LO-RIDER
UNVENTED
VENT -FREE FIREBOXES
INST ALLATION AND OPERA TING
INSTRUCTIONS
MODELS:
LCUF32-F
LCUF32-R
LCUF36C-R
For use with a listed gas-fired
unvented decorative room heater
not to exceed 40,000 BTU/hr. Do
not build a wood fi re.
Carefully review the instructions
supplied with the decorative type
unvented room heater for the minimum fi replace size requirement.
DO NOT INST ALL AN APPLIANCE
IN THIS FIREBOX UNLESS THIS
FIREBOX MEETS THE MINIMUM
DIMENSIONS REQUIRED FOR
THE INSTALLATION.
If the information in this manual is not followed
exactly, a fire or explosion may result causing
If the information in this manual is not followed exactly ,
property damage, personal injury or loss of life.
a fi re or explosion may result causing property damage,
personal injury or loss of life.
– Do not store or use gasoline or other fl ammable
vapors and liquids in the vicinity of this or any
– Do not store or use gasoline or other fl ammable
other appliance.
vapors and liquids in the vicinity of this or any other
appliance.
– WHAT TO DO IF YOU SMELL GAS
– WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
• Do not touch any electrical switch; do not use any
any phone in your building.
phone in your building.
• Immediately call your gas supplier from a
• Immediately call your gas supplier from a neighbor's
neighbor's phone. Follow the gas supplier's
phone. Follow the gas supplier's instructions.
instructions.
• If you cannot reach your gas supplier, call the fi re
• If you cannot reach your gas supplier, call the
department.
fi re department.
– Installation and service must be performed by
– Installation and service must be performed by
a qualified installer, service agency or the gas
a qualifi ed installer, service agency or the gas
supplier.
supplier.
WARNINGS
WARNINGS
WARNINGS
READ AND SAVE THESE INSTRUCTIONS
CONTENTS
Important Safety Information ................................. 3
Product Features ......................................................5
Before You Start .....................................................5
General Installation Information .............................6
Firebox External Dimensions .................................6
Minimum Hearth Dimensions .................................7
Location of Firebox ..................................................7
Clearances and Height Requirements ....................8
Firebox Framing .....................................................10
Gas Line Installation ..............................................12
Canopy Installation ................................................13
Optional Equipment ...............................................14
Illustrated Parts Breakdown ..................................14
Using Optional Outside Air Kit ..............................15
Warranty ..................................................Back Cover
2 26D4721
IMPORTANT SAFETY INFORMATION
INSTALLER
Please leave these instructions with the appliance.
IMPORTANT
Read these instructions carefully before installing or trying to operate a vent-free gas heater in this fi rebox.
• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fi re,
burns, explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the fi replace. Avoid any drafts that alter burner
fl ame patterns.
WARNING
• Do not use a blower insert, heat exchanger insert or other accessory , not approved for
use with this heater where applicable.
1. Due to high temperatures, the appliance should
be located out of traffic and away from furniture
and draperies.
2. Children and adults should be alerted to the hazard
of high surface temperature and should stay away
to avoid burns or clothing ignition.
3. Young children should be carefully supervised
when they are in the same room with the appliance.
4. Do not place clothing or other flammable material
on or near the appliance.
5. Any safety screen or guard removed for servicing
an appliance, must be replaced prior to operating
the heater.
6. Installation and repair should be done by a qualified
service person.
7. To prevent malfunction and/or sooting, an unvented
gas heater should be cleaned before use 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 control compartments, burners and
circulating air passageways be kept clean.
8. CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the flu with
headaches, dizziness and/or nausea. If you have these
signs, obtain fresh air immediately. Have the heater
serviced as it may not be operating properly.
OWNER
Please retain these instructions for future reference
9. The installation must conform with local codes or, in
the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.l/NFPA54.
10. This unit complies with ANSI Z21.91 ventless firebox
enclosures for gas-fired unvented decorative room
heaters.
11. Do not install heater in a bathroom or bedroom.
12. Correct installation of the logs, proper location of the
heater, and annual cleaning are necessary to avoid
potential problems with sooting. Sooting, resulting from
improper installation or operation, can settle on surfaces
outside the fireplace. See log placement instructions for
proper installation.
13. Avoid any drafts that alter burner flame patterns. Do not
allow fans to blow directly into fireplace. Do not place
a blower inside burn area of firebox. Ceiling fans may
create drafts that alter burner flame patterns. Sooting
and improper burning will occur.
14. Caution: Candles, incense, oil lamps, etc. produce
combustion byproducts including soot. Vent-free appliances will not filter or clean soot produced by these types
of products. In addition, the smoke and/or aromatics
(scents) may be reburnt in the vent-free appliance which
can produce odors. It is recommended to minimize the
use of candles, incense, etc. while the vent-free appliance
is in operation.
15. An unvented gas-fired heater uses air (oxygen) from the
room in which it is installed. Provisions for adequate
combustion and ventilation air must be provided. See
installation guidelines.
Continued on page 4
.
26D4721 3
IMPORTANT SAFETY INFORMATION
Continued from page 3
16. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and liquids.
17. Unvented gas heaters are a supplemental zone heater.
They are not intended to be a primary heating appliance.
18. Unvented gas heaters emit moisture into the living area.
In most homes of average construction, this does not pose
a problem. In houses of extremely tight construction,
additional mechanical ventilation is recommended.
19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, films or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
as they are burned off during the initial operation of the
appliance; possibly causing headaches, or eye or lung
irritation. This is a normal and temporary occurrence.
The initial break-in operation should last two to three
hours with the burner at the highest setting. Provide
maximum ventilation by opening windows or doors to
allow odors to dissipate. Any odors remaining after this
initial break-in period will be slight and will disappear
with continued use.
20. Input ratings are shown in BTU per hour and are for
elevations up to 2,000 feet. For elevations above 2,000
feet, input ratings should be reduced 4 percent for each
1,000 feet above sea level. Refer to the National Fuel
Gas Code.
24. Never burn solid fuels in a fireplace where a unvented
room heater is installed.
25. Always have a fireplace screen in place when the appliance is in operation, and unless other provisions for
combustion air are provided, the screen shall have an
opening(s) for induction of combustion air.
26. Do not fill spaces around the firebox with insulation or
other materials. These spaces must be maintained to prevent the firebox from coming in contact with combustible
materials.
We suggest that our gas hearth
products be installed and
serviced by professionals who
are certifi ed in the U.S. by the
National Fireplace Institute
(NFI) as Gas Specialists.
www.nfi certifi ed.org
®
Never connect unit to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
WARNING
21. The appliance and its appliance main gas 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).
22. The appliance must be isolated from the gas supply
piping system by closing its equipment shutoff 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).
23. Do not use this room heater if any part has been under
water. Immediately call a qualified service technician
to inspect the room heater and to replace any part of the
control system and any gas control which has been under
water.
4 26D4721
PRODUCT FEATURES
Do not attempt to burn solid wood fuels, vented gas log sets, or any other combustible
in this unvented fi rebox. Also, do not install a vent-free gas log set in this fi rebox if
the minimum clearance and height requirements of the log set are too large for the
fi rebox.
WARNING
The LCUF32-F and LCUF36C-R are vent-free fireboxes. They feature a self contained heat-circulating system. This installation manual will enable you to obtain a safe, efficient and dependable installation of your vent-free firebox system.
Do not alter or modify the firebox or its components under any circumstances. Any modification or alteration of the firebox
system, including but not limited to the firebox and accessories, may void the warranty, listings and approvals of this system
and could result in an unsafe and potentially dangerous installation.
BEFORE YOU ST ART
Carefully inspect the contents for shipping damage. If any parts are missing or damaged, immediately inform the dealer
from whom you purchased the appliance. Do not attempt to install any part of the appliance unless you have all the parts in
good condition.
MAKE SURE YOU HAVE RECEIVED ALL PARTS
Check your packing list to verify that all listed parts have been received. You should have the following:
1. Vent-Free Gas Firebox 3. Installation and Operating Instructions
2. Canopy 4. Five (5) sheet metal screws for canopy
WHAT YOU WILL NEED FOR INSTALLATION
TOOLS BUILDING SUPPLIES
• Phillips screwdriver • Square • Framing materials
• Hammer •
• Saw and / or sabersaw • Tee joint • Caulking material (noncombustible)
• Level • Pipe wrench • Fireplace surround materials (noncombustible)
• Measuring tape • Pliers
• Electric drill and bits • Pipe sealant approved for use with propane/L.P.G. (resistant to sulfur compounds)
Refer to the installation instructions provided with the log sets for items required for log set installation.
Piping complying with local codes
• Wall finishing materials
Illustrations shown in this manual refl ect “typical” installations with nominal dimensions
and are for design and framing reference only. Actual installations may vary due to
individual design preferences. However, always maintain minimum clearances to
combustible materials and do not violate any specifi c installation requirements.
NOTICE
26D4721 5
GENERAL INSTALLATION INFORMATION
In planning the installation for the appliance it is necessary to determine where the unit is to be installed and whether optional
accessories are desired. Gas supply piping should also be planned. The following steps represent the normal sequence of
installation. Each installation is unique, however, and might require a different sequence.
1. Position firebox prior to framing or into prepared framing.
2. Plumb gas line. (Gas connections should only be performed by an experienced, licensed/certified tradesman).
3. Install vent-free gas log heater per the instructions provided with the vent-free gas log heater.
4. Complete finish wall material, surround and optional hearth extension to your individual taste.
FIREBOX EXTERNAL DIMENSIONS
D
F
E
H
A
I
LCUF32-F
LCUF36C-R
A 37" 41"
B 32" 36"
C 16" 18"
D 28⅞" 32"
E 18⅝" 20½"
F 23¼" 27¼"
G 28½" 30¼"
H 29⅞" 33⅞"
I 5⅜" 5⅜"
J 28⅜" 31¼"
K 1" 1"
L 34⅜" 37⅜"
M 7
3
/16" 9¾"
C
J
2.50"
K
B
2.50"
G
2.75"
M
Figure 1 - Firebox Dimensions
6 26D4721
L
GENERAL INSTALLATION INFORMATION AND LOCATION OF FIREBOX
MINIMUM HEARTH DIMENSIONS
LCUF32-F
A 22⅜" 25⅞"
B 12¾" 15"
C 28⅝" 32½"
D 28" 30¼"
E 23¼" 25⅝"
LCUF36C-R
LOCATION OF FIREBOX
Carefully select the best location for installation of your
vent-free firebox. The following factors should be taken
into consideration:
• Clearance to side wall, ceiling, woodwork and
windows. See “Clearances/Height Requirements” on
page 8. Minimum clearances to combustibles must
be maintained.
Figure 2 - Minimum Hearth Dimensions
• Location must not be affected by drafts caused by
kitchen exhaust fans, ceiling fans, return air registers
for forced air furnaces / air conditioners, windows
or doors.
• Installation must provide adequate ventilation and
combustion air.
• DO NOT INSTALL THIS FIREBOX IN A
BEDROOM OR BATHROOM.
• Location should be out of high traffic or windy or
Figure 3 - Location of Firebox
drafty areas.
• DO NOT INSTALL WHERE CURTAINS, FURNITURE, CLOTHING OR OTHER FLAMMABLE OBJECTS
ARE LESS THAN 42" FROM FRONT OF HEATER.
• Never obstruct the front opening of the vent-free firebox or restrict the flow of combustion and ventilation air.
• Minimize modifications to existing construction. Refer to Figure 3 below for location suggestions.
• Do not install in the vicinity where gasoline or other flammable liquids may be stored. The vent-free firebox must be
kept clear and free from these combustible materials.
26D4721 7
CLEARANCES AND HEIGHT REQUIREMENTS
Ensure that minimum clearances shown in Figures 4 through 7 are
maintained. Left and right clearances are determined when facing the
front of the firebox.
Follow these instructions carefully to ensure safe installation. Failure to
follow these requirements may create a fire hazard.
1. Sidewall clearances: The clearance from the inside of the appliance
to any combustible wall should not be less than 6". See Figure 4.
6"
Minimum
42"
Minimum
2. Ceiling clearance: The ceiling must be at least 42” from the top of
the firebox opening. See Figure 4.
6"
Minimum
3. Back wall clearance: The appliance may be placed against a com-
bustible back wall.
Figure 4 - Clearance and Height
Requirements
4. Floor clearance: This inner chamber firebox floor must be installed at least 1" above any combustible flooring mate-
rial, such as carpeting or asphalt tile, which is closer than 14" to the base of the firebox. See Figure 5.
Or
The inner chamber firebox floor may be installed nearer to the floor if a minimum of 14" of noncombustible material
such as slate or marble is installed between the base of the firebox and the combustible flooring. See Figure 6.
Combustible
Material
1" minimum for
LCUF32 and 36
Can be less than 1"
for LCUF32 and 36
Non-Combustible
Material
14" Minimum
Figure 5 - Minimum Clearance above
Combustible Flooring
Figure 6 - Minimum Clearance above Combustible
Flooring with Non-Combustible Material Installed at
Base of Fireplace
8 26D4721
CLEARANCES AND HEIGHT REQUIREMENTS
5. Mantel clearances: The canopy supplied with the unit must be installed. If a combustible mantel is installed, it must
meet the clearance requirements as shown in Figure 7A. However, if lower mantel height is desired, see page 14
and Figure 7B for canopy options.
12"
Combustible material
can contact top of
fi replace.
Figure 7A - Mantel Clearances Figure 7B - Mantel Clearances for Wide Profi le
6"
21/2"
10"
8"
23"
21"
19"
16"
12"
Non-combustible
material only if
needed to cover
radiant top face above
Canopy Only
FIREPLACE
HOOD
TOP VIEW
Figure 8- Mantel Clearances
WALL
COMBUSTIBLE
MATERIAL AREA
26D4721 9
FIREBOX FRAMING
Firebox framing can be built before or after the appliance is set in place. Construct fi rebox framing following Figures 9
through 12 and the chart below for your specifi c installation requirements. See Figure 1 on Page 6 for fi rebox dimensions.
The framing headers may rest on the top of the fi rebox standoffs.
The fi rebox may be installed directly on a combustible fl oor or raised on a platform of an appropriate height. When the
fi rebox is installed directly on carpeting, tile, or other combustible material, other than wood fl ooring, the fi rebox shall be
installed on a metal or wood panel extending the full width and depth of the enclosure.
The classifi cation "noncombustible material" includes, but is not limited to: stone, brick, and mortar. Noncombustibles are
safe to overlay the black-painted metal face, including radiant plates, and do not pose a fi re hazard. Any noncombustible
fi nish material must not extend past or interfere with the fi replace opening.
The classifi cation "combustible material" incudes, but is not limited to: plywood, drywall, and particle board. Combustible
materials may contact the sides, bottom, or back of the fi rebox. Do not overlay the black painted face with combustible
matierals.
Do not fi ll spaces around fi rebox with insulation or other materials. This could cause
a fi re.
WARNING
D
H
C
A
E
Figure 9 - Corner Installation
LCUF32-F
A 37" 41¼"
B 34½" 37¾"
C 29" 32"
D 14⅞" 16⅜"
E 61¾" 68⅞"
F 30⅞" 34½"
G 16" 18"
H 43¾" 48¾"
B
F
G
LCUF36C-R
C
A
1
Figure 10 - Inside Chase Installation
C
G
/2"or5/8"
G
A
Figure 11 - Stud Location
10 26D4721
Figure 12 - Recessed Installation
A
½" or ⅝"
When finishing a custom cabinet, mantel, or other built-in enclosure, the opening size to accommodate the fireplace with trim installed is as follows:
LCUF32-F with trim LCUF36C-R with trim
K 37¾" 41¾"
J 35⅜" 38⅞"
This appliance is approved for the installation of drywall or other combustible
materials against the sides or top of the black-painted firebox face.
Noncombustible facings will not burn when exposed to heat coming off this
fireplace. The classification, “Noncombustible material” includes brick and
mortar, stone or marble. These are safe to overlay the black-painted metal face
and do not pose a fire hazard. Never overlap the firelace opening.
The fi replace must be installed giving
full consideration to the clearance and
height requirements identifi ed in this
manual.
WARNING
FIREBOX FRAMING
K
J
Figure 13 - Custom Cabinet
1. Bend out the nailing flanges located on each side of the firebox.
2. Slide the firebox into prepared framing or position firebox in its final position and frame later.
3. Level the firebox by checking the top edge of the firebox. Shim if necessary.
4. Anchor firebox to the side framing members using 8d nails or other suitable fasteners. See Figure 14.
5. The canopy must be installed for safe operation of the heater. See page 13 for canopy installation details.
Nail Sides
Through Nailing
Flanges
Figure 14 - Location of Nailing Flanges
26D4721 11
GAS LINE INSTALLATION
Plumbing connections should only be performed by a qualified, licensed plumber. Main
gas supply must be off when plumbing gas line to fireplace or performing service.
WARNING
Consult all local codes. All gas piping must be installed to comply with local codes, or in the absence of local codes, with
the latest edition of the National Fuel Gas Code ANSI Z223.1/NFPA54.
1
/2" gas line may enter either from the left side or right side of the firebox. Gas access holes are provided on both sides
The
of the firebox.
1
A listed manual shutoff valve must be installed upstream of the appliance. A union tee and plugged
ping point should be installed upstream of hte appliance.
IMPORTANT: Install main gas valve (equipment shutoff valve) in an accessible location. The main gas valve is for turning
on or shutting off the gas to the fireplace.
A sediment trap may be upstream of the heater to prevent moisture and contaminants from passing through trap to the heater
controls and burners. Failure to do so could prevent the heater from operating reliably. Consult applicable codes.
An external regulator must be used on all propane/L.P.G. heaters, in addition to the regulator fitted to the heater, to reduce
the supply tank pressure to 13" w.c. (maximum). Any copper tubing used to supply propane / L.P.G. from the tank must be
internally tinned.
/8" NPT pressure tap-
Note: When connecting propane / L.P.G. vent-free room heaters, you must use pipe sealant resistant to
propane / L.P.G.
Important: Hold heater regulator with a wrench to prevent movement when connecting to inlet piping.
Check gas type: The gas supply must be the same as stated on the heater’s rating plate. If the gas supply
is different, DO NOT INSTALL THE HEATER. Contact your dealer for the correct model.
Connecting directly to an unregulated
propane / L.P.G. tank can cause an
explosion.
WARNING
After completing connection, test all gas joints from the gas meter to the gas heater regulator for leaks. Using soap and
water solution or a gas sniffer. DO NOT USE AN OPEN FLAME.
Do not connect directly to natural gas 1/2 PSI or 2 PSI systems. Always make sure
natural gas pressure is regulated 10.5 w.c. (maximum before operating the unit).
WARNING
12 26D4721
CANOPY INSTALLATION
INSTALLING CANOPY
A canopy is furnished with each firebox and MUST be installed for safe operation. See Figure 15.
The firebox canopy must not be
modifi ed or replaced with a canopy
that may be provided with the unvented
decorative room heater.
WARNING
1. Remove the three (3) screws from the top front frame assembly. Also remove the two (2) screws on the side frames.
See Figure 15.
2. Align the canopy with the holes in the top frame.
3. Replace the screws previously removed.
4. Tighten side screws. Make sure the canopy is level and
secure.
Close fi replace screen panel before
operating a decorative type unvented
room heater.
WARNING
Figure 15 - Installing Canopy
26D4721 13
OPTIONAL EQUIPMENT AND ILLUSTRATED PARTS LIST
OPTIONAL WIDE CANOPY
The optional wide canopy can be installed. See installation instructions provided with kit.
ITEM DESCRIPTION QTY LCUF32-F LCUF32-R LCUF36C-R
1 Canopy 1 71D0023 71D0023 71D0500
2 Screen Panel 2 070942 070942 26D4563
3 Screen Rod 2 26D0138 26D0138 26D0132K
ACCESSORIES IN KITS
1 Standard Brass Canopy 1 BRCU32 BRCU32 BRCU36
1 Wide Brass Canopy 1 BRC32 BRC32 BRC36
4 Brass Trim Curved Design 1 BRTK32C BRTK32C BRTKM36C
4 Pewter Trim Curved Design 1 PWTK32C PWTK32C PWTKM36C
4
5 Outside Air Kit* 1 AK-4 AK-4 AK-4
*Not illustrated, see following page.
Black Trim Curved Design
1 BLTK32C BLTK32C BLTM36C
4
1
3
2
14 26D4721
USING OPTIONAL AK-4 OUTSIDE AIR KIT
COMBUSTION AIR
1. Locate combustion air assembly at an exterior location which is not likely to be accidentally blocked in any manner.
Locate assembly a minimum of 12" above the snow line to prevent blockage by snow accumulation.
2. Never mount the combustion air inlet assembly in a garage or storage area where combustible fumes such as gasoline
might be drawn into the fi replace.
3. Combustion air can be drawn from the crawl space under a house when an adequate supply of air is provided by open
ventilation.
4. CAUTION: Do not take combustion air from attic space or garage space.
5. Locate air supply inlet at least 3' away from any appliance vent terminal.
6. Avoid extremely long runs and numerous turns in the duct leading from the fi replace to the combustion air assembly.
These conditions increase the resistance to the free fl ow of air through the duct. See Figures 16 through 19 for methods
of installing the outside air for combustion assemblies.
Note: Fireplace model in illustrations may not be representative of your appliance.
Basement
Above
Wall
Snow
Level
Inlet Grill in
8'max.
Soffi t
(Overhang)
Ground
Level
Figure 16 - Basement Installation
Duct Extended
to Miss Joist
To Outside Wall
Figure 18 - Installation Above Basement or
Crawl Space
Figure 17 - Concrete Slab Installation
(Optional Outside Air Runs)
Inside Wall
Outside
Wall
Figure 19 - 45° Corner Installation on
Slab Floor
26D4721 15
USING OPTIONAL AK-4 OUTSIDE AIR KIT
The use of outside air for combustion is optional unless required by building codes. It is only necessary to supply outside
combustion air to one side of the fi replace. Use the model AK4 combustion air kit.
MODEL AK-4 COMBUSTION AIR ASSEMBL Y
1. Remove the cover plate from the 4" outlet opening location on the left or
right outside of the fi replace.
2. Place the insulation ring between the AK-4 starting collar and fireplace wall.
3. Place the starting collar (4") into the hole on the side of fi replace. Fasten it in place with the four sheet metal screws
provided. See Figures 20 and 21.
Note: The air starting collar extends through the fi replace outer wrap. When the air starting collar is
securely attached, it will form a seal against the fi replace wall.
4. Attach outside duct to starting collar with duct clamp or screws. See Figure 21.
DO NOT remove the
cover if the outside air
will not be connected.
WARNING
Left Side of
Fireplace
Shorter End
of Air Starting
Figure 20 - Attaching Outside Air Starting Collar
and Insulation Ring to Left Side of Fireplace
5. Cut a 6-inch diameter opening for model AK-4 in the outside
wall covering where the outside vent is to be located. See
Figure 22.
6. Select and cut a piece of duct long enough to attach to the
fi replace and stick out at least 3" beyond the face of the wall
to which the AK-4 inlet air vent will be attached. See Figur e
21.
Insulation Ring
AK-4 Starting
Collar
Sheet
Meal
Screws
Collar
6" Diameter
Hole
Duct
Extending
3"min.
Screws
Left Side of
Fireplace
Figure 21 - Attaching Outside Duct
to Starting Collar
Air Starting
Collar
Screw
Duct
Nail
Holes
Use FP-4 U duct for maximum effi ciency
and safety. Do not use a combustible
duct. Always use UL Listed Class 0 or
1 duct material.
WARNING
16 26D4721
Figure 22 - Combustion Air Assembly for
AK-4 Inlet
Air Vent
Model No. AK-4
Screws
Continued
USING OPTIONAL AK-4 OUTSIDE AIR KIT
MODEL AK-4 COMBUSTION AIR ASSEMBL Y (CONTINUED)
7. If the duct is the insulated type, push the insulation back from one end of
the duct approximately 2". See Figure 23.
8. Slip the exposed end of the duct over the starting collar on the fi replace.
9. Using the sheet metal screws provided, secure the duct end to the collar
attached to the fi replace.
Duct
Connector
Approximately
2"
10. Nail or screw the combustion air assembly to the surface of the wall.
Note: If the wall covering is brick or stone, use appropriate
masonry fasteners. If necessary, splice the duct. Use a model
403-duct connector to splice duct sections.
INSTALLING MODEL 403 DUCT CONNECTOR
1. Push insulation back approximately 2" from the end of each duct.
2. Slip each duct over duct connector until an equal length of connector extends into each duct.
3. Place duct clamp over the end of each duct. Tighten duct clamp down snuggly.
4. Push insulation back into place and over duct clamp.
Figure 23 - Installing Duct
Connector 403
Insulation
Duct Clamp
26D4721 17
MONESSEN HEARTH SYSTEMS
LIMITED LIFETIME WARRANTY POLICY
The following components are warranted for life to the original owner, subject of proof of purchase: Firebox,
Combustion Chamber, Heat Exchanger, Grate, and Stainless Steel Burners.
FIVE YEAR WARRANTY
The following components are warranted for 5 years to the original owner, subject of proof of purchase: Vent Free
Ceramic Fiber Logs, Catalytic Filter and Aluminized Burners.
BASIC WARRANTY
Monessen Hearth Systems (MHS) warrants the components and materials in your gas appliance to be free from
manufacturing and material defects for a period of two years from date of installation. After installation, if any of
the components manufactured by MHS in the appliance are found to be defective in materials or workmanship,
MHS will, at its option, replace or repair the defective components at no charge to the original owner. MHS will
also pay for reasonable labor costs incurred in replacing or repairing such components for a period of two years
from the date of installation. Any products presented for warranty repair must be accompanied by a dated proof
of purchase.
This Limited Lifetime Warranty will be void if the appliance is not installed by a qualified installer in accordance
with the installation instructions. The Limited Lifetime Warranty will also be void if the appliance is not operated
and maintained according to the operating instructions supplied with the appliance, and does not extend to (1)
firebox/burner assembly damage by accident, neglect, misuse, abuse, alteration, negligence of others, including
the installation thereof by unqualified installers, (2) the costs of removal, reinstallation or transportation of
defective parts on the appliance, or (3) incidental or consequential damage. All service work must be performed
by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability
of fitness for purpose and of all other obligations or liabilities. Monessen Hearth Systems, Inc. does not
assume for it any other obligations or liability in connection with the sale or use of the appliance. In states
that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect
damage, those limitations of exclusions may not apply to you. You may also have additional rights not covered
in this Limited Lifetime Warranty.
MHS reserves the right to investigate any and all claims against the Limited Lifetime Warranty and decide
upon method of settlement.
For information about this warranty, contact:
Technical Services
Monessen Hearth Systems
149 Cleveland Drive
Paris, Kentucky 40361
MAY 2008 P/N 26D4721 • Rev. 10
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