Montigo H42-DF 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
XG0148 Canadian Heating Products Inc. Langley, BC V4W 4A Montigo Del Ray Corp. Ferndale, WA 98248 012810
H42DF Indoor
HL42DF Indoor
HR42DF 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.
H42DF Series Gas Fireplace
H42DF Shown
• Installer: Leave this manual
with the appliance.
• Consumer: Leave this
manual for future reference.

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 2
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 Montigo gas replace, an elagent
and well designed gas replace built to your specications. The
Montigo gas replace you have selected is designed to provide
the utmost in safety, reliability, and engineering standards.
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 Montigo gas replace will give you years of durable,
reliable use. Welcome to the Montigo 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
Installation Requirements .................................. 5
Installing the Remote Switch ............................. 5
Vent Terminations .............................................. 6
Installing the Standoffs ...................................... 6
Top Vent Runs......................................................... 9 - 11
Power Vent Runs ..................................................12 - 13
 Finishingaroundthereplace
Fireplace Facing .............................................. 14
Mantels and Surrounds ................................... 14
Wiring ..................................................................14 - 15
Removing and Installing the Door.........................15 - 16
Table Of Contents
Installing HL42DF Designer Beads.............................. 16
Installing H42DF Logset............................................... 17
Installing the Designer Rocks....................................... 18
Operation .........................................................................19 - 23
Maintenance ....................................................................23 - 25
Troubleshooting............................................................ 24
Spare Parts .................................................................. 24
Warranty ................................................................................. 25
Appendix
A. Termination Locations.............................................. 26
B State of Massachusetts / Amendment ..................... 27

Page 3
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Introduction
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.
Thank You for choosing a Montigo Gas Fireplace.
About this Fireplace:
The H42DF-Series is an line of replace's with a standard LogSet,
also Linear-style burner, or Stainless steel, and Premium model. These
replacescanbeconvertedtobothaTopVentorRearVentapplication,
andareavailableinthespecicmodelsbelow.
The H42DF is rated for Natural Gas and Liquid Propane at 34,000 Max.
BTU/H (9.97) Kilowatts, 25.000 Min. BTU/H Input.
► H42DF; Top or Rear Vent convertible, Millivolt Pilot
► H42DF-I; Top or Rear Vent convertible, Intermittent Pilot (HSI)
The HL42DF is rated for Natural Gas and Liquid Propane at 32,000 Max.
BTU/H (9.97) Kilowatts, 21,000 Min. BTU/H Input.
► HL42DF-F; Top or Rear Vent convertible, (Electronic HSI IPI).
The HR42DF is rated for Natural Gas and Liquid Propane at 34,000 Max.
BTU/H (9.97) Kilowatts, 25.000 Min. BTU/H Input.
► HR42DF; Top or Rear Vent convertible, Millivolt Pilot
► HR42DF-F; Top or Rear Vent convertible, (Electronic HSI IPI).
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 H42DF refers to all variations of the model above. Sections
whicharespecictoaparticularvariation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/CGAB-149.1
and .2 Gas Installation Code and local regulations. If the optional air-
circulatingfankit isinstalled,itmustbeelectricallygroundedinaccordance
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 for installation
within the State of Massachusetts. Thisreplacemustcomplywith
NFPA-54 Chapter 10.

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 4
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forH42-DF models are shown below:
When installing a shelf over the top of  the replace, the following
guidelines must be adhered to: For Rear Vent applications the
minimumclearancefromthetopofthereplacetoashelf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.
Top Vent (N.G. & L.P.)
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
Top View
Front View Side View
Clearances
These clearances apply to all dimensions except the framed opening,
where theclearancetocombustiblesis0".TheH42-DF Seriesclearances
to combustible materials are:
Unprotectedcombustiblewallswhichareperpendiculartothereplace
opening, must not project beyond the shaded area shown in Figure
25.
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.
Figure 1. Fireplace dimensions.
Rear Vent (N.G. & L.P.)
0" clearance
to corners only
P”
N”
Q”
G
H
JK
C
L
I
C
L
K
J
G
B
K
J
L
 *Clearancesfromthetopofthereplacetoacombustibleceiling
withinthereplaceenclosure.
** Refer to page 14.
N”
M”
O”
Top Vent or Rear Vent
(with alcove)
H42DF
Top - Rear Vent * 9" 9"
Top - Top Vent 171
/
2"17 "
1
/ 2
Back 1" 1"
Sides 1" 1"
Floor 0" 0"
Mantle** 4" 4"
HL42DF HR42DF
9"
171
/
"
1"
1"
0"
4"
2
MIN
84”
to
96”
Header
12”
7”
door
opening
3”
Rear
Vent
MIN
1”
Cieling
Floor
Alcove
area ove
r
Fireplace
Top Vent
N.G.
& L.P.
N.G. & L.P.
H42DF 463
/
842 21 68 48 N/A
HL42DF 42 215
/
868 481
/
8N/A
HR42DF 463
/
842 215
/
868 481
/
8N/A 40
/
45
/
463
/
8
5
/
81
/
81
/
8
1
/ 845
40
40 45
1
/
8
MO
NRT
QS
P
45”
Header
MEL Short
Shelf
M
17 1/2”
N.G. & L.P.
M
9”
S
Header
Shelf
33”
N.G. & L.P.
B
A
C
DD
D
F
6 1/4”
5 1/4”
H42DF 42 401
/ 2391 / 2283 / 428 12 33
42 401
/
2391
/
211
/
4283
/
420 28 12 33
42 401
/ 239 11 / 4283 / 433
1
/ 2
20
20
1
1
1
110 4
8
8
8
740
28
217
/
8
1
/ 4
17
37
11
/
4
11
/
4
313
/ 8
4834
HL42DF
HR42DF
1
/
2
1
/ 2
1
/
2
12
5
5
5
ACEGIK
BDFHJL

Page 5
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation
Vent Installation
This section covers the installation of direct venting and terminations.
Installation Requirements

H42DF-Series fireplaces are certified for use with Montigo Standard Series
(5" / 8") venting components.
 Minimum 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".
 Use only certied Montigo vent components. (Use of other parts will void
the Montigo warranty, and may impede the operation of the fireplace.)
 All joints must be secured with a minimum of two screws per joint
 Vent terminations must not be recessed in walls or siding
 Horizontalrunsmustbesupportedbyaminimumoftwo supportsperhorizontal
run. A minimum of one screw on each side of support is also required
 Flex vent sections may be stretched up to 50% of their total length (eg. a
24" section may be stretched to 36")
 Solid vent sections may be cut less than half way from the female end
 Venting 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 H42DF-Series
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 5b.
•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).
Burner Tray Gasket
Figure 5b. Gas line access.
Gasline Acces
0.875 dia.
7
to center
2
Cautions:
 Vent terminations can be very hot. If the termination is less than 7 feet
above a public walkway, it should be fitted with a certified Montigo
Heat Guard. (Part no. PTKOG).
Do not obstruct, or attempt to conceal the vent termination.
These actions will affect the operation of the fireplace, and may
be hazardous.
In heavy snow areas, take extra care to prevent snow buildup
from obstructing the vent termination.
Use Montigo Vinyl Heat Shield (Part no. VSS) when using on ap-
plications with vinyl siding to guard against possible damage.

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 6
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 (5"/8")
PTO-4F (5"/8")
PTO-3F (5"/8")
MTKOG (4"/7")
PTKOG (5"/8")
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.
Installing Heat Guards over Terminations
Installing The Standoffs
To avoid elevated mantel temperatures, all H42DF Series 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6"clearance.
Figure 6b. Installing the standoff's.
Figure 4a. Installing a PTO termination.
Figure 4b. Installing a PTO termination with the MSR frame.
Figure 4c. Installing a PTO termination with the MOSR frame.
Figure 4d. Installing a PTO termination heat guard.
Figure 6c. Installing the Nailing Flange Extension.
steel lintel is in place, (Part No. L42087) (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 7
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation
Converting to Top Vent/ Rear Vent
H42DF Top Vent
Use the following instructions to convert an H42DF 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uegasketmaterialanduecoverplateontherearvent
outlet . Fasten the plate with four screws, as illustrated below.
3. 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 for Top Vented replace.
Figure 7b. Flue collar installation for Top Vented replace.
Figure 8a. Flue cap installation for Rear Vented replace.
Figure 8b. Flue collar installation for Rear Vented replace.
4”Inner Flue Cap
7”Outer Flue Cap
H42DF Rear Vent
Use the following instructions to convert an H42DF for Top Vent use:
1. Installthe"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.
4”Inner Flue Collar
7”Outer Flue Collar
4” Inner Flue Cap
7” Outer Flue Cap
4”Inner Flue Cap
7”Outer Flue Cap
4” Inner Flue Cap
7” Outer Flue Cap
7”Outer Flue Collar
4”Inner Flue Collar
3.Installtheuegasketmaterialanduecoverplateonthetop
vent outlet. Fasten the plate with four screws as illustrated in
Figure 8b.
4.Installthe5"inneruecollarandthe8"outeruecollarin
placeontherearventoutletusingvescrewsasillustrated
below.
5"
5"
5"
8"
8"
8"
8"
5"
5"
8"
5"
8"

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 8
42”
45”
BC
A
Vertical Run (in.)
Installation
Top Vent Venting Runs
For the H42DF 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.
H42DF, HL42DF, HR42DF
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 84" and the horizontal run to
the wall flange of the vent termination is 36", this would be an acceptable
installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 72" and the horizontal run to
the wall flange of the vent termination is 66", this would be an acceptable
installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 74" and the
horizontal run to the wall flange of the vent termination is 108", this would
NOT be an acceptable installation.
Figure 9b. Top Vent Venting Graph, (All models)
Power Vent models, EDVPV47
LDVPV47, EDVRSPV47, and
EDVWSPV47 to be used within the
shadedareaofgraph.(SeeBELOWfor
applicable Product information).
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 7).
Available Top Vent Components
The following venting components are available for the H42DF-Series
Top Vent:
Example 1:
ForourshortestventingcongurationusecomponentsAandE(see
Figure 10).
5" / 8" Venting
A - TerminationP TO-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)
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.

Page 9
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation
PEL
RHS8 Heat Shield
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.
PEL-90F/F Elbow
Horizontal Venting
Figure 11. 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 12. 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 2:
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 3 feet must
fall within the limits set by the venting graph, and must have a minimum
verticalriseof3"perfootofex.
RHS8 Heat
Sheild
RHS8 Heat
Shield
Figure 13. Retracted Installation using a combination of solid and ex
venting. Use the vent graph to determine your allowable
run, then select appropriate components.
Figure 14. Horizontal ex installation with no vertical rise.
RHS8 Heat
Shield
RHS8 Heat
Shield
42” Max.
45”
Min.

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 10
Installation
B. Vertical (Through-The-Roof) 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 18" (1 1/2 feet) from a parapet wall.
 Maximumventheightis:35'feetabovereplace.
Note: Flame characteristics will change if the maximum vent height
is used.
 Minimumclearances1"fromventtoallcombustiblematerialsmust
be maintained.
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
25% of 20' = 5' max. offset allowed
This venting configuration meets requirements.
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")
Figure 15. Straight, vertical venting showing required MXT-10/PXT-10
adaptor (supplied with the MVKT-1/PVTK-1 termination).
Figure 16. Vertical venting with 1 oset (1 oset= two 90° bends).
MEXT/PEXT
PEXT
PXT-10
Important: HL42DF & HR42DF 5"/8" to be used with
VertIcal Vent Run Only. 4"/7" Venting Only allowed if
the Vertical venting Run is Power Vented
A- Termination PVTK-1
B - Flex Sections PFL-1(12"Section)
PFL-2(24"Section)
PFL-3(36"Section)
PFL-4(48"Section)

Page 11
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation
Figure 17. Vertical venting with 2 osets (1 oset= two 90° bends).
Figure 18. Reducing Vertical Vent from 5/8" to 4/7". (Power-Vent Only)
Reduced Vertical Installation
(Power vent Only)
Itispossibletoreduceverticalventrunsfrom5"/8"ventingto4"/7"
venting.Reduced verticalventing may only beused when theinstallation
exceeds 12 feet and terminates through the roof, and if the vertical vent
reducerisusedwiththefollowingventingconguration.
1 MIN
1 MIN
1 MIN. Both
sides Typical
RHS8 Heat
Shield
Figure 18a. RHS8 Installation. (Install by sliding over vent pipe where
it passes through the combustible construction.
Figure 18b. 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
Power Vents for
H42DF, HR42DF, HL42DF
The H42DF-SeriesofgasreplacescanalsousePowerVents;ifthe
ventrunisbeyondthescopeofthisdocument,orthespecications
recommend vent augmentation. 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).

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 12
18” Max.
Framing
Termination Vent Pipe
HSI101 Heat Shield
Inner Section
Drywall / Sheetrock
HSI101 Heat Shield
Outer Section
Installation
Figure 20. Corner installation.
Figure 21. Flex installation.
2. 45° Corner Installation.
 AttachanEEL-45/PEL-45(45°elbow)directlyontotheuecollar.
CuttheEXT-18/PXT-20tosuit,andattachittotheEEL-45/PEL-45.
Slidethereplaceintopositionandattachtothetermination.
3. Corner Installation — 45° or less.
 UseanPTO-3terminationandanPFL-1orPFL-2/PFL-2(12"or24"
compressed length) and a frame, if appropriate. Flex may be turned
to obtain desired degree of angle required but must not exceed 45°.
Figure 19. Extended installation.
Rear Vent Venting Runs
The H42DF-Series 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.
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 19. Heat Shield. Install by sliding over the vent pipe where it
passes through combustible construction.
Note: Through the wall venting kits are also available for both
the Straight and the Corner Installation. The Kit includes a heat
sheild,aPFL-18(f/f)exiblepipe,andaterminationwithorwithout
a mounting frame.
1. Straight Installation.
 Theheightfromthehearthtothecenteroftheterminationis33".For
straightinstallationsusea18"extensionpipe(PXT-18)withfemale/
femaleconnections.Forshorterinstallations,cutthePXT-18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18".
PEL-45 Elbow
PEL-90 Elbow
PXT-18
PXT-18

Page 13
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
18”
33”
BC
A
Vertical Run (in.)
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72"andthehorizontal
runtothewallangeoftheventterminationis66",thiswouldbe
an acceptable installation.
Example C: (Unacceptable Installation)
Iftheverticaldimensionfromtheoorofthereplaceis72"and
thehorizontalruntothewallangeoftheventterminationis84",
this would NOT be an acceptable installation.
Figure 22c. H42DF Multi-Elbow Venting Graph.
Installation
Figure 23. Multi-elbow installation.
For H42DF distance 'H' must be a minimum of 50".
The vent run must comply with gure 22b.
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 22a).
Power Vent models, EDVPV47
LDVPV47, EDVRSPV47, and
EDVWSPV47 to be used within the
shadedareaofgraph.(SeeBELOWfor
applicable Product information).
B. Multi-Elbow Installations
Formoredifcultinstallationsituations,theH42DF-Series 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45"(measuredfromthe
hearth)
your vent run must fall within the limits set by Figure 22a
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.22a)withan'X'.
Ifthe'X'fallsonorabovethetopboundaryoftheshadedarea,the
installation is acceptable.
18"
50”
33”
A - TerminationP TO-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)

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 14
Installation
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.
Figure 25. Combustible surrounds.
Wiring
Gas Control and Pilot Wiring H42DF-I
Figure. 26. Wiring for the H42DF-I with Honeywell gas control and pilot.
Figure 24. Combustible mantles and facings.
Fireplace Facing
Whenselectingthenishmaterialforyourreplace,itisimportantto
remember the following:
Ifthesurroundofthereplaceistobepaintedtomatchtheroomdecor,
heat-resistant paint must be provided . Also, 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 and access to the lower
compartment.
Horizontal Run (in)
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
Facing Material
Header
Drywall/
Sheetrock
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.
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.
Warning:
When covering the upper metal portion of the replace 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.
We recommend careful consideration be given to the effects of elevated
mantel temperatures which may be in excess of product design, for
example:candles,plasticorpictures. Thiscancausemelting,deformation,
discoloration or premature failure of T.V. and radio components.

Page 15
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation
Wiring for the optional Fan Kit
All H42DF-Series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. 27. Wiring for optional fans.
Removing and Installing
the Door
Removing the door:
The H42DF-Series door is removed in a few simple steps. Follow these
Steps below to remove the Horizontal access panel, unlatch the door
buckles and, remove the door. 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
1
Step 4:
Firmly grasp hand-hold
end of Door buckle tool
and place the machined
end in the slot under door
frame. (as shown)
Figure 28c.
Step 2:
Step 3:
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
Remove the Horizontal Access Panel:
G
L2-WH
L1-BLK
p g
Quick Connect
lu to motor
5/1/60 Supply
G L1 L2

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 16
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:
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.
Installation

Page 17
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation
H42DF
Top
Right Log
Top Right
Log
Align Pins
Align Pins
Top
Left Log
Top Left
Log
Notch in Log
Installing the H42DF Log Set
Installing the Logs:
The H42DF issuppliedwithasevenceramicbreloglogset.Unpack
the logs and handle them very carefully.
Step 1. Remove the glass door as described on Page 15.
Figure 30a. Placing Bottom Rear Log.
Step 2.PlacethebottomRearlogasshowningure30a.
Pilot Assembly
Fireplace Base
Rear / Bottom Log
Notch in Log
Figure 30b. Placing Bottom Right / Left Logs.
Step 3. Place the bottom Right and Left logs as shown in gure 30b.
Step 4. Place the Top Right log as shown in gure 30c. using the (4) four
alignment pins protruding from the top of the Right and Left Bottom
Logs, as shown in gure 30c. With these pins align the Top Right
and Left logs using the predetermined alignment holes cast into
Figure 30c. Top Left / Right Log.
the underside of the logs, as shown above, gure 30c insets.
Step 5. Place the Centre Front log , Figure 30d below, as shown using
the notch cast in the Bottom Rear log as shown in gure 30c above.
Figure 30d. Placing Centre Front Log.
Step 7. Place the Right Centre log as shown in gure 30e.
Figure 30e. Placing Right Center Log.
Step 8. Place the Right Center log as shown using the notch in the Top
Rightlogasaguide,gure30f.
Figure 30f. Placing Embers.
Step 9. Place the Embers as shown in gure 30f.
Arrange the ember chips on top of the burner tray. Care should be taken
when placing the embers, as blocked burner ports may cause an
incorrect flame pattern, carbon deposits and delayed ignition. Also,
the embers must never be placed in a way that obstructs any of the
air inlet ports, located at the rear of the burner, as shown in gure 30b.
Right Front
Log
Groove
in Log
Rest Log
Center Front Log
Centerline of Fireplace
Align
Bottom Left Log
Air Inlets
Align
Bottom Right Log
Fireplace Base
Cautions:
 If logs are not placed properly, excessive sooting
will result.
 The surface of the logs will crack due to the heat from
theames.Thisisanormaloccurrence.
Place Embers in this area

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 18
Installation
HR42DF
Installing the HR42DF
Articial Rocks
Installing the Articial Rocks:
The HR42DF issuppliedwith(37)thirty-sevenfauxceramicbreriver
rock. Unpack the rocks and handle them very carefully. Shown Below:
1. Remove the glass door as described on Pages 15-16.
2. InstallRearfaux"A"ceramic3in1RockasshowninFigure31.
Back of Fireplace
Air Inlets
Figure 31. Placement 3 in 1 rear faux ceramic rock "A".
Pilot and cover
4-Center faux Rock "B"
(flat side down)
Figure 31b. Placement 4-center faux ceramic rock "B".
Burner holes
3 in 1 faux
Rock "A"
3. Placethe(4)fourcenterfauxrocks"B"ontheriserspikes.
Spikes, 2-per rock
Rock riser

Figure 31a. Inset
4. Place(1)onecenterfauxrocks"C"onPilotcover.
Figure 31c. Placement 1-faux ceramic rock "C", (on Pilot cover).
5. Place(18)eighteenfauxrocks"D"asshownbelow.
Figure 31c. Placement 18-faux ceramic rock "D", (as shown).






   




   
6. Place(3)threefauxrocks"E"asshownbelow.
Figure 31D. Placement 3-faux ceramic rock "E", (as shown).
 
6. Place11)elevenfauxrocks"F"asshownbelow.
Figure 31E. Placement 11-faux ceramic rock "F", (as shown).


 
 



Figure 31F. Completed Placement. Note: You may have to adjust the
Faux rocks to produce a pleasing ame pattern and reduce
sooting. (as shown)

Page 19
H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Installation HL42DF
Installing the HL42DF Glass
Beads and Optional River Rocks
Beads
The HL42DFreplaceissuppliedwithDesignerGlassbeads.
Remove the Door and trim as shown in the previous Instruction.
Follow these instructions to ensure all parts are removed or replaced
asrequired.OncetheTrimandglassdoorsareremovedplacethe
marbles randomly across the pan and the burners as described in
Figure 32 to 32d.
Note: (N.G.) Natural Gas models, Only cover the Optional
burner covers with one layer of designer beads.
Figure 32. Installation of the Optional burner covers , (end to end;
place evenly).
Figure 32a. Installation of the designer beads. (Ensure one layer of
beads covers the burner and pilot covers.
Figure 32b. Spreading designer beads evenly .
Propane HL42DFreplace have the option of installing the optional
cultured rocks or designer glass beads. As described below (Propane
gas), the designer beads or cultured rocks cannot cover the burn-
ers.Doingsoproducesanundesireable/unevenamepattern,and
eventual sooting.
www.montigo.com
Note: (LP gas) Ensure the optional river rocks or designer
glass beads do not cover the Burners.
Figure 32c. Completed glass bead installation.
Figure 32d. Operating Natural gas replace with one layer of designer
glass beads.
Figure 33. Completed glass bead installation. (Note: place glass
beads on top of mesh pilot cover.
Figure 33a. Operating Propane gas replace with designer glass
beads surrounding burner tray.
Optional River Rocks
The HL42DFreplacehastheoptionofinstallingtheculturedrocks
which mimic real stone. These may be spaced at random, or in a
visual pattern of your preference. See the Montigo web site for photo-
graphs and ideas.
www.montigo.com

H42DF Series Indoor Gas Fireplace
Part No. XG0148 - 012810
Page 20
Operation - Model H42DF
H42DF
WARNING: If you do not follow these instructions exactly, a re or explosion may result
causing property damage, personal injury or loss of life.
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.
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.