SHM BVFM24NG, BVFM18LP, BVFM18NG, SVFM24NG, SVFM24LP Owner's Operation And Installation Manual
...
VENT FREE GAS LOG SET
Owner’s Operation and Installation Manual
(S,B)VFM18NG
(S,B)VFM18LP
(S,B)VFM24NG
(S,B)VFM24LP
Also Design-Certified As Vented Decorative Appliances
WARNING: 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.
— Do not store or use gasoline or other
flammable vapors and liquids in the
a ro siht fo ytiniciv ny 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.
This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is
installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to page 4, Air for Combustion and
Ventilation.
(S,B)IVFMV18NG
(S,B)IVFMV18LP
(S,B)IVFMV24NG
(S,B)IVFMV24LP
INSTALLER: Leave this manual with the
appliance.
CONSUMER: Retain this manual for future
reference.
This appliance has been tested and approved
under ANSI
Z21.11.2–2011 Unvented Gas-
Fired Room Heaters.
WARNING: This appliance is for installation
only in a solid fuel burning masonry or UL127
factory-built fireplace or listed ventless firebox enclosure. It has been design certified for
these installations. EXCEPTION: DO NOT install this appliance in a factory-built fireplace
that includes instruction stating it has not
been tested or should not be used with unvented gas logs.
This appliance may be installed in an
aftermarket,* permanently located, manufactured (mobile) home, where not prohibited by local codes.
This appliance is only for use with the type of
gas indicated on the rating plate. This app-
liance is not convertible for use with other
gases.
* Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer
ANSI Z21.11.2 - 2011
Unvented Heaters
ANSI Z21.60 - 2004
Vented Decorative
TABLE OF CONTENTS
Safety Information ........................................................2
Local Codes ..................................................................3
Unpacking ..................................................................... 4
Product Features ............................................................ 4
Qualified Installation Agency .......................................4
Air For Combustion and Ventilation ............................4
Installation ..................................................................... 7
Operating Log Set ....................................................... 13
Inspecting Burners ......................................................
Cleaning and Maintenance ..........................................18
Troubleshooting ..........................................................19
Specifications ..............................................................22
Parts List and Illustrated Parts Breakdown .................
Warranty Information ..................................Back Cover
18
24
SAFETY INFORMATION
DANGER: Carbon monoxide poisoning
may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have these signs, heater may
not be working properly.
heater serviced. Some people–pregnant women, persons
with heart or lung disease, anemia, those under the influence of alcohol, those at high altitudes–are more affected
by carbon monoxide than others.
Propane/LP Gas: Propane/LP gas is odorless. An odor-
making agent is added to the gas. The odor helps you detect
a gas leak. However, the odor added to the gas can fade.
Gas may be present even though no odor exists.
Make certain you read and understand all warnings. Keep
this manual for reference. It is your guide to safe and proper
operation of this appliance.
Get fresh air at once! Have
WARNING: Any change to this heater
or its controls can be dangerous.
You must operate this heater with the fireplace screen in place. Make sure the fireplace
screen is in place before funning this app-
liance.
Unless other provisions are made for combustion air, the screens shall have an opening
or openings for introduction of combustion
air into the fireplace
If this appliance is installed in a fireplace that
has glass doors, the doors must be left open
when the appliance is in use.
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 qualified
installer, service agency, or the gas supplier.
WARNING: This product contains and/or
generates chemicals known to the state of
California to cause cancer or birth defects
or other reproductive harm.
WARNING: Do not use a blower insert,
heat exchanger insert, or other accessory
not approved for use with this appliance.
WARNING: Do not allow fans to blow
directly into the appliance. Avoid any drafts
that alter burner flame patterns. Ceiling
fans can create drafts that alter burner
flame patterns. Altered burner patterns can
cause sooting.
Due to high temperatures, the appliance
should be located out of traffic and away
from furniture and draperies.
Do not place clothing or other flammable
material on or near the appliance. Never
place any objects on the heater.
Fireplace front and screen become very
hot when running appliance. Keep children and adults away from hot surfaces to
avoid burns or clothing ignition. Logs 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 fireplace.
2
SAFETY INFORMATION
CONTINUED
Keep the appliance area clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.
fireplace if not enough fresh air is available. See Air
for Combustion and Ventilation, pages 4 through 6.
If appliance keeps shutting off, see Troubleshooting,
pages 17 through 20.
11. Do not run appliance
• where flammable liquids or vapors are used or
stored
• under dusty conditions
1. This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases.
2. Do not place propane/LP supply tank(s) inside any
structure. Locate propane/LP supply tank(s) outdoors
(propane/LP units only).
3. If you smell gas
• shut off gas supply
• 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
department
4. This appliance shall not be installed in a bedroom or
bathroom.
5. Do not use this appliance as a wood-burning fireplace.
Use only the logs provided with the appliance.
6. Do not add extra logs or ornaments such as pine cones,
vermiculite or rock wool. Using these added items can
cause sooting and poor combustion. Do not add lava
rock around base. Rock and debris could fall into the
control area of heater.
7. This appliance is designed to be smokeless. If logs ever
appear to smoke, turn off appliance and call a qualified
service person. Note: During initial operation, slight
smoking could occur due to log curing and fireplace
burning manufacturing residues.
8. To prevent the creation of soot, follow the instructions
in Cleaning and Maintenance section.
Keep the appliance area clear and free from
combustible materials, gasoline and other
flammable vapors and liquids.
9. Before using furniture polish, wax, carpet cleaner, or
similar products, turn heater off. If heated, the vapors
from these products
within burner box or on adjacent walls or furniture.
10. This appliance needs fresh air ventilation to run properly. This appliance has an Oxygen Depletion Sensing
(ODS) safety shutoff system. The ODS shuts down the
may create a white powder residue
12. Do not use this appliance to cook food or burn paper
or other objects.
13. Never place any objects in the heater or on logs.
14. Do not use appliance if any part has been exposed to
or under water. Immediately call a qualified service
technician to inspect the appliance and to replace any
part of the control system and any gas control which
has been under water.
15. Turn appliance off and let cool before servicing. Only
a qualified service person should service and repair
appliance.
16. Operating appliance above elevations of 4,500 feet
could cause pilot outage.
17. To prevent performance problems, do
LP fuel tanks of less than 100 lbs. capacity.
18. Provide adequate clearances around air openings.
LOCAL CODES
Install and use appliance 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*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
State of Massachusetts: The installation must
be made by a licensed plumber or gas fitter in the
Commonwealth of Massachusetts.
Sellers of unvented propane or natural gas-fired
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.
not use propane/
3
UNPACKING
AIR FOR COMBUSTION
1. Remove the carton and log wrap.
2. Remove all protective packaging applied to heater for
shipment.
3. Make sure your logset includes one hardware packet.
4. Check heater for any shipping damage. If h eater is
damaged, call SHM International at (800) 229-5647
for replacement parts before returning to dealer.
PRODUCT FEATURES
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing
(ODS) safety shutoff system. The ODS/pilot is a required
feature for vent-free room heaters. The ODS/pilot shuts off
the heater if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no
matches, batteries or other sources to light heater.
THERMOSTATIC HEAT CONTROL
Thermostat-controlled models have a thermostat sensing
bulb and a control valve. The thermostat will automatically
modulate the heat output to maintain a consistent room
temperature. This results in greater heater comfort. This
can also result in lower gas bills.
AND VENTILATION
WARNING: This heater 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 fuelburning appliances in your home.
Today’s homes are built more energy efficient 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 efficient, 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, fireplaces, clothes dryers, and fuel burning appliances d
adequate fresh air for these appliances. This will insure proper
venting of vented fuel-burning appliances.
raw air from the house to operate. You must provide
QUALIFIED
INSTALLATION AGENCY
Installation and replacement of gas piping, gas utilization equipment or accessories and repair and servicing of
equipment shall be performed only by a qualified agency.
The term “qualified agency” means any individual, firm,
corporation, or company that either in person or through a
representative is engaged in and is responsible for:
A. Installation, testing or replacements of gas piping or
B. Connection, installation, testing, repair or servicing
of equipment that is experienced in such work; that
is familiar with all precautions required; and that has
complied with all requirement of the authority having
jurisdiction.
4
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel Gas Code
ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion
and Ventilation.
All spaces in homes fall into one of the following
ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
The information on pages 4 through 6 will help you classify
your space and provide adequate ventilation.
Unusually Tight Construction
Ventilation Air From Outdoors
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 defined 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
per pa-sec-m
2
) or less with openings gasketed
-11
kg
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 floors, between wall-
ceiling joints, between wall panels, at penetra
tions for plumbing, electrical, and gas lines,
and at other openings.
If your home meets
you must provide additional fresh air. See
tion Air From Outdoors
all of the three criteria above,
Ventila-
, page 5
.
If your home does not meet all of the three criteria
above, proceed to
Appliance Location
Determining Fresh-Air Flow for
, page 6.
VENTILATION AIR
Provide extra fresh air by using ventilation grills or ducts.
You must provide two permanent openings: one within
12" of the ceiling and one within 12" of the floor. Connect
these items directly to the outdoors or spaces open to the
sehT .sroodtuo
.secaps lwarc dna scitta edulcni secaps e
Follow the National Fuel Gas Code ANSI Z223.1/NFPA
54, Section 5.3, 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.
Ventilated
Attic
Ventilated
Crawl Space
To Attic
To
Crawl
Space
Outlet
Air
Inlet
Air
Outlet
Air
Inlet Air
Figure 2 - Ventilation Air from Outdoors
DETERMINING FRESH-AIR FLOW
FOR APPLIANCE LOCATION
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined
space. When ventilating to an adjoining unconfined space,
you must provide two permanent openings: one within 12"
of the ceiling and one within 12" of the floor on the wall
connecting the two spaces (see Figure 1). You can also
remove door into adjoining room (see Figure 1). Follow
the National Fuel Gas Code ANSI Z223.1/NFPA 54, Sec-
tion 5.3, Air for Combustion and Ventilation for required
size of ventilation grills or ducts.
12"
Ventilation
Grills
Into Adjoining
Room,
Option 1
Or
Remove
Door into
Adjoining
Room,
Option
3
Figure 1 - Ventilation Air from Inside Building
Ventilation Grills
Into Adjoining Room,
12"
Option 2
Determining if You Have a Confined
or Unconfined Space
Use this work sheet to determine if you have a confined
or unconfined 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 = (Maximum Btu/Hr
the space can support)
Example: 3168 cu. ft. (volume of space) x 20 = 63,360
(maximum Btu/Hr the space can support)
5
AIR FOR COMBUSTION
AND VENTILATION
CONTINUED
3. Add the Btu/Hr of all fuel burning appliances in the
space.
Vent-free log set _______________ Btu/Hr
Gas water heater* ______________ Btu/Hr
Gas furnace ___________________ Btu/Hr
Vented gas heater ______________ Btu/Hr
Gas fireplace 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:
Vent-free log set ______________ Btu/Hr
Gas water heater* _____________ Btu/Hr
Total = ________ Btu/Hr
Compare the maximum Btu/Hr the space can support with
4.
the actual amount of Btu/Hr used.
____ Btu/Hr (max. the space can support)
____ Btu/Hr (actual amt. of Btu/Hr used)
Example: 63,300 Btu/Hr (maximum the space can sup-
port)
73,000 Btu/Hr (actual amount of Btu/Hr used)
The space in the above example is a confined 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:
Rework work sheet, adding the space of an adjoining room.
A.
If the extra space provides an unconfined space, remove
door to adjoining room or add ventilation grills between
rooms. See Ventilation Air from Inside Building, page 5.
B. Vent room directly to the outdoors. See Ventilation Air
from Outdoors, page 5.
39,000
40,000
79,000
WARNING: If the area in which the
heater 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.
When used as a vented heater, appliance must be
Note:
installed only in a solid-fuel burning fireplace with a
working flue and constructed of noncombustible mat-
erial.
VENTED OPERATION
You may also use this heater as a vented product. There are.
three reasons for operating your heater in the vented mode.
1. The fireplace does not meet the clearance to combustibles requirements for vent-free operation.
2. State or local codes do not permit vent-free operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you must permanently open chimney flue damper. You must install the
damper clamp. This will insure vented operation (see Fig-
u r e 10). The damper clamp will keep damper open.
See chart below for minimum permanent flue opening
you must provide. Attach damper clamp so the minimum permanentflue opening will be maintained at all times.
Area of Various Standard
Round Flues
Diameter (ins.) Area (sq. ins.)
5" 20 sq. inches
6" 29 sq. inches
7" 39 sq. inches
8" 51 sq. inches
Chimney Minimum Permanent
Height (ft.) Flue Opening (sq. ins.)
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
C. Install a lower Btu/Hr appliance, if lower Btu/Hr
makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr
the space can support, the space is an unconfined space.
You will need no additional fresh air ventilation.
6
size
Damper
Clamp
Damper
Follow instructions Installing Damper Clamp on
page 8 for location of damper in the fireplace.
INSTALLATION
WARNING: Before installing in a solidfuel-burning fireplace, the chimney flue
and firebox must be cleaned of soot, creo-
sote, ashes, and loose paint by a qualified
chimney cleaner.
NOTICE: This appliance is intended for
supplemental heating. Use this heater
along with your primary heating system.
Do not install this heater as your primary
heat source. If you have a central heating
system, you may run system’s circulating
blower while using heater. This will help
circulate the heat throughout the house. In
the event of a power outage, you can use
this heater as your primary heat source.
WARNING: A qualified service person must
install appliance. Follow all local codes.
CHECK GAS TYPE
Use the correct gas type (natural or propane/LP) for your
appliance. If your gas supply is not correct or if you do not
know your gas type, do not install appliance.
INSTALLATION ITEMS NEEDED
Before installing appliance, make sure you have the items
listed below.
• external regulator for propane/LP unit only (supplied by
installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• ground joint union
• sediment trap (optional)
• tee joint
• pipe wrench
approved flexible gas line (not provided), or provided
•
gas connector (if allowed by local codes)
WARNING: Never install the appliance
• in a recreational vehicle
• where curtains, furniture, clothing, or
other flammable objects are less than
36 inches (91.5 cm) from the front, top,
or sides of the appliance
• in a wood-burning stove
• in high
areas
• in windy or drafty areas
WARNING: Never install in a bedroom
or bathroom. Any heating product with a
Btu/Hr rating over 10,000 cannot be used
in a bedroom. Any heating product with a
Btu/Hr rating over 6,000 cannot be used
in a bathroom.
CAUTION: This appliance creates warm
air currents. These currents move heat to
wall surfaces next to appliance. Installing
appliance next to vinyl or cloth wall coverings or operating appliance where impurities
(such as tobacco smoke, aromatic candles,
cleaning fluids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls.
IMPORTANT: Vent-free heaters add moisture to the air.
Although this is beneficial, installing appliance in rooms
without enough ventilation air may cause mildew to form
from too much moisture. See Air for Combustion and
Ventilation, page 4.
* A CSA/AGA design-certified equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to test gauge
connection. Purchase the optional CSA/AGA design-certified
equipment s
For propane/LP units, the installer must supply an external
regulator. The external regulator will reduce incoming gas
pressure. You must reduce incoming gas pressure to between
11 and 14 inches of water. If you do not reduce incoming
gas pressure, heater regulator damage could occur.
hutoff valve fr
om your dealer.
LOG SET PLACEMENT
Place the log set in the center of your fireplace or firebox.
CLEARANCES (Vent-Free Operation Only)
WARNING: Maintain the minimum clearances. If
you can, provide greater clearances from floor, ceiling, and adjoining wall.
Minimum Fireplace Clearance To Combustible Materials
Log Size Side Wall Ceiling
18", 21", 24" 15.5" 42"
LOG SIZING REQUIREMENTS
Minimum Firebox Size
Log Front Rear*
Size Height Depth Width Width
18" 18" 12" 22" 18"
21", 24
*Measured at 14" Depth
" 18" 15" 28" 22"
7
INSTALLATION
CONTINUED
INSTALLATION CLEARANCES
WARNING: Maintain the minimum clear-
ances.
CONNECTING TO GAS SUPPLY
WARNING: This appliance requires a
5/8” UNF (Unified National Fine Thread)
and 1/2" NPT (National Pipe Thread) inlet
connection and the gas connection tube
provided.
Mantel Clearances for Installation
If placing mantel above heater, you must meet the minimum clearance between the mantel shelf and the top of
the firebox opening.
NOTICE: Surface temperatures of adjacent
walls and mantels become hot during
operation. Walls and mantels above the
firebox may become hot to the touch. If
installed properly, these temperatures meet
the requirement of the national product
standard. Follow all minimum clearances
shown in this manual.
WARNING: A qualified service person
must connect log set to gas supply. Follow
all local codes.
WARNING: Never connect natural gas
log set to private (non-utility) gas wells.
This gas is commonly known as wellhead
gas.
IMPORTANT: For natural gas, check gas line pressure
before connecting heater to gas line. Gas line pressure must
be no greater than 10.5” of water. If gas line pressure is
higher, heater regulator damage could occur.
CAUTION: Never connect propane/LP
log set directly to the propane/LP supply.
This appliance requires an external regula-
tor (not supplied). Install the external regu-
lator between the appliance and propane/
LP supply.
For propane/LP gas, the installer must supply an external
regulator. The external regulator will reduce incoming gas
pressure. You must reduce incoming gas pressure to between
11” and 14” of water. If you do not reduce incoming gas
pressure, heater regulator damage could occur. Install the
external regulator with the vent pointing down as shown in
Figure 4. Pointing the vent down protects it from freezing
rain or sleet.
Figure 3 - Minimum Mante l Cl e a r a nces for
Installation
Damper
Masonry Fireplace
INSTALLING DAMPER CLAMP ACCESSORY FOR
VENTED OPERATION
8
Damper Clamp
Manufactured Fireplace
Damper
External
Regulator
Vent
Pointing
Down
Figure 4 - External Regulator with Vent Pointing
Down
Propane/LP
Supply Tank
CAUTION: Use only new, black iron or
steel pipe. Internally-tinned copper tubing
may be used in certain areas. Check your
local codes. Use pipe of 1/2" diameter or
greater to allow proper gas volume to appliance. If pipe is too small, undue loss of
pressure will occur.
Shutoff Valve
Installation must include an equipment shutoff valve,
union, and plugged 1/8” NPT tap. Locate NPT tap within
reach for test gauge hook up. NPT tap must be upstream
from appliance.
IMPORTANT: Install equipment shutoff valve in
an accessible location. The equipment shutoff
valve is for turning on or shutting off the gas to
the appliance.
Check your building codes for any special re-
quirements for locating equipment shutoff valve
to fireplaces.
Apply pipe joint sealant lightly to male NPT threads. This
will prevent excess sealant from going into pipe. Excess
sealant in pipe could result in clogged fireplace valves.
Never use sealant on flare threads.
CAUTION: Use pipe joint sealant that is
resistant to liquid petroleum (LP) gas.
We recommend that you install a sediment trap in supply
line as shown in Figure 5. Locate sediment trap where it is
within reach for cleaning. Install in piping system between
fuel supply and appliance. Locate sediment trap where
trapped matter is not likely to freeze. A sediment trap traps
moisture and contaminants. This keeps them from going
into appliance gas controls. If sediment trap is not installed
or is installed wrong, appliance may not run properly.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections, internal and external to unit, for
leaks after installing or servicing. Correct
all leaks at once.
WARNING: Never use an open flame
to check for a leak. Apply a mixture of liq-
uid soap and water to all joints. Bubbles
forming show a leak. Correct all leaks at
once.
CSA/AGA Design-
Certified Equipment
Shutoff Valve With
1/8" NPT Tap*
Approved
Gas Line
Propane/LP
From External
Regulator (11”
3" Minimum
Pipe
Nipple
Sediment
Trap
Figure 5 - Gas Connection
* Purchase the optional CSA/AGA design-certified equipment
shutoff valve from your dealer.
** Minimum inlet pressure for purpose of input adjustment.
Cap
Tee
Joint
W.C.** to 14”
W.C. Pressure)
Natural Gas
From Gas
Meter (7” W.C.**
to 10.5” W.C.
Pressure)
Pressure Testing Gas Supply Piping
System
Test Pressures In Excess Of 1/2 PSI
(3.5 kPa)
1. Disconnect appliance with its main gas valve (control
valve) and equipment shutoff valve from gas supply
piping system. Pressures in excess of 1/2 psi will damage
appliance gas regulator.
2. Cap off open end of gas pipe where equipment shutoff
valve was connected.
3. Pressurize supply piping system by either opening
propane/LP supply tank valve for propane/LP gas or
opening main gas valve located on or near gas meter of
natural gas or using compressed air.
4. Check all joints of gas supply piping system. Apply
noncorrosive leak detection fluid to all joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Reconnect appliance and equipment shutoff valve to
gas supply. Check reconnected fittings for leaks.
9
ON
INSTALLATION
CONTINUED
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 6).
2. Pressurize supply piping system by either opening
propane/LP supply tank valve for propane/LP gas or
opening main gas valve located on or near gas meter of
natural gas or using compressed air.
3. Check all joints from gas meter to equipment shutoff
valve for natural gas or propane/LP supply t
shutoff valve for propane/LP.
Apply noncorrosive leak
detection fluid to all joints. Bubbles forming show a
leak.
4. Correct all leaks at once.
o equipment
OPTIONAL REMOTE CONTROL SET
INSTALLATION AND SET-UP
Remote control purchased seperatly.
- + - +
Install four (4) "AA"
batteries into the
remote receiver box
as shown on the left.
Open
POSITION
Equipment
Shutoff
Valve
OFF
POSITION
Closed
Figure 6 - Equipment Shutoff Valve
PRESSURE TESTING APPLIANCE
GAS CONNECTIONS
1. Open equipment shutoff valve (see Figure 14).
2. For natural gas, open main gas valve located on or near
gas meter. For propane/LP gas, open propane/LP supply
tank valve.
3. Make sure control knob of fireplace is in the OFF position.
4. Check all joints from equipment shutoff valve to gas
control valve. Apply noncorrosive leak detection fluid
to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Log Set, page 13). Check
all other internal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas To Log Set, page
14).
Install three (3) "AAA"
batteries into the
remote control
as shown on the left.
ON/OFF
Key
Transmission
light
Side
Slider
COMMUNICATION BETWEEN THE
REMOTE CONTROL TRANSMITTER
AND THE RECEIVER
To program the transmitter to the receiver, move
the three positions slider of the receiver in the
REMOTE position and depress the ON/OFF key
of the transmitter. The System has an automatic
learning mode that allows the receiver to mate
with a new trans -mitter in the event the trans
mitter must be replaced. As soon as the receiver
module receives the first correct command from
any remote control it captures the new address
and then "beeps" 3 times to confirm the syncron-
ization and command execution.
10
Log Placement, CVO(18,24,30) MV(18,24)VFM And OVM22
13
14
15
16
17
18
IMPORTANT !
Check and make sure the logs are clear of
The burner flame. Flames touching the logs
can produce soo
ng!
19
20
19
21
22
20
(Main gas tube may be carefully
bent into needed shape)
Tube, Main Gas Supply
20
WIP-120-90414 WIP-120-90414WIP-120-90414
23
13
(Gas supply tube may be carefully
bent into needed shape)
24
SERVICE INFORMATION
REPLACEMENT PARTS
Note: Use only original replacement parts. This will
protect your warranty coverage for parts replaced under
warranty.
Parts Under Warranty
Contact authorized dealers of this product. If they can’t supply original replacement part(s), call SHM International’s
Technical Service Department at (800) 229-5647.
When calling SHM International, have ready:
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the part to the factory.
Parts Not Under Warranty
Contact authorized dealers of this product. If they can’t
supply original replacement part(s), call SHM International
at (800) 229-5647 for referral information. When calling
SHM International, have ready:
• model number of your heater
• the replacement part number (see Page 23-24)
SERVICE HINTS
When gas pressure is too low:
• pilot will not stay lit
• heater will not
produce the specified heat
• propane/LP gs supply may be low
You may feel your gas pressure is too low. If so, contact
your local natural or propane/LP gas supplier.
Use only original replacement parts. This will
Note:
protect your warranty coverage for parts replaced under
warranty.
TECHNICAL SERVICE
You may have further questions about installation, operation or troubleshooting. If so, contact SHM International’s
Technical Service Department at (800) 229-5647.
When calling please have your model and serial
numbers of your heater ready. You can also visit
SHM International’s Technical Service web site at
www.sureheat.com.
Model VFM18NG
Gas Type
Input Max.
Input Min.
Manifold Pressure
Inlet Pressure Max.
Inlet Pressure Min.*
Min. Firebox Size
Model
Gas Type
Input Max.
Input Min.
Manifold Pressure
Inlet Pressure Max.
Inlet Pressure Min.*
Min. Firebox Size
(S,B)
(S,B)
Natural Gas
34,000 BTU/Hr
22,000 BTU/Hr 22,000 BTU/Hr
3.5” W.C. 3.5” W.C.8.0” W.C. 8.0” W.C.
10.5” W.C.
7.0” W.C.
18” H X 22” W X 12” D
IVFMV18NG
Natural Gas
34,000 BTU/Hr
22,000 BTU/Hr 22,000 BTU/Hr
3.5” W.C. 3.5” W.C.8.0” W.C. 8.0” W.C.
10.5” W.C.
7.0” W.C.
18” H X 22” W X 12” D
*For purpose of input adjustment
SPECIFICATIONS
VFM18LP VFM21,24NG VFM21,24LP
Propane/LP
Propane/LP
34,000 BTU/Hr
Natural Gas
39,000 BTU/Hr
22,000 BTU/Hr 22,000 BTU/Hr
14.0” W.C. 14.0” W.C.
11.0” W.C. 11.0” W.C.
10.5” W.C.
7.0” W.C.
18” H X 28” W X 15” D
IVFMV18LP IVFMV21,24NG IVFMV21,24LP
Propane/LP
34,000 BTU/Hr
Natural Gas
39,000 BTU/Hr 39,000 BTU/Hr
22,000 BTU/Hr 22,000 BTU/Hr
14.0” W.C. 14.0” W.C.
11.0” W.C. 11.0” W.C.
10.5” W.C.
7.0” W.C.
18” H X 28” W X 15” D
39,000 BTU/Hr
Propane/LP
VFM27,30NG VFM27,30LP
Natural Gas
39,000 BTU/Hr 39,000 BTU/Hr
Propane/LP
22,000 BTU/Hr 22,000 BTU/Hr
8.0” W.C.
14.0” W.C.
11.0” W.C.
3.5” W.C.
10.5” W.C.
7.0” W.C.
18” H X 34” W X 15” D
IVFMV27,30NG IVFMV27,30LP
Natural Gas
39,000 BTU/Hr 39,000 BTU/Hr
22,000 BTU/Hr
3.5” W.C.
10.5” W.C.
7.0” W.C.
18” H X 34” W X 15” D
Propane/LP
22,000 BTU/Hr
8.0” W.C.
14.0” W.C.
11.0” W.C.
25
WARRANTY INFORMATION
KEEP THIS WARRANTY
Model ______________________________
Serial No. ___________________________
Date Purchased _____________________
Always specify model and serial numbers when communicating with the
factory.
LIMITED WARRANTY
SHM International Corp. warrants the components of this appliance to be free from defects in material and
workmanship for one (1) year from the date of purchase. SHM International Corp. at its option, will repair or
replace this product or any component of the product found to be defective during the warranty period. Replacement will be made with a new manufactured product or component. If the product is no longer available,
replacement may be made with a similar product of equal value. This warranty does not include transportation
or shipping costs of any kind. This your exclusive warranty.
This warranty is valid for the original retail purchaser from the date of initial retail purchase and is not transferable. Keep the original sales receipt. Proof of purchase is required to obtain warranty parts.
This warranty does not cover normal wear of parts such as scratches and dents of the components or damage
resulting from any of the following:
• negligent use or misuse of the product, including exposing the product to chemicals or cleaning products not
approved by SHM International Corp.
• corrosion, rust or discoloring of any kind
• use or installation contrary to
product to temperatures above its rated specifications which can cause considerable warping
• disassembly, including removal of the product from a built-in installation
• damage resulting from accident, alteration, misuse, abuse, hostile environments, or improper installation
• repair or alteration
• acts of God, such as
• gas cylinders, propane tanks or other fuel delivery systems, including connections to a household fuel supply
• usage other than single-family household use such as commercial or industrial use
• minor warping or discoloration of parts, which is normal and not a defect under this warranty
hurricanes, and tornadoes
instructions and applicable building codes, including heating the
DO NOT RETURN THIS PRODUCT TO THE PLACE OF PURCHASE
If the appliance does not operate properly, first thoroughly carry out the instructions provided with the unit to
ensure that the appliance is installed correctly and check the troubleshooting section in the use and care manual.
We recommend you return the warranty registration card so that you can be contacted when any questions of
safety arise that could affect you. The return of the warranty registration car is not a condition for warranty
coverage.
Because of continuing product improvement, these specifications are subject to change without notice.
If you have other questions or need replacement parts, contact our
SHM International Corp., 1861 West Oak Parkway, Marietta, GA 30062
Customer Service Hotline at (800) 229-5647 or
visit our website at www.sureheat.com.
OML2011A
Rev. 1.2
02/2013
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