Superior Fireplaces VRT4536WS Service manual

Installation and Operation Instructions
Unvented (Vent-Free) Universal Firebox
With Refractory Panels
P/N 126700-01 REV. C 06/2021
Models
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
WARNING: 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:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or property damage.
- 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.
• Leave the building immediately.
• 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.
PFS
®
US
Report No. F09-130
VRT4536WS
VRT4536WH
VRT4542WS
VRT4542WH
VRT4550WS
VRT4550WH
P126700-01
WARNING: FOR USE ONLY WITH A LISTED, GAS-FIRED UNVENTED DECORATIVE ROOM HEATER NOT TO
EXCEED 40,000 BTU/H.
DO NOT BUILD A WOOD FIRE.

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2
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 4
Product Features................................................. 4
Locating Firebox.................................................. 4
Product Specications......................................... 5
Air For Combustion and Ventilation..................... 8
Installation ......................................................... 10
Firebrick Wall Installation................................... 14
Gas Line Installation.......................................... 15
Replacement Parts............................................ 16
Service Tips ....................................................... 16
Technical Service............................................... 16
Accessories ....................................................... 17
Parts .................................................................. 18
Warranty ............................................................ 23
SAFETY
This appliance may be installed in an
aftermarket,* permanently located,
manufactured (mobile) home, where
not prohibited by local codes.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate or
service this fireplace. Improper use of
this fireplace can cause serious injury
or death from burns, fire, explosion,
electrical shock and carbon monoxide
poisoning.
This firebox has been tested under
Z21.91b-2007 for use with approved
ANSI Z21.11.2 decorative type un-
vented room heater.
WARNING:Any changetothis fire-
box or its controls can be dangerous.
DANGER: Carbon monoxide poi-
soning may lead to death!
WARNING: Do not use a blower
insert, heat exchanger insert or other
accessory not approved for use with
this firebox.
WARNING: Do not allow fans to
blow directly into the firebox. Avoid
any drafts that alter burner flame pat-
terns. Ceiling fans can create drafts
that alter burner flame patterns.
Altered burner patterns can cause
sooting.
* Aftermarket: Completion of sale, not for purpose
of resale, from the manufacturer
WARNING: FIRE, EXPLOSION, AND ASPHYXIATION HAZARD
Improper adjustment, alteration, service, maintenance, or installation of this
heater or its controls can cause death or serious injury.
Read and follow instructions and precautions in User’s Information Manual
provided with this heater.
WARNING: This product contains
and/or generates chemicals known to
the state of California to cause cancer
or birth defects or other reproductive
harm.

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126700-01C 3
SAFETY
Continued
1. Do not use this rebox as a wood burning
replace. Use only decorative unvented
room heaters (log sets).
2. Do not add extra logs or ornaments such as
pine cones, vermiculite or glowing embers
(rockwool). Using these added items can
cause sooting.
3. Vent-free gas log heaters installed in these
reboxes require fresh air ventilation to
run properly. See Air for Combustion and
Ventilation, Page 8.
4. Do not operate vent-free heaters installed
in these reboxes
• where ammable liquids or vapors are
used or stored
• under dusty conditions
5. Do not use this rebox to cook food or
burn paper or other objects.
6. Turn appliance off and let cool before
servicing. Only a qualied service person
should service and repair rebox.
7. Operating vent-free heaters installed in
these reboxes above elevations of 4,500
feet could cause pilot outage.
8. Do not use the rebox if it has been
under water.
9. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater
off. If heated, the vapors from these prod-
ucts may create a white powder residue
within burner box or on adjacent walls
and furniture.
10. Provide adequate clearances around air
openings.
11. Use only the provided hood. See Parts,
Page 19.
Due to high temperatures, the ap-
pliance should be located out of
traffic and away from furniture and
draperies.
Do not place clothing or other flam-
mable material on or near the appli-
ance. Never place any objects in the
firebox or on logs.
Keep the fireplace area clear and
free from combustible materials,
gasoline, and other flammablevapors
and liquids.
Children and adults should be alerted
to the hazard of high surface tempera-
ture and should stay away to avoid
burns or clothing ignition.
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 shutdown. Allow surfaces
to cool before touching.
You must operate this fireplace with
the providedfireplace screen andhood
in place. Make sure these parts are in
place and screens are closed before
running installed gas log heater. Re-
place hood with INNOVATIVE HEARTH
PRODUCTS cat. no. J4350 - 50", cat.
no. J4351 - 42", or cat. no. J4352 - 36"
only. This hood has been designed to
keep the operation of your fireplace
safe and efficient.
Young children should be carefully
supervised when they are in the same
room with the appliance.
The firebox canopy (hood) shall not
be modified or replaced with a canopy
(hood) that may be provided with the
unvented decorative room heater.

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PRODUCT FEATURES
OPERATION
This rebox is designed for use with approved
ANSI Z21.11.2 decorative type unvented room
heaters. (Physical size limitations apply. Refer
to minimum rebox requirements supplied
with log heater.) It requires no outside vent-
ing or chimney making installation easy and
inexpensive.
LOCAL CODES
LOCATING FIREBOX
PLANNING
Plan where you will install the rebox. This will
save time and money later when you install
the rebox. Before installation, consider the
following:
1. Where rebox will be located. Allow for
wall and ceiling clearances (see Installa-
tion Clearances, Page 11).
2. Everything needed to complete installation.
3. These models CANNOT be installed in
a bedroom unless maximum Btu rating
of installed vent-free log set is less than
10,000 Btu/hr.
4. Proper air for combustion and ventilation
(Page 8).
Install and use rebox with care. Follow all
local codes. In the absence of local codes,
use the latest edition of The National Fuel
Gas Code ANSI Z223.1/NFPA 54*; National
Fuel Gas Code (latest edition). Firebox must
be electrically grounded in accordance with
the National Electrical Code, ANSI/NFPA 70
(latest edition).
COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS
These appliances are approved for installation in the US state of Massachusetts if the fol-
lowing additional requirements are met:
• Un-vented Room Heaters shall be installed in accordance with 527 CMR 30.
• Installation and repair must be done by a plumber or gas tter licensed in the Common-
wealth of Massachusetts.
• The exible gas line connector used shall not exceed 36 inches (92 centimeters) in length.
• The individual manual shut-off must be a T-handle type valve.
• Unvented appliances may NOT be installed in bedrooms or bathrooms.
• A working smoke detector must be installed in the area where vent-free appliances are
installed.
Seller of unvented propane or natural gas-red supplemental room heaters shall provide
to each purchaser a copy of 527 CMR 30 upon sale of the unit.
*Available from:
American National Standards Institute, Inc.
25 West 43rd Street, 4th oor
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02169-7471

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126700-01C 5
PRODUCT SPECIFICATIONS
36" MODELS
Figure 1 - 36" Models VRT4536WS and VRT4536WH
(Picture may vary from actual replace)
30 1/2"
29"
30"
11 1/8"
54
3/4"
7 7/8"7"
36"
45 1/4"
33/8"
91/2"
50 /"
363/8"
7 3/8"
111/8"
3 3/4"
4 7/8"
36" HEARTH
1 1/4"
20 1/4"
(Ref.)
35 1/4"
19"
22 1/2"

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6
PRODUCT SPECIFICATIONS
Continued
42" MODELS
Figure 2 - 42" Models VRT4542WS and VRT4542WH
(Picture may vary from actual replace)
4 7/8"
54
3/4"
7 7/8"7"
36 3/8"
50 /"
42"
51 1/4"
32 3/8"
3 3/4"
30 3/8"
8 3/4"
13"
3 3/8"
9 1/2"
30"
11 1 /8"
42" HEARTH
1 1/4"
23"
(Ref.)
41 3/8"
26 3/8"
21 3/4"

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126700-01C 7
PRODUCT SPECIFICATIONS
Continued
50" MODELS
Figure 3 - 50" Models VRT4550WS and VRT4550WH
(Picture may vary from actual replace)
363/8"
50 /"
8 3/4"
13"
33/8"
91/2"
59 1/4"
50"
7 7/8"7"
30"
54
3/4"
11 1/8"
32 3/8"
3 3/4"
38 3/8"
4 7/8"
50" HEARTH
1 1/4"
23"
(Ref
.)
49 3/8"
34 3/8"
21 3/4"

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8
AIR FOR COMBUSTION AND VENTILATION
Unusually tight construction is dened as
construction where:
a. walls and ceilings exposed to the outside
atmosphere have a continuous water
vapor retarder with a rating of one perm
(6 x 10
-11
kg per pa-sec-m
2
) or less with
openings gasketed or sealed and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to areas
such as joints around window and door
frames, between sole plates and oors,
between wall-ceiling joints, between
wall panels, at penetrations for plumb
-
ing, 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 Ventilation Air From Outdoors, Page 10.
If your home does not meet all of the three
criteria above, proceed to Determining Fresh-
Air Flow For Firebox Location.
Conned and Unconned Space
The National Fuel Gas Code, ANSI Z223.1/
NFPA54 allows two methods for determining
whether the space in which the heater is being
installed is conned or unconned space. The
standard method denes a conned space as a
space whose volume is less than 50 cubic feet
per 1,000 Btu per hour (4.8 m
3
per kw) of the ag -
gregate input rating of all appliances installed in
that space and an unconned space as a space
whose volume is not less than 50 cubic feet per
1,000 Btu per hour (4.8 m
3
per kw) of the ag -
gregate 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 unconned space.
Where the air inltration rate of a structure is
known, the Known Air Inltration Rate Method
may be used. Follow The National Fuel Gas
Code, ANSI Z223.1/NFPA 54 to use this
method to determine if the space is conned
or unconned.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
Determining if You Have a Conned or
Unconned Space Using the Standard
Method
Today’s homes are built more energy efcient
than ever. New materials, increased insulation
and new construction methods help reduce heat
loss in homes. Homeowners apply weather strip
and caulk around windows and doors to keep
the cold air out and the warm air in. During heat-
ing months, homeowners want their homes as
airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
Exhaust fans, some replaces, clothes dryers
and some fuel-burning appliances draw air from
the house to operate. You must provide adequate
fresh air for these appliances. This will ensure
proper venting of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for Com-
bustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on Pages 8 through 10 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.
WARNING: Thisheater shallnot
be installed in a room or space un-
less the required volume of indoor
combustion air is provided by the
method described in the National
Fuel Gas Code, ANSI Z223.1/NFPA
54, the International Fuel Gas
Code, or applicable local codes.
Read the following instructions
to ensure proper fresh air for this
and other fuel-burning appliances
in your home.

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126700-01C 9
AIR FOR COMBUSTION AND VENTILATION
Continued
Figure 4 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
Use this work sheet to determine if you have a
conned or unconned space.
Space: Includes the room in which you will install
heater 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 :Space size 22 ft. (length) x 18 ft.
(width) x 8 ft. (ceiling height) = 3,168 cu. ft.
(volume of space)
If additional ventilation to adjoining room is sup-
plied with grills or openings, add the volume of
these rooms to the total volume of the space.
2. Multiply the space volume by 20 to determine the
maximum Btu/Hr the space can support.
________ (volume of space) x 20 = (Maximum
Btu/Hr the space can support)
Example : 3,168 cu. ft. (volume of space) x 20 =
63,360 (maximum Btu/Hr space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free replace _________ Btu/Hr
Gas water heater* _________ Btu/Hr
Gas furnace _________ Btu/Hr
Vented gas heater _________ Btu/Hr
Gas replace 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.
Example:
Gas water heater _________ Btu/Hr
Vent-free replace  _________ Btu/Hr
Total = _________ Btu/Hr
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 : 63,360 Btu/Hr (maximum the space
can support)
79,000 Btu/Hr (actual amount of Btu/
Hr used)
The space in the example is a conned 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 provides an
unconned space, remove door to adjoining
room or add ventilation grills between rooms.
See Ventilation Air From Inside Building.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors, Page 10.
C. Install a lower Btu/Hr replace, if lower Btu/Hr
size makes room unconned.
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
40,000
39,000
79,000
WARNING: If the area in which
the heater may be operated does
not meet the required volume for
indoor combustion air, combus-
tion and ventilation air shall be
provided by one of the methods
described in the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code, or
applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the wall
connecting the two spaces (see options 1 and
2, Figure 4). You can also remove door into ad-
joining room (see option 3, Figure 4). Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54,
Air for Combustion and Ventilation for required
size of ventilation grills or ducts.

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10
Figure 5 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the oor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
IMPORTANT:Do not provide openings
for inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
INSTALLATION
AIR FOR COMBUSTION AND VENTILATION
Continued
WARNING: Never install
rebox
• in a bedroom or bathroom*
• in a recreational vehicle
• where curtains, furniture,
clothing, or other ammable
objects are less than 36"
from front or 42" from top of
rebox; for side clearances
see Figure 4, Page 11
• in high trafc areas
• in windy or drafty areas
* Unless installed log set is
rated at 10,000 Btu/Hr or less.
WARNING: A qualied ser-
vice person must install rebox.
Follow all local codes.
CAUTION: Log heaters in-
stalled in this firebox create
warmair currents.These currents
move heat to wall surfaces next
to rebox. Installing rebox next
to vinyl or cloth wall coverings or
operating rebox where impuri-
ties(such as, butnot limited to,to-
bacco smoke, aromatic candles,
cleaning uids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls or cause odors.
IMPORTANT: Vent-free gas log heaters add
moisture to the air. Although this is benecial,
installing rebox in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See, Page 8.
IMPORTANT: Make sure the rebox is level.
If rebox is not level, log set will not work
properly.
NOTE: Your rebox is designed to be used in
zero clearance installations. Wall or framing
material can be placed against any exterior
surface on the rear, sides, top or bottom of
your rebox, except where standoff spacers
are integrally attached. If standoff spacers are
attached to your rebox, these spacers can
be placed directly against wall or framing ma-
terials. Use the dimensions shown for rough
opening to create the easiest installation.
Use dimensions shown for rough openings
to create the easiest installation (see Built-In
Firebox Installation, Page 12).
NOTICE: The rebox identica-
tion label (including model num-
ber, serial number, clearances,
etc.) is located on a chain under
the bottom refractory.

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126700-01C 11
INSTALLATION
Continued
Figure 7 - Minimum Mantel Clearances
for Built-In Installation
Supplied
Firebox Hood
Must Be Used
at All Times
Wire-mesh
Screen
Firebox
Noncombustible
Material May
Project Off this
Surface above
the Firebox Hood
Mantel Shelf
Note: Any portion of the
mantel shelf must NOT
extend beyond this profile.
12" 16" 20"
1 1 / 2"
6 3
/ 4"
12"
Note: All vertical
measurements are
from top of fireplace
hood opening to
bottom of mantel shelf.
These minimum
clearances replace any
other recommended
clearances supplied
with your ANSI Z21.11.2
approved gas logs.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Framing
Material
Figure 6 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
Example
*
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling and adjoining wall.
INSTALLATION CLEARANCES
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 replace
cabinet to any combustible material and
wall should follow diagram in Figure 6.
Example:The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3-1/2" from the wall. This com-
bustible material must be 4" from the side
of the replace cabinet (see Figure 4).
B. Clearances from the top of the rebox
opening to the ceiling should not be less
than 42".
C. When rebox is installed on carpeting, tile
(other than ceramic) or other combustible
material, other than wood ooring, the
rebox should be installed on a metal or
wood panel extending the full width and
depth of the enclosure.
D. Clearances from the bottom of rebox to
the oor is 0".
These reboxes can be installed as free-
standing units against a wall with approved
cabinet mantels that may be available from
your retailer or supplier, or as a built-in unit.
The clearances are the same for either instal-
lation method.
CAUTION: Do not allow the
vent-free gas log appliance to
touch or extend beyond the
rebox screen.
NOTICE: Surface temperatures
of adjacent walls and mantels be-
come hot during operation. Walls
and mantels above the rebox
may become hot to the touch.
If installed properly, these tem-
peratures meet the requirement
of the national product standard.
Follow all minimum clearances
shown in this manual.
Mantel Clearances for Built-In
Installation
If placing custom mantel above built-in re-
box, you must meet the minimum allowable
clearance between mantel shelf and top of
rebox opening shown in Figure 7. 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.
Maintain adequate clearances for accessibility for purposes
of servicing and proper operation.
Minimum clearance requirements include any projections such
as shelves, window sills, mantels, etc. above the appliance.

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12
Figure 8 - Framing Dimensions
71" (50" Models)
100" (50" Models)
65" (42" Models)
92" (42" Models)
86.5" (36" Models)
61" (36" Models)
Maintain 1 1/2"
Clearance at Sides
and Back of Fireplace
1 1/2" Clearance
Not Required at
Nailing Flanges
Figure 9 - Corner Installation
30.125"
59.75" (50" Models)
55"
51.75" (42" Models)
45.75" (36" Models)
28.250"
(36" Models)
INSTALLATION
Continued
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• raise the mantel to an ac-
ceptable height
• remove the mantel
BUILT-IN FIREBOX INSTALLATION
Built-in installation of this rebox involves
installing rebox into a framed-in enclosure.
This makes the front of rebox ush with wall.
If installing a mantel above the rebox, you
must follow the clearances shown in Figure
7, Page 11. Follow these instructions to install
the rebox in this manner.
1. Frame in rough opening. The firebox
framing should be constructed of 2 x 4
lumber or heavier. Use dimensions and
rough opening layout in Figure 8. Adjust
framing so that rebox ushes with nished
wall surface. If installing in a corner, use
dimensions in Figure 9, for rough opening.
2. Install gas piping to rebox location. See
Gas Line Installation on Page 16 and Con-
necting to Gas Supply in log set owner’s
manual.
WARNING: Do not allow any
combustible materials to overlap
the rebox front facing.
WARNING: Do not allow non-
combustible materials to cover
any necessary openings.
WARNING: Do not ll the
spaces around the rebox with
insulation or other materials.
WARNING: Do not alter, cut
or modify replace spacers.
WARNING: Framing may be
placed or rest against replace
spacer, however; framing must
never be notched.
3. Carefully set firebox in front of rough
opening with back of rebox inside wall
opening.
4. Carefully insert rebox into rough opening.
5. Attach rebox to wall studs using nails
or wood screws through holes in nailing
ange (see Figure 10).
6. Install and properly test gas log heater.
Follow installation instructions included
with the vent-free gas log heater that is
being installed.
IMPORTANT: When nishing your rebox,
combustible materials such as wall board,
gypsum board, sheet rock, drywall, plywood,
etc. may be butted up next to the sides and top
of the rebox. Combustible materials should
never overlap the rebox front facing.
IMPORTANT:Noncombustible materials
such as brick, tile, etc. may overlap the front
facing, but should never cover any necessary
openings.

SuperiorFireplaces.us.com
126700-01C 13
Figure 10 - Attaching Firebox to Wall
Studs
Nailing
Flanges
Nails or
Wood
Screws
Figure 12 - Inserting Firebox Into Cabinet
Mantel (Mantel May Vary From Illustration)
Figure 11 - Installing Cabinet Mantel
(Mantel May Vary From Illustration)
Cabinet
Mantel
Gas
Piping
Gas Line
Access Hole
(Either Side
of Firebox)
INSTALLATION
Continued
WARNING: Use only non-
combustible mortar or adhe-
sives when overlapping the front
facing with noncombustible
facing material.
WARNING: A qualied ser-
vice person must install rebox.
Follow all local codes.
INSTALLING FIREBOX USING
OPTIONAL CUSTOM BUILT
MANTELS
This rebox may be installed using a cabinet
mantel against a wall in your home. The
rebox and cabinet mantel can be installed
directly on the oor. Mantels may be avail-
able from your retailer or custom built for
your home.
1. Assemble cabinet mantel as instructed.
2. Install gas piping to rebox location. See
Gas Line Installation on Page 16. You may
have to cut an access hole in the oor or
wall to run gas line to rebox. Make sure to
locate access hole so cabinet mantel will
cover it when installed (see Figure 11).
3. Place rebox on oor in desired location.
Make sure mantel will be ush against
wall when installed.
4. Carefully slide cabinet mantel over re-
box. Be careful not to scratch rebox,
cabinet mantel, ooring, etc., when install-
ing (see Figure 12).
5. Install and properly test gas log heater.
Follow installation instructions included
with the vent-free gas log heater that is
being installed.

SuperiorFireplaces.us.com 126700-01C
14
REFRACTORY PANEL INSTALLATION
1. Remove screen assemblies and all hard-
ware components out of the rebox. The
bottom panel is preinstalled in the rebox.
Make sure the bottom refractory panels is
centered in the rebox and ush with the
front of the replace.
2. Place cardboard on top of bottom refrac-
tory panel as a protection to prevent ship-
ping and scratching during installation of
the other panels.
Figure 13 - Installing Refractory Panels
LEFT BRICK
PANEL
PANEL
RIGHT BRIC
K
REAR BRICK
PANEL
BOTTOM
BRICK PANEL
ASH PANEL
UPPER CORNER
BRACKET (2x)
3. Install rear refractory panel. This panel
has a top and bottom. To determine which
is which, match up the pattern on the rear
panel with the left and right sides before
installing the rear panel. Make sure panel
is center before continuing.
4. Install the right and left refractory panels
with the gas line knockouts orientated
down toward the bottom refractory. Align
the left and right panels with the rear panel
so the grout lines line up.
5. Install the upper corner brackets and
tighten set screws (Figure 13).
IMPORTANT: Installation of brick
should be done after the re-
place is placed in a permanent
location.

SuperiorFireplaces.us.com
126700-01C 15
INSTALLING SCREEN
1. Slide round end of screen rod into rings at
top of screen. Attach one push-on nut to end
of rod before attaching last ring of screen.
2. Insert the round end screen rod into hole
on the left and right side of smoke shelf
(Figure 14).
3. Mount at end of screen rod with #10 x 5/8"
to center of smoke shelf.
4. Install other screen rod in same manner.
REFRACTORY PANEL INSTALLATION
Continued
Gas line hook up should be done by your
supplier or a qualied service person.
NOTE: Before you proceed, make sure your
gas supply is turned off.
Use only a 1/2" black iron pipe and appropri-
ate ttings.
1. Remove knockout indentation on refrac-
tory or rebrick wall located above refrac-
tory hearth oor. Knockout indentation
must be rmly tapped with any solid object
such as a 1/2" dowel until it is released.
Remove fragmented portions of refractory
(see Figure 15).
2. Remove gas line cover plate located on
either side of replace and pull out insula-
tion from gas line conduit sleeve. Save
insulation for reuse. Replace screws.
3. Run a 1/2" black iron gas line into replace
through the rear at gas line conduit sleeve (if
using a raised platform, add height). Provide
sufcient gas line into replace chamber for
tting connection (see Figure 16).
NOTE: Secure incoming gas line to wood
framing to provide rigidity for threaded end.
4. Repack insulation around gas line and into
sleeve opening. Seal any gaps between
gas line and refractory knockout hole with
refractory cement or commercial furnace
cement, Install the gas appliance or cap-off
gas line if desired.
Figure 15 - Gas Line Access
Seal
Opening
with
Refractory
Cement
Outside of
Fireplace
Gas Line
Conduit
Repack
Insulation
Incoming
1/2" Black
Iron Pipe
Side
Firebrick
Finished
Side
Provide Enough
Threaded
End for Fitting
Connection
Figure 16 - Gas Line Installation
Side
Firebrick
Finished
Side
Brick with
Access
Hole
Outside of
Fireplace
Gas Line
Conduit
Insulation
Gas
Conduit
Cover
1/2" Dowel
Remove
Knockout
Figure 14 - Installing Fireplace Screen
Rating
Plate
Hole for Screen
Rod
Leading
Bricks
OPTIONAL GAS LINE INSTALLATION

SuperiorFireplaces.us.com 126700-01C
16
OPTIONAL GAS LINE INSTALLATION
Continued
CAUTION: All gas piping
and connections must be tested
for leaks after the installation is
completed. After ensuring that
the gas valve is on, apply soap
and water solution to all con-
nections and joints. Bubbles
forming show a leak. Correct
all leaks at once. DO NOT USE
AN OPEN FLAME FOR LEAK
TESTING AND DO NOT OPER-
ATE ANY APPLIANCE IF A LEAK
IS DETECTED. LEAK TESTING
SHOULD BE DONE BYA QUALI-
FIED SERVICE PERSON.
WARNING: If the replace
has been used for wood burning,
the rebox and chimney must be
cleaned of soot, creosote and
ashes be a qualied chimney
cleaner. Creosote will ignite if
heavily heated.
WARNING: When using a
decorative vented gas log, the
damper must be removed or
permanently locked in the fully
openposition andthe glassdoors
must be in the fully open position.
WARNING: Do not operate an
unvented gas log set in this re-
place with the chimney removed.
If you install a decorative gas appliance
(vented gas log), the decorative gas appliance
must comply with the Standard for Decorative
Gas Appliance for Installation in Solid Fuel
Burning Fireplaces, ANS Z21.60 or Z21.84
and shall also be installed in accordance with
the National Fuel Gas Code, ANSI 7223NFPA
54 latest edition.
If you wish to install an unvented (vent-free)
gas log set, only unvented gas log sets which
have been found to comply with the standard
for unvented room heaters, ANSI Z21.11.2 are
to be installed in this replace.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• appliance will not produce specied heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If
so, contact your local propane/LP or natural
gas supplier.
TECHNICAL SERVICE
You may have further questions about instal-
lation, operation, or troubleshooting. Please
contact your IHP dealer for any questions or
concerns. When contacting your dealer please
have your model and serial numbers of your
appliance ready. You can also visit our web site
at SuperiorFireplaces.us.com.
REPLACEMENT PARTS
See Pages 18-22 for a complete replacement parts
list. Use only parts supplied from the manufacturer.
Normally, all parts should be ordered through your
IHP distributor or dealer. Parts will be shipped at
prevailing prices at time of order.
When ordering repair parts, always give the following
information:
1. The model number of the appliance.
2. The serial number of the appliance.
3. The part number.
4. The description of the part.
5. The quantity required.
6. The installation date of the appliance.
If you encounter any problems or have any ques-
tions concerning the installation or application of
this appliance, please contact your dealer.

SuperiorFireplaces.us.com
126700-01C 17
ACCESSORIES
Purchase these appliance accessories from your local dealer. If they can not supply these
accessories, contact IHP at SuperiorFireplaces.us.com for referral information. You can also
write to the address listed on the back Page of this manual.
Only kits supplied by IHP shall be used in the installation of this appliance. Use of
non-approved accessory/part kit(s) can result in poor performance and safety hazards.
OPTIONAL OUTSIDE AIR KIT FOR
FLOOR INSTALLATION
Cat. No. F1093, Model AK4F
Outside Air Kit Collar, Hood & 3' Flex for
Floor Venting
Cat. No. F1094, Model AK4B
50 piece Bulk Outside Air Kit - Collar Only Kit
OPTIONAL OUTSIDE AIR KIT FOR
SIDEWALL INSTALLATION
Cat. No. F1091, Model AK4
4" Air Kit with Collar, Hood & 3' Flex
Cat. No. F1092, Model AK4X
4" Air Kit, Collar & Hood Only
Creamer H8176 BSK-CR
Rust H8177 BSK-RT
Cappuccino H8178 BSK-CP
REFRACTORY STAIN KITS
Use the Refractory Stain Kits to give white refractory
panels a new look.
Kit includes foam roller, roller handle, paint tray,
and one can of stain. Available stain colors are
Creamer (ivory), Rust (terra cotta), and Cappuc-
cino (rosy taupe).
Creamer Rust Cappuccino
Optional kit provides additional air to reduce
build-up of condensation that occurs in
today's tightly constructed homes.

SuperiorFireplaces.us.com 126700-01C
18
PARTS
36", 42", AND 50" MODELS
11
10
11
13
14
15/16
14
3
22
20
21
20
1
19
514
15/16
13
12
11
9
7
6
8
17
2
12
18
4
Cat. No. Model Interior
F0277 VRT4536WS White Stack
F0278 VRT4536WH White Herr.
F0279 VRT4542WS White Stack
F0280 VRT4542WH White Herr.
F0281 VRT4550WS White Stack
F0282 VRT4550WH White Herr.

SuperiorFireplaces.us.com
126700-01C 19
KEY
NO. PART NO. DESCRIPTION QTY.
1 ** Face Assembly • • • 1
2 ** Firebox Bottom Assembly • • • 1
3 ** Firebox Bottom • • • 1
4 ** Firebox Surround • • • 1
5 ** Insulation Pan Support • • • 1
6 ** Insulation Pan • • • 1
7 ** Top Insulation • • • 1
8 RP110454-03 Fireplace Top 36" • 1
RP110454-02 Fireplace Top 42" • 1
RP110454-01 Fireplace Top 50" • 1
9 J6997 Standoff • • • 4
10 ** Fireplace Surround Assembly • • • 1
11 J4362 Clearance Spacer • • • 6
12 J5329 Fireplace Handle Bracket • • • 4
13 J6900 Outside Air Cover Plate • • • 2
14 J6934 Gas Conduit Cover • • • 4
15 J4368 Conduit One • • • 2
16 J4369 Conduit Two • • • 2
17 ** Heat Shield Support • • • 1
18 F3234 Ash Box Assembly • • • 1
19 ** Firebox Top • • • 1
20 J4342 Screen 36" • 2
J4341 Screen 42" • 2
J4340 Screen 50" • 2
F3235 Screen 36" Stainless 2
F3236 Screen 42" Stainless 2
F3237 Screen 50" Stainless 2
21 J6928 Screen Rod 36" • 2
J4391 Screen Rod 42" • 2
J4390 Screen Rod 50" • 2
J5310 Screen Rod 36" Stainless 2
J5308 Screen Rod 42" Stainless 2
J5309 Screen Rod 50" Stainless 2
22 J4350 Hood 50" • 1
J4351 Hood 42" • 1
J4352 Hood 36" • 1
J4355 Hood Stainless 36" 1
J4354 Hood Stainless 42" 1
J4353 Hood Stainless 50" 1
PARTS AVAILABLE NOT SHOWN
J4357 Side Firebrick Wall Spacers • • 4
RP114913-01 Rear Firebrick Wall Spacers • • 2
RP114913-01 Rear Firebrick Wall Spacers • 6
** Not a eld replaceable part.
36"
42"
50"
PARTS
This list contains replaceable parts used in your rebox. When ordering parts, follow the
instructions listed under Replacement Parts on Page 16 of this manual.

SuperiorFireplaces.us.com 126700-01C
20
PARTS
36", 42", AND 50" MODELS
Picture may vary from actual
1
2
5
3
4
6
6
1
2
3
4
5
6
7
7
WARNING
REFRACTORY PANELS
LIFTING HAZARD
SINGLE - PERSON LIFT
COULD CAUSE INJURY.
USE ASSISTANCE WHEN
MOVING OR LIFTING.
IMPORTANT: Installation of refractory panels
should be done after the fireplace is placed in a
permanent location.