Superior VRT4032WS User manual

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: 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.
WARNING: If the information in these instructions 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.
Installation and Operation Instructions
SuperiorTM Unvented (Vent-Free) Universal Firebox
P/N 126709-01 Rev.A 02/2014
PFS
®
US
Models
VRT4032WS
VRT4032WH
VRT4032RS
VRT4032RH
VRT4036WS
VRT4036WH
VRT4036RS
VRT4036RH
VRT4042WS
VRT4042WH
VRT4042RS
VRT4042RH
P126709-01

www.SuperiorFireplaces.US.com 126709-01A2
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 3
Product Features................................................. 4
Locating Firebox.................................................. 4
Product Specications......................................... 5
Air For Combustion and Ventilation..................... 7
Installation ........................................................... 9
Replacement Parts............................................ 14
Technical Service............................................... 14
Accessories ....................................................... 15
Parts .................................................................. 16
Warranty ............................................................ 20
WARNING: Do not allow fans
to blow directly into the rebox.
Avoid any drafts that alter burner
ame patterns. Ceiling fans can
create drafts that alter burner
ame patterns. Altered burner
patterns can cause sooting.
SAFETY
This appliance may be installed
in an aftermarket,* permanently
located, manufactured (mobile)
home, where not prohibited by
local codes.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
This firebox has been tested
under Z21.91b-2007 for use
with approved ANSI Z21.11.2
decorative type unvented room
heater.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate or service this replace.
Improper use of this replace
can cause serious injury or
death from burns, re, explo-
sion, electrical shock and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury or
property damage. Refer to this manual for correct in-
stallation and operational procedures. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
WARNING: Any change to
this rebox or its controls can
be dangerous.
WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not ap-
proved for use with this rebox.

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126709-01A 3
Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects in the rebox or on logs.
Firebox front and screen be-
comes very hot when running
rebox. Keep children and adults
away from hot surfaces to avoid
burns or clothing ignition. Fire-
box will remain hot for a time
after shutdown. Allow surfaces
to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with rebox.
Keep the replace area clear and
free from combustible materials,
gasoline, and other ammable
vapors and liquids.
You must operate this replace
with the provided fireplace
screen and hood in place. Make
sure these parts are in place
and screens are closed before
running installed gas log heater.
Replace hood with INNOVATIVE
HEARTH PRODUCTS model
109511-01 50", 109511-02 42",
or 109511-03 36" only. This hood
has been designed to keep the
operation of your replace safe
and efcient.
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 rock wool. Using
these added items can cause sooting.
3. Use only the provided hood. See Parts,
page 18.The rebox canopy (hood) must
not be modied or replaced with a canopy
(hood) that may be provided with the
unvented decorative room heater.
4. Vent-free gas log heaters installed in these
reboxes require fresh air ventilation to
run properly. See Air for Combustion and
Ventilation, page 8.
5. Do not run vent-free heaters installed in
these reboxes
• where ammable liquids or vapors are
used or stored
• under dusty conditions
6. Do not use this rebox to cook food or
burn paper or other objects.
7. Turn unit off and let cool before servicing.
Only a qualied service person should
service and repair rebox.
8. Operating vent-free heaters installed in
these reboxes above elevations of 4,500
feet could cause pilot outage.
9. Do not use the rebox if it has been
under water.
10. 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.
11. Provide adequate clearances around air
openings.

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PRODUCT FEATURES
OPERATION
This rebox has been tested and approved
under ANSI Z21.91 for use with any gas
log approved to ANSI Z21.11.2 for indoor
applications and ANSI Z21.97 for outdoor
applications. (Physical size limitations apply.
Refer to minimum rebox requirements sup-
plied with log heater.) It requires no outside
venting or chimney making installation easy
and inexpensive. When used without blower,
heater installed in rebox requires no electric-
ity making it ideal for emergency backup heat.
REFRACTORY BRICK LINER
Your rebox may feature a concrete refractory
brick liner. As with all concrete liners, this liner
may develop slight cracks when exposed to
heat. These cracks will not affect performance
of replace or vent-free gas logs.
OUTSIDE AIR KIT ACCESSORY
An optional AK4 air kit provides additional
outdoor air to improve burner efciency and
reduce build-up of condensation in the living
space. Follow instructions included with air kit.
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 10).
2. Everything needed to complete replace
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 7).
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Mas-
sachusetts.
Sellers 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.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.
LOCAL CODES
Install and use 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*. Firebox must
be electrically grounded in accordance with
the National Electrical Code, ANSI/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

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126709-01A 5
3 9/16"
3 7/16"
8 1/8"
8 1/8"
10 1/2"
9 3/4"
PRODUCT SPECIFICATIONS
23
7
/
8
"
3
9
/
16
"
17
3
/
8
"
29
7
/
16
"
34
7
/
16
"
36
3
/
8
" Indoor
37
3
/
8
" Indoor/Outdoor
Standoffs
22
7
/
16
"
32
1
/
4
"
36
1
/
2
"
8
15
/
16
"
9
3
/
4
"
19
3
/
8
"
16
5
/
8
"
1
9
/
16
"
3
9
/
16
"
8
1
/
8
"
2
13
/
16
"
8
5
/
8
" Indoor
8
1
/
4
" Indoor/Outdoor
4
1
/
4
"
Built-In
Side
Nailing
Flanges
Square
Gas Line
Access
Holes
5/8"
Figure 1 - Firebox Dimensions (32" Models)
Right Side View
Firebox Top View
Front View
32" MODELS
Outside Air
Kit Location
(Optional)
Left Side
View with
Air Kit
Back View
Top View
23
7
/
8
"
3
9
/
16
"
17
3
/
8
"
29
7
/
16
"
34
7
/
16
"
36
3
/
8
" Indoor
37
3
/
8
" Indoor/Outdoor
Standoffs
22
7
/
16
"
32
1
/
4
"
36
1
/
2
"
8
15
/
16
"
9
3
/
4
"
19
3
/
8
"
16
5
/
8
"
1
9
/
16
"
3
9
/
16
"
8
1
/
8
"
2
13
/
16
"
8
5
/
8
" Indoor
8
1
/
4
" Indoor/Outdoor
4
1
/
4
"
Built-In
Side
Nailing
Flanges
Square
Gas Line
Access
Holes
5/8"

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13
11
/
16
" (36" Models)
15
9
/
16
" (42" Models)
20
1
/
2
"
(36" Models)
24
1
/
8
"
(42" Models)
2
9
/
16
"
2
9
/
16
"
3
13
/
16
"
26
3
/
4
" (36" Models)
29
5
/
8
" (42" Models)
35" (36" Models)
42" (42" Models)
40" (36" Models)
44
1
/
4
" (42" Models)
43"(36" Models)
51
1
/
8
"(42" Models)
29
1
/
8
" (36" Models)
36
1
/
8
" (42" Models)
8
1
/
8
"
(36" Models)
9"
(42" Models)
21
1
/
8
" (36" Models)
23
1
/
16
" (42" Models)
41
1
/
8
"(36" Models)
48
1
/
4
"(42" Models)
5/8"
36
1
/
8
" (36" Models)
40" (42" Models)
Built-In
Side
Nailing
Flanges
PRODUCT SPECIFICATIONS
Continued
Figure 2 - Firebox Dimensions (36" and 42" Models)
36" AND 42" MODELS
Note: If only one dimension is shown, dimension is the same for both 36" and 42" models.
Firebox Top View
13
11
/
16
" (36" Models)
12
3
/
8
" (42" Models)
7
1
/
4
" (36" Models)
9" (42" Models)
2
9
/
16
"
10
1
/
2
"
(36" Models)
12
1
/
2
"
(42" Models)
Outside Air
Kit Location
(Optional)
Left Side
View with
Air Kit
13
11
/
16
" (36" Models)
15
9
/
16
" (42" Models)
20
1
/
2
"
(36" Models)
24
1
/
8
"
(42" Models)
2
9
/
16
"
2
9
/
16
"
3
13
/
16
"
26
3
/
4
" (36" Models)
29
5
/
8
" (42" Models)
35" (36" Models)
42" (42" Models)
40" (36" Models)
44
1
/
4
" (42" Models)
43"(36" Models)
51
1
/
8
"(42" Models)
29
1
/
8
" (36" Models)
36
1
/
8
" (42" Models)
8
1
/
8
"
(36" Models)
9"
(42" Models)
21
1
/
8
" (36" Models)
23
1
/
16
" (42" Models)
41
1
/
8
"(36" Models)
48
1
/
4
"(42" Models)
5/8"
36
1
/
8
" (36" Models)
40" (42" Models)
Built-In
Side
Nailing
Flanges
Right
Side
View
Front View Back View
Top View

www.SuperiorFireplaces.US.com
126709-01A 7
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a room or
space unless the required vol-
ume of indoor combustion air
is provided by the method de-
scribed 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 insure
proper fresh air for this and
other fuel-burning appliances
in your home.
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. Home owners weather
strip and caulk around windows and doors to
keep cold air out and warm air in. During heat-
ing months, home owners 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, reboxes, 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 fuel-burning appli-
ances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion 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
Information on page 7 through 9 will help you
classify your space and provide adequate
ventilation.
Unusually Tight Construction
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 dened as
construction where:
a. walls and ceilings exposed to outside
atmosphere have a continuous water
vapor retarder with a rating of one
perm (6 x 10-11 kg per pa-sec-m2) 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 plumbing, electrical and gas lines
and at other openings.
If your home meets all three criteria above,
you must provide additional fresh air. See
Ventilation Air From Outdoors, page 9.
If your home does not meet all three criteria
above, proceed to Determining Fresh-Air
Flow for Firebox Location, page 8.
Conned and Unconned Space
The National Fuel Gas Code, ANSI Z223.1/
NFPA 54 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 m3 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 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 un-
conned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.

www.SuperiorFireplaces.US.com 126709-01A8
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Conned or
Unconned Space
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) = 3168 cu.
ft. (volume of space)
If additional ventilation to adjoining room
is supplied 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 deter-
mine the maximum Btu/Hr the space can
support.
_____ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 3168 cu. ft. (volume of space) x
20 = 63,360 (maximum Btu/Hr the space
can support)
3. Add the Btu/Hr of all fuel burning appli-
ances in the space.
Vent-free heater _______ 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 appli-
ances. Direct-vent draws combustion
air from the outdoors and vents to the
outdoors.
Example:
Gas water heater _________ Btu/Hr
Vent-free heater + ________ Btu/Hr
Total = ________ Btu/Hr
AIR FOR COMBUSTION AND VENTILATION
Continued
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 above example is a conned
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup-
port. 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, page 9.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 9.
C. Install a lower Btu/Hr heater, if lower
Btu/Hr size makes room unconned.
If the actual Btu/Hr used is less than the
maximum Btu/Hr the space can support, the
space is an unconned space. You will need
no additional fresh air ventilation.
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/NFPA54,
the International Fuel Gas Code,
or applicable local codes.
40,000
39,000
79,000

www.SuperiorFireplaces.US.com
126709-01A 9
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
adjoining room (see option 3, Figure 3). Follow
the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
AIR FOR COMBUSTION AND VENTILATION
Continued
Figure 4 - Ventilation Air from Outdoors
Figure 3 - Ventilation Air from Inside
Building
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 thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
INSTALLATION
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
WARNING: A qualied ser-
vice person must install rebox.
Follow all local codes.
WARNING: Never install the
rebox
• in a bedroom or bathroom*
• in a recreational vehicle
• where curtains, furniture, cloth-
ing or other ammable objects
are less than 36" from front or
42" from top of rebox. For
side clearances see Figure 5,
page 10
• in high trafc areas
• in windy or drafty areas
* Unless the installed log set is
rated at 10,000 Btu/Hr or less.
CAUTION: Log heaters
installed in this rebox create
warm air currents. These cur-
rents move heat to wall surfaces
next to rebox. Installing rebox
next to vinyl or cloth wall cover-
ings or operating rebox where
impurities (such as, but not
limited to, tobacco smoke, aro-
matic candles, cleaning uids,
oil or kerosene lamps, etc.) in
the air exist, may discolor walls
or cause odors.

www.SuperiorFireplaces.US.com 126709-01A10
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 Air for Combustion
and Ventilation, page 7.
IMPORTANT: Make sure firebox 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 rear, sides, top or bottom of rebox,
except where standoff spacers are integrally
attached. If standoff spacers are attached to
rebox, these spacers can be placed directly
against wall or framing materials.
Use dimensions shown for rough openings
to create the easiest installation (see Built-In
Firebox Installation, page 11).
INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling and adjoining wall.
Carefully follow these instructions. This will
ensure safe installation.
Minimum Wall and Ceiling Clearances (see
Figure 5)
A. Clearances from side of replace cabinet
to any combustible material and wall
should follow diagram in Figure 5.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from wall. This combus-
tible material must be 4" from side of
replace cabinet (see Figure 5).
B. Clearances from top of rebox opening to
ceiling should not be less than 42".
C. When rebox is installed on carpeting or
other combustible material, other than
wood ooring, rebox should be installed
on a metal or wood panel extending full
width and depth of enclosure.
D. Clearances from bottom of rebox to oor
is 0".
INSTALLATION
Continued
Figure 5 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
These reboxes can be installed as freestand-
ing units against a wall with approved, optional
cabinet mantels (see Accessories, page 15)
or as a built-in unit. Clearances are the same
for either installation method.
CAUTION: Do not install re-
box directly on carpet or vinyl.
Example
Mantel Clearances for Built-In Installation
If placing custom mantel above built-in rebox,
you must meet minimum allowable clearance
between mantel shelf and top of rebox open-
ing shown in Figure 6, page 11. These are
minimum allowable mantel clearances for a
safe installation. Use larger clearances wher-
ever possible to minimize heating of objects
and materials placed on mantel.
CAUTION: Do not allow
vent-free gas log heater to
touch or extend beyond re-
place screen.
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above 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.