Montigo L38DF series Instruction Manual

For Your Safety:
Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance.
Safety Notice:
Glass doors on gas fireplaces are extremely hot while the fireplace is on and remain
hot even after the fireplace has been turned off. Safety screens are available and
can reduce the risks of severe burns.
®
C US
www.montigo.com
XG0180 Canadian Heating Products Inc. Langley, BC V4W 4A Montigo Del Ray Corp. Ferndale, WA 98248 081009
L38DF Indoor
Warning:
Improper installation,adjustment,alteration,serviceor maintenancecan cause
injury or property damage. Refer to this manual. For assistance or additional
information consult a qualied installer, service agency or the gas supplier.
Warning:
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.
• Immediately call your gas
supplier from a neighbor's
phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas
supplier, call the re department.
Installation Operation & Maintenance Manual
Check local codes and read all instructions prior to installation.
L38DF Gas Fireplace Series
f i r e f e a t u r e
L38DF Indoor Shown
• Installer: Leave this manual
with the appliance.
• Consumer: Leave this
manual for future reference.

Page 2
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Warning:
Read this manual before installing, operating or troubleshooting this
appliance. Please retain this owner's manual for future reference.
Congratulations
Congratulations on selecting a FireFeature gas replace, an ela-
gent and well designed gas replace built to your specications.
The Firefeature gas replace you have selected is designed to
provide the utmost in safety, reliability, and engineering stand-
ards.
As the owner of this new replace, you'll want to read and care-
fully follow all the instructions contained in this Installation,
Operations and Maintenance manual. Pay special attention to all
cautions, warnings, and Important warnings.
This owner's manual should be retained for future reference. We
suggest that you keep it with all your other important documents
and product manuals.
The information contained in this owner's manual, unless noted
otherwise, applies to all models, and gas control systems.
Your new FireFeature gas replace will give you years of
durable, reliable use. Welcome to the FireFeature family of gas
replace products.
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
•Important: Used to address practices not related to personal injury.
Congratulations
Safety Alert Key
Introduction............................................................................... 3
Installation
Installing and Framing the Fireplace.............................. 4
Installing the Gasline...................................................... 5
Vent Installation.........................................................5 - 6
Installation Requirements .................................. 5
Installing the Remote Switch ............................. 6
Vent Terminations .............................................. 6
  InstallingtheNailingange................................ 7
Top Vent Runs......................................................... 8 - 11
Side Vent Runs ....................................................... 8 - 11
Multi-elbow Installations............................................... 12
Installing thePower Vent............................................... 13
 Finishingaroundthereplace
Fireplace Facing .............................................. 13
Mantels and Surrounds ................................... 14
Table Of Contents
Wiring ..................................................................14 - 15
Wiring for the Optional Fan Kit......................... 15
Removing and Installing the Door ..................................... 15 - 16
Operation .........................................................................17 - 20
Maintenance ....................................................................20 - 22
Troubleshooting.....................................................21 - 22
Spare Parts .................................................................. 22
Warranty ................................................................................. 23
Appendix
A. Termination Locations.............................................. 24
B State of Massachusetts / Amendment ..................... 25
Notes ..................................................................................... 26

Page 3
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Introduction
Thank You for choosing a Montigo Gas Fireplace.
About this Fireplace:
The L38-DF isareplacewithalinear-styleburner.Thisreplacecanbe
converted to both a Top Vent or Rear Vent application, and is currently
available in the models below.
The L38DF is rated for Natural Gas at 26,000 BTU/H (7.62 Kilowatts)
Input or Propane at 26,000 BTU/H (7.62 Kilowatts) Input.
► L38DF; Top or Rear Vent, Millivolt Pilot.
► L38DF-I; Top or Rear Vent, Intermittent Pilot (HSI).
► L38DF-A; Top and Rear Vent, American Flame Electronic Ignition
How to use this manual:
This manual covers installation, operation and maintenance. Lighting,
operation and care of this replace can be easily performed by the
homeowner. However, all installation and service work should be
performedbyaqualiedorlicensedinstaller,plumber,orgastterwho
isqualiedorlicensedbythestate,province,region,orgoverningbody
in which the appliance is being installed.
This manual covers all models and unless otherwise specied, the
designation L38DFreferstoallmodels.Sectionswhicharespecictoa
particular model are marked with a symbol, plus the appropriate
model number.
Warranty and Installation Information:
The Montigo warranty will be voided by, and Montigo disclaims any
responsibility for, the following actions:
►Modicationofthereplaceand/orcomponentsincludingDirect-Ventassembly
or glass doors.
►Useofanycomponentpartnotmanufacturedorapprovedby Montigoin
combinationwiththisMontigoreplacesystem.
►Installationotherthanasinstructedinthismanual.
Consult your local Gas Inspection Branch on installation requirements
forfactory-builtgasreplaces.Installation&repairsshouldbedoneby
aqualiedcontractor.
Installations in Canada must conform to the current CAN/CGA B-
149.1 and .2 Gas Installation Code and local regulations. If the optional
air-circulating fan kit is installed, it must be electrically grounded in
accordance with CSA C22.1 Canadian Electrical Code Part 1 and/or
Local Codes.
Installations in the USA must conform to local codes, or in the absence
of local codes to the National Fuel Gas Code, ANSI Z223.1-1988. If the
optional air-circulating fan is installed, it must be grounded in accordance
with local codes or, in the absence of local codes, with the National
Electrical Code, ANSI/NFPA 70-1987. See Appendix B for installation
within the State of Massachusetts.
CAUTION!
Due to its high operating temperatures, the appliance
should be located out of traffic & away from furniture and
draperies.
Children and adults should be alerted to the hazards
of the high surface temperature, which could cause
burns or clothing ignition.
Young children should be carefully supervised when
they are in the same room as the appliance.
Clothing or other flammable materials should not be
placed on or near the appliance.
WARNING!
When this appliance is installed directly on carpeting, tile or any
combustiblematerialotherthanwoodooring,itmustbeinstalled
on a metal or wood panel extending the full width and depth of
the appliance.

Page 4
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Installing The Fireplace Shell
Thereplacemaybeinstalledinanylocationthatmaintainsproperclear-
ances to air conditioning ducts, electrical wiring and plumbing. Safety,
aswellasefciencyofoperation,mustbeconsideredwhenselecting
thereplacelocation.Trytoselectalocationthatdoesnotinterfere
withroomtrafc,hasadequate ventilation,andoffersanaccessible
pathway for Direct Vent installation. Refer to page 4 - Vent Installation
for more information.
Thereplacedimensionsareshownbelow:
When installing a shelf over the top of the replaces, the following
guidelines must be adhered to: For Rear Vent applications the minimum
clearancefromthetopofthereplacetocombustibleshelfframingis9".
ForTopVentapplications,theminimumclearanceis171/2".(Minimum
2" clearance must still be maintained around the vent pipes.)
Figure 4. Framing for shelves over the replace, (Combustible materials).
Top Vent
Top View
Front View Side View
Figure 1. Fireplace dimensions.
Rear Vent
Clearances:
The clearances apply to all dimensions except the framed opening,
where the clearnace to combustibles is 0". The L38DF clearances to
combustible materials are:
L38DF
Top - Rear Vent * 9"
Top - Top Vent 17 1/ 2
Back 1"
Sides 1"
Floor 0"
Mantle** 4"
* Clearance from the top of the replace to a combustible ceiling
within the replace enclosure.
** Refer to graph and requirements on Page 11.
Unprotectedcombustiblewallswhichareperpendiculartothereplace
opening, must not project beyond the shaded area shown in Figure
24.
For protection against freezing temperatures, it is recommended that
outer walls of the chase be insulated with a vapor barrier. This will reduce
thepossibilityofacold-airconvectioncurrentonthereplace.
37 3/4”
11 1/2”
35 3/4”
5” 8”
29”
5”
8”
21 3/4””
18 1/4”
WARNING!
When this appliance is installed directly on carpeting, tile or any
combustiblematerialotherthanwoodooring,itmustbeinstalled
on a metal or wood panel extending the full width and depth of
the appliance.
Figure 3. Minimum Corner framing
dimensions, using a 45° elbow.
Figure 2. Framing dimensions.
* When sheetrock is
not used behind the
fireplace, framing
depth may be reduced
by 5/8"
Framing
20 1/8”
37 3/4”
35 1/4”
75
0" clearance
to corners only
37 3/4
54 1/4”
Figure 3a. Top Vent
or Rear Vent (with Non-
Combustible materials).
35 1/4 40 1/2
9
29
17 1/2
Framing / Header,
supplied shield
shelf
21 3/4 35 1/4
5
1
/
2
MEL Short
90 elbow
shelf
Framing / Header,
supplied shield
5 1/2”
5 1/4”
18 3/4
”
29 1/2”
1 1/4”
1”
35 1/4” 1 1/4”1 1/4”
37 3/4”
MIN
84”
to
96”
Header
6”
3”
Rear
Vent
MIN
1”
Cieling
Floor
Alcove
area over
Fireplace
T
op
Vent
Non-Combustible
Materials Only

Page 5
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
QUse only certied Montigo vent components. (Use of other parts will void the
Montigo warranty, and may impede the operation of the fireplace.)
QAll joints must be secured with a minimum of two screws per joint
QVent terminations must not be recessed in walls or siding
QHorizontalrunsmustbesupportedbyaminimumoftwosupportsperhorizontal
run. A minimum of one screw on each side of support is also required
QFlex vent sections may be stretched up to 50% of their total length (eg. a
24" section may be stretched to 36")
QMaximum horizontal run with no vertical rise is 6 feet.
QFlex vent sections over 6 feet must fall within the limits set by the venting
graph and must have a minimum vertical rise of 3 inches per foot of flex.
QSolid vent sections may be cut less than half way from the female end
QVenting components can be used in any combination of solid/rigid pipe or
flex pipe and in any orientation (Male connectors can face in any direction)
Vent Terminations
Selecting A Termination Location
Choosing your vent termination location will help to determine whether
youneedtouseatopventorrearventreplace.Figure6a,below,shows
typicalreplacelocationsandtheventingoptionstheyprovide.
For a more detailed diagram of allowed termination locations, see Ap-
pendix A.
Figure 6a. Fireplace locations and vent terminations.
Installing The Gas Line
ThegaslinemustbeinstalledbeforenishingtheL38DFFireplace.
Natural Gasrequiresaminimuminletgassupplypressureof5.5"W.C.
&amanifoldpressureof3.5"W.C.Propane Gas requires a minimum
inletgassupplypressureof11"W.C.&amanifoldpressureof10"W.C.
Provisionmustalsobemadefora1/8"N.P.T.pluggedtappingandbe
accessible for test gauge connection immediately upstream of the gas
supplycontrolstotheappliance.Thereplacegasconnectionandthe
main operating gas valve is located behind the removable trim at the
bottom of the unit and need only be attached to the gas line with an
approvedtting,asrequiredbytheapplicable installation codes.
To access the replace gas connection the main burner must be
removed as shown below in gure 5a.
•Onlyusegasshut-offvalvesapprovedforusebythestate,province,
region, or governing body, in which the appliance is being installed, or
as required by the applicable installation codes.
•Flexiblegasconnectorsmustnotexceed3feetinlength,unlessitis
allowable within applicable installation codes.
Note: After gas line is connected, each appliance connection,
valve and valve train must be checked while under normal
operating pressure with either a liquid solution, or leak
detection device, to locate any source of leak. Tighten any
areas where bubbling appears or leak is detected until
bubbling stops completely or leak is no longer detected.
DO NOT use a flame of any kind to test for leaks.
Figure 5a. Gas line access.
The appliance and its individual shut-off valve must be disconnected
from the gas supply piping system during any pressure testing of that
system at test pressures in excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply piping system by
closing its individual manual shut-off valve during any pressure testing
of the gas supply piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).
Vent Installation
This section covers the installation of direct venting and terminations.
Installation Requirements
QL38DF fireplace is certified for use with Montigo Standard Series (5" / 8")
venting components.
QMinimum clearance to combustible construction around the vent pipe
is 1" on all sides, except on horizontal venting where the top of the pipe
must have a clearance of at least 2".
0.875 dia.
10
3 1/2
7
Cautions:
QVent terminations can be very hot. If the termination is less
than7feetaboveapublicwalkway,itshouldbettedwith
acertiedMontigoHeatGuard.(Partno.PTKOG).
QDonotobstruct, orattempttoconceal,theventtermination.
Theseactionswillaffecttheoperationofthereplace,
and may be hazardous.
QIn heavy snow areas, take extra care to prevent snow
buildup from obstructing the vent termination.
QUse Montigo VSS Vinyl Heat Shield when using on
applications with vinyl siding to guard against possible
damage.

Page 6
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
3.5”
Installation
Installing Terminations with Built-In Frames
Installing Terminations with MSR Frames
12
12
1. Frametheterminationopeningto12"x12".
2. Fasten the termination to the studs using a minimum of 4 screws.
11
11
1. Frametheterminationopeningto11"x11".
2. Fasten the termination to the studs using a minimum of 4
screws.
Installing Terminations with MOSR Frames
1212
12
MOSR
1. Frametheterminationopeningto12"x12".
2. Fasten the MOSR frame to the interior side of the studs using a
minimum of 4 screws.
3. Insert the termination into the MOSR frame as shown here, and
attach by screwing through the four pilot holes in the termination.
MSR
PTO-3F (5"/8")
PTO-3F (5"/8")
PTO-3F (5"/8")
PTKOG (5"/8")
Installing Heat Guards over Terminations
Installing The Remote Switch
The L38DF's gas valve, located behind the lower trim, may be connected
to a wall switch. The valve generates its own power on a millivolt circuit.
Useonlylowvoltagewire,andDONOT connect anyexternalpowertoit.
Note:Theswitchlocationmustnotexceed30'fromthereplace.
Installing The Standoffs
To avoid elevated mantel temperatures, all L38DF gas
replaces are required to have the supplied standoffs installed.
The replace is supplied with two standoffs. Bend and install these
standoffsontopofthereplaceensuringthattheheightofthestandoff
maintainsa3-1/2"clearance.
Figure 6b. Installing the L38DF standos.
1. Ensure that the two long mounting brackets are facing the bottom
ofthe termination.(See inset).Thiswill provide more heatprotection
at the top of the termination, where temperatures are highest.
2. Attach to the faceplate of the termination using four sheet metal
screws.
3. IfinstallingtheterminationoverVinylsiding, UsetheVSSTermination
shield. Montigo Installation document, XG1301.
Figure 6. Installing the VSS Vinyl Shield.
Figure 5a. Installing a PTO termination.
Figure 5b. Installing a PTO termination with the MSR frame.
Figure 5c. Installing a PTO termination with the MOSR frame.
Figure 5d. Installing a PTO termination heat guard.

Page 7
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
5”Inner Flue Collar
8”Outer Flue Collar
Flue Gasket
Flue Cover Plate
Figure 6c. Installing the Nailing Flange Extension.
Installation
Converting to Top Vent/ Rear Vent
L38DF Top Vent
Use the following instructions to convert a L38DF,for Top Vent use:
1. Installthe5"inneruecapontherearueoutletandsecurethe
capinplacewithvescrews,asshowningure7a.
2. Installthe8"outeruecapontherearueoutlet,andsecureit
withvescrews,asshowningure7a.
3. Installtheuegasketmaterialanduecoverplateontherearvent
outlet . Fasten the plate with four screws, as illustrated below.
4. Installthe5"inneruecollarandthe8"outeruecollarinplace
on the top vent outlet using 5 screws, as illustrated below.
Figure 7a. Flue cap installation, Top Vented L38DF replace.
Figure 7b. Flue collar installation, Top Vented L38DF replace.
Figure 8a. Flue cap installation, Rear Vented L38DF replace.
Figure 8b. Flue collar installation, Rear Vented L38DF replace.
L38DF Rear Vent
Use the following instructions to convert an L38DF, for Rear Vent use:
1. Installthe5"inneruecaponthetopueoutletandsecurethe
capinplacewithvescrews,asshowningure8a.
2. Installthe8"outeruecaponthetopueoutlet,andsecureit
withvescrews,asshowningure8a.
3. Installtheuegasketmaterialanduecoverplateonthetop
vent outlet. Fasten the plate with four screws, as illustrated in
gure8b.
4. Installthe5"inneruecollarandthe8"outeruecollarinplace
on the rear vent outlet using 5 screws, as illustrated below.
5”Inner ue CapFl
Fl8”Outer ue Cap
5”Inner Flue Cap
8”Outer Flue Cap
Flue Gasket
Flue Cover Plate
8” Outer Flue Collar
5” Inner Flue Collar
Installing the Nailing
Flange Extension
Oncethereplaceisplacedintotheroughframedopening,andthe
supplied steel lintel is in place, (Part No. L38087) (see Figure 2),
the supplied nailing extension must be placed along the top edge of
thereplaceandsecurelyfastenedinplacetothemetallintel,and
combustiblewoodframing.Note:Thenailingangeextensioncanbe
substituted with a piece of NON-Combustible material of the same
size and thermal characteristics, ie: cement board or equivilent.

Page 8
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Top Vent Venting Runs
For the L38DF Top Vent, there are two types of installations: A)Through-
The-Wall Installations and B) Vertical (Through-The-Roof) Installations.
A) Through-The-Wall Installations
Before you install any venting, you must determine whether the venting
runwillbeacceptable.Unacceptableventingcanaffectthereplace's
combustion.
The Venting Graph
Measuretheverticalheightfromthereplacehearthtothecentreof
theterminationandthehorizontalrunfromthereplaceuecollarto
thewallangeofthetermination.PlotontheVentingGraph(Fig.9a)
with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 108" and the horizontal run to
the wall flange of the vent termination is 180", this would be an accept-
able installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 48" and the horizontal run to
the wall flange of the vent termination is 72", this would be an acceptable
installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 60" and the hori-
zontal run to the wall flange of the vent termination is 144", this would
NOT be an acceptable installation.
Figure 9a. L38DF Top Vent Venting Graph
Available Top Vent Components
The following venting components are available for the L38DF Top Vent:
5" / 8" Venting
A - Termination PTO-3(3"Length)
PTO-3F(3"Length)
B - Stucco Kits MSR (Stucco Frame)
MOSR (Stucco Can)
BSR ( Brick Can)
C - Flex Sections PFL-1(12"Section)
PFL-2(24"Section)
PFL-3(36"Section)
PFL-4(48"Section)
D - Rigid
Sections
PEXT-1(12"m/fSection)
PEXT-2(24"m/fSection)
PEXT-3(36"m/fSection)
PEXT-4(48"m/fSection)
E - Elbows PEL-90MM(m/m90°Elbow)
PEL-90FF(f/f90°Elbow)
PEL-90FM(f/m90°Elbow)
NOTES: All dimension lengths for vertical or horizontal runs are
measured from centre of the vent pipe.
Venting runs must fall within the limits set by the venting
graph(seeFigure9A).
Example 1:
ForourshortestventingcongurationusecomponentsAandE(see
Figure 10).
Figure 10. Typical Top Vent installation. If the 90° elbow is installed
directly on the replace, for height to the center of the
termination see chart on page 3.
Important:
Aninspectionoftheexplosionreliefappersanddoormustbe
madepriortolightingthereplace.Thiswillensurethedoorgas-
keting material will provide an adequate seal during operation.
PEL 90F/F Elbow
RHS101
Termination
Power Vent models, LDVPV47
EDVRSPV58, and EDVWSPV58
to be used within the shaded area of
graph. (See Index of this guide for
applicable Product page).

Page 9
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Horizontal Venting
Figure13. Typical Top Vent installation. The solid sections can be used in
various combinations to obtain the desired vent run. The vent
run must fall within the limits set by the venting graph.
Figure 14. Extended Installation using a combination of solid and ex
venting. Use the vent graph to determine your allowable
run, then select appropriate components.
90° Elbow
PEXT Section
Termination
Example 3:
Rigidsectionsandanelbowusedinconjunctionwith3ft.exsection
(PFL-3)will,whenextendedinavefootchase,allowforamaximum
horizontalrunoftwelveandone-halffeetfromthecentreofthereplace
tooutsidewallandaminimumof7'6"whenretractedinoppositedirection
(see Figure 12 and 13).
"C"exsectionsand"D"rigidsectionsmaybeusedinconjunctionwith
one another to obtain different possible horizontal length installations.
NOTE: Flex section with no vertical rise must not exceed maximum
horizontal length of 3 feet (see Figure 14). Flex runs over 6' feet must
fall within the limits set by the venting graph, and must have a minimum
verticalriseof3"perfootofex.
Figure 11. Corner installation.
Example 2:
. 45° Corner Installation. (Only available using Top Vent)
 AttachaPEL-90(90°elbow)directlyontotheuecollar,andattach
ittothePEL-45(45°elbow).CutthePXT-18tosuitandinsertitinto
thePEL-45.Slidethereplaceintoposition,andthenconnectitto
the exterior termination.
45° or less Corner Installation. (Only available using Top Vent).
 Use a PTO-3 termination and an PFL-1 or PFL-2 (12" or 24"
compressedlength)and aframe,ifappropriate. Flex may be turned to
obtaindesireddegreeofanglerequiredbutmustnotexceed45°.
PEL-45 Elbow
PEL-90 Elbow
PXT-18
Figure 12. Flex installation.
Important: Corner Installation is available
for L38DF Top Vent Units Only.
RHS8
RHS8

Page 10
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
2 MIN
1 MIN. Both sides
Typical
1 MIN
RHS8
Heat Shield
Installation
Figure 15. Retracted Installation using a combination of solid and ex
venting. Use the vent graph to determine your allowable
run, then select appropriate components.
Figure 16. Horizontal ex installation with MIN vertical rise.
This venting configuration meets requirements.
Figure 16a. Vertical venting with 1 oset (1 oset= two 90° bends).
* Minimum 1-1/2" clearance to combustibles
RHS8
RHS8
19”max
41”
min.
5" / 8" Venting
A - Termination PVTK-1
B - Flex Sections PFL-1(12"Section)
PFL-2(24"Section)
PFL-3(36"Section)
PFL-4(48"Section)
C - Rigid Sections PEXT-1(12"m/fSection)
PEXT-2(24"m/fSection)
PEXT-3(36"m/fSection)
PEXT-4(48"m/fSection)
D - Support Ring
&Plate
PSPXT-8
E - Firestop PS-8
F - Roof Flashing PRF-7 (1/12 - 7/12 pt.)
PRF-7 (7/12 - 12/12 pt.)
G - Adaptor / Vent
Reducer
PVA5487(5"/8"to4"/7")
B. Vertical (Through-The-Roof) 5/8 Installations
Vertical rise >12' can be reduced (on applicable models).
Vertical Terminations must be installed:
•minimum 2' (two feet) above the highest point where
vent passes through the roof.
•minimum 6' (six feet) from a mechanical air inlet
•minimum 6' (six feet) from a mechanical air inlet
•minimum 18" (1 1/2 feet) from a parapet wall.
Maximum vent height is:
• 32feetabovereplace.
Note: Flame characteristics will change if the maximum vent height
is used.
A maximum of two offsets (each offset has two 90° bends) may be
made and shall not exceed total length of 25% of the vertical vent
height, when measured center to center of piping.
Example: Typical vent installation.
20' vertical vent
2 - 2' offsets required
Figure 16b. RHS8 Installation. (Install by sliding over vent pipe where
it passes through the combustible contruction.

Page 11
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Figure 17. Vertical venting with 2 osets (1 oset= two 90° bends).
Rear Vent Venting Runs
The L38DF, Rear Vent has three possible installations which do not
require vertical lift, all of these installations require that you install the
RHS101 heat shield.
Heat Shield
The heat shield (RHS101) must be used on all installations straight
through the wall, at the point where the vent pipe connects to the
termination. With the heat shield, proper vent clearances can be
maintained. The heat shield is not included with the replace.
Figure 19. Heat Shield. Install by sliding over the vent pipe where it
passes through combustible construction.
* Minimum 1-1/2" clearance to combustibles
32’ max
1. Straight Installation.
The height from the hearth to the center of the termination is 21
3/4".Forstraightinstallationsusea12"extensionpipe(PXT-12)
with female/female connections. For shorter installations, cut the
PXT-12tothedesiredlength.Refertogure19a.
Ensure that the RHS101 heat shield is installed before attaching
the pipe to the termination.
Note: For Rear Vent models, maximum horizontal run with no
verticalliftmustneverexceed12".
Installation
The following venting components are available
for an L38-DF, in a Rear Vent installation:
5" / 8" Venting
A - Termination PTO-3(3"Length)
PTO-3F(3"Length)
B - Stucco Kits MSR (Stucco Frame)
BSR-4(4"BrickFrame)
BSR-6(6"BrickFrame)
MOSR (Stucco Can)
C - Flex Sections PFL-1(12"Section)
PFL-2(24"Section)
PFL-3(36"Section)
PFL-4(48"Section)
D - Rigid
Sections
PEXT-1(12"m/fSection)
PXT-20(20"section)
PEXT-2(24"m/fSection)
PEXT-3(36"m/fSection)
PEXT-4(48"m/fSection)
E - Elbows PEL-90MM(m/m90°Elbow)
PEL-90FF(f/f90°Elbow)
PEL-90FM(f/m90°Elbow)
PEL-45FM(f/m45°Elbow)
To installthe heat shield,slide one sectionover thevent pipe onthe inside
of the wall opening, with the circular portion inside the wall cavity. Screw
the shield in place over the wall opening. Install the second section on
the outside of the wall opening sliding the circular portion into the wall
opening.RefertoFigure19.
Figure 8c. RHS101 Installation. (Install by sliding over vent pipe where
it passes through the combustible construction.
Framing
Drywall
RHS101 Heat Shield,
Inner Section.
Vent from fireplace
RHS101 Heat Shield,
Outer Section.
Termination

Page 12
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Figure 19a. Extended installation.
B. Multi-Elbow Installations
Formoredifcultinstallationsituations,theL38DFRearVentmaybe
installedwithtwo-90°elbowsandupto15'ofhorizontalrun.Ifusing
this installation option, you must adhere to the following guidelines:
 therst90°elbowmustbeplaceddirectlyontheuecollar
 youmusthaveaminimumverticalliftof50"(measuredfromthe
hearth)
your vent run must fall within the limits set by Figure 22
Before you install any venting, you must determine whether the venting
runwillbeacceptable.Unacceptableventingcanaffectthereplace's
combustion.
The Venting Graph
Measuretheverticalheightfromthereplacehearthtothecentreof
theterminationandthehorizontalrunfromthereplaceuecollarto
thewallangeofthetermination.PlotontheVentingGraph(Fig.22)
with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Example A: (Acceptable Installation)
Iftheverticaldimensionfromthehearthis84"andthehorizontal
runtothewallangeoftheventterminationis36",thiswouldbe
an acceptable installation.
Example B: (Acceptable Installation)
Iftheverticaldimensionfromthehearthis94"andthehorizontal
runtothewallangeoftheventterminationis126",thiswouldbe
an acceptable installation.
Example C: (Unacceptable Installation)
Iftheverticaldimensionfromtheoorofthereplaceis78"and
thehorizontalruntothewallangeoftheventterminationis108",
this would NOT be an acceptable installation.
PXT-12
Figure 22. L38DF Multi-Elbow Venting Graph.
Power Vent models, LDVPV47
EDVRSPV58, and EDVWSPV58
to be used within the shaded area of
graph. (See Index of this guide for
applicable Product page).
Figure 23. Multi-elbow installation.
Multi-elbow installation. For L38DF distance 'H' must be a
minimum of 46".The vent run must comply with gure 22.
NOTES: All dimension lengths for vertical or horizontal runs are
measured from center of the vent pipe.
Venting runs must fall within the limits set by the venting
graph (see Figure 22).

Page 13
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Reduced Vertical Installation
(Available with Linear LDVPV47 Power Vent
ONLY)
It is possible to reduce vertical vent runs from 5"/8" venting to 4"/7"
venting. Reduced vertical venting may only be used when the Linear
(In-line) Power Vent is required. This is commonly due to longer than
normal vent runs, or unusually long horizontal Vent runs.
Installation
Figure 18. Reducing Vertical Vent from 5/8" to 4/7".
Installing The Horizontal &
Vertical Exterior Power Vent
A Power Vent is required where the Termination is located too far
away from the gas fireplace and/or if the vent run is beyond the scope
of this document, or the specications recommend vent augmenta-
tion. There are four 4/7 Power Vent models available. These Power
Vents are required for Superior venting, safe operation & years of
trouble free operation.
The available Montigo Power Vent models are:
LDVPV47 (Linear, Interior In-line Power Vent, document, XG0700).
EDVPV47 (External Power Vent Module, document, XG0750).
EDVRSPV47 (Exterior Vertical Roof mount 4/7 stainless steel Power
Vent system, document, XG1303)
EDVWSPV47 (Exterior Horizontal Wall mount 4/7 stainless steel Power
Vent system, document, XG1302).Figure 24. Combustible mantles and facings.
Horizontal Run (in)
Steel Stud construction
allowable within this area
Top of
fireplace
Non-Combustible
Combustible Facing
Material
Facing Material
Combustible
Construction allowed
in shaded area
WARNING!
We recommend careful consideration be given to the effects of
elevated mantel temperatures which may be in excess of product
design, for example: candles, plastic or pictures. This can cause
melting, deformation, discoloration or premature failure of T.V.
and radio components.
WARNING!
When covering the upper metal portion of the replace, up to
6"(as shown, Fig.24 & Fig.25) with a non-combustible material
Please Note: The decorative facing materials may be subject to
temperaturesinexcessof250°F.Thisshouldbeconsidered
when selecting facing materials.
Fireplace Facing
Whenselectingthenishmaterialforyourreplace,itisimportantto
rememberthefollowing:THE OPENINGMUSTNOTBEOBSTRUCTED
IN ANY WAY - to do so restricts the air supply for the control
compartments and heat exchanger it also prevents access for
servicing controls.
The face of the replace may be painted to match the room decor,
provided you use a heat-resistant paint. Decorative facing must not
extendpastthereplaceopeningatall,becauseitwillinterferewith
the access to retainers for removal of glass door.
Finishing Around the Fireplace
Combustible mantels and mouldings may be safely installed over the
topandonthefrontofthereplaceprovidedthattheydonotproject
beyond shaded area shown in Figure 24.Sidewallclearancesare3".
Combustiblesurroundsmaybeinstalledwith3"clearancetotheside
ofthereplaceasshowninFigure 25.

Page 14
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Figure 25. Combustible surrounds.
Non-Combustible
Facing Material
Header
Drywall/Sheetrock
6”
3”
Painting:
Special care is recommended by the Master Painters and Decorators
Association,whenpaintingthereplacesurrounds,toselectandapply
a quality Alkyd sealer prior to the applying of latex paints. This is to
prevent leaching of water from evaporation and causing a brownish
staining effect to paint over coats.
Wiring
Gas Control and Pilot Wiring
Figure 26. Wiring for the L38DF-I with Honeywell gas control and pilot.
Honeywell (Q3450)
Pilot Assembly
Pilot Electrical
Harness Connector
Honeywell Gas
Control (SV9501M)
Gas Control
Connector
Junction Box
115VAC
24VAC
40 VA
Transformer
Black
White
Green
Gnd Screw
Wall Switch
Fan Plug
Receptacle
Mantels & Surrounds
NOTE: National Canadian Gas Association mantel test requirements
areforrehazardpreventiontocombustiblematerials.
New technology, to meet consumer and government demands for the
wise use of energy, has prompted us to manufacture many models of
replaceswhicharehot,fuelandenergyefcient.
Please be aware; temperatures over the mantel will rise above normal
roomtemperatureandwallsabovereplacemaybehottotouch.
L38DF
L38DF-I

Page 15
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Installation
Wiring for the optional Fan Kit
All L38DFreplacesmaybeequippedwithoptionalfankitsforcirculating
heat into the living space.
Installations in Canada which employ the fans must be electrically
grounded in accordance with CSA C22.1 Canadian Electrical Code
Part 1 and/or Local Codes.
Installations in the USA which employ the fans must be grounded in
accordance with local codes or, in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70-1987.
For more information see the Fan Kit Installation Guide included with
the fan kit.
NOTE: If any of the original wire supplied with the appliance is replaced, it
must be replaced with the same type, or its equivalent.
Figure 27a. Wiring schematic for optional fans.
G
L2-WH
L1-BLK
p g
Quick Connect
lu to motor
5/1/60 Supply
G L1 L2
L38DF-I Removing and Installing
the Door
Removing the door:
The doors are removed in a few simple steps. Follow the Steps shown to
remove the Horizontal access panel, unlatch the door buckles, remove
the door, then replace in reverse order.
Figure 28a. Loccate the door buckles. (Both Sides Typical)
Door Latch Hook
Door Latch Slot
Hand-hold
Release the Door Buckles
Figure 28. Removing and installing the the Horizontal Acess Panel
Locate the Door Buckles:
Figure 28b. Door buckle Tool
Step 1:
Remove the Horizontal cover
byplacingngersinbothnger
holes, then pushng away from
you and lifting out. Place it
aside during maintenance or
cleaning.
Install in reverse order.
Installed Gas
Valve Cover
Finger Holes
Step 2:
Step 3:
Remove the Horizontal Access Panel:
1
Step 4:
Firmly grasp hand-hold
end of tool and place the
machined end in the slot
under door frame. (as
shown)
Figure 28c.

Page 16
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Notes
Installation
Figure 29. Installation of glass beads .
Installing the Glass Beads and
Optional River Rocks
Beads
The L38DF is supplied with Designer Glass beads. Remove the Door
and trim as shown in the previous Instruction. Follow these instruc-
tions to ensure all parts are removed or replaced as required.
Once the Trim and glass doors are removed place the marbles ran-
domlyacrossthepansurroundingtheburnersasshowninFigure29.
NOTE: DO NOT Cover burners with beads or the optional rocks, as
showninFigure29.
Note: Ensure the rocks or beads do not cover the Burners
Optional River Rocks
The L38DF has the option of installing the optional cultured rocks
which mimic real stone. They are attrative yet designed to withstand a
hightemperatureenvironmentsuchasinsideagasreplace.These
may be spaced at random, or in a visual pattern of your preference.
See the Montigo web site for photographs and ideas.
www.montigo.com
Note: Ensure the rocks or beads do not cover the Burners.
L42DF-ST
WARNING!
Do not attempt to clean glass when hot.
Do not clean glass with abrasive materials as any glass etching
may cause premature glass failure.
Donotoperatethisreplacewithouttheglassdoor,orwitha
broken glass door.
To install the door, hook the top edge of the door frame into place.
Lower the door into position and follow the previous steps shown in
reverse order.
Installing the Door:
2
Step 5:
Ensurethetoolisrmly
in the lower end of the
slot, (as shown), Then pull
toward you (Caution: hold
the tool securely).
3
Step 6:
Pull hard if necessary to
release the spring ten-
sion. (Caution: The latch
springs back with force,
hold the tool securely).
4
Step 7:
Remove the tool from
the latch slot. Ensure the
latches are hanging freely,
the hook end is released
from the bottom of the door.
(Repeat all 4-steps for the
remaining latches).
Figure 28d.
Figure 28e.
Figure 28f.
Step 8:
Grasp the Door on either side, usually midway and lift upward, lift
thedoorcarefullyupandawayfromthefrontofthereplace.See
gures 28g. Place the Door aside in a safe place while maintenance
and / or cleaning is being performed.
Figure 28g. Removing and installing the glass doors. (Both Sides
Typical)
Removing the Door:
L38DF

Page 17
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Operation - Model L38DF
L38DF
WARNING: If you do not follow these instructions exactly, a re or
explosion may result causing property damage, person-
QIf you cannot reach your gas supplier, call the Fire
Department.
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by hand,
don't try to repair it, call a qualified service technician. Force
or attempt to repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system, and
any gas control which has been under water.
A. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
What To Do If You Smell Gas:
QDo not try to light any appliance.
QDo not touch any electrical switch; do not use any phone
in your building.
QImmediately call your gas supplier from a neighbour's
phone. Follow the gas supplier's instructions.
To Turn Off Gas To Appliance:
3. Push in gas control knob slightly and turn clockwise to
"Off". Do not force.
4. Replace the lower Horizontal access panel.
1. Turn off remote switch.
2. Lift out the lower Horizontal access panel.
1. STOP! Read the safety information above on this label.
2. Lift out the lower Horizontal access panel.
3. Push in gas control knob and turn clockwise to "OFF."
4. Wait five (5) minutes to clear out any gas. Smell for gas,
including near the floor. If you then smell gas, STOP! Follow
"B" in the safety information above on this label. If you don't
smell gas, go to the next step.
5. Locate pilot burner (See illustration at right.) and follow steps
below.
6. Turn knob on gas control counter clockwise to "PILOT."
7. Push in gas control knob completely and hold. Light with Piezo
Igniter button. Continue to hold the control knob in for about
(1) minute after the pilot is lit. Release the knob and it will pop
back up. Pilot should remain lit. If it goes out repeat steps 3
through 8.
QIf knob does not pop up when released. Stop and
immediately call your service technician or gas supplier.
QIf the pilot will not stay lit after several tries, turn the gas
control knob to "OFF" and call your service technician
or gas supplier.
8. Push in gas control knob and turn counter-clockwise to
"ON."
9. Replacethe lower Horizontal access
panel.
10. Turn on remote switch to ignite fire.
Lighting Instructions:
with Continuous Pilot
For Your Safety - READ BEFORE LIGHTING:
NOTE: Gas control knob cannot be turned from
"PILOT"to"OFF"unlessknobispushed
in slightly. Do not force.

Page 18
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
For Your Safety - READ BEFORE LIGHTING:
To Turn Off Gas To Appliance:
Lighting Instructions:
QIf you cannot reach your gas supplier, call the Fire
Department.
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by
hand, don't try to repair it, call a qualified service technician.
Force or attempt to repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system,
and any gas control which has been under water.
A. This appliance is equipped with an ignition system that
lights the pilot burner automatically. Do not attempt to
light the pilot by hand.
B. BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas
is heavier than air and will settle on the floor.
What To Do If You Smell Gas:
QDo not try to light any appliance.
QDo not touch any electrical switch; do not use any
phone in your building.
QImmediately call your gas supplier from a neighbour's
phone. Follow the gas supplier's instructions.
1. Turn off remote switch.
2. Lift out the lower Horizontal access panel.
3. Turn the switch on the gas control to "Off".
4. Replace the lower Horizontal access panel.
1. STOP! Read the safety information above on this label.
2. Lift out the lower Horizontal access panel.
3. Turn switch on the gas control to OFF".
4. Wait 5 minutes to clear out any gas. If you smell gas,
STOP! Follow "B" in the safety information above on this
label. If you don't smell gas, go to the next step.
5. Turn switch on the gas control to "ON". NOTE: This unit is
equipped with an ignition system that lights the pilot burner
automatically. Do not attempt to light the pilot by hand.
6. Turn on wall switch.
7. Replace the lower Horizontal access panel.
8. If the fireplace does not operate, follow the instructions "To
Turn Off Gas To Appliance" and call your service technician
or gas supplier.
with Honeywell Electronic Ignition
Operation - Model L38DF-I
L38DF-I
Gas
Inlet
Gas Control Switch
Shown in "On" Position
WARNING: If you do not follow these instructions exactly, a re or explosion may result
causing property damage, personal injury or loss of life.

Page 19
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
B-Series BF-A
L-Series DF-I Operation - Model L38DF-ST-A L38DF-A
To Turn Off Gas To Appliance:
1. Turn off remote switch.
2. Remove the lower Horizontal access panel.
3. Turntheincominggascontrolvalveto"Off".
4. Replace the lower Horizontal access panel.
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.
Immediately call your gas supplier from a neighbour's
phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the Fire
Department.
A. This appliance is equipped with an ignition system that allows
for both continuous pilot operation as well as an electronic
ignitionthatlightsthepilotburnerautomatically. Donotattempt
to light the pilot by hand.
B. BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
with American Flame Electronic Ignition
ADJ.
AUX Learn
Remote/Off
Continuous
Pilot
Off/On
S I
IPIPOWER
6VAC 200mA
AC ADAPTOR
Wall Switch (SWI)
Brown
Brown
Black
White
Green White
Orange
Pilot
Main
Manual
Hi/Lo
Main Gas InputMain Gas Output
White (Sensor)
Orange (Igniter)
Control
Module
Emergency
Battery
Power
(4 x AA)
Pilot Assembly
Red
Black
Red
Black
Optional
Lighting Instructions:
1. STOP! Read the safety information above on this label.
2. Remove the lower Horizontal access panel.
3. If the switch on the control module is set to "Continuous Pilot
Off" then the pilot will light when the appliance is turned on
by the remote switch. When switched to "Continuous Pilot
On" then the control module will attempt to light the pilot until
it detects that the pilot has been successfully lit.
4. With the control module set to "Continuous Pilot Off" wait 5
minutes to clear out any gas. If you smell gas, STOP! Follow
"B" in the safety information above on this label. If you don't
smell gas, go to the next step.
5. Turn switch on the control module to "Continuous
Pilot On" This will initiate the lighting of the pilot.
NOTE: This unit is equipped with an ignition system that lights
the pilot burner automatically. Do not attempt to light the
pilot by hand.
6. Turn on wall switch.
7. Replace the lower Horizontal access panel.
8. If the fireplace does not operate, follow the instructions "To
Turn Off Gas To Appliance" and call your service technician
or gas supplier.
9. If you wish to operate the Fireplace without the Continous Pilot
simply turn the switch on the control module to "Continuous
Pilot Off" and follow instructions 6-8.
For Your Safety - READ BEFORE LIGHTING:
with American Flame Electronic Ignition
WARNING: If you do not follow these instructions exactly, a re or explosion may result
causing property damage, personal injury or loss of life.

Page 20
L38DF Flush Indoor Gas Fireplace
Part No. XG0180 - 081009
f i r e f e a t u r e
Maintenance
General
QHave the replace and installation inspected yearly.Theinspection
must include, but is not limited to, the following:
• A visual check of the entire vent system and termination.
• An inspection of  the explosion relief appers and the door
gasketing to ensure a proper seal.
•An inspection of the burner, venturi, and primary air openings.
•  Aninspectionofthegasvalve,gascomponents,andpilotame.
Foryourconveniencea1/8"manifoldpressuretapissupplied
on the gas valve for a test gauge connection. See Figure 32.
• Inspection of all optional equipment; fans, thermostats, etc.
QFor Natural Gas this appliance requires a minimum inlet pressure
of5.5"W.C.andamanifoldpressureof3.5"W.C.
QFor Propane Gas this appliance requires a minimum inlet pressure
of11"W.C.andamanifoldpressureof10"W.C.
QAlwayskeepthereplaceareaclearandfreeofcombustiblematerials,
aswellasgasolineandotherammablevaporsandliquids.
QDonotusethisapplianceifanyparthasbeenunderwater. Immediately
callaqualiedservicetechniciantoinspecttheapplianceandto
replace any part of the control system and any gas control which
has been under water.
Operation
Lighting Instructions
See pages 16, 17 and 18.
Burner Adjustment
The L38DF is equipped with an adjustable burner, allowing you to raise
orlowertheames.Toadjusttheames,locatetheblackknobmarked
'Hi-Lo', in the centre of the gas control valve (See Figure 32). The front
burners are not adjustable.
QToraisetheameheight,turntheblackknob(locatedbehindthe
lower trim) counter-clockwise.
QTolowertheameheight,turnclockwise.
Figure 32. 'Hi-Lo' Adjustment on the L38DF's gas valve.
Cleaning
Whenthereplaceisrstactivated,theremaybesomesmokingand
avisiblelmmaybeleftontheglass.Thisisanormalcondition,andis
the result of burning of protective coatings on new metal.
QGlassmustbecleanedperiodicallytoremoveanylm(whichisa
normal by-product of combustion) which may be visible. Film can
easily be removed by removing the door, as shown on page 15.
Handle the door carefully, and clean it with non-abrasive glass
cleaners. One of the most effective products is Kel Kem.
QSiliconesealsoninnerdoorduringinitialringwill"offgas",leaving
a visual deposit of a white substance on combustion chamber walls.
This can easily be removed using normal household products.
QUse a vacuum cleaner or whisk broom to keep the control
compartment,burner,andreboxfreefromdustandlint.
QLinearBurnersmaybe cleanedperiodicallywith a vacuumtoremove
soot or other contaminates.
Note: L38DF-I models (electronic ignition) do not feature hi/
lo adjustment.
'Hi-Lo' Adjustment Knob
WARNING!
Do not attempt to clean glass when hot.
Do not clean glass with abrasive materials as any glass etch-
ing may cause premature glass failure.
CAUTION!
Fireplace gas control must be in the “OFF” position and pilot
and main burners extinguished when cleaning appliance with
a vacuum.
Doors can get very hot. Handle only when cool.