Sure Heat VFLB32 Mounting instructions

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
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
Homeowner’s Installation
and Operating Manual
Vent Free Universal Firebox
model numbers VFLB32 VFLB36 VFLB42
Installer:
Leave this manual with the appliance.
Consumer:
Retain this manual for future reference.
THE SAVANNAH SERIES
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

Congratulations!
2
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.
Table of Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Hearth Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fireplace Framing Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14
Locating the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Gas Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Drafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Installing the Firebox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Finishing the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Hearth Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Install Optional Outside Air Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
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. Plumb gas line. (Gas connections should only be performed by an experienced,
licensed/certified tradesman).
3. Install vent-free gas log heater per the instructions provided with the vent-free gas log heater.
4. Complete finish wall material, surround and optional hearth extension to your individual taste.

Safety Information
3
IMPORTANT
Read these instructions carefully before
installing or trying to operate a vent-free gas heater in
this firebox.
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 not be
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 Z21.91.2001 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.
14. Candles, incense oil lamps, etc.
produce combustion byproducts including soot.
Vent-free appliances will not filter or clean soot
produced these types of products. In addition, the
smoke and/or aromatics (scents) may be reburnt
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 the room in 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.
• 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.

Safety Information
4
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 feet. For elevations
above 2,000 feet, input ratings 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 n 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
be maintained to prevent the firebox from coming
in contact with combustible materials.

Before You Start
5
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 the 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 art 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:
1. Vent-Free Gas Firebox 3. Installation and Operating Manual
2. Canopy 4. Five (5) sheet metal screws for canopy.
What You Will Need For Installation
Tools
• Phillips screwdriver • Square
• Hammer • Saw and/or sabersaw
• Tee Joint • Electric drill and bits
• Level • Pipe wrench
• Measuring Tape • Piping complying with
local codes
• Pliers • Pipe sealant approved
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)
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.

Specifications
6
VFLB 32, VFLB 36, VFLB 42
Certified To
Design Certified
Certified To IAS 2-97 Ventless Firebox Enclosures For
Gas Fired Decorative Type Unvented Room Heaters
For use with
Any ANSI Z21.11.2
Unvented Room Heaters
MODEL Front Width (Brick to Brick)
A
Back Width
(Back to Brick)
B
Hearth
Depth
C
VFLB32 29.5"
(749 mm) 16" (406 mm) 17" (432mm)
VFLB36 33.5"
(851 mm) 20" (507 mm) 17" (432mm)
VFLB42 39.5"
(1002 mm) 26" (660 mm) 17" (432mm)
A
B
C
Hearth Dimensions
Fig. 1: Firebox
Internal
Dimensions

Framing Specifications
7
VFLB 32 VFLB 36 VFLB 42
A32" 36" 42"
B30" 30" 30"
C37" 41" 47"
D3" 3" 3"
E38" 38" 38"
F40.15" 40.15" 40.15"
G11.35" 11.35" 11.35"
H20" 20" 20"
J5" 5" 5"
K22" 26" 32"
L21.5" 21.5" 21.5"
M62.5" 66.5" 72.5"
N31.25" 33.25" 36.25"
P44" 47" 51.25"
A
C
B
D
F
E
K
L H
J
G
P
M
N
P
Fig. 2

Installation and Instructions
8
Locating the Fireplace
Figure 3 shows some of the many ways your
fireplace may be installed. Consider the traffic pattern
in your room and the location of doors and windows.
Moving air from ceiling fans, open doors and hot air
grills may cause the flames to soot. If a disturbance is
found that affects the flames, it must be eliminated by
turning off the ceiling fan, closing the door or closing or
moving the hot register. A corner location may be best
where space is limited.
Your fireplace weighs no more than some of your
fine furniture. If the fireplace is located near a load
bearing wall, additional supports to the foundation will
not be necessary.
HEAVY FACINGS SUCH AS BRICK, STONE,
ETC., MAY REQUIRE ADDITIONAL FOUNDATION
SUPPORT. ALTHOUGH THIS UNIT MAY BE
INSTALLED ON COMBUSTIBLE SURFACES, IT
MUST NOT BE INSTALLED ON CARPET OR VINYL.
Gas Line Installation
Plumbing connection should only be
performed by a qualified, licensed plumber. Main
gas supply must be off when plumbing gas line to
fireplace or performing service
Consult all local codes. All gas piping must be
installed to comply with local codes, or in the absence
of local codes, with the latest edition of the national
Fuel Gas Code ANSI Z223.1/NFPA54.
The 1⁄2" gas line may enter either from the left side
or the right side of the firebox. Gas access holes are
provided on both sides of the firebox.
Install a 1⁄2" gas line through the hole provided in
the firebox. Outside the firebox, the gas line connects
to a gas shut-off valve recessed flush into the wall or
floor. The valve should be controlled by a removable
valve key for safety.
An ANSI approved manual shut-off valve, union
and plugged 1⁄8" NPT pressure tapping point must be
installed upstream of the heater.
A sediment trap may be upstream of the heater
to prevent moisture and contaminants from passing
through trap to the heater controls and burners.
Failure to do so could prevent the heater from
operating reliably. Consult applicable codes.
Wall
Full Room Projection
Flush
Partial
Room
Projection
Corner
Room Divider
Fig. 3: Locating the Fireplace

Installation and Instructions
9
An external regulator must be used on all
propane/L.P.G. heaters, in addition to the regulator
fitted to the heater, to reduce the supply tank pressure
to 13" w.c. (maximum). Any copper tubing used to
supply propane/L.P.G. from the tank must be
internally tinned.
NOTE: When connecting propane/L.P.G. vent-free
room heaters, you must use pipe sealant resistant to
propane/L.P.G.
IMPORTANT: Hold heater regulator with a wrench
to prevent movement when connecting to inlet piping.
Check Gas Type: The gas supply must be the
same as stated on eh eater's rating plate. If the gas
supply is different, DO NOT INSTALL THE HEATER.
Contact our dealer for the correct model.
Connecting directly to an unregulated
propane/L.P.G. tank can cause an explosion.
After completing connection, test all gas joints from
the gas meter to the gas heater regulator for leaks.
Using water soap and water solution or a gas sniffer.
DO NOT USE AN OPEN FLAME.
Do not connect directly to natural gas
1/2 PSI or 2 PSI systems. Always make sure natural
gas pressure is regulated 10.5 w.c.
(maximum before operating unit).
Drafts
Do not locate the fireplace in high traffic areas or
areas exposed to high drafts and winds. Locate the
fireplace away from furniture and draperies.
Fireplace Clearances
The fireplace may be placed directly on a
combustible floor, against a combustible wall at
marked clearances or on a raised wooden platform.
If the fireplace is to be installed on a raised
wooden platform, the platform must be a continuous
level surface. The fireplace must be secured in place
so it cannot shift positions. The nailing flanges on the
sides of the firebox make securing it to the framing
easy. They were designed to allow the installation of
wallboard or plywood flush with the face of the
fireplace.
Only the header (Fig. 2, page 7) may rest on the
standoffs on top of the firebox.
When the fireplace is installed over carpeting,
vinyl, tile or any combustible material other than wood
flooring, it must be installed on a metal or wood panel
extending its full width and depth. Alternatively, the
carpeting, vinyl, tile, etc., may be removed from
beneath the fireplace before installing.
COMBUSTIBLE MATERIALS MUST NOT BE
INSTALLED OVER OR TOUCH ANY BLACK PAINTED
SURFACE.

Installation and Instructions
10
A
B
Mantel
Guard
Mantel
Fireplace
Opening
Fig. 4
Mantel Depth
(A) 2" 4" 6" 8" 10"
Clearance
Fireplace
Opening (B) 11" 13" 16" 20" 24"
Fig. 5 Chart
Clearance to Combustible Mantel with Mantel
Guard not in place.
Fig. 6 Chart
Clearance to Combustible Mantel with Mantel
Guard in place.
Fig. 7
Mantel Depth
(A) 2" 4" 6" 8" 10"
Clearance
Fireplace
Opening (B) 6.5" 10" 13" 17" 22"
Clearances
To ensure a safe installation the following
instructions must be carefully observed.
1. Sidewall Clearances: Clearances from the side of
the fireplace opening to any combustible wall
should not be less that 9".
2. Ceiling Clearances: The ceiling height should
not be less than 42" from the top of the
fireplace opening.
3. Mantel Clearances:
a) Noncombustible materials used in this
installation such as slate, marble, tile, etc.
must comply with local ,state ,national codes
and manufactures specifications. Do not install
a combustible material behind sheet metal.
Failure to use noncombustible materials above
the opening as specified in these instructions
may cause damage to the materials used and
create a fire hazard.
b) A heat reducing mantel guard is shipped with
the fireplace. Use of this mantel guard is
required in order to reduce mantel heights as
shown in figure 6. When the mantel guard is
installed, a combustible mantel piece may
project 2" from the wall at 6" above the
fireplace opening. A 6" mantel projection at 13"
above the fireplace opening and a 10" projec-
tion at 22" above the opening. (Fig 4 and 7)
c) If the fireplace has no mantelpiece, then the
heat resistant material must extend upwards a
distance of at least 9" from the fireplace
opening. A mantel projection must be a
minimum of 24" above the top fireplace
opening if a mantel guard is not installed.
(Fig. 4 and 5)
To install the required mantel guard you will need a
Flathead screwdriver. The mantel guard has seven
holes along the top edge. There will already be screws
in three of the holes. Line up slots in Mantel Guard
with holes in the upper channel (top front edge) of the
firebox. The mantel guard will fit tightly in the top front
edge of the fireplace opening. Attach the mantel guard
with the four sheet metal screws provided.
The required firebox canopy
(mantel guard) supplied with this unit from Sure
Heat (the manufacturer) must not be modified or
replaced with a canopy (mantel guard) that/which
may be provide by the manufacture or supplier of
the decorative room heater.
1) Floor Clearances: No clearance is required if the
appliance is installed per these instructions.

Installation and Instructions
11
Installing the Firebox
This list of specific instructions will help you
make certain that every installation operation is done
correctly. Complete the installation steps in the
sequence shown.
LOCAL BUILDING CODES SHOULD BE
CONSULTED IN ALL CASES AS TO THE
PARTICULAR REQUIREMENTS CONCERNING THE
INSTALLATION OF FACTORY BUILT FIREPLACES.
Select the location for the fireplace by taking into
consideration the factors previously outlined in the
Locating the Fireplace section of this manual.
Step 1: Framing the Firebox
The width of the framed openings must be 37"
for 32" models, 41" for 36" models or 47" for 42"
models. (Fig. 2, page 7)
The entire fireplace can be elevated above the
floor to achieve a raised hearth effect. This can be
done by adding a small platform to achieve the
desired height.
Step 2: Install the Firebox
Install the firebox into the framed opening by
setting it directly in front of the opening and
sliding it into the proper position.
Step 3: Level the Firebox
Check the level of the firebox on the top edge of
the fireplace face. Shim if necessary.
Step 4: Secure the Firebox
Four (4) nailing flanges are supplied with the
fireplace to level the box and secure firmly in
place; Bend the nailing flanges from the sides of
the fireplace as shown in Figure 8.
Note: The nailing flanges have two (2) sets of
holes to allow for adjustment for 1/2" or 5/8" offset
of the face of the unit. When installing the nailing
flanges, choose the set of holes on the nailing
flange that fit with your application.
Note: This firebox employs spacers, stand offs
and nailing flanges to inhibit contact of parts of the
firebox with combustible construction .
do not alter the spacers or divert
from their intended use or notch the framing in
any manner.
Step 5: Gas Piping and Connection
The gas piping must be installed in accordance
with local codes or, in the absence of local codes,
in accordance with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, latest edition.
Piping should be tested for leaks prior to final wall
installation. Test for leaks, using a soap and water
solution or any acceptable solution or mechanical
gas leak detector, after completing the connection.
DO NOT USE OPEN FLAME.
Installation must conform with local
codes, or in the absence of local codes,
with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
E
DETAIL E
Fig. 8

Installation and Instructions
12
Step 6: Optional Procedure for
Cold Climate Installations
The insulation and sealing of the enclosure around
the fireplace is very important in cold climates. If
the enclosure is insulated and sealed properly, you
can avoid future cold air problems. The time taken
to install the firebox correctly is well worthwhile.
The following steps are to stop potential cold air
problems. (Do not use Kraft Faced insulation -
paper faced)
Insulation of the Fireplace Enclosure
When in a chase or an outside wall, the fireplace
enclosure should be insulated like any other wall of
your home. Insulation should be installed on the
outside wall(s) and the wall about the fireplace.
(Do not use Kraft Faced insulation - paper faced.)
Insulate to Seal Under the Fireplace
Insulating under the fireplace is beneficial for
installations on a concrete slab in cold weather
climates. The fireplace should be placed on insulating
board. It is important that a hard, rigid surface be
maintained, so do not use fiberglass insulation for
this purpose.
WHEN INSTALLING A FIREPLACE
IN AN INSULATED ENCLOSURE, BE SURE TO
MAINTAIN ALL MARKED AIR SPACES. DO NOT
USE KRAFT (PAPER FACED) INSULATION .
Seal Seams
Sealing the seams of the fireplace is beneficial for
installations in cold weather climates where the outer
wall meets the bottom pan and the front face. Also
seal between the fireplace and finishing materials.
Use high temperature caulk. Refer to Figure 9 for
details of sealing spaces between the fireplace and
finishing materials.
Finishing the Fireplace
There are a wide variety of finishing materials
available for your fireplace from formal wall treatments
with marble and mantles to rustic wood paneling, stone
or brick.
IT IS IMPORTANT THAT THE BLACK FACE OF
THE FIREPLACE NOT BE COVERED WITH ANY
TYPE OF COMBUSTIBLE MATERIAL.
Noncombustible facing materials such as marble,
brick or ceramic tile may overlap the black face of the
fireplace up to the opening on either side of the
fireplace. Seal all joints between the black fireplace
face and the wall covering with a heat-resistant
material such as rock wool insulation or mortar. Be
sure to use high temperature adhesive or mortar when
anchoring brick, stone or tile to the face of the
fireplace. Check to see whether man-made brick and
stone are made of noncombustible materials before
using them on the face of the fireplace. Some of these
products contain combustible materials. Combustible
wall coverings such as paneling or wallboard may not
overlap the black face of the fireplace. The space
between the wall covering and the fireplace should be
sealed with a heat-resistant material such as rock wool
insulation or mortar.
NOTE: An “L” shaped steel lintel must be installed
across the top of the firebox opening where facing
materials such as brick or stone are used on the face
of the firebox. It acts as a support/firestop. It should be
attached to the face of the fireplace with screws and
sealed to the fireplace with a heat-resistant sealer.
These vent free fireplaces are not to be
used with any TYPE or MODEL of glass doors.
Fireplace screens must be in the closed
position across the entire hearth opening prior to
the operation of the decorative room heater.
NOTE: Information on provisions for adequate
combustion and ventilation air are located in the
unvented room heaters installation instructions.
Stand
Off
Caulking or Sealant
Noncombustible
Insulation
Finishing Material
Top View
Side View
Caulking or Sealant
Noncombustible Material
Finishing Material
Insulation
Stud
Fig. 9

Installation and Instructions
13
Hearth Extension
An optional hearth extension may be used, but is
not required for these fireboxes.
A raised hearth extension may be used as shown
in Figure 10.
Install Optional Outside Air Kit
The VAK1 Outside Air Kit can be installed to bring
combustion air to the heated room air. The air drawn
into the heated room air from outside the home or
unheated area helps relieve the pressure in the home.
The duct termination should be located so it is
exposed to an out-of-doors opening of at least 100
square inches. If the duct termination must be located
in a crawl space or basement, be sure the termination
area has 100 square inches of ventilation opening to
outside air.
The duct termination must be located so it does
not compete for air flow with exhaust fans, gas vent
hoods or other air consuming devices or appliances. It
must not be obstructed by rafters, insulation materials
or other obstructions. The less restrictive the air
supply, the better the outside air kits will perform.
It is good practice to protect your hands and
eyes during installation by wearing work gloves and
safety glasses.
Do not install termination into a garage
or other area that could contain flammable liquids
or fumes, into a confined attic space or non
ventilated soffit .
Combustible Platform
Combustibles Allowed
(no carpet or vinyl)
Surround
1/2”
Seal with Non-Combustible Material
Hearth Brick
Hearth
Extension
Fig. 10

Installation and Instructions
14
Installation Instructions
Determine the location of the fireplace as
described in the fireplace installation manual. Then
plan the location of the duct termination and the route
of the duct run between the fireplace and the
duct termination.
Duct run must be limited to a maximum distance
of 40' (12.2m) from the fireplace pipe collar to duct
termination. This will provide the least restriction to air
flow. No more than four (4) 90º elbows can be used.
Duct run may be horizontal, vertical, inclined or any
combination of these. (Fig. 11) You are now ready to
install the Outside Air Kit.
1. Remove the screws retaining the outside air
coverplate, if provided. (Located on the left side of
front open units, on backside of multi-sided units.)
Discard coverplate. (Fig. 12)
2. Secure the inlet collar assembly to the outer casing
with four screws (screws not provided).
3. Slide the duct over the collar and attach the duct to
the collar using the plastic tie straps or three (3)
screws (screws not provided). Continue attaching
the ducting together using three (3) screws at each
joint until you have installed sufficient duct to arrive
at your duct termination locations.
4. At the termination end, install the duct termination.
This should be installed from the outside of the
home. Cut a hole in the desired location
approximately 4" in diameter, caulk around the
hole, and slide the termination through the opening
from outside the home. The termination/rain cap
should be caulked around its perimeter to assure
a tight seal. The rain cap opening should be
positioned downward.
The Outside Air Kit is now installed and ready
for use.
D
DETAIL D
Fig. 12
Ceiling
Duct
Duct
Termination
40ʼ Max
Duct Run
Soffit Termination
Exterior Wall Termination
Exterior Wall
40ʼ Max. Duct Run
Duct
Duct Termination
Rain Cap
Fig. 11
Soffit Termination
40' Max
Duct Run
Exterior Wall Termination
Exterior Wall
Rain Cap 40' Max. Duct Run
Duct
Duct Termination

Parts and Servicing
15
123 4
56
8 is not pictured
VFLB32 VFLB36 VFLB42
1 Firebrick Left 21321101 21361101 21421101
2 Firebrick Middle 23321201 23361201 23421201
3 Firebrick Right 21321301 21361301 21421301
4 Firebrick Bottom 21321401 21361401 21421401
5 Screen Mesh Wire 20321301 20361301 20421301
6 Mantel Guard 21321401 21361401 21421401
7 Screen Mesh 21322001 21362001 21422001
8 Outside Air Kit 20005001 20005001 20005001
Contact Sure Heat Manufacturing for questions
concerning prices and policies covering replacement
parts. Parts may be ordered through your Sure Heat
distributor or dealer.
You will need the correct name, part number
and model number of the appliance when ordering
replacement parts.
Should you need additional information beyond
what your dealer can furnish, contact:
Sure Heat Manufacturing
3130 Moon Station Road
Kennesaw, GA 30144
[phone]
Servicing
Repair and replacement work should only be done
by a qualified service person.
Always shut off the gas supply and make sure
the appliance is cool before beginning any
service operation.
Always check for gas leaks after servicing.
www.sureheat.com
7

16
RMH-130-0CD1009 11/09/2005
If you have other questions, please contact Customer Service Hotline
[phone]
LIMITED LIFETIME WARRANTY
Limited Warranty shall apply to the original purchaser at the original installation point only
The following components are warranted for life to the original owner, subject of proof of purchase: Firebox, Combustion
Chamber, Heat Exchanger.
General Warranty: This Limited Lifetime Warranty will be void if the appliance is not installed by a qualified installer in
accordance with the installation instructions. The Limited Lifetime Warranty will also be void if the appliance is not operat-
ed and maintained according to the operating instructions supplied with the appliance, and does not extend to (1) firebox
assembly damage by accident, neglect, misuse, abuse, alteration, negligence of others, including the installation thereof
by unqualified installers, (2) the costs of removal, reinstallation or transportation of defective parts on the appliance, or (3)
incidental or consequential damage. All service work must be performed by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of the merchantability of
fitness for the purpose and of all other obligations or liabilities. Sure Heat Mfg. Co. does not assume for it any other obli-
gations or liabilities in connection with the sale or use of the appliance. In states that do not allow limitation on how long
an implied warranty lasts, or do not allow exclusion of indirect damage, those limitations of exclusions may not apply to
you. You may also have the additional rights not covered in this Limited Lifetime Warranty.
Sure Heat Mfg. Co. reserves the right to investigate any and all claims against the Limited Lifetime Warranty and decide
upon method of settlement.
All costs for removal and reinstallation are the expressed responsibility of the purchaser.
For repair or replacement of a defective part or parts, contact our customer service department at 1-800-229-5647. You
will be asked to provide valid warranty registration, proof of purchase and model number.
Purchased From: ______________________________________________Date: __________________________
Size: oVFLB32 oVFLB36 oVFLB42
Name ______________________________________Date: ____________Phone ( ) __________________
Address ____________________________________________________________________________________
City ________________________________________State ____________Zip __________________________
E-mail ______________________________________________________________________________________