Valor LX2 CORNER User manual

©2021, 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
Direct Vent Zero Clearance
Gas Fireplace
natural gas 2200LKN / 2200RKN
propane gas 2200LKP / 2200RKP
CORNER
Installation Manual
LX2
4007769-07
Installer: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.
Installer: Place model/serial number here.

2
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.
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., 2021. 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.

3
Please read this manual BEFORE
installing and operating this
appliance.
This appliance has been professionally installed by:
Dealer Name: ________________________________
Phone:______________________________________
Welcome to Valor®
Fireplace Safety ................................................. 4
Specifications..................................................... 6
Kits & Accessories.............................................. 7
Dimensions & Location..................................... 8
Planning .............................................................. 9
Overview ...............................................................10
Clearances—Combustible Projections .............11
Clearances—Alcove .............................................12
Minimum Vertical Vent—6-5/8” Vent................13
Minimum Vertical Vent—8” Vent.......................14
Framing—Minimal ...............................................15
Framing—Extended.............................................16
Wall Finish .............................................................17
Venting .............................................................. 19
Overview ...............................................................19
Typical Components ............................................20
Venting Chart—4” x 6-5/8”..................................21
Venting Chart—5” x 8” ........................................22
Restrictors.............................................................23
Wall Termination ..................................................24
Roof Termination .................................................25
Preparation ...................................................... 26
Window Sill & Window.........................................26
Standoffs & Adapter ............................................27
Installation ....................................................... 28
Electrical Wiring....................................................28
Gas Supply.............................................................29
Remote Battery & Wall Switch Kit .....................31
WiFi Module (optional) ........................................33
Liners .................................................................... 34
Fuel Beds ...............................................................36
Birch Log Kit 1700BLK................................................36
Long Beach Driftwood 1705DWK ............................39
Decorative Glass Murano 2200DGM ......................42
Decorative Glass Set 2200DGS ................................43
Splitwood Kit 1700SWK ............................................ 44
Rocks & Shale Set 1714RSS.......................................49
Replacing Light Bulbs ..........................................51
Window Re-Installation.......................................52
Remote Control Set-Up ...................................... 54
Check Operation ..................................................56
Barrier Screen & Window Sill .............................57
Wiring Diagram................................................ 58
Approved Venting Components .................... 59
Commonwealth of Massachusetts ............... 61
Appendix A - Lighting Instructions Plate...... 63
Appendix B - Remote Control Operation..... 64
Appendix C - Wall Switch Operation............. 71
Appendix D - HeatShift System ..................... 72
Appendix E - Spare Parts ................................ 88

4
Do not put
furniture or other objects
in this space in front of
WKHȴUHSODFH
36” [0.9 m]
)LUHSODFH
Hearth
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, par-
ticularly the glass windows. Use the barrier screens
provided 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 com-
bustible 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 ex-
cess of 200ºF (93°C) depending on choice of optional
accessories. 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
temperatures in excess of 200ºF (93°C)depending on
elevation of hearth. Be careful of touching these! Tem-
perature 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,
paintings, photos and other combustible objects
sensitive to heat or furniture within 36 inches (0.9m)
around the fireplace.
• 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 ser-
vicing an appliance must be replaced prior to operat-
ing 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.

5
Glass windows
• The glass front assemblies must be in place and
sealed before the unit can be placed into safe opera-
tion.
• 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 as-
semblies. Do not attempt to clean the glass when it is
hot.
Venting
• This unit must be used with a vent system as de-
scribed in this manual. No other vent system or com-
ponents may be used.
• Never obstruct the flow of combustion and ventilation
air. Keep the front of the appliance clear of all obsta-
cles and materials for servicing and proper operation.
• 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.
Fireplace Safety
Intended use
• This appliance is designed and approved as a supple-
mental heater and provides the potential for most
energy 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
service person. More frequent cleaning might be
required due to excessive lint from carpeting, bedding
material, et cetera. It is imperative that control com-
partments, burners, and circulating air passageways
of the appliance be kept clean.
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.
Front outlet
Ceiling outlet
WARNING
HeatShift
Duct Kit:
Do not cover
or place items
in front of or
above outlet(s)!

6
Specifications
Approval & Codes
This appliance is certified to ANSI Z21.88/CSA 2.33
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 KN KP
Gas Natural Propane
Altitude (Ft.)* 0-4,500 feet*
Input Maximum (Btu/h) 36,000 36,000
Input Minimum (Btu/h) 19,000 21,000
Manifold Pressure (in w.c.) 3.7” 9.0”
Minimum Supply Pressure (in w.c.) 5” 11”
Maximum Supply Pressure (in w.c.) 10” 14”
Main Burner Injector Marking DMS#32 DMS#49
Pilot Injector Marking 51 30
Min. Rate By-Pass Screw 220 160
Supply Gas
Heater engines
2200LKN / 2200RKN are
used with natural gas.
Heater engines 2200LKP
/ 2200RKP are 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 on the rear left side of the firebox.
A shut-offvalve (supplied) is required on the supply line
to isolate the unit during service. See Set-up Gas Supply
section for details.
Conversion Kits
The 2200K LX2 is supplied as natural gas or propane
gas and is field convertible between fuels. See
instructions packaged with the conversion kits for
further information.
Electrical
The 2200K is designed to run on battery power and
does not require an electrical power source to operate
as a heater. However, it requires electrical power to
operate the interior lighting or the optional 1270RBK
Remote Blower Kit.
HeatShift®System
The 2200 fireplace MUST be installed with a HeatShift
kit, a convection system that redistributes the warm
air flow away from the fireplace opening to a more
desirable location using natural convection, without use
of a fan.
The warm air flow may be relocated to a position higher
up the wall, out the sidewalls, or even to another room.
The result is much cooler wall temperatures above the
fireplace opening for locating television, artwork, etc.
Refer to “Appendix D - HeatShift System” on page 72
of this manual.
WARNING
Please note that the HeatShift Kit MUST be
installed on this appliance!
X

7
Required Kits Information accurate at the time of printing and subject to change
without notice.
Information accurate at the time of printing and subject to change
without notice.
Optional Accessories
4006797 LX2 Barrier Screen—Front panel
4006888 LX2 Barrier Screen—Side panel
Fuel Beds (choose one)
1700BLK Birch Log Kit
1705DWK Driftwood Set Kit
2200DGM Murano Glass Set
2200DGS Decorative Glass Set
1700SWK Splitwood Kit
1700RSS Rocks & Shale Set
Liners + Liner End Panel (choose one)
2200FBL + 2200FBP Fluted Black Liners + Fluted End Panel
2200RGL + 2200RGP Reflective Glass Liners + Reflective Glass End Panel
2200LML + 2200LMP Limestone Liners + Limestone End Panel
HeatShift®
LDK1 Quad Plenum 48”
LDK3 Double Plenum 14” (2) with Grille
LDK4 Quad Plenum 38”
LDK7 Duct Termination Plates (valance outlet)
LDK9 Quad Plenum 30”
Gas Conversion Kits
2200XPGK Conversion to propane gas
2200XNGK Conversion to natural gas
Other Accessories
LDK2 48” Finishing Frame for LDK1
LDK5 38” Finishing Frame for LDK4
LDK6 5” dia. Aluminum 2-ply Flex Kit—2 x 10’ lengths, may be cut to required length
LDK10 30” Finishing Frame for LDK9
2200SFK Steel Framing Kit
1270RBK Remote Blower Kit (with LDK1 or LDK4 ONLY)
Hearth Gate Hearth gates such as Cardinal’s VersaGate are available at retail stores carrying
safety products for children.
Kits & Accessories

8
G
as Line
S
tub at rear le
f
t side o
n
LJ and RJ
C
orner appliances -
see
S
et-up
G
as
S
uppl
y
G
as Lin
e
e
S
tub a
t
t
r
ea
r l
eft
t
s
i
de
on
n
L
J
and R
J
J
C
orne
r
r
appliance
s
s
-
see
S
et-u
p
p
G
as
S
uppl
y
y
G
as Line Stub
&
E
lectrical Inlet Poin
t
a
t rear, on left side
f
or bot
h
LJ and RJ
c
orner a
pp
liances
4
”
[102 mm]
to
f
lan
g
e
d
openin
g
2-11
/
/
1
6”
[68
m
m
m]
to
f
lan
g
g
e
d
ope
n
n
in
g
H
eat
S
hi
f
t
5”
dia.
outlets
(
4
)
5”
x
8”
vent collar convertible
to 4
”
x 6-58
”
with supplied adapter
S
tand-o
ff
S
tand-o
ff
1
/
2
”
1
3 mm]
[1
n
ishin
g
f
i
n
f
lan
g
es
f
Temporary
valve
access
Tem
por
ary
va
lve
ac
ces
s
durin
g
installation
f
or both
LJ and RJ corner appliances
C
enter
of
v
e
n
t
17”
17
mm
]
]
[
43
2
2
5
-1
/
4
”
[
133 mm]
11-1/4”
-1
mm
]
]
[
28
5
5
11”
11
mm
]
]
[
27
9
9
20
”
[508 mm]
18
”
[457 mm]
11-1
/
2
”
[
292 mm]
8
-1
/
2
”
[
216 mm]
2
”
[
51 mm]
20
”
[508 mm]
18
”
[457 mm
]
11-1
/
2” [292 mm]
6
-1
/
2” [165 mm]
11
”
[279 mm
]
7
”
[178 mm]
44-1/2” [1130 mm] 33-1
/
4” [845 mm]
5
2
”
[1321 mm
]
5
4
”
[1372 mm
]
5
2
”
[1321 mm
]
Window 45-1
/
2” [1156 mm]
C
enter o
f
ven
t
S
tand-
o
off
S
tand-o
ff
G
as Line
S
tub at rear le
f
t side o
n
LJ and RJ
C
orner appliances
-
see
S
et-up
G
as
S
uppl
y
E
l
ec
tri
ca
l Inl
e
t P
o
int
a
t r
ea
r l
ef
t
s
i
de
on LJ and RJ
C
orner appliances
-
see
P
repare Appliance
f
or Wiring
El
ec
tri
ca
l Inl
e
t P
o
int
a
t r
ea
r l
ef
t
s
i
de
on
LJ and RJ
C
orner appliances - see
P
repare Appliance
f
or Wiring
Top View
Dimensions & Location
Inside Corner Outside Corner Corner
Dimensions—Corner Right Appliance Shown
Location—Corner Right Appliance Shown
Front ViewLeft Side View Right Side View

9
Caution
Only qualified licensed or trained personnel
should install this appliance.
Installer—READ THIS FIRST
1. YOU NEED TO KNOW FROM THE HOMEOWNER:
• Height of appliance;
• HeatShift components;
• Thickness and type of wall finish around
appliance;
• Accessories used;
• Venting configuration - 4 x 6-5/8 or 5 x 8
2. Unpack the appliance and recycle the packaging
EXCEPT THE CARTON PROTECTING THE BARRIER
SCREEN—KEEP IT!
3. Remove front window and all items inside firebox.
4. Check that you have everything, using Pack Con-
tent sheet. Also, check that you have:
• fuel bed (packed separately)
• liners (packed separately)
• Remote Battery & Wall Switch Kit RBSWK
• HeatShift Kit (mandatory)
• Gas conversion kit if necessary
• Venting accessories
• Electrical accessories
5. Carefully read the Installer’s Checklist included with
the fireplace for the installation sequence.
Please note that the following steps must be done
BEFORE the appliance is placed in its final position in
the cavity since the connections are done from the
back of the appliance:
• electrical connections
• gas connections
• gas conversion (if needed)
• wiring of the Remote Battery & Wall Switck Kit
RBWSK
Planning
WARNING
Please note that the HeatShift Kit MUST be
installed on this appliance!

10
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, it
may reach temperatures in excess of
175°F depending on choice of materials. Do
not touch! Finish the walls using materials
suitable for these temperatures.
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
2200K heater
Framing—See Framing
Considerations
1/2” thick non-combustible
cement board required above
and on both sides of fireplace
opening–NOT supplied
1/2” thick non-combustible
cement board required above
and on both sides of fireplace
opening–NOT supplied
Wall finish below opening
Combustible material up to
1-1/4” thick allowed below
opening. Combustible
projections must otherwise be
kept min. 4” below opening.
HeatShift front outlet
HeatShift sides outlet
Remote
Control
Handset
Wall Holder
Wall Finish above o
p
eni
n
n
g
Combustible wall
fi
nish
up
t
t
o
3
/4” thick allowed above o
p
eni
n
ng
overto
p
o
f
1/2” cement boar
d
d
.
Combustible
pro
jec
tions mu
s
s
t
oth
erw
ise
co
nfo
rm to
all
owa
b
le
m
antel
p
ro
j
ectio
n
n
s
—se
e p
p
p
p
age
g
g
g
11.
Remote Battery
and Wall Switch Kit
(required) (35-foot wire
length) (supplied)
Combustible Material Allowed Beneath Fireplace.
When the appliance is installed directly on carpeting,
tile or other combustible material other than wood
flooring, the appliance shall be installed on a metal
or wood panel extending the full width and recessed
depth of the appliance.
Vent collar supplied as 5 x 8” outlet, field convertible to 4 x 6-5/8”
outlet (adapter supplied). Note - Vertical rise required in vent system
when adapting to 4 x 6-5/8” venting
HeatShift Plenum (front or sides) or Duct
Termination Plates (top) mandatory! HeatShift
system supplied separately—see”Appendix D -
HeatShift System” on page 72
HeatShift ducts (4)
Planning Overview

11
Non-combustible material
44-1/2” (1130 mm)
45° 45°
Min. 9” (229 mm);
beyond, can be combustible
10” (254 mm) min.
sidewall clearance
4”
(102 mm)
Combustible projections allowed in this area provided area is separated
from the main cavity by non-combustible wall finish. Otherwise everything
below stand-off height and within cavity must be non-combustible.
Framing/Finishing of projections/
Extensions around fireplace opening
must be non-combustible material
Wood framing with 1/2” (13 mm) clearance allowed at
corners only. Otherwise use steel framing if against appliance.
Non-combustible wall finish
here separating cavity from
combustible projections
Fireplace
opening
1/2” (13 mm) clearance to appliance
Wood stud allowed
at corners only
Combustible wall finish
allowed if framing
out to flanged opening
Combustible finishing materials up to 1-1/4” (32 mm)
thickness allowed below opening height.
Combustible projections greater than 1-1/4” (32 mm)
must otherwise be kept min. 4” (102 mm) below opening.
2” (51 mm) clearance to combustible
2” (51 mm)
clearance to
combustible
2” (51 mm)
clearance to
combustible
2” (51 mm)
clearance to
combustible
Non-combustible
material only
against appliance
Non-combustible
material only
against appliance
Non-combustible wall finish
here separating cavity from
combustible projections
Projecting surfaces
within 4” (102 mm)
of opening must be
non-combustible
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
Planning Clearances—Combustible Projections

12
Min. 44-1/2” (1130 mm) to underside of combustible cavity
Min. 1”
(25.4 mm)
clearance to
combustibles
around
vertical
vent pipe
Approximately
6-1/2” (165 mm) (if using 8” vent)
7-3/16” (183 mm) (if using 6-5/8” vent)
from back surface of wall nish to
front surface of appliance case w/no
vent oset
11-1/2”
(292 mm)
17”
(432 mm)
11”
(279 mm)
Min. 16-1/2”
(419 mm)
Fireplace
Opening
1/2” thick
non-combustible
Cement Board
No rise: 5” x 8” pipes only
Planning
Alcove above opening
Clearances—Alcove

13
*This is the minimum vent height when using 6-5/8 inch venting. If calculating the vent height using additional
vent lengths, subtract approximately 1-1/2 inch for each pipe joint. For example, an additional 12-inch pipe
section will add approximately 10-1/2 inches overall to this dimension. Alternatively, substituting a 24-inch pipe
length for the min. 12-inch section will add 12 inches to this dimension as there is no additional pipe joint.
5-1/4”
(133 mm)
Max. 12“ (305 mm)
length at this height
Min. 12” (305 mm)
pipe section
5” x 8” to 6-5/8” x 4” adapter
(supplied)
6-5/8” x 4” pipes
Required min.
clearance to
combustibles
8-1/2”
(216 mm)
2”
(51 mm)
* Min. 56-3/8” (1432 mm) when using 12” pipe section
11-1/2”
(292 mm)
17”
(432 mm)
11”
(279 mm)
Planning Minimum Vertical Vent—6-5/8” Vent

14
*This is the minimum vent height when using 8-inch venting. If calculating the vent height using additional vent
lengths, subtract approximately 1-1/2 inch for each pipe joint. For example, an additional 12-inch pipe section
will add approximately 10-1/2 inches overall to this dimension.
5-1/4”
(133 mm)
Max. 24 “ (610 mm)
length at this height
5” x 8” elbow
directly on
appliance
Required min.
clearance to
combustibles
8-1/2”
(216 mm)
2”
(51 mm)
* Min. 41-1/2” (1054 mm)
11-1/2”
(292 mm)
17”
(432 mm)
11”
(279 mm)
5” x 8” pipes
Planning Minimum Vertical Vent—8” Vent

15
HeatShift plenum or duct plates framing
required (top, front or sides); see instructions
packed with HeatShift kit.
Combustible framing material
except if using HeatShift front
outlet plenums LDK1 or LDK4:
in this case steel stud required
under outlet opening - see
instructions packed with
HeatShift kit
DO NOT use screws
in this zone!
Combustible wall finish
54” (1372 mm) max.
Non-combustible wall finish zone
Max. 1-1/4” (32 mm)
thickness combustible
wall finish allowed
20” (508 mm) min.
Combustible
framing material
Zero
clearance
standoffs
44-1/2” (1130 mm) min.
11-1/4”
(285 mm)
5-1/4”
(133 mm)
11”
(279 mm)
1/2” (13 mm) non-combustible
cement board required.
(May be covered with max. 3/4”
(19 mm) combustible finish).
Combustible projections must
otherwise conform to allowable
mantel projections - see
Clearances to Combustible
Projections section in this manual.
17”
(432 mm)
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
Framing—Minimal
Planning

16
HeatShift plenum or duct plates framing
required (top, front or sides); see instructions
packed with HeatShift kit.
DO NOT use screws
in this zone!
Combustible material
allowed on rear wall if
framed forward up to
flanged opening.
Combustible construction
with plywood base below
appliance is okay.
Combustible
material
allowed on
front wall
Combustible
material
allowed on
front wall
Non-combustible
material on
front wall
Horizontal surfaces (hearth
& overhang) within this zone
MUST be constructed of
non-combustible material if
within 9” (229 mm) of
appliance perimeter.
Steel framing. Ensure
suitably braced to support
weight of wall. Ensure
weight of wall above is
NOT carried by appliance.
17”
(432 mm)
between
finished
materials
16-1/2”
(419 mm)
WARNING
Ensure weight of wall above is
NOT carried by the appliance.
Framing—Extended
Planning

17
Applies to both LJ and RJ corner
appliances
Plan 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 LX2 fireplace requires a 1/2” (13mm) thick non-
combustible cement board to be used as a wall surface
immediately above the unit opening in the front and
above and behind the opening on each side.
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
perimeter of the cement board.
Non-combustible finishing over cement board
Additional non-combustible material such as tile, etc.,
may be applied over top of the cement board or you
may choose to leave it finished clean with no tile.
Planning Wall Finish

18
Cracking wall finishes
The HeatShift system 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 be
controlled. Be aware that temperatures on the non-
combustible wall surface above the appliance can
exceed 175°F.
Below are some tips on how to best avoid any cracking:
• Allow materials to dry thoroughly before finishing
the wall. Cement board has the ability to absorb up
to 30 percent 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 al-
low 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 opening and instead provide a joint that
intersects the corner.
Planning Wall Finish
Cracks
Provide joints
either here or
here

19
10” (254 mm)
10” (254 mm)
Align the vent
center to the
center of the
frame
Vent Material
This unit is approved for installation using
5 x 8 inches co-axial direct vent pipe and accessories as
listed in the “Approved Venting Components” on page
59 of this manual. Follow the installation instructions
supplied with the individual venting accessories.
This unit may also be converted to 4 x 6-5/8 inches co-
axial direct vent pipe and accessories using the adapter
supplied with the appliance—see list in the “Approved
Venting Components” on page 59 of this manual.
Vent Sealing
Seal all outer coaxial pipe and elbow joints, including
sectioned elbow joints, using high quality, high tem-
perature 2 inch wide self-adhesive aluminum foil tape
(Nashua-322-2 brand or similar). Wrap the tape com-
pletely 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.
Framing Vent in Combustible Walls & Ceilings
(6-5/8” and 8” pipes)
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.
Note that some vent manufacturers’ wall thimble
dimensions may require larger framed openings—
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 pen-
etrating into the wall structure by ensuring the
inside wall plate is adequately sealed to the
inside vapor barrier.
• Prevent rain water and moisture from enter-
ing 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 polyure-
thane sealant.
Tape all joints
(including all
elbow joints)
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.
Venting Overview

20
HORIZONTAL
TERMINATION
2-PIECE
WALL THIMBLE
PIPE LENGTH
HORIZONTAL
TERMINATION
2-PIECE
WALL THIMBLE
PIPE
LENGTH
MIN. 12” VERTICAL
PIPE LENGTH
4 x 6-5/8”VENT
ADAPTER (SUPPLIED)
4 x 6-5/8”VENT
ADAPTER (SUPPLIED)
5 x 8”VENT OUTLET
PIPE
LENGTH
PIPE
LENGTH
CEILING
FIRESTOP
ATTIC
FIRESTOP
ATTIC
INSULATION
SHIELD
FLASHING
STORM
COLLAR
VERTICAL
TERMINATION
90˚ ELBOW
90˚ ELBOW 90˚ ELBOW
90˚ ELBOW
Venting
Thru Wall Thru Roof
Typical Co-axial Venting Components
Appliance provided with 5 x 8” vent collar and
4 x 6-5/8” vent adapter.
Thru Wall, no rise
5” x 8” ONLY
Typical Components