Valor LX1 Series User manual

©2019, Miles Industries Ltd.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings
exactly could result in serious
injury, death, or property damage.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
▪Do not try to light any appliance.
▪Do not touch any electrical switch; do
not use any phone in your building.
▪Leave the building immediately.
▪Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
▪If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.
Hot glass
will cause burns.
Do not touch glass
until cooled.
Never allow children
to touch glass.
A barrier designed to reduce
the risk of burns from the hot
viewing glass is provided with this
appliance and must be installed for
the protection of children and
other at-risk individuals.
DANGER
Installer: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.
Direct Vent Zero Clearance
Gas Fireplace
natural gas 2100PKN
propane gas 2100PKP
Installation Manual
LX1
4007364-01
PIER

Ce guide est disponible en français sur demande.
This appliance is a domestic room-
heating appliance. It must not be used
for any other purposes such as drying
clothes, etc.
This appliance is suitable for
installation in a bedroom or bed
sitting room.
2
The information contained in this manual is believed
to be correct at the time of printing. Miles Industries
Ltd. reserves the right to change or modify any
information or specifications without notice. Miles
Industries Ltd. grants no warranty, implied or stated,
for the installation or maintenance of your heater,
and assumes no responsibility for any consequential
damage(s).
© Copyright Miles Industries Ltd., 2019. All rights reserved.
Designed and manufactured for Miles Industries Ltd.
Valor Fireplaces
190–2255 Dollarton Highway
North Vancouver, BC, Canada V7H 3B1
T 604.984.3496 F 604.984.0246
valorfireplaces.com
This appliance may be installed in an
after-market permanently located,
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 certified
kit is used.
INSTALLER: Leave this manual with the
appliance.
CONSUMER: Retain this manual for
future reference.
Massachusetts:
The piping and final gas connection must be
performed by a licensed plumber or gas fitter
in the State of Massachusetts. Also, see Carbon
Monoxide Detector requirements in the fireplace
installation manual.
WARNING
This product can expose you to chemicals
including Benzene, which is known to the State
of California to cause cancer and birth defects or
other reproductive harm. For more information
go to www.P65Warnings.ca.gov.
Note: Natural gas, in its original state, contains
Benzene.

Please read this manual BEFORE
installing and operating this
appliance.
3
This appliance has been professionally installed by:
Dealer Name: ________________________________
Phone:______________________________________
Welcome to Valor®
Fireplace Safety ................................................. 4
Specifications..................................................... 6
Kits & Accessories.............................................. 7
About the HeatShift®System.....................................7
Dimensions and Location................................. 8
Installation Planning ......................................... 9
Before Installing............................................................9
Overview - Wood Framing .........................................10
Overview - Steel Framing...........................................11
Overview - HeatShift Canopy....................................12
Clearances to Combustibles .....................................13
Wood Framing .............................................................14
Steel Framing Kit .........................................................15
Vent Height Considerations ......................................16
Wall Finish ....................................................................17
Screwing and Drilling Restrictions...........................18
Venting .............................................................. 19
Materials Overview ....................................................19
Co-axial........................................................................ 20
Typical Co-axial Venting Components ....................20
Venting Chart ..............................................................21
Restrictor Location.....................................................22
Horizontal Vent Termination Location....................23
Vertical Vent Termination .........................................24
Co-linear Venting ....................................................... 25
Appliance Preparation.................................... 26
Unpacking the Fireplace ........................................... 26
Installing Handles ...................................................... 27
Installing Standoffs ................................................... 28
Installation ....................................................... 29
Installing Electrical Wiring ........................................29
Connecting Gas Supply .............................................31
Installing Wall Switch Kit ...........................................33
WiFi Module (Optional)..............................................35
Liners ........................................................................... 36
Installing a Ceramic Liner..........................................36
Installing a Glass Liner...............................................37
Fuel Beds ..................................................................... 38
Installing Birch Log Kit 2100BLK ..............................38
Installing Driftwood Kit 2100DWK.......................... 40
Installing Rock and Shale Set 2100RSS ...................42
Installing Glass Murano Set 2100DGM.................. 44
Remote Control Set-Up ............................................. 45
Installing Remote Control Handset Wall Holder .. 46
Replacing Light Bulbs ................................................ 47
Re-installing Windows .............................................. 48
Checking Operation and Aeration .......................... 49
Installing Plates and Barrier Screens ..................... 50
Wiring Diagram................................................ 51
Approved Venting Components.................... 52
Commonwealth of Massachusetts ............... 54
Spare Parts ....................................................... 56
Appendix A - Lighting Instructions Plate...... 60
Appendix B - Remote Control Operation..... 61
Appendix C - Wall Switch Operation............. 68
Appendix D - HeatShift ................................... 69

4
Fireplace Safety
This manual contains very important information about the safe installation and operation of the fireplace. Read and
understand all instructions carefully before installing and operating the fireplace. Failure to follow these instructions
may result in possible fire hazard and will void the warranty.
Replacement manuals are available by contacting the Valor Customer Service at 1-800-468-2567, or by visiting
valorfireplaces.com.
WARNING: Extremely Hot!
Heat and flammability
• Some parts of the fireplace are extremely hot, particu-
larly the glass windows. Use the barrier screens pro-
vided or a gate to reduce the risk of severe burns.
• The glass windows can exceed 500°F at full capacity.
• Always keep the appliance clear and free from combus-
tible materials, gasoline, and other flammable vapors
and liquids.
• Be aware of hot wall surfaces! The walls directly above
the fireplace can get very hot when the fireplace heats.
Although safe, it may reach temperatures in excess of
200ºF (93°C) depending on choice of optional accesso-
ries. Do not touch!
• Be aware of hot hearth/floor surfaces! Any projections
directly around the fireplace can get very hot when the
fireplace heats. Although safe, they may reach temper-
atures in excess of 200ºF (93°C)depending on elevation
of hearth. Be careful of touching these! Temperature
of projection surfaces will be reduced when barrier
screens are installed.
• Some materials or items, although safe, may discolor,
shrink, warp, crack, peel, and so on because of the heat
produced by the fireplace. Avoid placing candles, paint-
ings, photos and other combustible objects sensitive
to heat or furniture within 36 inches (0.9m) around the
fireplace.
• If installed with the HeatShift canopy, do not place
items on top of the fireplace. This space is not a shelf
(see Overview - HeatShift Canopy page 12).
• Due to it high temperatures, the appliance should be
located out of traffic areas and away from furniture and
draperies.
• Any safety screen, guard, or barrier removed for servic-
ing an appliance must be replaced prior to operating
the appliance
• Children and adults should be alerted to the hazards
of high surface temperature and should stay away to
avoid burns or clothing ignition.
• Young children should be carefully supervised when
they are in the same room as the appliance. Toddlers,
young children, and others may be susceptible to
accidental contact burns. A physical barrier is recom-
mended if there are at-risk individuals in the house. To
restrict access to a fireplace or stove, install an adjust-
able safety gate to keep toddlers, young children, and
other at-risk individuals out of the room and away from
hot surfaces.
• A barrier designed to reduce the risk of burns from the
hot viewing glass is provided with this appliance and
shall be installed for the protection of children and
other at-risk individuals
• Clothing or flammable material should not be placed on
or near the appliance.
Fireplace
Do not put
furniture or objects
within this area!
24”
[915 mm]
36”
[610 mm]

5
Glass windows
• The glass front assemblies must be in place and sealed
before the unit can be placed into safe operation.
• The glass front assemblies must only be replaced as
complete units, as supplied by the fireplace manufac-
turer. No substitute material may be used.
• Do not use abrasive cleaners on the glass front assem-
blies. Do not attempt to clean the glass when it is hot.
Venting
• This unit must be used with a vent system as described
in this manual. No other vent system or components
may be used.
• Never obstruct the flow of combustion and ventilation
air. Keep the front of the appliance clear of all obstacles
and materials for servicing and proper operation.
WARNING
Do not operate this appliance with the
glass front removed, cracked, or broken.
Replacement of the glass front should
be performed by a licensed or qualified
service person. Do not strike or slam the
glass front.
Fireplace Safety
• This gas fireplace and vent assembly must be vented
directly to the outside and must never be attached to
a chimney serving a separate solid fuel burning ap-
pliance. Each gas appliance must use a separate vent
system. Common vent systems are prohibited.
Intended use
• This appliance is designed and approved as a supple-
mental heater and provides the potential for most en-
ergy conservation when used while attended. The use
of an alternate primary heat source is advisable.
• This unit is not for use with solid fuel.
• Do not use this heater as a temporary source of heat
during construction.
Installation and Servicing
• Installation and repair should be done by a qualified
service person. The appliance should be inspected
before use and at least annually by a professional ser-
vice person. More frequent cleaning might be required
due to excessive lint from carpeting, bedding material,
et cetera. It is imperative that control compartments,
burners, and circulating air passageways of the appli-
ance be kept clean.
Front outlet
Top of fireplace
Ceiling outlet
WARNING
HeatShift
System:
Do not cover
or place items
in front of or
above outlet(s)
or on top of
fireplace!

6
Specifications
Approval & Codes
This appliance is certified to ANSI Z21.88-2017/CSA
2.33-2017 American National Standard / CSA Standard
for Vented Gas Fireplace Heaters for use in Canada
and USA, and to CGA 2.17-91 High Altitude Standard in
Canada. This appliance is for direct vent installations.
This appliance complies with CSA P.4.1-15 Testing
method for measuring annual fireplace efficiencies.
The installation must conform to local codes or, in
the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 or the Natural Gas
and Propane Installation Code CAN/CGA-B149.1. Only
qualified licensed or trained personnel should install
this appliance.
This appliance 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.
Ratings
*High Altitude Installations
Input ratings are shown in BTU per hour and are
certified 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 and/or local codes having jurisdiction.
Heating value of gas in some areas is reduced to
compensate for elevation—consult your local gas
utility to confirm.
For installations at elevations above 4,500 feet
(1,370 m) in Canada, please consult provincial and/or
local authorities having jurisdiction.
Model 2100PKN 2100PKP
Gas Natural Propane
Altitude (Ft.)* 0-4,500 feet*
Input Maximum (Btu/h) 25,000 25,000
Input Minimum (Btu/h) 14,000 14,000
Manifold Pressure (in w.c.) 3.5” 10”
Minimum Supply Pressure (in w.c.) 5” 11”
Maximum Supply Pressure (in w.c.) 10” 14”
Main Burner Injector Marking 42 53
Pilot Injector Marking 51 30
Min. Rate By-Pass Screw 185 125
Supply Gas
Heater engine 2100PKN is used with natural gas.
Heater engine 2100PKP is used with propane gas.
The supply pressure must be between the limits
shown in the Ratings section.
The supply connection is 1/2” NPT male and located
on the wall end of the firebox. See page 31.
A shutoffvalve is supplied on the supply line to isolate
the unit during service. See Connect Gas Supply section
for details.
Electrical
The 2100P is designed to run on battery power and
does not require an electrical source to operate
as a heater. However, it requires electrical power
to operate the overhead lighting, the WiFi module
(optional), or 1270RBK Remote Blower Kit (optional)
Conversion Kits
The 2100P is supplied as natural gas or propane gas
and is field convertible between fuels. See instructions
packaged with the conversion kits for further
information.
Gas shutoff
location
Note: This appliance is designed and approved as
a supplemental heater and provides the potential
for most energy conservation when used while
attended. The use of an alternate primary heat
source is advisable.
WARNING
A HeatShift kit is required with this
fireplace.

7
Required Kits
Above information accurate at the time of printing and subject to change without notice.
Optional Accessories
Fuel Beds (choose one)
2100BLK Birchwood Log Kit
2100RSS Rock and Shale Set
2100DWK Driftwood Log Kit
2100DGM Decorative Glass Murano Set
Liners (choose one)
2100RGP Reflective Glass Panel
2200FBP Fluted Black Panel
2200LMP Limestone Panel
HeatShift Outlets (choose one)
LDK3 14” Plenum (2), includes grilles
LDK4 38” Plenum (compatible with Remote Blower Kit 1270RBK)
LDK7 Duct Termination Plates (2) for wall valance discharge ONLY
2100HSC HeatShift Canopy kit
HeatShift Accessories (choose as needed)
LDK5 38” Finishing Frame, to use with LDK4
LDK6 5” diameter Aluminum 2-ply Flex Kit (qty 2 x 10’ lengths, may be cut to required
length)
Gas Conversion Kits
2100NGK Natural Gas Conversion Kit
2100PGK Propane Gas Conversion Kit
Other Accessories
1270RBK Remote Blower Kit (requires use of HeatShift LDK4 kit)
2100SFK Steel Framing Kit
GV60WIFI WiFi Module
Hearth Gate Hearth gates such as Cardinal’s VersaGate are available at retail stores carrying
safety products for children.
Kits & Accessories
About the HeatShift®System
The 2100 MUST be installed with a HeatShift Duct
Kit, a convection system that redistributes the warm air
flow away from the fireplace opening to a more desirable
location using natural convection, without the use of a
fan.
The warm air flow may be relocated to a position higher
up the wall, out the sidewall, or even to another room.
The result is a much cooler wall temperature above the
fireplace opening for locating televisions, artwork, etc.
Refer to Appendix D of this manual for more information.

8
Dimensions and Location
Location
Top View
Front ViewEnd View Wall End View
Gas Line Stub at wall end
1/2” NPT male
7” [179 mm]
WRȵDQJHG
RSHQLQJ
HeatShift
5” dia.
outlets (4)
4” x 6-5/8” vent collar
5/8”
[16 mm]
ȴQLVKLQJ
ȵDQJHV
Temporary valve access
GXULQJLQVWDOODWLRQ
on this side only
Center
of vent
17”
[432 mm]
8”
[203 mm]
11-1/4”
[286 mm]
11”
[279 mm]
18-1/2” [470 mm]
9-1/4”
[235 mm]
18-1/2”
[470 mm]
9-1/4” [235 mm]
47-1/4” [1200 mm]
36” [915 mm]
46-3/4” [1187 mm]
Window 31-1/8” [791 mm]
Center of vent
6WDQGR΍
5/8”
[16 mm]
ȴQLVKLQJ
ȵDQJHV
Electrical Inlet Point
at wall end
Electrical
Inlet Point
Gas Line
Stub
Center
of vent
5-7/8”
[875 mm]
4”
[102 mm]
10-1/4”
[261 mm]
Temporary valve access
GXULQJLQVWDOODWLRQ
on this side only
Dimensions

9
Installation Planning Before Installing
1. YOU NEED TO KNOW FROM THE HOMEOWNER:
• The thickness and type of wall finish around the
appliance.
• What accessories (if any) will be installed with this
unit.
2. Unpack the appliance but keep the barrier screens in
their packaging to protect them. Recycle the packag-
ing.
3. Remove one of the windows (see page 26) and
remove all items inside the firebox.
4. Check that you have everything, using the Pack Con-
tent sheet. Also, check that you have:
• A fuel bed (packed separately)
• A liner (packed separately)
• Remote Battery and Wall Switch Kit
• HeatShift duct kit (mandatory, packed separately)
• Gas conversion kit (if necessary)
• Venting accessories
• Electrical accessories
5. Carefully read the Installers Checklist included with
the fireplace for the installation sequence.
Note: The following steps must be done BEFORE
the appliance is placed in its final position, since the
connections are done from the back of the appliance:
• Electrical connections
• Gas connections
• Gas conversion (if needed)
• Wiring of the Remote Battery and Wall Switch
Kit (RBWSK)
Caution
Only qualified, license, or trained personnel
should install this appliance.
WARNING
A HeatShift kit MUST be installed on this
appliance!

10
Installation Planning Overview - Wood Framing
Installers can implement an all-wood framing installation
for full height installations. Included standoffs on top of
the unit give minimum clearance for combustible framing
materials from the top of the unit.
HeatShift front outlet
(top and side available)
Wood framing - see
Framing Considerations
1/2” thick non-combustible
cement board required from
bottom of window to standoff
height (not supplied)
Remote Battery and
Wall Switch Kit (re-
quired and supplied)
c/w 35’ wire length
Remote control hand-
set wall holder, to be
mounted min. 3’ away
from fireplace opening
Combustible wall finish up
to 1-1/4” thick allowed below
opening. Combustible projec-
tions must otherwise be kept
min. 4” below opening.
Combustible wall finish up to
1-1/4” thick allowed above ce-
ment board
Wood base below fireplace
2100P heater
Mandatory HeatShift Plenum
or Duct Termination plates
(top). HeatShift system ordered
separately. See also “Overview -
HeatShift Canopy” on page 12
for other options.
Standoffs (4)
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
WARNING
Some materials or items, although safe,
may discolor, shrink, warp, crack, peel, and
so on because of the heat produced by the
fireplace. Avoid placing candles, paintings,
photos, and other items sensitive to heat
around the fireplace.
WARNING
HOT WALL SURFACES! The walls directly
above the fireplace are constructed of non-
combustible materials and, although safe,
may reach temperatures in excess of 200°F
(93°C) depending on choice of materials. Do
not touch. Finish the walls using materials
suitable for these temperatures.
Vent collar supplied as
4 x 6-5/8” coaxial outlet (vent
may require offset to clear
HeatShift plenum above)
5” Ø HeatShift ducts (4) connect
to HeatShift plenum or termi-
nation plates

11
Installation Planning Overview - Steel Framing
HeatShift front outlet
(top and side available)
Steel framing - see
Framing Considerations
Vent collar supplied as
4 x 6-5/8” coaxial outlet (vent
may require offset to clear
HeatShift plenum above)
5” Ø HeatShift ducts (4) con-
nect to HeatShift plenum or
termination plates
1/2” thick non-combustible ce-
ment board required from bot-
tom of window to 11-1/4” above
fireplace top (not supplied)
Remote Battery and
Wall Switch Kit (re-
quired and supplied)
c/w 35’ wire length
Remote control hand-
set wall holder, to be
mounted min. 3’ away
from fireplace opening
Combustible wall finish up
to 1-1/4” thick allowed below
opening. Combustible projec-
tions must otherwise be kept
min. 4” below opening.
Combustible wall finish up to
1-1/4” thick allowed over top of
cement board
Steel pedestal/base below
fireplace (included with kit)
2100P heater
The easiest way to frame a ceiling height installation, the
Steel Framing Kit (2100SFK) allows installers to quickly
and easily install a complete framing option purpose-built
and size for the 2100P. Refer to the Installation Manual
for this kit for more details
Fixed to wall with mounting
studs (wood)
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
WARNING
HOT WALL SURFACES! The walls directly
above the fireplace are constructed of non-
combustible materials and, although safe,
may reach temperatures in excess of 200°F
(93°C) depending on choice of materials. Do
not touch. Finish the walls using materials
suitable for these temperatures.
Mandatory HeatShift Plenum
or Duct Termination plates
(top). HeatShift system ordered
separately. See also “Overview -
HeatShift Canopy” on page 12
for other options.
WARNING
Some materials or items, although safe,
may discolor, shrink, warp, crack, peel, and
so on because of the heat produced by the
fireplace. Avoid placing candles, paintings,
photos, and other items sensitive to heat
around the fireplace.

12
Installation Planning Overview - HeatShift Canopy
1/2” thick non-combustible
cement board required above
bottom of window
Easy vertical venting using
supplied 4 x 6-5/8” coaxial
outlet and two 45° elbows (not
included) or vent through wall
Sheet metal structure to sup-
port non-combustible finishes
Remote Battery and
Wall Switch Kit (re-
quired and supplied)
c/w 35’ wire length
Remote control hand-
set wall holder, to be
mounted min. 3’ away
from fireplace opening
Vertical components are fixed
to wall with mounting studs
(wood)
Steel pedestal (optional, not
included) or wood base al-
lowed but not required
2100P heater
HeatShift flex pipes to top
outlet (two 5” Ø)
For installations that do not extend vertically all the way to the ceiling, the
HeatShift Canopy kit (2100HSC) allows the installer to install the fireplace
and offset the HeatShift system to the side, maintaining visual space above
the fireplace. Refer to the Installation Manual for this kit for more details.
HeatShift canopy collects and
redirects hot convected air to
the side into two 5” Ø pipes
Top HeatShift discharge (min.
2-1/2” clearance below ceiling)
Combustible wall finish up
to 1-1/4” thick allowed below
opening. Combustible projec-
tions must otherwise be kept
min. 4” below opening.
1/2” thick non-combustible
cement board required from
bottom of window to 11-1/4”
above fireplace top (not
supplied)
This space is not a shelf
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
WARNING
HOT WALL SURFACES! The walls directly
above the fireplace are constructed of non-
combustible materials and, although safe,
may reach temperatures in excess of 200°F
(93°C) depending on choice of materials. Do
not touch. Finish the walls using materials
suitable for these temperatures.
WARNING
Some materials or items, although safe,
may discolor, shrink, warp, crack, peel, and
so on because of the heat produced by the
fireplace. Avoid placing candles, paintings,
photos, and other items sensitive to heat
around the fireplace.
Variable total installation
height by raising top enclosure

13
Installation Planning
Fireplace
Do not put
furniture or objects
within this area!
24”
[915 mm]
36”
[610 mm]
4”
[102 mm]
Min. 9” [229 mm]
beyond, can be combustible
47-1/4” [1197 mm]
Non-combustible material
Combustible projections allowed in this area provided area is separated
IURPWKHPDLQFDYLW\E\QRQFRPEXVWLEOHZDOOȴQLVK2WKHUZLVHHYHU\WKLQJ
EHORZVWDQGR΍KHLJKWDQGZLWKLQFDYLW\PXVWEHQRQFRPEXVWLEOH
1RQFRPEXVWLEOHZDOOȴQLVK
KHUHVHSDUDWLQJFDYLW\IURP
combustible projections
1RQFRPEXVWLEOHZDOOȴQLVK
KHUHVHSDUDWLQJFDYLW\IURP
combustible projections
2QO\QRQFRPEXVWLEOH
material in contact
with the appliance above
ERWWRPHGJHRIRSHQLQJ &RPEXVWLEOHȴQLVKLQJPDWHULDOVup toȋPPWKLFNQHVVDOORZHGEHORZRSHQLQJKHLJKW
Combustible projections greater thanȋPPPXVWEHNHSWPLQȋPPEHORZRSHQLQJ
45°
Fireplace
RSHQLQJ
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within 4” (102 mm)
EHORZRSHQLQJPXVW
be non-combustible
)UDPLQJ)LQLVKLQJRISURMHFWLRQV
([WHQVLRQVDURXQGȴUHSODFHRSHQLQJ
must be non-combustible material to 9”
4” clearance from appliance
face to combustible wall (studs
allowed as shown)
4” [102 mm]
Combustible wall surface
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
Clearances to Combustibles

14
Installation Planning Wood Framing
10-1/4”
[261 mm]
15”
[381 mm]
8”
[204 mm]
11-1/4”
[286 mm]
46-1/2” [1181 mm]
18-1/2”
[470 mm]
Combustible wall finish zoneNon-combustible wall finish zone
Combustible framing
material. See “Appendix
D” for details.
1/2” [13 mm] non-
combustible cement
board required in this
zone. May be covered
with max. 3/4” [19 mm]
combustible finish.
Combustible projec-
tions must otherwise
conform to allowable
clearances. See “Clear-
ances to Combustibles”
on page 13.
Max 1-1/4” [32 mm]
thickness combustible
wall finish allowed, if
within 4” of opening.
Combustible framing
material allowed.
Zero clearance stand-
offs (2 front, 2 rear).
HeatShift pipes (4)
5” Ø connect to ple-
num or termination
plates above, see
Appendix D.
HeatShift plenum or duct plates framing required (top,
front, or sides). See “Appendix D” in this manual.
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
46-3/4” [1187 mm]
From wall
2”
[51 mm]
Requires steel stud
under outlet open-
ing when using LDK4
plenum.
WARNING
There are restrictions for where drilling and
screwing may take place. See page 18 for details.

15
Installation Planning Steel Framing Kit
10-1/4”
[261 mm]
2”
[51 mm]
15”
[381 mm]
8”
[204 mm]
11-1/4”
[286 mm]
(non-combusti-
ble clearance)
46-1/2” [1181 mm]
46-3/4” [1187 mm]
From wall
18-1/2”
[470 mm]
1/2” [13 mm] non-com-
bustible cement board
required in this zone.
May be covered with
max. 3/4” [19 mm] com-
bustible finish. Combus-
tible projections must
otherwise conform to
allowable clearances.
See “Clearances to Com-
bustibles” on page 13.
Max 1-1/4” [32 mm]
thickness combustible
wall finish allowed if
within 4” of opening.
Combustible finishing
material allowed.
HeatShift plenum or duct plates framing required (top,
front, or rear). See “Appendix D” in this manual.
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
9-5/8”
[245 mm]
Combustible studs (2)
proud of wall surface
required to mount
framing kit. Requires
solid connection to
studs behind wall.
Combustible wall finish zone
Min 1/4” [6 mm]
gap between sec-
tions
Min 1/4” [6 mm]
gap between sec-
tions
30”
[762 mm]
11-5/8”
[295 mm]
Use self-drilling screws
when applying wall fin-
ishes (up to 2 layers).
Non-combustible wall finish zone
HeatShift pipes (4) 5”
Ø connect to plenum
or termination plates
above, see Appendix D.
WARNING
There are restrictions for where drilling and
screwing may take place. See page 18 for details.

16
Installation Planning Vent Height Considerations
9-7/8”
[251 mm]
17”
[432 mm]
11”
[279 mm]
8”
[203 mm]
43”
[1092 mm]
4”
[102 mm]
Min. clearance
to combustibles
5-7/8”
[149 mm]
7”
[178 mm]
Max. 18” [457 mm]
length at this height
4x6-5/8” elbow directly
on the appliance
Minimum Vertical Vent
Below is the minimum vent height when the elbow is placed directly on the appliance collar*. If calculating the vent
height using additional vent lengths, subtract approximately 1-1/2” for each pipe joint. For example, an additional 12”
pipe section will add approximately 10-1/2” overall to this dimension.
*

17
Installation Planning Wall Finish
Non-Combustible Materials Specifications
Material which will not ignite and burn. Such materials
are those consisting entirely of steel, iron, brick, tile,
concrete, slate, glass, or plasters, or any combination
thereof.
Materials that are reported as passing ASTM E 136,
Standard Test Method for Behavior of Materials in a
Vertical Tube Furnace at 750 °C shall be considered non-
combustible materials.
Combustible Materials Specifications
Materials made of or surfaced with wood, compressed
paper, plant fibers, plastics, or other material that
can ignite and burn, whether flame proofed or not,
or plastered or unplastered shall be considered
combustible materials.
Non-Combustible Cement Board
The LX1 fireplace requires a 1/2” [13 mm] thick non-
combustible cement board to be used as a wall surface
as indicated in “Clearances to Combustibles” on page 13.
This is generally defined as the area from the bottom
of the fireplace’s opening to the height of the standoffs
(whether or not they are used).
Extending the cement board well beyond the minimum
will help avoid cracking due to differential expansion of
materials.
Pre-drill cement board with oversized holes and do
not over-tighten screws to avoid cracking due to heat
expansion.
Standard gypsum wall board may be used beyond the
required perimeter of the cement board.
Preventing Cracking Wall Finishes
The HeatShift Duct Kit reduces the wall temperatures
and minimizes the possibility of cracking wall finishes.
If a clean finish with no tile, etc, is desired, joints in the
cement board and the transition to gypsum board
will require special attention if future cracking is to
controlled.
Shrinkage and differential movement of the framing
and non-combustible wall board can transmit cracking
through to tiles, etc.
Be aware that temperatures on the non-combustible wall
surface above the appliance can exceed 200°F.
Below are some tips on how best to avoid any cracking:
• Allow materials to dry thoroughly before
finishing the wall. Cement board has the ability to
absorb up to 30% of its weight in water and may
shrink as much as 1/8” over a 48” length when
drying from a saturated condition. Running the
fireplace before final finishing will help drive out
moisture.
• Always pre-drill screw holes through cement
board and use screws with self-milling head.
• Always use tape over joints.
• Behind joints, double up studs or use studs
“on the flat” to add extra support to the
joint. Adhesive on the backside of wall board
behind any joints can help control differential
movement.
• Use multiple, thinner coats of joint compound
and allow to dry thoroughly between coats.
• Ensure framing materials are dry.
• After finishing the wall, introduce heat gradually
to slowly dry any excess moisture rather than
drying too fast.
• Avoid notching cement board or tiles around
corners of window openings. Instead, provide a
joint that intersects the corner.
Cracks
Provide joints
either here or
here

18
Wall Finish
Installation Planning
Screwing and Drilling Restrictions
Because of gas, controls, and electrical services behind
the fireplace’s walls, there are two areas where you must
not drill or place screws.
See the diagrams at right for dimensional details of these
restricted areas.
WARNING
DO NOT SCREW OR DRILL in the areas
marked in the diagrams at right. Electric
shock and/or explosion risk present.
WARNING
In ANY area of the fireplace (even outside
of the restricted areas) choose a screw
length that will not intrude into the interior
of the fireplace more than 3/8” [10 mm]
deep.
Gas and Controls Side
Electrical Side

19
10” (254 mm)
10” (254 mm)
Align the vent
center to the center
of the frame
Venting
Vent Material
This unit is approved for installation using 4 x 6-5/8-inch
co-axial direct vent pipe and accessories as listed in the
“Approved Venting Components” table starting on page
53 of this manual. Follow the installation instructions
supplied with the individual venting accessories.
This unit may also be converted to co-linear venting
with two 3” pipes for use in solid-fuel burning fireplaces
and chimneys using approved adapters and accesso-
ries. See “Approved Venting Components” on page 53.
Vent Sealing
Seal all outer coaxial pipe and elbow joints, including
sectioned elbow joints, using high quality, high
temperature 2 inch wide self-adhesive aluminum foil
tape (Nashua-322-2 brand or similar). Wrap the tape
completely around all joints and press firmly to seal.
A high temperature black silicone sealant may be used
in the outer joints as a substitute to foil tape.
Ensure all the pipe joints have a minimum of 1¼ inch
overlap.
Wall Thickness
The appliance vent is suitable for penetrating a
combustible wall assembly up to 8 inches in thickness.
A non-combustible wall can be of any thickness up to
the maximum horizontal run of vent pipe allowed for
the particular installation.
Tape all joints
(including all
elbow joints)
Framing Vent in Combustible Walls & Ceilings
When penetrating through combustible walls and
ceilings, frame a minimum of 10 in x 10 in opening and
ensure that the insulation is kept clear of the vent pipe
using either a wall thimble or an attic insulation shield.
Follow the installation instructions supplied with the
individual venting components.
Important Installer Notice – Weather
Sealing & Vapor Barriers
It is the installer’s responsibility to ensure that vent
installations through exterior walls are caulked and
weatherproofed in such a manner as to:
• Prevent rain water from entering the wall from the
weather side by adequately caulking the outer vent
plate to the exterior wall surface.
• Prevent moisture inside the home from penetrating
into the wall structure by ensuring the inside wall
plate is adequately sealed to the inside vapor bar-
rier.
• Prevent rain water and moisture from entering the
walls by sealing the joints between the outer vent
tube and the inner and outer wall plates.
We recommend the use of a high quality
polyurethane sealant.
All horizontal pipe runs must be graded 1/4 inch per
foot upwards in the direction of the exhaust flow. The
final pipe length, when terminating through the wall
may be graded downwards slightly to prevent water
migration.
Materials Overview

20
Venting Co-axial
Typical Co-axial Venting Components
This appliance is supplied with 4x6-5/8” top vent collar.
See “Approved Venting Components” starting on page 53
for a full list of recommended components.
Sidewall Vent Roof Vent
PIPE LENGTH
(IF REQUIRED)
90° ELBOW
PIPE LENGTH
2-PIECE WALL
THIMBLE
HORIZONTAL
TERMINATION
VERTICAL
TERMINATION
STORM
COLLAR
FLASHING
ATTIC
INSULATION
SHIELD
ATTIC
FIRESTOP
CEILING
FIRESTOP
PIPE
LENGTH
PIPE
LENGTH
90° ELBOW
90° ELBOW
Max. 18” if no
vertical rise in vent
90° ELBOW
PIPE LENGTH
2-PIECE WALL
THIMBLE
HORIZONTAL
TERMINATION
Horizontal Vent