Superior VRT43STWS, VCT43STWS Installation And Operation Instructions Manual
Installation and Operation Instructions
PFS
US
SuperiorTM Unvented (Vent-Free) Universal Firebox
P/N 126703-01 Rev.A 02/2014
P126703-01
Models
®
VRT43STWS VCT43STWS
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.
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 qualied installer,
service agency or the gas supplier.
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 4
Unpacking............................................................ 4
Product Features ................................................. 4
Product Specications ......................................... 5
Locating Firebox ................................................. 5
Air for combustion and Ventilation ....................... 6
Installation ........................................................... 8
Operating Guidelines and Maintenance
Instructions ..................................................... 16
Replacement Parts ............................................ 16
Technical Service............................................... 17
Accessory .......................................................... 17
Parts .................................................................. 18
Warranty ............................................................ 20
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.
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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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, explosion, electrical shock and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
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.
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SAFETY
Continued
Due to high temperatures, the
appliance should be located out
of trafc 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 children 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 efcient.
1. This rebox shall not be installed in a
bedroom or bathroom.
2. Never install the rebox
• in a recreational vehicle
• where curtains, furniture, clothing or
other ammable objects are less than
42" from the front, top or sides of the
rebox
• in high trafc areas
• in windy or drafty areas
3. Do not use this rebox as a wood-burning
replace. Use only decorative unvented
room appliances (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. Use only the provided hoods accessories.
See Accessories on page 17.
6. Vent-free gas log appliances installed in
this rebox require fresh air ventilation to
run properly. See Air for Combustion and
Ventilation, page 6.
7. Do not run rebox
• where ammable liquids or vapors are
used or stored
• under dusty conditions
8. Do not use this rebox to cook food or
burn paper or other objects.
9. Never place any objects in rebox or on
logs.
10. Turn rebox off and let cool before servicing. Only a qualied service person should
service and repair rebox.
11. Operating vent-free logs in a rebox above
elevations of 4,500 feet could cause pilot
outage.
12. Do not use the rebox if it has been under water due to the shock hazard that
could result with the blower accessary (if
installed) in place.
13. Provide adequate clearances around air
openings.
The rebox canopy (hood) must
not be modied or replaced
with a canopy (hood) that may
be provided with the unvented
decorative room heater.
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LOCAL CODES
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 ANS Z223.1/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. Remove all protective packaging from
inside rebox. Carefully lift the rebox off
the bottom corrugated tray.
2. Carton should contain 2 deective hoods
and hardware packet in addition to rebox
assembly. If items are missing, inform
dealer where you bought rebox.
3. Check rebox for any shipping damage.
If rebox is damaged call INNOVATIVE
HEARTH PRODUCTS at 1-800-655-2008
for replacement parts before returning to
dealer.
PRODUCT FEATURES
OPERATION
This rebox is designed for use with approved
ANS Z21.11.2 decorative type unvented
room appliances. (Physical size limitations
apply. Refer to minimum rebox requirements
supplied with log appliance.) It requires no
outside venting or chimney making installation
easy and inexpensive. When used without
the blower, the rebox requires no electricity
making it ideal for emergency backup heat.
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Massachusetts.
Sellers of unvented propane or natural
gas-red supplemental room appliances
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.
NOTICE: The rebox identication label (including model number, serial number, clearances,
etc.) is located underneath the
heat shield. See Figure 19, page
16.
BLOWER ACCESSORY
This rebox will accept the GA3750A accessory. The variable blower allows you to
select the fan speed you desire. The blower
circulates heated air from the rebox into the
room. Use of blower is optional.
BRICK LINER
This rebox features a concrete brick liner. As
with all concrete liners, this liner may develop
slight cracks when exposed to heat. These
cracks will not affect the performance of the
rebox or vent-free gas logs.
HEAT DEFLECTIVE HOOD
Two (2) black painted steel hoods come
standard with the unit, which must be installed
for a safe operation.
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PRODUCT SPECIFICATIONS
4 1/4"
3
1
/8"
5
12"
4"
1 1/4"
1/2"
5/8"
20 1/2"
5 1/2"
11
1
/2"
2
1
/4"
40"
17 1/2"
37 1/2"
1
1
/2"
3"
24"
36 1/2"
42 1/2"
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 the rebox will be located. Allow for
wall and ceiling clearances (see Installa-
tion Clearances, page 9).
2.
Everything needed to complete installation.
3. This model CANNOT be installed in a
bedroom or bathroom.
4. Proper air for combustion and ventilation.
5. Consider a location where heat output
would not be affected by drafts, air condition ducts, windows or doors.
6. A location that minimizes modications
on existing framing will make installation
easier.
Projected installations can extend any
distance into the room. A projection may
be ideal as a partition between two otherwise common areas when added to an
existing, nished wall (see Figure 2).
Figure 1 - Dual-Sided Firebox
LOCATING FIREBOX
Internal wall installation provides a
discreet viewing option between two
adjacent rooms or within an added wall
to subdivide an oversize room.
Figure 2 - Projected Installation
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AIR FOR COMBUSTION AND VENTILATION
WARNING: This appliance
shall not be installed in a room
or space unless 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 insure proper fresh air for this and
other fuel-burning appliances in
your home.
Today’s homes are built more energy efcient
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
efcient, 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, 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 appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National
Fuel Gas Code ANS Z223.1/NFPA 54,Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 6 through 8 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 dened as
construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of one
perm (6 x 10
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 of the three criteria
above, you must provide additional fresh
air. See Ventilation Air From Outdoors,
page 8.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow for Firebox Location,
page 7.
Conned and Unconned Space
The National Fuel Gas Code ANS Z223.1/
NFPA 54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu/hr (4.8 m3 per kw) of the aggregate
input rating of all appliances installed in that
space and an unconned space as a space
whose volume is not less than 50 cubic feet
per 1,000 Btu/hr (4.8 m3 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 unconned space.
This appliance shall not be installed in a
conned 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.
-11
kg per pa-sec-m2) or less
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126703-01A6
AIR FOR COMBUSTION AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW
FOR FIREBOX LOCATION
Determining if You Have a Conned or
Unconned Space
Use this work sheet to determine if you have
a conned or unconned space.
Space: Includes the room in which you will
install appliance 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 determine
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 appliances
in the space.
Gas water appliance* __________ Btu/Hr
Gas furnace __________ Btu/Hr
Vented gas appliance __________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 appliance __________ Btu/Hr
Gas rebox logs + _________ Btu/Hr
Total = _________ Btu/Hr
40,000
39,000
79,000
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 conned
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 work sheet, adding the space
of an adjoining room. If the extra space
provides an unconned space, remove
door to adjoining room or add ventilation
grills between rooms. See Ventilation Air
from Inside Building, page 8.
B. Vent room directly to the outdoors. See
Ventilation Air from Outdoors, page 8.
C. Install a lower Btu/Hr gas log appliance, if
lower Btu/Hr size makes room unconned.
If the actual Btu/Hr used is less than the
maximum Btu/Hr the space can support, the
space is an unconned space. You will need
no additional fresh air ventilation.
WARNING: If the area in which
the appliance may be operated
does not meet the required volume for indoor combustion air,
combustion 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.
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