UNVENTED (VENT-FREE)
32" UNIVERSAL FIREBOX
OWNER’S OPERATION AND INSTALLATION MANUAL
UV32C (shown)
and NLUV32C
Circulating
Louvered;
RUV32 and
NLRUV32
Noncirculating
Smooth Face
Models
®
WARNING: If the information in this manual is not followed
exactly, a fire or explosion may result causing property
damage, personal injury, or loss of life.
— 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.
This firebox may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer (i.e. Installation of this product is
permitted after the manufactured (mobile) home is sited).
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause
injury or property damage. Refer to this manual for correct
installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or
the gas supplier.
WARNING: For use only with
decorative type unvented room
heaters. Do not build a wood fire.
This firebox has been tested and
approved by I.A.S. under their
REQ. 2-97 for use with any ANS
Z21.11.2 approved gas logs.
Save this manual for future reference.
FIREPLACE MANUFACTURERS INC.
UNVENTED 32" FIREBOX
SAFETY
INFORMATION
WARNINGS
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate, or service this firebox. Improper use of this firebox can cause
serious injury or death from burns,
fire, explosion, electrical shock, or
carbon monoxide poisoning.
CAUTION: Carefully review
the instructions supplied with
the decorative type unvented
room heater for the minimum
fireplace size requirement. Do
not install the appliance in this
firebox, unless this firebox
meets the minimum dimensions
required for the installation.
WARNING: Any change to
this firebox or its controls can
be dangerous.
1. This firebox shall not be installed in a
bedroom or bathroom.
2. Never install the firebox
• in a recreational vehicle
• where curtains, furniture, clothing, or
other flammable objects are less than
42 inches from the front, top, or sides
of the firebox
• in high traffic areas
• in windy or drafty areas
3. Do not use this firebox as a wood-burning fireplace. Use only decorative
unvented room heaters (log sets).
4. Do not add extra logs or ornaments
such as pine cones, vermiculite, or rock
wool. Using these added items can
cause sooting.
5. Y ou must operate this fireplace with the
fireplace screen, hood, and brick liner
in place. Make sure these parts are in
place and screens are closed before running firebox.
6. Do not allow fans to blow directly into
the firebox. Avoid any drafts that alter
burner flame patterns. Ceiling fans can
create drafts that alter burner flame
patterns. Altered burner patterns can
cause sooting.
7. Do not use a blower insert, heat exchanger
insert or other accessory not approved for
use with this heater. Do not use blower
accessory with Models RUV 32 and
NLRUV32. Use only the provided hood
or GA6096 polished brass hood accessory
(see Accessory on page 11).
8. Vent-free gas log heaters installed in
these fireboxes require fresh air ventilation to run properly . See Air for Com-
bustion and Ventilation, pages 4
through 6.
9. Do not run firebox
• where flammable liquids or vapors
are used or stored
• under dusty conditions
10. Do not use this firebox to cook food or
burn paper or other objects.
11. Never place any objects in the firebox
or on logs.
12. Firebox front and screen becomes very
hot when running firebox. Keep children and adults away from hot surfaces
to avoid burns or clothing ignition. Firebox will remain hot for a time after
shut-down. Allow surfaces to cool before touching.
13. Carefully supervise young children
when they are in the room with firebox.
14. Turn firebo x off and let cool before servicing. Only a qualified service person
should service and repair firebox.
15. Operating vent-free log sets in a firebox above elevations of 4,500 feet
could cause pilot outage.
16. Do not use the firebox if it has been
under water due to the shock hazard that
could result with the blower accessary
(if installed) in place.
LOCAL CODES
Install and use fireplace with care. Follow all
local codes. In the absence of local codes, use
the latest edition of The National Fuel Gas
Code ANS Z223.1, also known as NFPA 54*.
Firebox must be electrically grounded in
accordance with the National Electrical Code,
ANS/NFPA70 (latest edition).
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
UNPACKING
1. With utility knife, cut the carton all the
way around above the staples on the
bottom tray. Lift the car ton off the firebox. Remove packing.
is located in the packing on the right
hand side of the heater front. Lift the
heater off the bottom tray.
2. Check carton contents for the
following:
• Screen assembly (2)
• Screen support rod (2)
• Hood
• Hardware and parts bag containing
the following:
- Owner’s Operation and
Installation Manual
- 2 - Black #10 x 3/8" Phillips
screws
- 3 - Zinc #10 x 1/2" shouldered
hex screws
- 2 - Black #10 x 5/8" shouldered
hex screws
If any items are missing, inform
dealer where you bought firebox.
3. Check all items for any shipping damage. If damaged, promptly inform
dealer where you bought firebox.
Note:
The hood
2
105509
PRODUCT
SPECIFICATIONS
Standoffs (Models RUV32
and NLRUV32 only)
35 1/16"
OWNER’S MANUAL
3
2
/4"
Built-in
Nailing
Flanges
Louvers
(Models UV32C and NLUV32C only)
Figure 1 - Firebox Front View
Standoffs
(Models RUV32 and NLRUV32 only)
3
/4"
2
33
1
1
/2"
6"
11
/16"
3
/16"
32
19
3
/8"
3
/4"
31
19
1
16
/4"
3
/4"
2
3
/8"
6
22 1/2"
11
16
/16"
1
/4"
12 1/2"
3
9
/4"
5
4
/8"
Electrical
Access Hole
Electrical Access
Hole with Bushing
Figure 2 - Firebox Side View
105509
1
2
/2"
Gas Line Access
Figure 3 - Firebox Top View
3
31
34 3/8"
35 5/8"
5
/8"
FIREPLACE MANUFACTURERS INC.
UNVENTED 32" FIREBOX
PRODUCT
FEATURES
OPERATION
This firebox is designed for use with approved ANS Z21.1.2 decorative type
unvented room heaters. (Physical size limitations apply. Refer to minimum firebox
requirements supplied with log heater.) It
requires no outside venting or chimney making installation easy and inexpensive. When
used without the blower (models UV32C
and NLUV32C only), the firebox requires
no electricity making it ideal for emergency
back-up heat.
BLOWER ACCESSORY
The UV32C and NLUV32C fireboxes will
accept the FA3700 accessory. The variable
blower allows you to select the fan speed
you desire. The blower circulates heated air
from the firebox into the room. Use of
blower is optional.
LOCATING
FIREBOX
PLANNING
Plan where you will install the firebox. This
will save time and money later when you
install the firebox. Before installation, consider the following:
1. Where the firebox will be located. Allow for wall and ceiling clearances (see
Installation Clearances, page 7).
2. Everything needed to complete installation.
3. These models CANNOT be installed in
a bedroom or bathroom.
4. Proper air for combustion and ventilation (see below).
AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This firebox shall
not be installed in a confined space
or unusually tight construction
unless provisions are provided
for adequate combustion and ventilation air. Read the following instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Today’s homes are built more energy efficient than ever. New materials, increased
insulation, and new construction methods
help reduce heat loss in homes. Home owners
weather strip and caulk around windows and
doors to keep the cold air out and the warm air
in. During heating months, home owners
want their homes as airtight as possible.
While it is good to make your home energy
efficient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning
appliances need fresh air for proper combustion and ventilation.
Exhaust fans, fireboxes, clothes dryers, and
fuel burning appliances draw air from the
house to operate. You must provide adequate fresh air for these appliances. This
will insure proper venting of vented fuelburning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 will
help you classify your space and provide
adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh air for
combustion and ventilation. However, in
buildings of unusually tight construction,
you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a. walls and ceilings exposed to the
outside atmosphere have a continuous water vapor retarder with
a rating of one perm (6x10
per pa-sec-m2) or less with openings gasketed or sealed
b. weather stripping has been
added on openable windows
and doors
c. caulking or sealants are applied
to areas such as joints around
window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and
gas lines, and at other openings.
If your home meets all of the three
criteria above, you must provide
additional fresh air. See
Air From Outdoors,
If your home does not meet all of the
three criteria above, proceed to
mining Fresh-Air Flow For Firebox
Location
, page 5.
and
page 6.
-11
kg
and
Ventilation
Deter-
Confined Space and Unconfined
Space
The National Fuel Gas Code (ANS Z2123.1,
1992 Section 5.3) defines a confined space
as a space whose volume is less than 50
cubic feet per 1,000 Btu per hour (4.8 m3 per
kw) of the aggregate input rating of all
appliances installed in that space and an
unconfined space as a space whose volume
is not less than 50 cubic feet per 1,000 Btu
per hour (4.8 m3 per kw) of the aggregate
input rating of all appliances installed in that
space. Rooms communicating directly with
the space in which the appliances are installed*, through openings not furnished
with doors, are considered a part of the
unconfined space.
This heater shall not be installed in a confined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
* Adjoining rooms are communicating only
if there are doorless passageways or ventilation grills between them.
4
105509
OWNER’S MANUAL
AIR FOR
COMBUSTION
AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR FIREBOX LOCATION
Determining if You Have a Confined or Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install firebox plus any adjoining rooms with doorless passageways or ventilation grills
between the rooms.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = _________ cu. ft. (volume of space)
Example
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total vol ume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
__________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)
Example:
3. Add the Btu/Hr of all fuel burning appliances in the space.
Gas water heater* _____________________ Btu/Hr
Gas furnace _____________________ Btu/Hr
Vented gas heater _____________________ Btu/Hr
Gas firebox logs _____________________ Btu/Hr
Other gas appliances*+ _____________________ Btu/Hr
Total = _____________________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_____________________Btu/Hr (maximum the space can support)
_____________________Btu/Hr (actual amount of Btu/Hr used)
Example:
The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space pr ovides an unconfined space, remov e door to adjoining
room or add ventilation grills between rooms. See Ventilation Air from Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 6.
C. Install a lower Btu/Hr firebox, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
: Space size22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 cu. ft. (volume of space)
3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (maximum Btu/Hr the space can support)
Example:
Gas water heater 40,000 Btu/Hr
Vent-free firebox
with log heater + 39,000 Btu/Hr
Total = 79,000 Btu/Hr
63,300 Btu/Hr (maximum the space can support)
79,000 Btu/Hr (actual amount of Btu/Hr used)
WARNING: If the area in which the firebox and gas log heater may be operated is smaller than that defined
as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and
ventilation air by one of the methods described in the
applicable local codes.
105509
National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3
Continued
5
or
FIREPLACE MANUFACTURERS INC.
,
,
,
,
,
,
UNVENTED 32" FIREBOX
AIR FOR
COMBUSTION AND
VENTILATION
Continued
VENTILATION AIR
Ventilation Air From Inside
Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must provide two permanent openings: one within
12" of the ceiling and one within 12" of the
floor on the wall connecting the two spaces
(see options 1 and 2, Figure 4). You can also
remove door into adjoining room (see option 3, Figure 4). Follow the National Fuel
Gas Code NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
WARNING: Rework worksheet, adding the space of the
adjoining unconfined space. The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two permanent openings: one within 12" of the
ceiling and one within 12" of the floor.
Connect these items directly to the outdoors
or spaces open to the outdoors. These spaces
include attics and crawl spaces.
IMPORTANT:
inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Do not provide openings for
Ventilation
Grills
Into Adjoining
Room,
Option 1
Or
Remove
Door into
Ventilation Grills
Into Adjoining Room,
Adjoining
Room,
Option
3
12"
Figure 4 - Ventilation Air from Inside Building
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air
12"
Option 2
To Attic
To
Crawl
Space
Ventilated
Crawl Space
Figure 5 - Ventilation Air from Outdoors
6
105509
42"
16"
Face or
Cabinet
Mantel
Corner
Mantel
12"
Floor - 0"
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your primary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
OWNER’S MANUAL
Note
: Your Vanguard firebox is designed to
be used in zero clearance installations. Wall
or framing material can be placed directly
against any exterior surface on the rear,
sides, or top of your firebox, except where
stand-off spacers are integrally attached. If
stand-off spacers are attached to your firebox, these spacers can be placed directly
against wall or framing materials.
Use the dimensions shown for rough openings to create the easiest installation (see
Built-In Fireplace Installation, page 10).
INSTALLATION
CLEARANCES
Clearances for Cabinet or
Corner Mantel Installation
Note:
Clearances are
the same if using
cabinet mantel or
built-in installation.
MINIMUM
CLEARANCE
NOTICE: A qualified service person must install firebox. Follow
all local codes.
WARNING: Never install the
firebox
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 42
inches from the front, top, or
sides of the firebox
• in high traffic areas
• in windy or drafty areas
CAUTION: Log heaters installed in this firebox create warm
air currents. These currents move
heat to wall surfaces next to firebox. Installing firebox next to vinyl or cloth wall coverings or operating firebox where impurities
(such as tobacco smoke, aromatic candles, cleaning fluids,
oil or kerosene lamps, etc.) in the
air exist, may discolor walls.
WARNING: Maintain the minimum clearances. If you can, provide greater clearances from
floor, ceiling, and adjoining wall.
Carefully follow the instructions below. This
will ensure safe installation.
Minimum Wall and Ceiling
Clearances (see Figure 6)
A. Clearances from the side of the firebox
opening to any combustible wall should
not be less than 16 inches for a cabinet
mantel or 12 inches for a corner installation.
B. Clearances from the top of the firebox
opening to the ceiling should not be less
than 42 inches.
C. When the firebox is installed directly
on carpeting or other combustible material, other than wood flooring, the
firebox should be installed on a metal
or wood panel extending the full width
and depth of the enclosure.
Figure 6 - Minimum Clearance to Wall and
Ceiling
Mantel Clearances for Built-In
Installation
If placing custom mantel above built-in
firebox, you must meet the minimum allowable clearance between mantel shelf and top
of firebox opening shown in Figure 7 on
page 8. These are the minimum allowable
mantel clearances for a safe installation.
Use larger clearances wherever possible to
minimize the heating of objects and materials placed on the mantel.
CAUTION: Do not allow the
vent-free gas log heater to touch
or extend beyond the fireplace
screen.
If your installation does not meet the minimum clearances in Figure 7 on page 8, you
must:
• raise the mantel to an acceptable height,
OR
• remove the mantel.
IMPORTANT:
Vent-free gas log heaters
add moisture to the air. Although this is
beneficial, installing firebox in rooms without enough ventilation air may cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, pages 4
through 6.
IMPORTANT:
level. If firebox is not level, log set will not
work properly.
105509
Make sure the firebox is
Continued
7
FIREPLACE MANUFACTURERS INC.
UNVENTED 32" FIREBOX
INSTALLATION
INSTALLATION
Continued
Continued
Note
:
All vertical measurements
are from top of fireplace
opening to bottom of mantel
shelf. All measurements
are in inches.
Facing material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments.
Firebox
Wire-mesh
Screen
Mantel Shelf
10"
8"
6"
1
2
"
/2
18.5" 20" 21" 22"
13" 16" 19" 21"
Supplied
Firebox Hood
Must Be Used
at All Times
For RUV32 and NLRUV32
Series noncirculating
smooth face models
For UV32C and NLUV32C
Series circulating louvered
models only
2. Place the blower against lower rear wall
of firebox wrapper with the exhaust
port directed upward. Align the holes
in top mounting tabs of blower with
holes in wall of wrapper (see Figure 9).
Using 2 screws provided, mount blow er
and tighten screws securely.
3. Be certain that all wire terminals are
securely attached to terminals on
blower motor and that the screw retaining the green ground wire is tight.
4. Locate the plastic hole plug installed
in the 3/8" diameter opening in the
lower right side of the firebox front
panel (see Figure 9). Remove the plastic plug and discard.
5. Place speed control against inner wall
of front panel, pushing the plastic control shaft forward through the opening
(see Figure 10, page 9).
6. While supporting speed control, secure
control shaft with lock nut by pushing
and turning lock nut with pliers clockwise until it is tight against front panel.
Place control knob provided on shaft
(see Figure 10, page 9).
Figure 7 - Minimum Mantel Clearances for Built-In Installation
Figure 7 - Minimum Mantel Clearances for Built-In Installation
INSTALLING BLOWER
ACCESSORY
(Models UV32C and
NLUV32C only)
You may install blower accessory FA3700
with a cabinet mantel installation or with
built-in installation (page 10) with models
UV32C and NLUV32C only.
WARNING: If there is a duplex
electrical outlet installed in the
right side of the bottom of the
fireplace base area, be sure that
the electrical power to the outlet is
turned off before proceeding with
blower installation. Failure to do
this may result in serious injury.
Conventional Installation of
Blower Accessory
NOTICE: If a log set is currently
installed in the firebox, disconnect log set from gas supply and
remove from firebox. Contact a
qualified service person to do this.
1. Remove the firebox bottom:
a. Remove the 4 screws that secure the
bottom of the firebox (see Figure 8).
b.Carefully raise and remove the fire-
box bottom from the firebox.
Figure 8 - Removing Screws from Firebox
Bottom
Screws
Lower
Rear Wall
of Firebox
Wrapper
Blower
Screws
Floor
Supports
Plastic
Hole Plug
Exhaust
Port
Top
Mounting
Tab
Figure 9 - Mounting Blower to Firebox
8
105509
OWNER’S MANUAL
INSTALLATION
Continued
7. Plug in blower power cord.
a. If your firebox is installed as a free-
standing unit, determine whether the
power cord will exit the left side or the
right side of the firebox. Install 1 plastic bushing provided into the 1 1/2" hole
in the floor support on the exit side.
Install the second plastic bushing provided into the 11/2" hole in the outer
casing through which the power cord
will exit (see Figure 11). Route power
cord through both plastic bushings and
plug the power cord into a 3-prong
grounded wall receptacle near the
firebox.
b. If your firebox installation is re-
cessed and/or pre-wired, see Built-
In Installation of Blower Accessory,
column 2.
8. Turn on power to duplex outlet if previously turned off per the warning in step 1.
9. Check to make sure that the power cord
is completely clear of the blower wheel
and that there are no other foreign objects in blower wheel. Turn blower on
and check for operation.
WARNING: Never touch the
blower wheel while in operation.
10. Peel off the backing paper and stick the
supplied wiring diagram decal on the firebox bottom approximately 12" in front
of the blower .
11. Replace bottom of firebox.
sure the back of the firebox bottom
slides under the rear of the firebrick (lift
the firebrick up if necessary.)
12. Reattach firebox bottom using 4 screws
removed in step 1.
Note:
Discard the remaining hardw are
items.
13. Install the log set heater according to
the installation instructions supplied
with the heater.
NOTICE: A qualified electrician
must connect electrical wiring to
duplex outlet for built-in installation. Follow all local codes. In
absence of local codes follow
National Electrical Code ANS/
NFPA 70.
Note:
Make
The
Speed
Control
Control Knob
Figure 10 - Attaching Speed Control
Figure 11 - Installing Plastic Bushing for
Power Cord
Control
Shaft
Lock Nut
Plastic
Bushing
Built-In Installation of Blower
Accessory
1. Before replacing bottom of firebox,
remove screw holding duple x outlet to
the support bracket in the bottom of
firebox. Remove duplex outlet.
2. Clamp electrical cable into firebox
through smallest hole in outer casing
using strain relief provided.
3. Route wires from electrical box through
hole in side of heater and hole in support bracket (see Figure 12).
4. Connect wires from the electrical box
to duplex outlet. Match wire colors to
those indicated on duplex outlet. Be
sure to connect ground wire.
5. Replace duplex outlet with screw.
6. Plug blower power cord into duplex
outlet.
7. Replace bottom of firebox.
Support
Blower
Figure 12 - Routing Blower Accessory
Power Cord for Built-In Installation
Bracket
Blower Power Cord
Cables From
Electrical
Source
Duplex
Outlet
Screw
Operating the Blower
Light your gas appliance with the blower
off. After about 15 minutes, turn the blower
on to deliver heated air at the top louvers.
The blower features a variable control which
allows you to select the speed you desire.
Note:
Periodically check the louvers of the
firebox and remove any dust, dirt, or other
obstructions.
INSTALLING LOG HEATER IN
FIREBOX
CAUTION: Do not remove the
metal data plates attached to the
heater base assembly. The data
plates contain important warranty information.
CAUTION: Do not pick up log
base assembly by burners. This
could damage burners. Only
handle base by grates.
1. Remove four screws holding firebox
bottom in place.
2. Lift and remove firebox bottom (see
Figure 13, page 10).
3. If installing FA3700 Blower Accessory
(Models UV32C and NLUV32C only),
see Installing Blower Accessory, page 8.
4. Route flexible gas line from manual
shutoff valve into f irebox through side.
NOTICE: Most building codes
do not permit concealed gas connections. A flexible gas line is
recommended to allow accessibility from the firebox. The flexible gas supply line connection
to the manual shutoff valve
should be accessible.
5. Install and properly test gas log heater .
Follow installation instructions included with the vent-free gas log heater
that is being installed.
6. Replace firebox bottom and secure with
screws.
Continued
Continued
105509
9
FIREPLACE MANUFACTURERS INC.
34 3/4"
17 3/4"
33" (UV32C and
NLUV32C)
34 1/4" (RUV32 and
NLRUV32)
UNVENTED 32" FIREBOX
INSTALLATION
Continued
Figure 13 - Removing Firebox Bottom
INSTALLING FIREPLACE
HOOD
1. Attach three zinc-colored shoulder
screws to back of hood.
2. Insert hood into hood-mounting slots
on firebox.
3. Hold hood in place. Insert two black
Phillips screws through bottom of hood
and tighten.
Hood
Hood
Mounting Slot
Shoulder
Screw
Screw
Figure 14 - Installing Fireplace Hood
INSTALLING FIREPLACE
SCREEN
1. Insert each rod through nine rings located at top of screen.
2. Insert first rod into rear hole in left side
of firebox. Fasten rod to rear hole near
center of firebox using black shoulder
screw.
3. Insert other rod into front hole on right
side of firebox and fasten using remaining shoulder screw.
3. If using FA3700 blower accessory
(Models UV32C and NLUV32C only),
see Installing Blower Accessory for
built-in installation, page 8.
Front
Hole
Rear Hole
Screw
4. Attach flexible gas line to log set. See
Connecting to Gas Supply in log set
Rod
Ring
owner’s manual.
5. Carefully insert firebox into rough
opening.
6. Attach firebox to wall studs using nails
or wood screws through holes in nail-
Screen
ing flange (see Figure 18, page 11).
7. Check all gas connections for leaks. See
Checking Gas Connections in log set
owner’s manual.
Figure 15 - Installing Fireplace Screen
(Shown Without Fireplace Hood for
Clarity)
BUILT-IN FIREBOX
INSTALLATION
Built-in installation of this firebox involves
installing firebox into a framed-in enclosure.
This makes the front of firebox flush with
wall. If installing a mantel above the firebox,
but you must follow the clearances shown in
Figure 7, page 8. Follow the instructions
below to install the firebox in this manner.
1. Frame in rough opening. Use dimensions shown in Figure 16 for the rough
opening
If installing in a corner, use dimensions
shown in Figure 17 for the rough opening. The height is 33" (UV32C a nd
NLUV32C) or 34 1/4"
NLRUV32
), which is the same as the
(RUV32
and
wall opening in Figure 16.
2. Install gas piping to firebox location.
This installation includes an approved
flexible gas line (if allowed by local
codes) after the manual shutoff valve.
The flexible gas line must be the last
item installed on the gas piping. See
Connecting to Gas Supply in log set
owner’s manual.
Height Front Width Depth
Model # Actual Framing Actual Framing Actual Framing
UV32C 32
NLUV32C 32
RUV32 33
NLRUV32 33
3
/16" 33" 34 3/8" 34 3/4" 16 11/16" 17 3/4"
3
/16" 33" 34 3/8" 34 3/4" 16 11/16" 17 3/4"
11
/16" 34 1/4" 34 3/8" 34 3/4" 16 11/16" 17 3/4"
11
/16" 34 1/4" 34 3/8" 34 3/4" 16 11/16" 17 3/4"
10
Figure 16 - Rough Opening for Installing
in Wall
39 3/8"
34 3/4"
55 5/8"
Figure 17 - Rough Opening for Installing
in Corner
27 7/8"
105509
OWNER’S MANUAL
INSTALLATION
Continued
Nails or Wood
Screws
Nailing
Flanges
Figure 18 - Attaching Firebox to Wall
Studs
PART S
Note:
Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call Fireplace Manufacturers
Incorporated's Technical Service Department at 1-888-427-8322.
When calling Fireplace Manufacturers Inc.,
have ready
• your name
• your address
• model number of your heater
• how heater was malfunctioning
• type of gas used (propane or natural gas)
• purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER
WARRANTY
ACCESSORYREPLACEMENT
Purchase this heater accessory from your
local dealer. If they can not supply this
accessory, call Fireplace Manufacturers
Incorporated's Parts Department at 1-800888-2050 for referral information. You can
also write to the address listed on the back
page of this manual.
BLOWER ACCESSORY FA3700
Use with Models UV32C and NLUV32C
only. The variable speed blower allows
you to select the desired speed. The blower
circulates heated air from the fireplace into
the room.
TECHNICAL
SERVICE
You may have further questions about installation, operation, or troubleshooting. If
so, contact Fireplace Manufacturers
Incorporated's Technical Service Department at 1-888-427-8322.
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call Fireplace Manufacturers
Incorporated's Parts Department at 1-800888-2050 for referral information.
When calling Fireplace Manufacturers Inc.,
have ready
• model number of your heater
• the replacement part number
105509
11
FIREPLACE MANUFACTURERS INC.
UNVENTED 32" FIREBOX
ILLUSTRATED
PART S
BREAKDOWN
RUV32
NLRUV32
2*
3*
2*
17
13
17
1
7
16
16
4*
18
18
11
17
15
16
5
16
16
16
20
*Not Included with Model NLRUV32
12
9
18
16
19
8
10
6
14
12
105509
OWNER’S MANUAL
PARTS LIST
RUV32
NLRUV32
*Not Included with Model NLRUV32
This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions
listed under Replacement Parts on page 11 of this manual.
KEY PART NUMBER
NO. RUV32 NLRUV32 DESCRIPTION QTY.
1 101872-03 101872-03 Firebox Top 1
2 101889-01 * Firebrick Retainer 3
3 101929-02 * Rear Firebrick 1
4 101932-02 * Side Firebrick 2
5 103207-01 103207-01 Outer Casing 1
6 103208-01 103208-01 Outer Shell Base 1
7 103245-01 101838-02CJ Firebox Wrapper 1
8 103297-01 103297-01 Assembly Screen 2
9 103217-01CK 103217-01CK Hood 1
10 103773-02CK 103773-02CK Front Assembly 1
11 103250-01CK 103250-01CK Firebox Bottom 1
12 103809-01 103809-01 Screen Rod 2
13 103816-01 103816-01 Firebox Insulation 1
14 101348-01 101348-01 Firebox Support 2
15 101357-03 101357-03 Outer Casing Top 1
16 M11084-26 Hex Head Screw, #10-16 49
M11084-26 Hex Head Screw, #10-16 46
17 098194-02 098194-02 Stand Off 3
18 098304-01 098304-01 Phillips Pan Head Screw, #10 13
19 099230-01 099230-01 Hex Head Screw 3
20 099230-02 099230-02 Shoulder Screw 2
105509
13
FIREPLACE MANUFACTURERS INC.
UNVENTED 32" FIREBOX
ILLUSTRATED
PART S
BREAKDOWN
15
UV32C
NLUV32C
2*
3*
2*
16
16
1
7
4*
16
18
18
11
5
16
17
16
9
12
20
*Not Included with Model NLUV32C
18
19
10
16
8
22
14
6
14
13
21
105509
OWNER’S MANUAL
PARTS LIST
UV32C
NLUV32C
This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions
listed under Replacement Parts on page 11 of this manual.
KEY PART NUMBER
NO. UV32C NLUV32C DESCRIPTION QTY.
1 101872-03 101872-03 Firebox Top 1
2 101889-01 * Firebrick Retainer 3
3 101929-02 * Rear Firebrick 1
4 101932-02 * Side Firebrick 2
5 103207-01 103207-01 Outer Casing 1
6 103208-01 103208-01 Outer Shell Base 1
7 103245-01 101838-01CJ Firebox Wrapper 1
8 103297-01 103297-01 Assembly Screen 2
9 103217-01CK 103217-01CK Hood 1
10 103773-01CK 103773-01CK Front Assembly 1
11 103250-01CK 103250-01CK Firebox Bottom 1
12 103809-01 103809-01 Screen Rod 2
13 M12461-2 M12461-2 Screw, Outlet Mounting 1
14 101348-01 101348-01 Firebox Support 2
15 101357-01 101357-01 Outer Casing Top 1
16 M11084-26 Hex Head Screw, #10-16 49
M11084-26 Hex Head Screw, #10-16 46
17 103771-01 103771-01 Strain Relief Fitting 1
18 098304-01 098304-01 Phillips Pan Head Screw, #10 13
19 099230-01 099230-01 Hex Head Screw 3
20 099230-02 099230-02 Shoulder Screw 2
21 103769-01 103769-01 Duplex Outlet 1
22 103457-01 103457-01 Button Plug 1
105509
*Not Included with Model NLUV32C
15
WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.
We make no other warranty, expressed or implied.
LIMITED WARRANTY
VENT-FREE FIREBOX
Fireplace Manufacturers Incorporated warrants this product to be free from defects in materials and components for four (4) years from
the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable
instructions. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to
proper operating condition and an allowance for labor when provided by a Fireplace Manufacturers Incorporated Authorized Service
Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or Fireplace Manufacturers Incorporated who
will provide original factory replacement parts. Failure to use original factory replacement parts voids this warranty. The heater MUST
be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become
damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost,
labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT;
THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE TO FOUR (4) YEARS ON ALL COMPONENTS AND FROM THE DATE OF FIRST PURCHASE;
AND FIREPLACE MANUFACTURERS INCORPORATED’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF
THE PRODUCT AND FIREPLACE MANUFACTURERS INCORPORATED SHALL NOT BE LIABLE FOR ANY OTHER
DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential
damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
2701 South Harbor Boulevard
Santa Ana, CA 92704
105509 01
NOT A UPC
105509-01
Rev. A
03/99
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