Mendota FV44 DECOR Manual

MODEL NO. FV44 DECOR - 0616
FullView Direct Vent Gas Fireplace Insert Heater
Installation & Operating Instructions
–Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
–WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance.
•Do not touch any electrical switch; do not
use any phone in your building.
•Immediately call your gas supplier from a
neighbor’s phone. Follow the gas
supplier’s instructions.
•If you cannot reach your gas supplier, call
the fire department.
–Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
WARNING: If the information in these
instructions are not followed exactly, a fire
or explosion may result causing property
damage, personal injury or loss of life.
This appliance may be installed in an aftermarket
permanently located, manufactured home (USA
only) or mobile home, where not prohibited by
local codes.
This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is
not convertible for use with other gassed, unless
a certified kit is used.
A barrier designed to reduce the risk of burns
from the hot viewing glass is provided with this
appliance and shall be installed.

TABLE OF CONTENTS
LISTING LABEL INFORMATION.................................................................................................................1
Listing Label Location ....................................................................................................................................1
SAFETY AND WARNING INFORMATION .................................................................................................2
Congratulations..............................................................................................................................................2
Building Permit and Inspection Approval Requirements.................................................................................2
Safety Warnings.............................................................................................................................................2
Specific Requirements for the Common Wealth of Massachusetts.................................................................5
GENERAL INFORMATION...........................................................................................................................6
Safety and Structural Concerns......................................................................................................................6
Heating Performance.....................................................................................................................................6
Electrical Requirements .................................................................................................................................6
Manual Gas Shutoff Valve Installation Requirement.......................................................................................6
INITIAL STARTUP INFORMATION AND ADVICE....................................................................................7
Initial Burn Cycle............................................................................................................................................7
Paint Curing Cycle .........................................................................................................................................7
Blower Break-in Period ..................................................................................................................................7
Paint Types Approved for Use .......................................................................................................................7
Sealant Types Approved For Use ..................................................................................................................7
Additional Application Cautions......................................................................................................................7
SPECIFICATIONS..........................................................................................................................................8
General Specifications...................................................................................................................................8
Overall Dimensions........................................................................................................................................9
Required Clearances ...................................................................................................................................10
MANTEL INFORMATION............................................................................................................................11
HEARTH PROTECTION PAD REQUIREMENTS ....................................................................................12
VENTING REQUIREMENTS.......................................................................................................................14
General Venting Requirements....................................................................................................................14
Venting Installation Instructions....................................................................................................................15
Vent Damper Setting....................................................................................................................................17
ELECTRICAL REQUIREMENTS................................................................................................................18
Planning for AC 120 VAC Connection..........................................................................................................18
Backup DC Power Connection.....................................................................................................................19
Operating During Power Outages................................................................................................................19
GAS SUPPLY REQUIREMENTS...............................................................................................................20
Gas Supply Line Sizing................................................................................................................................20
Gas Pressure Checking ...............................................................................................................................21
Gas Input Rate Verification ..........................................................................................................................22
Natural Gas Input Rate Verification...........................................................................................................22
LP Gas Input Rate Verification .................................................................................................................22
High Altitude De-Rating................................................................................................................................22

CONVERTING INSERT FOR LP GAS.......................................................................................................23
Orifice Size Requirement .............................................................................................................................23
Procedure to Convert Insert for LP Gas .......................................................................................................23
LP Pressure Regulator Conversion Instructions..........................................................................................24
Checking Burner(s) Ignition Characteristics................................................................................................26
Attaching LPG Conversion Labels ............................................................................................................26
LP Gas Pressure Requirements...................................................................................................................27
LP Gas Proper Input Rates......................................................................................................................27
Leak Testing Requirements .....................................................................................................................27
Pilot Flame and Main Burner Relationship Verification.................................................................................27
Pilot Flame Length Adjustment.................................................................................................................27
BURNER MEDIA INSTALLATION INSTRUCTIONS...............................................................................28
Flame Appearance Adjustment....................................................................................................................28
INSTALLATION CHECK OFF LIST...........................................................................................................29
LIGHTING CHECK OFF LIST.....................................................................................................................29
USING THE REMOTE CONTROL.............................................................................................................30
Remote Control Transmitter Functions.........................................................................................................30
Setting Pilot to IPI versus CPI Mode..........................................................................................................30
Remote Control Transmitter Operating Instructions......................................................................................31
To Turn ON the Appliance .......................................................................................................................31
To Turn OFF the Appliance......................................................................................................................31
Remote Functions ..................................................................................................................................31
Synchronizing the Receiver and Transmitter..............................................................................................32
FIRST TIME LIGHTING INSTRUCTIONS.................................................................................................33
Safety Information........................................................................................................................................33
Operating Instructions..................................................................................................................................33
To Turn OFF Gas to Appliance ....................................................................................................................33
TROUBLE-SHOOTING................................................................................................................................34
Common Trouble-Shooting Information........................................................................................................34
Over Firing or Under Firing of Burner .......................................................................................................34
Pilot Outage and Re-Lighting ...................................................................................................................34
Cleaning Viewing Glass...........................................................................................................................34
Trouble-Shooting Mendota Gas Inserts........................................................................................................34
MAINTENANCE............................................................................................................................................35
Required Annual Maintenance.....................................................................................................................35
Periodic Inspections Required......................................................................................................................35
Burner Flames General Heights Reference Diagram ...................................................................................35
WIRING DIAGRAM......................................................................................................................................36
BLOWERS ....................................................................................................................................................37
Blower Operation.........................................................................................................................................37
GLASS FRAME REMOVAL........................................................................................................................38
Removing the Glass Frame..........................................................................................................................38
Installing the Glass Frame............................................................................................................................38

SERVICE PARTS.........................................................................................................................................39
Valve Assembly ...........................................................................................................................................39
Burner Parts.................................................................................................................................................40
Blower Parts.................................................................................................................................................40
Glass Frame Assembly Repair and Replacement........................................................................................41
NOTES...........................................................................................................................................................42
MENDOTA WARRANTY & SERVICE FORM...........................................................................................43
MENDOTA LIFETIME WARRANTY ..........................................................................................................45
Standard Warranty.......................................................................................................................................45
Extended Lifetime Warranty.........................................................................................................................45

LISTING LABEL INFORMATION
When contacting your dealer for anycleaning service or warranty service, always provide the Model Number, Serial
Number and Manufactured Date. This information will expedite the warranty verification process.
Listing Label Location
The listing label is located in the air gap
on the left side of the insert between
the glass frame and outer edge of the
insert. It is connected with a chain and
can be pulled out to be viewed.
Listing Label
Located Here
PAGE 1

Congratulations
You are the owner of a world-class heat producing gas direct vent sealed combustion fireplace.
This elegant, highly efficient Fireplace will be a constant source of comfort and fascination. It will be the focal point
of beauty and interest in your home.
The Mendota Gas Fireplace is a true heating appliance incorporating the traditional aesthetics of fireplace fire
viewing with the controllability and fuel efficiency of a home gas furnace. Of particular interest is the low fuel
consumption and brilliant fire viewing afforded by the realistic HearthGlo wood fire-like combustion system.
Carefully read the following instructions prior to actual installation. Proper Mendota Gas Fireplace installation and
operation will give you years of safe, trouble free comfort and enjoyment.
If you have any questions regarding installation or operation of your Mendota Fireplace please contact your local
dealer.
Building Permit and Installation Inspection Approval Requirements
All installations of Mendota Fireplaces and Inserts must comply with all the requirements stated in this
Installation and Operating Instructions Manual. The Dealer and/or installer must also obtain all required Building
Permits and Inspection Approval from the local building inspection department or the local body having
jurisdiction. In order to validate warranty coverage, Mendota may require facsimile copies of the Building Permit
and Inspection Approval forms. Failure to provide adequate proof that the installation conforms to all local
requirements and the requirements stated in the Installation and Operating Instructions Manual will void all
applicable warranty.
INSTALLER: THESE INSTRUCTIONS ARE TO REMAIN WITH HOMEOWNER.
HIGH ALTITUDE INSTALLATION INFORMATION: Prior to installing at altitudes higher than 7500, understand
the need for gas input de-rating. Contact Mendota Technical Service for support.
SAFETY AND WARNING INFORMATION
Safety Warnings
Warning: This product contains lead, a
chemical known to the State of California
to cause birth defects or other reproductive
harm.
Wash your hands after handling this product.
PAGE 2

In the Commonwealth of Massachusetts:
•Installation must be performed by a licensed
plumber or gas fitter;
•A CO detector shall be installed in the room where
the appliance is installed.
WARNING: Improper installation, adjustment, alteration,
service
or maintenance can cause injury or property
damage. Refer to this manual. For assistance or
additional information consult a qualified installer,
service agency or the gas supplier.
FOR YOUR SAFETY
A qualified installer, service agency, or the gas
supplier must perform installation and service.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance. WARNING
Do not operate this appliance with the glass removed,
cracked or broken. A licensed or qualified person
should do replacement of glass.
AVERTISSEMENT. Ne pas utiliser l’appareil si le
panneau frontal en verre n’est pas en place, est
craqué ou brisé. Confiez le remplacement du panneau
à un technicien agréé.
WARNING
Mendota gas fireplaces are heat producing appliances.
Do not burn wood, paper or other materials in this
fireplace. This fireplace is designed as a supplement
heat source. It is advisable to have an alternative
primary heat supply.
The installation must conform with local codes or, in the
absence of local codes, to the current National Fuel Gas
Code, ANSI Z223.1 (NFPA 54) or CAN/CGA B149.1
Installation Code.
Installer l'appareil selon les codes ou règlements locaux,
ou, en l'absence de tels règlements, selon les Codes
d'installation CAN/CGA-B149.
This appliance may be installed in an aftermarket
permanently located, manufactured (mobile) home (USA
Only), where not prohibited by local codes.
This appliance is only for use with the type(s) of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases, unless a certified kit
is used.
Cet appareil peut être installé dans un maison
préfabriquée (mobile) déjà installée à demeure si les
règlements locaux le permettent.
Cet appareil doit être utilisé uniquement avec les types
de gas indiqués sur la plaque signalétique. Ne pas
l’utiliser avec d’autres gas sauf si un kitde conversion
certifié est installé.
READ and UNDERSTAND all instructions carefully before starting the appliance. FAILURE TO FOLLOW these instructions
may result in a possible fire hazard and will void the warranty.
Any safety screen or guard removed for servicing must be replaced before operating this appliance.
Tout écran ou protecteur retiré pour permettre l’entretien de l’appareil doit être remis en place avant de mettre l’appareil en
marche.
THIS UNIT IS NOT FOR USE WITH SOLID FUEL.
Installation and repair should be PERFORMED by a qualified service person. The appliance and venting system should be
INSPECTED before initial use and at least annually by a professional service person. More frequent cleaning may be required
due to excessive lint from carpeting, bedding, material, etc. It is IMPERATIVE that the unit’s control compartment, burners,
and circulating air passageways ARE KEPT CLEAN to provide for adequate combustion and ventilation air.
Always KEEP the appliance clear and free from combustible materials, gasoline, and other flammable vapors and
liquids.
NEVER OBSTRUCT the flow of combustion and ventilation air. Keep the front of the appliance CLEAR of all obstacles and
materials for servicing and proper operation.
Due to high temperature, the appliance should be LOCATED out of traffic areas and away from furniture and draperies. En
raison des températures élevées, l’appareil devrait être installé dans un endroit où il y a peu de circulation et loin du mobilier et
des tentures.
Clothing or flammable material SHOULD NOT BE PLACED on or near the appliance.
On ne devrait pas placer de vêtements ni d’autres matières inflammables sur l’appareil ni à proximité.
PAGE 3

Children and adults should be ALERTED to the hazards of high surface temperature and should STAY AWAY to avoid burns
or clothing ignition.
Les enfants et les adultes devraient être informés des dangers que posent les températures de surface élevées et se tenir à
distance afin d’éviter des brûlures ou que leurs vêtements ne s’enflamment.
Young children should be CAREFULLY SUPERVISED when they are in the same room as the appliance. Toddlers, young
children and others may be susceptible to accidental contact burns. A physical barrier is recommended if there are at risk
individuals in the house. To restrict access to a fireplace or stove, install an adjustable safety gate to keep toddlers, young
children and other at risk individuals out of the room and away from hot surfaces.
“Les jeunes enfants devraient être surveillés étroitement lorsqu’ils se trouvent dans la même pièce que l’appareil. Les tout
petits, les jeunes enfants ou les adultes peuvent subir des brûlures s’ils viennent en contact avec la surface chaude. Il est
recommandé d’installer une barrière physique si des personnes à risques habitent la maison. Pour empêcher l’accès à un
foyer ou à un poêle, installez une barrière de sécurité; cette mesure empêchera les tout petits, les jeunes enfants et toute
autre personne à risque d’avoir accès à la pièce et aux surfaces chaudes.
These units MUST use one of the vent systems described in the Flue Venting section of this manual.
This gas fireplace and vent assembly MUST be vented directly to the outside and MUST NEVER be attached to a chimney
serving a separate solid fuel-burning appliance. Each gas appliance MUST USE a separate vent system. Common vent
systems are PROHIBITED.
The vent system assembly for this fireplace must be periodically examined by a qualified service agency.
If the vent-air intake system is disassembled for any reason, reinstall per the instructions provided for the initial installation.
INSPECT the external vent cap on regular basis to make sure that no debris is interfering with the airflow. The flow of
combustion and ventilation air not to be obstructed
DO NOT abuse the glass door by striking the glass, slamming the door shut, etc.
Use only authorized parts and materials obtained from Johnson Gas Appliance Company when replacing defective or
damaged glass.
DO NOT USE abrasive cleaners on the glass door assembly. DO NOT ATTEMPT to clean the glass door when it is hot.
Turn off the gas before servicing this appliance. It is recommended that a qualified service technician perform an appliance
check-up at the beginning of each heating season.
DO NOT place furniture or any other combustible household objects within 36 inches of the fireplace front.
This vented gas fireplace heater is not for use with air filters”.
Foyer au gaz à évacuation.- Ne pas utiliser avec du combustible solide.
Keep burner and control compartment clean. See installation and operating instructions accompanying appliance." S'assurer
que le brûleur et le compartiment des commandes sont propres. Voir les instructions d'installation et d'utilisation qui
accompagnent l'appareil.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer
to the owner’s information manual provided with this appliance. For assistance or additional information consult a qualified
installer, service agency or the gas supplier.
L'AVERTISSEMENT: L'installation inconvenante, ajustement, modification, service ou entretien peut causer le dommages de
propriété ou blessure. Référer au manuel d'information de propriétaire fourni cet appareil. Pour l'assistance ou information
supplémentaire consulte un qualifiée installeur, agence de service ou le fournisseur de gaz.
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 underwater.
This appliance is for use with only doors certified by Mendota. Do not use any fronts or doors with this appliance
unless they are certified by Mendota and installed by a certified installer.
PAGE 4

Specific Requirements for the Common Wealth of Massachusetts
The information in this section applies to all installations performed in the Common Wealth ofMassachusetts only.
a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or
in part for residential purposes and where the side wall exhaust vent termination is less than seven (7) feet above grade,
the following requirements shall be satisfied:
1. If there is no carbon monoxide detector with an alarm already installed in compliance with the most current edition of
NFPA 720, NFPA 70 and the Massachusetts State Building code in the residential unit served by the side wall
horizontally vented gas fueled equipment, a battery operated carbon monoxide detector with an alarm shall be
installed in compliance with the most current edition of NFPA 720. NFPA 70 and the Massachusetts State Building
Code.
2. In addition to the above requirements, if there is not one already present, a carbon monoxide detector with an alarm
and a battery backup shall be installed and located in accordance with the installation requirements supplied with the
detector on the floor level where the gas equipment is installed. The carbon monoxide detector with an alarm shall
comply with 527 CMR, ANSI/UL 2034 Standards or CSA 6.19 and the most current edition of NFPA 720. In the event
that the requirements of this subdivision cannot be met at the time of the completion of the installation of the
equipment, the installer shall have a period of thirty (30) days to comply with this requirement; provided, however,
that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed in
compliance with the most current edition of NFPA 720, NFPA 70 and the Massachusetts State Building Code. In the
event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the carbon
monoxide detector may be installed on the next adjacent habitable floor level. Such detector may be a battery
operated carbon monoxide detector with an alarm and shall be installed in compliance with the most current edition of
NFPA 720, NFPA 70 and the Massachusetts State Building Code.
3. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height
of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled
heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT
DIRECTLY BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS”
4. A final inspection by the state or local gas inspector of the side wall horizontally vented equipment shall not be
performed until proof is provided that the state or local electrical inspector having jurisdiction has granted a permit for
installation of carbon monoxide detectors and alarms as required above.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2) (a) 1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of
NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the
dwelling, building or structure used in whole or in part for residential purposes.
(c) When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system
design or venting system components with the equipment, the instructions for installation of the equipment and the
venting system shall include:
1. A complete parts list for the venting system design or venting system; and
2. Detailed instructions for the installation of the venting system design or the venting system components.
(d) When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the
parts for venting the flue gases, but identifies “special venting systems”, the following shall be satisfied:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all
venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the
appliance or equipment at the completion of the installation.
PAGE 5

GENERAL INFORMATION
Your Mendota Gas Fireplace Insert has a state-of-the-art direct vent, sealed combustion system. This advanced, highly
efficient system brings in outside air for combustion, has a separate exhaust vent and efficiently heats and re-circulates
room air. The Mendota system maintains high air quality, maximizes efficiency and assures proper operation.
Safety and Structural Concerns
This Mendota Fireplace Insert shall only be installed in an existing Masonry Wood Burning Fireplace or a Factory Built
Wood Burning Fireplace.
A non-combustible hearth protector is required and must extend a minimum of 16” in front of the fireplace when this insert
is installed at floor level. For every 1” that the insert is raised off the floor the hearth protector can be reduced by 2”.
Any existing or new combustible mantel must fall within the Mantel Profile Chart located in this manual. If an existing man-
tel does not conform to the chart relocate it or install a 20 gage metal shield under the mantel. The shield must extend the
full length and width of the mantel. The shield must be placed 1” below the mantel to provide an active air space.
Use only Mendota approved Vent Systems and Vent Caps.
Only Fronts and Doors certified with this appliance by Mendota shall be used.
Heating Performance
This Mendota Fireplace Insert is a true, high efficiency gas heater. The Mendota Insert will usually heat a large area of
your home if situated to maximize heat circulation. The Mendota Insert is designed as a supplemental heat source. It
should not be used as a whole house heating system. Supplemental air movement considerations for maximizing heat
circulation are: through-the-wall grills, floor grills, ceiling fans, or the continuous operation of central heating and cooling
blowers.
Electrical Requirements
Electronic Ignition System, Dual Blowers and an Accent Light system are included in this Mendota Direct Vent Fireplace.
These devices require constant electrical power except during power outages. A 115-volt electrical service must be sup-
plied at the fireplace location at the time of installation, on the right side of this fireplace. It must be electrically grounded in
accordance with local codes, or in their absence, with the current edition of the National Electric Code ANSI/NFPA 70.
Use of a wall switch control in the power supplied to this fireplace is NOT allowed.
Thermostatic function is included in the remote control transmitter. Therefore, no thermostat wire is required.
Manual Gas Shutoff Valve Installation Requirement
A manual Shutoff Ball valve is factory installed in the appliance and is accessible through the air gap on the left of the
glass frame. Use the glass latch tool to operate the Shutoff Ball valve. If local building codes require, obtain an external
Wall Mounted Manual Gas Shutoff Valve approved per local gas plumbing codes and install per local gas plumbing codes
in the specified location.
PAGE 6

INITIAL STARTUP INFORMATION AND ADVICE
CAUTION: Before you ignite the pilot or burners, perform the following inspections and verifications:
Check glass gasket seal. Visually inspect glass gasket, especially at the corners of the glass piece. Gasket that bulges at
corners can cause improper seals between the bulges which can cause exhaust leaks and lead to smell concerns.
If facing materials are freshly painted or freshly polished (in cases of marble or granite), make certain that the convection
blower is running at level 2 or level 3 during the first 1-1/2 hours of initial burn. After the 1-1/2 hours, turn off the convec-
tion blower and proceed with the paint curing cycle.
Initial Burn Cycle: During the first burn cycle (approximately for 3 hours), itis normal for this appliance to emit visible
smoke and some odor. The smoke generated is a mixture of paint curing, lubricating oils burning off, glass gasket adhe-
sive curing and ceramic sealant gaskets curing. The smoke generated can trigger smoke and fire alarms. It is recom-
mended to open alldoor and windows during initial cure cycle.
Paint Curing Cycle:It is recommended that you run this Fireplace on maximum flame height with the Convection
Blowers turned on at level 2 or level 3 for the first 1-1/2 hours. After the first 1-1/2 hours, turn OFF the Convection blowers
and proceed burning on high fire for 1 cycle of 2 hours ONand 2 hours OFF to cure the paint and expel any burn off
odors. Expect some visible smoke and smell during the curing cycle. Open alldoor and windows during initial cure cycle.
Blower Break-in Period:The integrated blowers in this Insert may exhibit some bearing noise and electrical static
noise during the first few hours of operation. This is normal during the break-in period.
Paint Types Approved for Use: Industrial Acrylic Paints, Alkyd based Paints. When selecting Paint for applications
on facings, mantels, corbels or floors within 2 feet in front of a fireplace raised 6” or higher, avoid off the shelf Paints
which may have modifier additives used to increase “hiding” ability and accelerate drying times and curing times. Consult
with a reputable Paints and Sealants supplier and acquire Industrial Acrylic Paints or Alkyd based Paints.
Sealant Types Approved For Use: Heat resistant polyurethane sealants which are not damaged by prolonged
exposure to raised temperatures. Many areflame resistant, meaning that they resist ignition when exposed to high
temperatures and can insulate the substrate and delay damage to it. When selecting polyurethane for applications on
facings, mantels, corbels or floors within 3 feet in front of a fireplace, avoid off the shelf urethane Sealants which may have
modifier additives used to accelerate drying times and curing times. Consult with a reputable Paints and Sealants supplier
and acquire Heat Resistant Polyurethane Sealants.
Additional Application Cautions: If wood used around or in front of the fireplace has been chemically cleaned or
bleached prior to staining or painting, it isof the utmost importance to make certain that the cleaner or bleach does not
remain in the wood substrate under the final paint or sealant applied. Ifanycleaner or bleach remain within the wood
structure, application of heat from the fireplace, even low level heat, will cause the cleaner or bleach compounds toex-
pand or evaporate causing separation of the paint or sealant from the wood surface and may cause peeling or bubbling of
the paint or sealant.
Moisture Content of the wood substrate is also of critical importance. High moisture content wood when heated will yield
evaporation of the moisture and hydraulic pressure under the paint or sealants which can lead to peeling or bubbling. Al-
ways select the lowest moisture content wood substrate. Store the wood substrate in an environment with 60-75 degrees
Fand 35-55% relative humidity levels for a minimum of 48 hours before applying the Paint or Sealant.
WARNING
FIRE RISK- ODOR RISK
•Install appliance only in an existing Masonry Wood Burning Fireplace or a Factory Built ZC Wood Burning Fire-
place.
•An R-1 Rated Hearth Protection Pad [1-1/2” Thick Maximum] is required unless this fireplace is elevated at least
6” above floor level of the room. For every 1” this fireplace is elevated, you may reduce the hearth pad depth by
2”. If this fireplace is elevated 6” or higher no hearth protection pad is required.
•Locate and install appliance to all clearance specifications in manual.
•Verify glass gasket seal before firing unit the first time. Verify proper latching of glass frame onto unit body.
PAGE 7

SPECIFICATIONS
General Specifications
This Mendota insert must be installed in an existing Masonry Wood Burning Fireplace or a Factory Built ZC Wood Burning
Fireplace. This Mendota insert must be installed and serviced by a Mendota approved technician.
MINIMUM FIREPLACE CAVITY SIZE REQUIREMENT:33-1/8” WIDE X 24-1/4” HIGH X 17-3/4”DEEP
ELECTRICAL REQUIREMENTS: 120 Volts AC, 1.5 Amps (minimum line voltage allowed 110 Volts AC)
REQUIRED GAS SUPPLY PRESSURE: NAT. GAS: 7" W.C. [5.0" W.C. MIN., 11" W.C. MAX.]
L.P. GAS: 11" W.C. [11" W.C. MIN., 13" W.C. MAX.]
LP GAS CONVERSION KIT: This insert comes configured for use with Natural Gas.
To convert the insert for use with LP Gas install: LP GAS CONVERSION KIT HA-58-00410.
High Fire Low Fire
BTUH .......................... NAT. GAS 29,000 18,000
BTUH .......................... L.P. GAS 29,000 22,000
ORIFICE SIZE………… #38 NAT. [#52LP]
P.4 EFFICIENCY ..........78% NAT. GAS 80% LP GAS
FLUE VENTING............CO-LINEAR - 4” DIAMETER EXHAUST & 3” DIAMETER INLET
APPROVED VENTS
•Duravent brand Insert Vent Kits with 3” X 4” Liners and Vent Cap
•Duravent brand 3” X 4” Liners, 3” X 4” to 4” X 6-5/8” Coaxial Chimney Top Adapter and High Wind Cap
•ICC brand EXELDirect 3” X 4” Liners and Vent Cap
•BDM brand 3” X 4” Liners and Vent Cap
•RLH brand 3” X 4” Liners and Homestyle Series Co-Linear Insert Caps models HS-C43 (4X3)
NET WEIGHT................195 lbs.
SAFETY SCREEN: A safety screen that has been certified for use with this insert must be installed on the insert when it
is in use. The safety screen will prevent accidental contact with the glass door face, which could re-
sult in a severe burns.
SAFETY: AGA certified, electronic ignition IPI system activated with thermostatic remote control.
CERTIFIED TO: ANSI Z21.88 / CSA 2.33 – 2014, CGA 2.17
This Mendota Gas Fireplace Insert has been tested and certified by:
Intertek Testing Services
8431 Murphy Drive, Middleton, WI 53562
PAGE 8

Overall Dimensions
35
18
29
19782238
31
12
2514
Minimum Fireplace Width
Required At Rear Wall
3318
Minimum Fireplace Width Required
At Front Opening
13
14
1558
17-3/4"
Minimum Fireplace
Depth Required
14
Surround/Faceplate
Depth
14
17-3/4
Minimum Fireplace
Depth Requirement
R
12
1018
To
Gas Line
y Hole Center
1578
Surround Face to Gas
Line Entry Hole Center
1138
25
18
2414
Minimum Fireplace
Height Required
-A-
-B-
3238
8
14
VISABLE GLASS SIZE: 577 SQ. IN.
ACTUAL GALSS SIZE: 685 SQ. IN.
PAGE 9

Required Clearances
ATTENTION: MIN required WIDTH & DEPTH are dependent
on the type of surround that isused. Flat,1/2" outer edge
returns types & custom surrounds are available.
FV-44i Surrounds Dimensions
A B
Inches mm. Inches mm.
29 736 40 1016
No Trim 31 788 44 1118
33 838 48 1220
36 914 52 1321
Minimum Allowable Fireplace Opening
With 1/2”Outer Edge Return Surround
33-1/8”Wide X 24-1/4”High X 17-1/2”Deep
With Flat Surround
33-1/8”Wide x24-1/4”High x 17-3/4”Deep
NOTE: Min required depth is dependent on the Outer
223825
18
-A-
-B-
16"
8
12" MIN
FROM TOP EDGE OF TOP
CONVECTION AIR OPENING
TO BOTTOM OF 8" DEEP MANTEL
23
12
11
APPROVED
MANTEL
PROFILES
4" NON
COMBUSTIBLE
COMBUSTIBLE MANTEL
HEARTH PROTECTION PAD REQUIRED IF NOT ELEVATED.
FOR EVERY 1-INCH THE UNIT IS ELEVATED, HEARTH
PROTECTION PAD DEPTH MAY BE REDUCED BY 2". IF ELEVATED
6" OR MORE, NO HEARTH PROTECTION PAD IS REQUIRED.
COMBUSTIBLE
MANTEL
3238
18" MIN.
FROM GLASS FRAME EDGE
TO PERPENDICULAR SIDE WALL
25
14
17-3/4"
MINIMUM
FIREPLACE
DEPTH
18
3 7/8 3 7/8
11 3/4
6 1/8
33 1/8
MINIMUM FIREPLACE
WIDTH REQUIRED
Exhaust
AIR INTAKE
PAGE 10

MANTEL INFORMATION
The existing Combustible Mantel must fall within the approved mantel profile chart. Ifit does not,either remove and
relocate the combustible mantel at an approved height or add a 20 gage metal shield underneath the combustible
mantel that extends the full width and depth of the combustible mantel. Provide a 1” active air space between the metal
shield and the bottom surface of the combustible mantel. Use ceramic spacers to create the 1” active air space.
25
18
8
12
11
0
4
5
6
7
8
9
10
11
12
7
6
5
4
3
2
1
0
8
APPROVED
MANTEL
PROFILES
MANTEL DEPTH (IN.)
4" NON
COMBUSTIBLE
ZONE
12 11
10
9
1
2
3
COMBUSTIBLE
MANTEL
HEIGHT ABOVE
NON-COMBUSTIBLE ZONE (IN)
8
Figure 1 - APPROVED MANTEL PROFILE CHART
PAGE 11

HEARTH PROTECTION PAD REQUIREMENTS
In most installations, a 16" non-combustible protector isrequired in front of the unit’s glass door surface on the floor or
raised hearth. This protection must have a minimum total R-value of 1.0. Different noncombustible materials can be
layered to achieve the R-1 value. Refer tothe tables below for R-values ofcommon backing and finishing materials.
Backer Materials R-Ratings Table
R-Values of common Backer Materials
Material
Thickness
R-Value
Note
Mineral Fiber Board ( Backer 160)
1/2"
1.270
Mineral Fiber Board (Backer 300)
1/2"
1.030
Ceramic Board (Rescor 360)
1/2"
1.110
Ceramic Board (Fiberfrax Duraboard LD)
1/2"
1.100
Common Brick
2-1/4"
0.450
Common Brick
4"
0.800
Gypsum or Plaster Board
1/2"
0.450
Cement Board (Durock Next Gen)
1/2"
0.390
Cement Board (Wonderboard)
1/2"
0.260
Cement Board (Hardibacker 500)
1/2"
0.200
Cement Board (Hardibacker)
1/4"
0.130
Finishing Materials R-Ratings Table
R-Values of common Facing Materials
Material
Thickness
R-Value
Cement Mortar
1/2"
0.100
Concrete
1"
0.095
Ceramic Tile
1/4"
0.020
Flagstone
1"
0.079
Granite
1"
0.083
Limestone
1"
0.153
Marble
1"
0.090
Sandstone
1"
0.079
Slate
1"
0.100
PAGE 12

If a raised hearth extends less than 16" infront ofthis Insert,refer to the diagram below and the following procedure
tosee ifadditional floor protection is required.
For installations where the fireplace israised 6" or more above the floor ofthe room, or ifthe existing floor in front of
this Insert isnon-combustible (stone, brick, etc.), a non-combustible protector isnot required.
NOTE: For every 1” this fireplace is raised off the floor, the non-combustible hearth protection pad may be
reduced by 2”.Ifthis fireplace is raised off the floor more than 6”,Nohearth protection pad is required.
16"
NON-COMBUSTIBLE REQUIRED
NON COMBUSTIBLE
SURFACE REQUIRED
NOTE: IF UNIT IS ELEVATED 6" OR MORE
ABOVE ROOM FLOOR LEVEL, NO PROTECTIVE
SURFACE IS REQUIRED AT FLOOR LEVEL.
ELEVATED HEARTH ZC or MASONRY FIREBOX
BOTTOM STRUCTURE
PAGE 13

VENTING REQUIREMENTS
General Venting Requirements
This Insert must be vented vertically to the outside and must use the Mendota Co-Linear flexible ducting system.
Note: Run both the 4” exhaust liner and 3”air intake liner to theVertical Vent Cap. Pack around theliners at
the damper area to create an air tight seal. If existing wood burning vent size istoo small to run both 4” and 3”
liners, consider converting toa coaxial flex system using a 4” exhaust flex and 6” airintake flex with spring
spacers between the two flex pipes.
NOTE:THE INSERT IS DESIGNED, TESTED AND LISTED FOR OPERATION ONLY WITH MENDOTA
INSERT VENTING COMPONENTS AS LISTED IN FIGURES BELOW:
SLIDE-IN ADAPTER
BOOT INCLUDED
WITH INSERT
50-06-00073 CLAMP
4" FLEX PIPE
45-01-00322 CAP
3" FLEX PIPE
45-01-00322 CAP
50-06-00073 CLAMP
50-06-00073 CLAMP
50-06-00073 CLAMP
50-06-00073 CLAMP
35' FLEX VENT
SLIDE-IN ADAPTER BOOT
(INCLUDED W/ INSERT)
NOTE: Mendota recommends that both
exhaust and air intake flex liners be run
all the way to the vent cap. Seals
between flex liners and unit top and vent
cap must be air tight. Use both securing
screws and hose clamps at all four flex
connection points.
PAGE 14

Venting Installation Instructions
CAUTION: Each installation must conform to all local, state and national codes. Refer to the national fuel gas code and
local zoning and code authorities for details on installation requirements. The Mendota Inserts must be vented to the
outside in accordance with the latest edition of the National Fuel Gas Code. In the absence of local codes, the
installation must conform with National Fuel Gas Code ANSI Z223.1 (NFPA 54), or Canadian Code CAN1-B149 or most
current edition, also known as NFPA 54. Do not connect this Insert to a chimney flue serving a separate solid fuel or gas-
burning appliance.
1. Remove glass doors, metal fire screens, etc. from existing fireplace. Be sure there is 12" minimum distance
from top of upper grill to bottom of mantel and a 16" minimum non-combustible hearth extension in front of the
glass surface if a raised hearth is not supplied..
2. Remove any additional framework or other obstructions in the existing fireplace opening and burning area.
Also remove any chimney cap from top of chimney so that vent liner can be installed freely.
3. Before Insert is installed, have gas supplier or contractor run gas line to the existing fireplace. Be sure gas
plumbing instructions are carefully followed. Gas supply may enter fireplace on the left side or back left side of
fireplace, whichever is most convenient and accessible. Electrical service (120 volt) should also be supplied to
the right side of the appliance.
4. The entire chimney should be swept to remove creosote, soot and any obstructions (bird nests, etc.).
5. Open fireplace damper. If damper opening is large enough to accept the 4" and 3" flue liners, permanently
secure damper in "open" position. NOTE: Massachusetts requires that the flue damper must be removed or
permanently welded in the "open" position.
6. If damper opening is too small for the 4" & 3" flue liners, it will be necessary to remove the damper handle and the
damper plate. Some damper plates are held in place by a pinned hinge that can be released easily by tapping
out the pin with a hammer and punch. Others may be held in place by a screw or bolt, or pivots may be cast into
the damper housing. The latter types may be harder to get out and may require sawing or breaking out. [NOTE:
if flue size is 6" (127 mm) or less, or if severe offsets occur, or a significant mortar slop is evident between the
liners, try to snake liner down the chimney to the top of the damper housing before breaking out damper plate and
housing.]
CAUTION: If the 4" & 3" flue liners cannot be installed in an extremely tight chimney DO NOT proceed with
installation.
7. If damper opening is narrower than 4-1/2" to 5" (114 mm to 127 mm) and if local code authorities allow, loosen
and remove mortar behind back side of damper housing in the center of the opening enough to get the gripping
teeth of a pipe wrench over the flange of the damper housing ( for cast iron housings). Tighten the wrench
snugly, and kick down on the wrench handle to break out a half moon shaped piece of the damper housing,
enough to easily fit the flex liner through it. If the opening is wide enough, the break out is not necessary.
8. Install Insert only in chimney heights of 10' (minimum) to 70' (maximum) -- as measured in step 9, see next
page.
9. Measure the chimney height from the top of the chimney (or the existing flue liner) to a point 24" (610 mm) above
the floor of the fireplace hearth. It may be necessary to drop a rope and measure the rope itself. Be sure to allow
for all offsets in existing chimney. Cut the 4" diameter flex liner (s) to this measured length.
10. Attach a sheet metal strap loop to the flex end of the liner(s) and tie a rope to it. Two installers should proceed to
the roof and drop the rope (with weight on the end to make sure it goes all the way down) and insert the 4”
liner(s) past the flexible portion, into the existing chimney – SEE NEXT PAGE:
11. One installer should then return to the fireplace opening and pull the rope to guide the liner(s) into place through
the smoke shelf and the damper opening to a point 22" (560 mm) above the fireplace hearth. The person below
should wear leather gloves and Safety Glasses during this process to avoid being cut and to safeguard eyes from
flying debris.
CAUTION: WHEN USING FLEX ALUMINUM LINER, USEEXTREME CAUTION WHEN STRETCHING LINER
AROUNDOFFSETS SO AS NOT TO RUPTURE LINER.
PAGE 15

12. Remove the Vent Adapter by unlatching spring loaded
lever from front of the unit
13. Tightly secure 3” and 4” flex vents with clamps
provided. Seal vent cap/flashing to top of chimney with
weatherproof sealer. Seal areas between flex pipes
and existing chimney, at damper area, with unfaced
fiberglass insulation.
14. Carefully slide Insert into the fireplace opening (Note:
Plug in the AC Power cord to a 110 volt AC receptacle
inside the fireplace opening or extend it out and
connect to a grounded wall outlet.
15. Slide Vent Adapter forward between guide rails. Vent
Adapter’s front flat section should contact insert top as
you slide the Vent Adapter forward.
16. Use Spring loaded lever to pull Vent Adapter back into
place on the unit and then latch it to front of unit.
17. You are now ready to hook up the Insert to gas supply.
Be sure gas plumbing instructions and all state and
local codes have been carefully followed. Be sure all
items on Installation Check-Off List have been
completed.
NOTE: AGA APPROVED FLEX LINES ARE APPROVED FOR USE WITH MENDOTA INSERTS.
18. Carefully slide the Insert into place in the fireplace opening. At this time, check that Insert is level and plumb with the fireplace
opening and positioned in the middle of the opening. If Insert is unsteady or needs leveling, the unit may need to be “shimmed
with washers under the bottom corners of insert.
19. The proper Insert Faceplate can now be placed in position. Assemble surround by following instructions supplied with
faceplate kit. Select the appropriate size of faceplate to cover the area between the Insert and existing fireplace opening.
IMPORTANT
INSTALLATION, SERVICING AND REPAIR MUST BE DONE BY A QUALIFIED SERVICE PERSON. THE INSERT SHOULD BE
INSPECTED AT LEAST ANNUALLY BY A PROFESSIONAL SERVICE PERSON. MORE FREQUENT CLEANING MAY BE
REQUIRED DUE TO EXCESSIVE LINT DEPOSITS FROM CARPETING, BEDDING MATERIAL, ETC. IT IS IMPERATIVE THAT THE
CONTROL COMPARTMENT BURNERS AND CIRCULATING AIR PASSAGEWAYS OF THE INSERT BE KEPT CLEAN.
3x3 VENT
ADAPTER
20"-24"
Existing
Fireplace Liner
Approved Flue Liner
Approved Flue Liner
Sheet Metal
Strap Loop
Rope
Weight Rope
PAGE 16