z\x” (216
mm) in diameter.
VO584-100
Vent Opening
2/99 djt
10Z\x”
(267 mm)
Min.
Fireplace Hearth Framing Detail
8Z\x”
(216 mm)
Fireplace Hearth
FP2293
Figure 11 -
Locate vent opening on wall
10Z\x”
(267 mm) Min.
Secure restop to the inside frame, center in the 10Z\x" x
10Z\x" vent opening.
Place replace into position. Measure the vertical height
(X) required from the base of the ue collars to the center
of the wall opening. Figure 12
Using appropriate length of pipe section(s) attach to re-
place with three (3) screws. Follow with the installation of
the elbow.
Measure the horizontal length requirement guring a 1Z\v”
(32 mm) overlap, i.e. from the elbow to the outside wall
cap. Figure 13
XX
Figure 12 -
Vertical Height
Requirement
FP1384
X
X
Figure 13 -
Horizontal Length
Requirement
FP1385
Use appropriate length of pipe sections - telescopic or
xed - and install.
Guide the vent terminations 5” and 8” collard into their
respective vent pipes. Double check that the vent pipes
overlap the collars by a minimum of 1Z\v" (32 mm). Secure
the termination to the wall with screws provided and caulk
around the wall plate to weatherproof. As an alternative to
screwing the termination directly to the wall, you may also
use expanding plugs or an approved exterior construction
adhesive.
16 73D4125
KSTDV Series Gas Fireplace
The Vent Graph, showing the relationship between vertical
and horizontal side wall venting, will help to determine the
various dimensions allowable. Figure 10
Z\x
When vent exits through foundations less than 20" below
outcrop, the termination must be ush up with outcropped
wall above.
It is best to locate the replace in such a way that minimizes
the number of offsets and horizontal vent length.
The horizontal vent run refers to the total length of vent
pipe from the ue collar of the replace (or the top of the
Transition Elbow) to the face of the nished outside wall.
• The maximum number of 90° elbows per side wall
installation is three (3). Figure 14
Figure 14 -
Maximum Three (3) 90° Elbows Per Installation
3 x 90° Elbows
24" Min.
FP1380
• If a 90° elbow is used in the horizontal vent run (level
height maintained) the horizontal vent length is reduced
by 36". Refer to Figure 16. This does not apply if the 90°
elbows are used to increase or redirect a vertical rise.
According to the vent graph (page 14) the maxi-
mum horizontal vent length in a system with a 10' vertical
rise is 17Z\x’ (5.3 m) and if a 90° elbow is required in the
horizontal vent it must be reduced to 14Z\x' (4.4 m).
In Figure 16 dimension A plus B must not be greater than
14Z\x' (4.4 m).
A
B
10’
FP2546
Horizontal run
reduction
Figure 16 -
Horizontal Run Reduction
FP2546
• A minimum of 24" is required before a 90° elbow. If a 90°
elbow is tted directly after 24" vertical section mounted
to the top of the replace, the horizontal vent run before
the termination must be 36” (914 mm). Figure 15
Max. 20"
(508mm)
36"
(914mm)
FP1381
Figure 15 -
Horizontal Run with Minimum Vertical Rise
24"
(610 mm)
Min.
90° Elbow = 36" (914 mm)
Reduction
73D4125 17
KSTDV Series Gas Fireplace
Example: Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total Angular Variation = 270°
Figure 17 -
Maximum Elbow Usage
1
2
3
4
1
2
3
4
FP1383
Max bends
24" (610 mm)
Minimum
FP1383
2. Remove soil to a depth of approximately 16" below base
of snorkel. Install drain pipe. Install window well (not
supplied). Rell hole with 12" of coarse gravel leaving
a clearance of approximately 4" below snorkel. Figure
18
3. Install vent system.
4. Ensure a watertight seal is made around the vent pipe
coming through the wall.
5. Apply high temperature sealant caulking (supplied)
around the 5" and 8" snorkel collars.
6. Slide the snorkel into the vent pipes and secure to the
wall.
7. Level the soil so as to maintain a 4" clearance below
snorkel. Figure 18
FP2134
below grade install
FP2134 Figure 18 -
Below Grade Installation
Screws
Minimum
4" Clearance
Ground
Window
Well
Gravel
Drain
Foundation
Wall
Firestop
24"
(610 mm)
Minimum
• For each 45° elbow installed in the horizontal run, the
length of the horizontal run MUST be reduced by 18"
(457 mm). This does not apply if the 45° elbows are
installed on the vertical part of the vent system.
• The maximum number of elbow degrees in a system is
270°. Figure 17
When it is not possible to meet the required vent terminal
clearances of 12" above grade level, a snorkel kit is recom-
mended. It allows installation depth down to 7" (178 mm)
below grade level. The 7" (178 mm) is measured from the
center of the horizontal vent pipe as it penetrates through
the wall.
If installing a snorkel, a minimum 24" vertical rise is neces-
sary. The maximum horizontal run with the 24” vertical pipe
is 36". This measurement is taken from the collar of the
replace (or transition elbow) to the face of the exterior wall.
See the Sidewall Venting Graph for extended horizontal
run if the vertical exceeds 24".
1. Establish vent hole through the wall.
If the foun-
dation is
recessed,
use recess
brackets (not
supplied)
for securing
lower portion
of the snorkel.
Fasten brack-
ets to wall rst,
then secure
to snorkel
with self drill-
ing #8 x 1/2
sheet metal
screws. It will
be necessary
to extend vent
pipes out as far as the protruding wall face. Figure 19
FP1966
snorkel
Figure 19 -
Snorkel Installation, Recessed Foundation
Foundation
Recess
Watertight Seal
Around Pipe
Sheet Metal
Screws
Wall Screws
Snorkel
FP1966
18 73D4125
KSTDV Series Gas Fireplace
Install restrictor disc as shown in Figure 20 for vertically
vented applications.
Up to two (2) restrictor discs may be needed for 40' instal-
lation.
The two (2) restrictor discs suppled will work for most instal-
lations. If a third disc is needed order Part No. 56D3027.
FP2707
restrictor disc
Restrictor Disc
Fireplace Collar
FP2707
Figure 20 -
Install Restrictor Disc
into Fireplace Collar
This gas replace has been approved for,
• Vertical installations up to 40' (12 m) in height. Up to
a 20' (6 m) horizontal vent run can be installed within
the vent system using a maximum of two 90° elbows.
Figure 21
Horizontal sections of this vent system require a
minimum of 3" clearances to combustibles at the top of
the ue and 1" clearance at the sides and bottom until the
ue penetrates the outside wall. A minimum 1" clearance
all around the ue is acceptable at this point of penetration.
Unless the vertical run is 7Z\x feet or higher form oor of
replace, the clearance for the horizontal run is 1" on all
sides.
Vertical sections of this vent system require a minimum of
1" clearance to combustibles on all sides of the pipe.
• Up to two 45° elbows may be used within the horizontal
run. For each 45° elbow used on the horizontal plane,
the maximum horizontal length must be reduced by 18"
(457 mm).
B
A
FP1387a
max ht vert term
40' (12 m) Maximum Height
12' (3.7 m) Minimum Height
Support Straps
Every 3'
FP1387a
Figure 21 -
Allowable Horizontal Runs with Vertical
Rises and Terminations
10 12 14 16 18 20
5
6
7
8
9
10
11
FP2917
vert horiz vent graph
A: Vertical
dimension from
the oor to the
center of the
horizontal vent
pipe.
B: Length of horizontal pipe section
before vertical elbow.
(Dimensions in feet)
If the vertical dimension from the oor of the
replace is 8Z\x' (2.6 m), the horizontal run to vertical elbow
must not exceed 16' (4.9 m).
Example: Maximum horizontal length
No elbows = 10’ (3 m)
1x45° elbows = 8.5’ (2.6 m)
2x45° elbows = 7’ (2.1 m)
• A minimum of an 8' (2.5 m) vertical rise is required.
• Two sets of 45°elbows offsets may be used within the
vertical sections. From 0 to a maximum of 8' (2.5 m)
of vent pipe can be used between elbows. Figure 22
• The maximum angular variation allowed in the system
is 270°. Figure 22
• For the minimum height of the vent above the highest
point of penetration through the roof refer to Page 20,
Figure 26.
73D4125 19
KSTDV Series Gas Fireplace
Example: Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total Angular Variation = 270°
24" (610 mm)
Min.
1
2
3
4
1
2
3
4
FP1179
max bends
Figure 22 -
Maximum Elbow
Usage
FP1179
1. Determine the route your vertical venting will take. If
ceiling joist, roof rafters or other framing will obstruct
the venting system, consider an offset. Refer to Figure
24 to avoid cutting load bearing members.
FP1969
offset w/ wallstrap
Figure 23 -
Offset with Wall Strap and 45° Elbows
Roof Flashing
Wall Strap
45° Elbows
Ceiling Firestop
FP1669
For optimal ame appearance, a restrictor disk is necessary
on straight vertical runs of 10' of more.
• Runs may not incorporate elbows.
• The disk is part number 56D3027 and is included in
installation manual packet.
• Drop the disk into a 5" inner collar before installing the
rst section of ue or install at the last section before
installing the termination. Also disk can be installed
from inside the rebox into the 5" inner collar.
• An additional disk may be installed on runs of 35' or
more. Rotate disks perpendicular to each other.
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. Offsets must fall
within the parameters shown in Figures 24 and 25.
2. Set replace in desired location. Drop a line plumb down
from the ceiling to the position of the ue exit. Mark the
center point where the vent will penetrate the ceiling.
Drill a small locating hole a this point.
Drop a plumb line from the inside of the roof to the ceiling
locating hole in the ceiling. Mark the center point where
the vent will penetrate the roof. Drill a small locating hole
at this point.
1. Cut a 10Z\x" (241 mm) square hole in the ceiling using the
locating hole as a center point The opening should be
framed to 10Z\x"x10Z\x" (267 x 267 mm) inside dimensions
as shown in Figure 25 using framing lumber the same
size as the ceiling joist. If the area above the ceiling is
an insulated ceiling or a room, nail restop from the top
side. This prevents loose insulation from falling into the
required clearance space. Figure 23. Otherwise, install
restop below the framed hole. Figure 25
FP1969
firestop w room above
Figure 24 -
If Area Above is a Room, Install Firestop above
Framed Hole as Shown
Firestop
Nails
20 73D4125
KSTDV Series Gas Fireplace
2. Assemble the desired lengths of pipe and elbows nec-
essary to reach from the burner system ue up through
the restop. Be sure pipe and elbow connections are
fully twist-locked.
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 10Z\x"x10Z\x" (267 x 267 mm)
hole must be measured on the horizontal. Actual length
may be larger depending on the pitch of the roof. There
must be a 1" minimum clearance from the vent pipe to
combustible materials. (Insulation should be considered
a combustible material).
4. Connect a section of pipe and extend up through the
hole.
If an offset is needed to avoid obstructions, you
must support the vent pipe every three (3) feet. Use wall
straps for this purpose. Page 18, Figure 21. 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. 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 as
shown in Figure 26.
You must increase vent height for steep roof
pitches. Nearby trees, adjoining roof lines, 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.
If the vent pipe passes through any occupied areas
above the rst oor, including storage spaces and closets,
you must enclose pipe. You may frame and sheetrock the
enclosure with standard construction material. Make sure
to meet the minimum allowable clearances to combustibles.
Do not ll any of the required clearance spaces with
insulation.
10
1
/
2
"
10
1
/
2
"
FP1970
firestop no room
Figure 25 -
If Area Above is Not a Room, Install Firestop above
Framed Hole as Shown
Nails Firestop
FP1970
2 ft.
Min. 2 ft. Min.
X
12
H*
FP1971
Min chimney clearance
Horizontal Overhang
Termination
Vent
Lowest
Discharge
Opening
Storm Collar
Flashing
Concentric
Vent Pipe
1" Minimum
Clearances to
Combustibles
Vertical Wall
FP1971
Figure 26 -
Minimum Chimney Clearance
Flat to 6/12 1.0
Over 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
*H - Minimum height from roof to
lowest discharge opening of vent
Table of contents
Other Vermont Castings Indoor Fireplace manuals
Vermont Castings
Vermont Castings WinterWarm Fireplace Insert or System User manual
Vermont Castings
Vermont Castings ASH42 User manual
Vermont Castings
Vermont Castings DVRT36 Mounting instructions
Vermont Castings
Vermont Castings Chateau DVT44 Assembly instructions
Vermont Castings
Vermont Castings Majestic BFC36 Mounting instructions
Vermont Castings
Vermont Castings BLDV300N SC7SB User manual
Vermont Castings
Vermont Castings Chateau DVT38 Assembly instructions
Vermont Castings
Vermont Castings UVL18RP User manual
Vermont Castings
Vermont Castings DSR36 User manual
Vermont Castings
Vermont Castings Insert Studio LHEC30 Operating instructions
Vermont Castings
Vermont Castings 500DVM Manual
Vermont Castings
Vermont Castings ExtremeView 33XDV Assembly instructions
Vermont Castings
Vermont Castings RFSDV24 Assembly instructions
Vermont Castings
Vermont Castings A232 User manual
Vermont Castings
Vermont Castings OD24SHKN User manual
Vermont Castings
Vermont Castings ExtremeView 33XDV User manual
Vermont Castings
Vermont Castings ICFDV40LNTSC User manual
Vermont Castings
Vermont Castings D232 User manual
Vermont Castings
Vermont Castings A18CFLRN/P User manual
Vermont Castings
Vermont Castings RFSUV34 Mounting instructions
Popular Indoor Fireplace manuals by other brands
Regency
Regency U30-NG and Installation and operating instructions
Vexar
Vexar CEF32M OWNER'S OPERATION AND INSTALLATION MANUAL
Nordpe
Nordpe Duo 1 Installation and user manual
Dynasty Fireplaces
Dynasty Fireplaces Melody Series installation guide
HearthStone
HearthStone Tucson 8702 ST owner's manual
Lopi
Lopi Freedom Bay ND owner's manual
Heatilator
Heatilator BIR50-B owner's manual
Empire
Empire LSU24RR-2 Installation instructions and owner's manual
Rinnai
Rinnai Arriva Operation and installation manual
Dimplex
Dimplex XHD23G Service manual
Regency Fireplace Products
Regency Fireplace Products DVi34L Series Owners & installation manual
MHSC
MHSC CDVR33N/PV7 Installation and operating instructions
Nordpeis
Nordpeis Cannes CC-CAN0X-100 installation manual
tepro
tepro TOPEKA XL operating manual
Cadel
Cadel ZEFIRO3 Installer manual
Regency Fireplace Products
Regency Fireplace Products Horizon HZO42-NG Owners & installation manual
Flame
Flame MONACO FL063 Installation and operation manual
Chicago Electric
Chicago Electric 91797 Assembly and operating instructions