Sure Heat Charlestone VFBC36A, Charlestone VFBC42A Installation And Operating Manual
T H E C H A R L E S T O N S E R I E S
Vent Free Universal Firebox VFBC36A VFBC42A
Installation and Operating Manual
Z21.91 2007
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
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
Carefully review the instructions supplied
with decorative type unvented room heater
for the minimum fireplace size requirements
DO NOT INSTALL AN APPLIANCE IN THIS
FIREBOX UNLESS THIS FIREBOX MEETS
THE MINIMUM DIMENSIONS REQUIRED
FOR THE INSTALLATION
INSTALLER:
Leave this manual with the appliance.
CONSUMER:
Retain this manual for future reference.
Congratulations!
INSTALLER / CONSUMER
SAFETY INFORMATION
Read and save these instructions
This book contains your installation instructions and should be kept in a safe place. For you to realize
all the advantages and use of the reliable service that has been engineered into your Sure Heat
Manufacturing fireplace, you must carefully follow all of the instructions contained in this book regarding installation and operation of the fireplace.
These instructions should be read carefully in their entirety before beginning installation of the
fireplace.
It is suggested that you wear work gloves and safety glasses to protect your hands and eyes when
installing your fireplace. NOTE: Authorities having jurisdiction (i.e. building inspectors, fire marshals,
etc.) should be consulted before installation to determine the need to obtain a permit.
These fireboxes are approved as universal fireboxes and can be paired with any ANSI Z21.11.2
approved vent free gas log set. The vent free log manufacturer’s instructions, including their
required dimensional clearances for firebox size, must be followed.
Refer to the manual that is packed with the log set for operating instructions.
General Installation Information
In planning the installation for the appliance it is necessary to determine where the unit is to be installed
and whether optional accessories are desired. Gas supply piping should also be planned. The following
steps represent the normal sequence of installation. Each installation is unique, however, and might
require a different sequence.
1. Position firebox prior to framing or into prepared framing.
2. Make electrical connections (if desired) for blower or other line voltage options.
3. Plumb gas line. (Gas connections should only be performed by an experienced,
licensed/certified tradesman).
4. Install vent-free gas log heater per the instructions provided with the vent-free gas log heater.
5. Complete finish wall material, surround and optional hearth extension to your individual taste.
Table of Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Hearth Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Fireplace Framing Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Locating the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Gas Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Drafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installing the Firebox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Hearth Extension
. . . .
Finishing the Fireplace
Optional Junction Box Installation 12
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
11
Safety Information
IMPORTANT
Read these instructions carefully before installing or trying to
operate a vent-free gas heater in this firebox.
• Any change to this heater or its
controls can be dangerous.
• Improper installation or use of the heater can
cause serious injury or death from fire, burns,
explosion or carbon monoxide poisoning.
• Do NOT allow fans to blow directly into the
fireplace. Avoid any drafts that alter burner
flame patterns.
1. Due to high temperatures, the appliance should be located out of
traffic and away from furniture and draperies.
2. Children and adults should be alerted to the hazard of high
surface temperature and should stay away to avoid burns or
clothing ignition.
3. Young children should be carefully supervised when they are in
the same room with the appliance.
4. Do not place clothing or other flammable material on or near
the appliance.
5. Any safety screen or guard removed for servicing an appliance
must be replaced prior to operating the heater.
6. Installation and repair should be done by a qualified
service person.
7. To prevent malfunction and/or sooting, an unvented gas heater
should be cleaned before use at least annually by a
professional service person. More frequent cleaning may be
required due to excessive lint from carpeting, bedding material,
etc. It is imperative that control compartments, burners and
circulating air passages be kept clean.
8. CARBON MONOXIDE POISONING: Early signs of carbon
monoxide poisoning are similar to the flu with headaches,
dizziness and/or nausea. If you have these signs, obtain fresh
air immediately. Have the heater serviced as it may
operating properly.
9. The installation must conform with local codes or, in the absence
of local codes, with the National Fuel Gas Code, ANSI
Z223.1/NFPA54.
10. This unit complies with ANSI Z21.91.2007 ventless firebox
enclosures for gas-fired unvented decorative room heaters.
11. Do not install heater in a bathroom or bedroom.
12. Correct installation of the logs, proper location of the heater,
and annual cleaning are necessary to avoid potential problems
with sooting. Sooting, resulting from improper installation or
operation, can settle on surfaces outside the fireplace. See log
placement instructions for proper installation.
13. Avoid any drafts that alter burner flame patterns. Do not allow
fans to blow directly into fireplace. Do not place a blower inside
burn area of firebox. Ceiling fans may create drafts that alter
burner flame patterns. Sooting and improper burning will occur.
not be
14. Candles, incense oil lamps, etc. produce
combustion byproducts including soot. Vent-free appliances will
not filter or clean soot produced by these types of products. In
addition, the smoke and/or aromatics (scents) may be burned
in the vent-free appliance which can produce odors. It is
recommended to minimize the use of candles, incense, etc.
while the vent-free appliance is in operation.
15. An unvented gas-fired heater uses air (oxygen) from
which it is installed. Provisions for adequate combustion and
ventilation air must be provided. See installation guidelines.
16. Keep room area clear and free from combustible materials,
gasoline and other flammable vapors and liquids.
17. Unvented gas heaters are a supplemental zone heater. They are
not intended to be a primary heating appliance.
18. Unvented gas heaters emit moisture into the living area. In most
homes of average construction, this does not pose a problem.
In houses of extremely tight construction, additional mechanical
ventilation is recommended.
19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain oils, films
or bonding agents. These chemicals are not harmful but may
produce annoying smoke and smells as they are burned off
during the initial operation of the appliance, possibly causing
headaches, or eye or lung irritation. This is a normal and
temporary occurrence.
The initial break-in operation should last two to three hours with
the burner at the highest setting. Provide maximum ventilation
by opening windows or doors to allow odors to dissipate. Any
odors remaining after this initial break-in period will be slight
and will disappear with continual use.
20. Input ratings are shown in BTU per hour and are for elevations
up to 2,000
should be reduced 4% for each 1,000 feet above sea level.
Refer to the National Fuel Gas Code.
21. The appliance and its appliance main gas valve must be
disconnected from the gas supply piping systems during any
pressure testing of that system at test pressures in excess of
1/2 psig (3.5kPa).
22. The appliance must be isolated from the gas supply piping
system by closing its equipment shutoff valve during any
pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig (3.5 kPa).
23. Do not use this room heater if any part has been under water.
Immediately call a qualified service technician to inspect the
room heater and to replace any part of the control system and
any gas control which has been under water.
24. Never burn solid fuels in a fireplace where an unvented room
heater is installed.
25. Always have a fireplace screen in place when the appliance is in
operation, and unless other provisions for combustion air are
provided, the screen shall have an opening(s) for induction of
combustion air.
26. Do not fill spaces around the firebox with insulation or other
materials. These spaces must
firebox from coming in contact with combustible materials.
feet. For elevations above 2,000 feet, input ratings
be maintained to prevent the
the room in
3
Product Features
Do not attempt to burn solid wood, fuels, vented gas log sets, or any other combustible in this
unvented firebox. Also, do not install a vent-free gas log set in this firebox if the minimum
clearance and height requirements of the log set are too large for this firebox.
You have purchased a vent-free firebox. This installation manual will enable you to obtain a safe, efficient
and dependable installation of your vent-free firebox system.
Do not alter or modify the firebox or its components under any circumstances. Any modifications or alteration
of the firebox system, including but not limited to the firebox and accessories, may void the warranty, listings
and approvals of this system, and could result in an unsafe and potentially dangerous installation.
Before You Start
Carefully inspect the contents for shipping damage. If any parts are missing or damaged, immediately inform
the dealer from whom you purchased the appliance. Do not attempt to install any part of the appliance unless
you have all the parts in good condition.
Make Sure That You Have Received All Parts
Check your packing list to verify that all listed parts have been received. You should have the following:
xoberiF saG eerF-tneV .1 or Mantel Guard/f swercs latem teehs )(6.4
Mantel Guard (Hood) .2
launaM gnitarepO dna noitallatsnI .3
Six
Hood and Screen Mesh Rod installation.
5. Two (2) Screen Mesh Rods, and Two (2) Screen
Mesh Panels
Items You Will Need For Installation
Tools
• Flat Head Screwdriver • Square
• Hammer • Saw and/or saber saw
• Tee Joint • Electric drill and bits
• Level • Pipe wrench
• Measuring Tape • Piping complying with
• Chisel
• devorppa tnalaes epiP •sreilP
Notice:
Illustrations shown in this manual reflect "typical" installations with nominal dimensions and are for design
and framing reference only. Actual installations may vary due to individual design preferences. However,
always maintain minimum clearances to combustible materials and do not violate any specific installation
requirements.
local codes
for use with propane/L.P.G.
(resistant to sulfer compounds)
Building Supplies
• Framing materials
• Wall finishing materials
• Caulking material
(non-combustible)
• Fireplace surround materials
(non-combustible)
“J” Box accessory
•
(If there is a chance a blower
or other line-voltage accessory
will be used in the future)
4
Specifications
A
B
VFBC 36A, VFBC 42A
Design Certified
Certified To Z21.91 Ventless Firebox Enclosures For
Gas Fired Decorative Type Unvented Room Heaters
For use with Any ANSI Z21.11.2 Unvented Gas
Log Sets (Providing the required firebox size does
not exceed the dimensions of this enclosure)
MODEL
VFBC36A
Hearth Dimensions
Front Width
(Brick to Brick)
A
36"
(762
mm)
C
Back Width
(Brick to Brick)
B
22.5"
(406 mm)
Fig. 1: Firebox
Internal
Dimensions
Hearth
Depth
C
16.75"
(425.5 mm)
VFBC42A
42"
(1066.5 mm)
(698.5 mm)
5
27.5"
16.75"
(425.5 mm)
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