White Mountain Hearth VFBL-30-1 Quick start guide

Page 116940-2-0806
INSTALLATION INSTRUCTIONS
AND
OWNER'S MANUAL
UNVENTED
ROOM HEATER
MODELS
VFBL-30-1
VFBH-30-1
EFFECTIVE DATE
AUGUST 2006
WARNING: If not installed, operated and main-
tained in accordance with the manufacturer's
instructions, this product could expose you to
substances in fuel or from fuel combustion which
can cause death or serious illness.
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 6.
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 appliance
is not convertible for use with other gases.
The Taos Vent-Free Gas Fireplace
WATER VAPOR: A BY-PRODUCT OF
UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combustion. An
unvented room heater produces approximately one
(1) ounce (30ml) of water for every 1,000 BTU's
(.3KW's) of gas input per hour. Refer to page 6.
— Do not store or use gasoline or other flamma-
ble 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 suppli-
er’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: If the information in these instruc-
tions are not followed exactly, a fire or explosion
may result causing property damage, personal
injury or loss of life.
Installer: Leave this manual with the appli-
ance.
Consumer: Retain this manual for future refer-
ence.

Page 2 16940-2-0806
SECTION PAGE
Important Safety Information ......................................................................................................................3
Safety Information for Users of LP Gas ......................................................................................................4
Introduction ..................................................................................................................................................5
Specifications ...............................................................................................................................................5
Water Vapor: A By-Product of Unvented Room Heaters .............................................................................6
Provisions for Adequate Combustion and Ventilation Air ...........................................................................6
Gas Supply ...................................................................................................................................................7
Clearances ...................................................................................................................................................8
Combustible Material ...................................................................................................................................8
Wall Mount Installation ...............................................................................................................................9
Optional Floor Stand Installation ...............................................................................................................10
Log Placement ...........................................................................................................................................10
Lighting Instructions .................................................................................................................................11
Main Burner Flame Characteristics ..........................................................................................................12
Pilot Flame Characteristics .......................................................................................................................12
Thermostat Operation ................................................................................................................................13
Appliance Maintenance .............................................................................................................................13
Troubleshooting .........................................................................................................................................13
Parts List ....................................................................................................................................................14
How to Order Repair Parts .........................................................................................................................14
Parts View .................................................................................................................................................15
Optional Blower Installation Instructions ........................................................................................... 16-17
Optional Mantel Installation Instructions ..................................................................................................18
Service Notes .............................................................................................................................................19
TABLE OF CONTENTS

Page 316940-2-0806
When used without adequate combustion and ventilation air,
heater may give off CARBON MONOXIDE, an odorless,
poisonous gas.
Do not install heater until all necessary provisions are
made for combustion and ventilation air. Consult the writ-
ten instructions provided with the heater for information
concerning combustion and ventilation air. In the absence
of instructions, refer to the National Fuel Gas Code, ANSI
Z223.1, Section 5.3 or applicable local codes.
This heater is equipped with a PILOT LIGHT SAFETY SYS-
TEM designed to turn off the heater if not enough fresh air is
available.
DO NOT TAMPER WITH PILOT LIGHT SAFETY
SYSTEM!
If heater shuts off, do not relight until you provide fresh air.
If heater keeps shutting off, have it serviced. Keep burner and
control compartment clean.
CARBON MONOXIDE POISONING MAY LEAD TO
DEATH.
Early signs of carbon monoxide poisoning resemble the flu,
with headache, dizziness and/or nausea. If you have these signs,
heater may not be working properly. Get fresh air at once! Have
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.
The pilot light safety system senses the depletion of oxygen at
its location. If this heater is installed in a structure having a high
vertical dimension, the possibility exists that the oxygen supply
at the higher levels will be less than that at the heater. In this type
of application, a fan to circulate the structure air will minimize
this effect. The use of this fan will also improve the comfort level
in the structure. When a fan is used to circulate air, it should be
located so that the air flow is not directed at the burner.
before use and at least annually by a professional service person.
More frequent cleaning may be required due to excessive lint
from carpeting, bedding materials, etc. It is imperative that
control compartments, burners and circulating air passageways
of the appliance be kept clean.
• Due to high surface temperatures, keep children, clothing and
furniture away.
• Keep appliance area clear and free from combustible materials,
gasoline and other flammable vapors and liquids.
• WARNING: ANY CHANGE TO THIS HEATER OR ITS
CONTROLS CAN BE DANGEROUS.
Any safety screen or guard removed for servicing an appliance
must be replaced prior to operating the heater.
• WARNING: Failure to keep the primary air opening(s) of the
burner(s) clean may result in sooting and property damage.
• WARNING: Do not use a blower insert, heat exchanger insert
or other accessory not approved for use with heater.
• An unvented room heater having an input rating of more than
6,000 Btu per hour shall not be installed in a bathroom.
• An unvented room heater having an input rating of more than
10,000 Btu per hour shall not be installed in a bedroom or
bathroom.
• Due to high temperatures, the appliance should be located
out of traffic and away from furniture and draperies.
• Children and adults should be alerted to the hazard of high
surface temperature and should stay away to avoid burns or
clothing ignition.
• Young children should be carefully supervised when they
are in the same room with the appliance.
• Do not place clothing or other flammable material on or near
the appliance.
• 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.
• Installation and repair should be done by a QUALIFIED
SERVICE PERSON. The appliance should be inspected
THIS IS A HEATING APPLIANCE
DO NOT OPERATE THIS APPLIANCE WITHOUT FRONT PANEL INSTALLED.
IMPORTANT SAFETY INFORMATION
WARNING

Page 4 16940-2-0806
Some people cannot smell well. Some people cannot smell the
odor of the chemical put into the gas. You must find out if you
can smell the odorant in propane. Smoking can decrease your
ability to smell. Being around an odor for a time can affect your
sensitivity or ability to detect that odor. Sometimes other odors
in the area mask the gas odor. People may not smell the gas odor
or their minds are on something else. Thinking about smelling
a gas odor can make it easier to smell.
The odorant in LP-gas is colorless, and it can fade under some
circumstances. For example, if there is an underground leak, the
movement of the gas through soil can filter the odorant. Odorants
in LP-Gas also are subject to oxidation. This fading can occur if
members of your household. Someday when there may not be
a minute to lose, everyone's safety will depend on knowing
exactly what to do. If, after reading the following information,
you feel you still need more information, please contact your
gas supplier.
Propane (LP-Gas) is a flammable gas which can cause fires and
explosions. In its natural state, propane is odorless and colorless.
You may not know all the following safety precautions which
can protect both you and your family from an accident. Read
them carefully now, then review them point by point with the
there is rust inside the storage tank or in iron gas pipes.
The odorant in escaped gas can adsorb or absorb onto or into
walls, masonry and other materials and fabrics in a room. That
will take some of the odorant out of the gas, reducing its odor
intensity.
LP-Gas may stratify in a closed area, and the odor intensity
could vary at different levels. Since it is heavier than air, there
may be more odor at lower levels. Always be sensitive to the
slightest gas odor. If you detect any odor, treat it as a serious
leak. Immediately go into action as instructed earlier.
• Learn to recognize the odor of LP-gas. Your local LP-Gas
Dealer can give you a "Scratch and Sniff" pamphlet. Use it
to find out what the propane odor smells like. If you suspect
that your LP-Gas has a weak or abnormal odor, call your
LP-Gas Dealer.
• If you are not qualified, do not light pilot lights, perform
service, or make adjustments to appliances on the LP-Gas
system. If you are qualified, consciously think about the
odor of LP-Gas prior to and while lighting pilot lights or
performing service or making adjustments.
• Sometimes a basement or a closed-up house has a musty
smell that can cover up the LP-Gas odor. Do not try to light
pilot lights, perform service, or make adjustments in an area
where the conditions are such that you may not detect the
odor if there has been a leak of LP-Gas.
• Odor fade, due to oxidation by rust or adsorption on walls
of new cylinders and tanks, is possible. Therefore, people
should be particularly alert and careful when new tanks or
cylinders are placed in service. Odor fade can occur in new
tanks, or reinstalled old tanks, if they are filled and allowed
to set too long before refilling. Cylinders and tanks which
have been out of service for a time may develop internal rust
which will cause odor fade. If such conditions are suspected
to exist, a periodic sniff test of the gas is advisable. If you
have any question about the gas odor, call your
LP-gas dealer.
A periodic sniff test of the LP-gas is a good safety measure
under any condition.
• If, at any time, you do not smell the LP-Gas odorant and you
think you should, assume you have a leak. Then take the same
immediate action recommended above for the occasion when
you do detect the odorized LP-Gas.
• If you experience a complete "gas out," (the container is un-
der no vapor pressure), turn the tank valve off immediately.
If the container valve is left on, the container may draw in
some air through openings such as pilot light orifices. If this
occurs, some new internal rusting could occur. If the valve is
left open, then treat the container as a new tank. Always be
sure your container is under vapor pressure by turning it off
at the container before it goes completely empty or having
it refilled before it is completely empty.
• Do not operate electric switches, light matches, use your
phone. Do not do anything that could ignite the gas.
• Get everyone out of the building, vehicle, trailer, or area.
Do that IMMEDIATELY.
• Close all gas tank or cylinder supply valves.
• LP-Gas is heavier than air and may settle in low areas such
as basements. When you have reason to suspect a gas leak,
keep out of basements and other low areas. Stay out until
firefighters declare them to be safe.
• Use your neighbor's phone and call a trained LP-Gas service
person and the fire department. Even though you may not
continue to smell gas, do not turn on the gas again. Do not
re-enter the building, vehicle, trailer, or area.
• Finally, let the service man and firefighters check for escaped
gas. Have them air out the area before you return. Properly
trained LP-Gas service people should repair the leak, then
check and relight the gas appliance for you.
SOME POINTS TO REMEMBER
NO ODOR DETECTED - ODOR FADE
LP-GAS WARNING ODOR
If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP-Gas.
That's your signal to go into immediate action!
SAFETY INFORMATION FOR USERS OF LP-GAS

Page 516940-2-0806
Instructions to Installer
1. Installer must leave instruction manual with owner after
installation.
2. Installer must have owner fill out and mail warranty card
supplied with unvented room heater.
3. Installer should show owner how to start and operate unvented
room heater.
Always consult your local Building Department regarding regula-
tions, codes or ordinances which apply to the installation of an
unvented room heater.
This appliance may be installed in an aftermarket* permanently
located, manufactured (mobile) home, where not prohibited by
state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer.
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.
General Information
The AVFBL-30 and AVFBH-30 are design certified in accordance
with American National Standard Z21.11.2 by the Canadian
Standards Association as an Unvented Room Heater and shall
be installed according to these instructions.
Attention: During initial use of ceramic log you will detect an
odor as the ceramic log is cured. Also, during the curing process
the ceramic log will burn with a yellow flame.
Any alteration of the original design, installed other than as shown
in these instructions or use with a type of gas not shown on the
rating plate is the responsibility of the person and company mak-
ing the change.
WARNING: This appliance is equipped for (natural gas or propane)
gas. Field conversion is not permitted.
Important
All correspondence should refer to complete Model Number,
Serial Number and type of gas.
Notice: During initial firing of this unit, its paint will bake out,
and smoke will occur. To prevent triggering of smoke alarms,
ventilate the room in which the unit is installed.
Qualified Installing Agency
Installation and replacement of gas piping, gas utilization equip-
ment 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
which either in person or through a representative is engaged in
and is responsible for (a) the installation or replacement of gas
piping or (b) the connection, installation, repair or servicing of
equipment, who is experienced in such work, familiar with all
precautions required and has complied with all the requirements
of the authority having jurisdiction.
State of Massachuetts: The installation must be made by a licensed
plumber or gas filter 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.
The installation must conform with local codes or, in the absence
of local codes, with the National Fuel Gas Code, ANSI Z223.1/
NFPA54.*
*Available from the American National Standards Institute, Inc., 11 West 42nd
St., New York, N.Y. 10036.
Well Head Gas Installations
Some natural gas utilities use "well head" gas. This may affect
the Btu output of the unit. Contact the gas company for the heat-
ing value. Contact the manufacturer or your gas company before
changing spud/orifice size.
High Altitudes
For altitudes/elevations above 2,000 feet (610m), ratings should be
reduced at the rate of 4 percent for each 1,000 feet (305m) above
sea level. Contact the manufacturer or your gas company before
changing spud/orifice size.
Accessories
Automatic Blower VFB-BK
Polished Brass Frame VFF1A-20BR
Floor Stand VFBFS
Model AVFBL-30/AVFBH-30
Input BTU/HR (KW/H) Max. 30,000 ( 8.8)
BTU/HR (KW/H) Min. 14,000 (4.1)
Height 22"
Width 26"
Depth 7 5/8"
Gas Inlet 3/8" (10mm)
INTRODUCTION
SPECIFICATIONS

Page 6 16940-2-0806
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combustion. An unvented room
heater produces approximately one (1) ounce (30ml) of water for
every 1,000 BTU's (.3KW's) of gas input per hour.
Unvented room heaters are recommended as supplemental heat (a
room) rather than a primary heat source (an entire house). In most
supplemental heat applications, the water vapor does not create a
problem. In most applications, the water vapor enhances the low
humidity atmosphere experienced during cold weather.
The following steps will help insure that water vapor does not
become a problem.
1. Be sure the heater is sized properly for the application, includ-
ing ample combustion air and circulation air.
2. If high humidity is experienced, a dehumidifier may be used
to help lower the water vapor content of the air.
3. Do not use an unvented room heater as the primary heat
source.
PROVISIONS FOR ADEQUATE COMBUSTION & VENTILATION AIR
This heater shall not be installed in a confined space or unusually
tight construction unless provisions are provided for adequate
combustion and ventilation air.
The National Fuel Gas Code, ANSI Z223.1 defines a confined
space as a space whose volume is less than 50 cubic feet per
1,000 Btu per hour (4.8m3 per kw) of the aggregate input rating
of all appliances installed in that space and an unconfined space
as a space whose volume is not less than 50 cubic feet per 1,000
Btu per hour (4.8m3 per kw) of the aggregate input rating of all
appliances installed in that space. Rooms communicating directly
with the space in which the appliances are installed, through
openings not furnished with doors, are considered a part of the
unconfined space.
The following example is for determining the volume of a typical
area in which the AVFBL-30 or AVFBH-30 may be located and
for determining if this area fits the definition of an unconfined
space.
The maximum input of the AVFBL-30 or AVFBH-30 is 30,000 Btu
per hour. Based on the 50 cubic feet per 1,000 Btu per hour formula,
the minimum area that is an unconfined space for installation of
the AVFBL-30 or AVFBH-30 is 1,500 cubic feet, 50 cubic feet x
30 = 1,500 cubic feet. To determine the cubic feet of the area in
which the AVFBL-30 or AVFBH-30 is to be installed, measure the
length, width and height of the area. Example: The area measures
20 feet in length, 10 feet in width and 8 feet in height, the area is
1,600 cubic feet. The AVFBL-30 or AVFBH-30 can be installed in
this unconfined space with no requirement to provide additional
combustion and ventilation air.
Warning: If the area in which the heater may be operated is smaller
than that defined as an unconfined space or if the building is of
unusually tight construction, provide adequate combustion and
ventilation air by one of the methods described in the National Fuel
Gas Code, ANSI Z223.1, Section 5.3 or applicable local codes.
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 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
or less with openings gasketed or sealed, and
b. Weatherstripping 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 penetrations for plumbing, electrical, and gas lines, and
at other openings.
If the AVFBL-30 or AVFBH-30 heater is installed in a building of
unusually tight construction, adequate air for combustion, venti-
lation and dilution of flue gases shall be provided in accordance
with ANSI Z223.1/NFPA54.

Page 716940-2-0806
GAS SUPPLY
The gas line can be routed either through the floor or wall. The
gas line opening should be made at this time. Location of the
opening will be determined by the position of floor joists and the
valve and union used for servicing.
Check all local codes for requirements, especially for the size and
type of gas supply line required.
Recommended Gas Pipe Diameter
Pipe Length Schedule 40 Pipe Tubing, Type L
(Feet) Inside Diameter Outside Diameter
Nat. L.P. Nat. L.P.
0-10 1/2" 3/8" 1/2" 3/8"
12.7mm 9.5mm 12.7mm 9.5mm
10-40 1/2" 1/2" 5/8" 1/2"
12.7mm 12.7mm 15.9mm 12.7mm
40-100 1/2" 1/2" 3/4" 1/2"
12.7mm 12.7mm 19mm 12.7mm
100-150 3/4" 1/2" 7/8" 3/4"
19mm 12.7mm 22.2mm 19mm
Note: Never use plastic pipe. Check to confirm whether your local
codes allow copper tubing or galvanized.
Note: Since some municipalities have additional local codes, it is
always best to consult your local authority and installation code.
Figure 1
Installing a New Main Gas Cock
Each appliance should have its own manual gas cock.
A manual main gas cock should be located in the vicinity of
the unit. Where none exists, or where its size or location is not
adequate, contact your local authorized installer for installation
or relocation.
Compounds used on threaded joints of gas piping shall be resistant
to the action of liquefied petroleum gases. The gas lines must be
checked for leaks by the installer. This should be done with a soap
solution watching for bubbles on all exposed connections, and if
unexposed, a pressure test should be made.
Never use an exposed flame to check for leaks. Appliance must be
disconnected from piping at inlet of control valve and pipe capped
or plugged for pressure test. Never pressure test with appliance
connected; control valve will sustain damage!
A gas valve and ground joint union should be installed in the gas
line upstream of the gas control to aid in servicing. It is required
by the National Fuel Gas Code that a drip line be installed near
the gas inlet. This should consist of a vertical length of pipe tee
connected into the gas line that is capped on the bottom in which
condensation and foreign particles may collect.
Figure 2
Method of Installing a Tee Fitting Sediment Trap (Figure 2)
The use of the following gas connectors is recommended:
— ANS Z21.24 Appliance Connectors of Corrugated Metal
Tubing and Fittings
— ANS Z21.45 Assembled Flexible Appliance Connectors of
Other Than All-Metal Construction
The above connectors may be used if acceptable by the authority
having jurisdiction.
Pressure Testing of the Gas Supply System
1. To check the inlet pressure to the gas valve, a 1/8" (3mm)
N.P.T. plugged tapping, accessible for test gauge connection,
must be placed immediately upstream of the gas supply con-
nection to the appliance.
2. The appliance and its individual shutoff valve must be discon-
nected from the gas supply piping system during any pressure
testing of that system at test pressures in excess of 1/2 psig
(3.5 kPa).
3. The appliance must be isolated from the gas supply piping
system by closing its individual manual 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).
ATTENTION! If one of the above preocedures results in pressures
in excess of 1/2 psig (14" w.c.) (3.5kPa) on the appliance gas
valve, it will result in a hazardous condition.
Checking Manifold Pressure
Natural gas will have a manifold pressure of approximately 3.5"
(.871kPa) w.c. at the pressure reggulator outlet with the inlet
pressure to the pressure regulator from a minimum of 4.5" w.c.
(1.120kPa) for the purpose of input adjsutments to a maximum
of 10.5" w.c. (2.614kPa) Propane gas will have a manifold
pressure approximately 10.0" w.c. (2.49kPa) at the pressure
regulator from a minimum of 11.0" w.c. (3.237kPa).
A test gage conection is located downstream of the gas appliance
pressure regulator for measuring gas pressure. The connection
is a 1/8 inch 3mm) N.P.T. plugged tapping.

Page 8 16940-2-0806
When facing the front of the appliance the following minimum
clearances to combustible construction must be maintained.
Left side 6 inches (152mm). Right side 6 inches (152mm).
Do not install in alcove or closet.
Rear wall 0 inches (0mm). Ceiling 36 inches (914mm).
Floor (top surface of carpeting, tile, etc.) 2 inches (51mm).
COMBUSTIBLE MATERIAL
Do not attach combustible material to the mantel of your fireplace.
This is a fire hazard.
Figure 5
No greeting card, stocking or ornamentation of any type should be
placed on or attached to the fireplace. This is a heating appliance.
The flow of heat can ignite combustibles.
Figure 6
CLEARANCES
Figure 4Figure 3
Provide adequate clearances around air openings.
Adequate accessibility clearances for purposes of servicing and
proper operation must be provided.

Page 916940-2-0806
Refer to Figure 8 for measurements to attach wall bracket and
heater onto wall. Figure 8 is the front view of heater.
Attachment of Heater Onto Wall Using 10 x 1-1/2" Screws
Attention: Use 10 x 1-1/2" screws to mount heater onto wall
whenever you can use 16" on-center wall studs for attachment
of heater onto wall.
1. Refer to Figure 7 for attachment of (2) standoffs to heater back
with (2) 8 x 3/4" screws.
2. Remove casing front from heater.
3. Locate (2) 16" on-center wall studs. Attach wall bracket to 16"
on-center wall studs with (2) 10 x 1-1/2" screws.
4. Align slots on heater with wall bracket and pivot heater onto
wall bracket.
5. Align clearance hole on interior, left of heater with screw hole
on wall bracket. Attach heater to wall bracket with (1) 10 x
1/2" screw.
6. Installation of heater onto wall is completed.
WALL MOUNT INSTALLATION
Figure 8
Figure 9
Refer to Figure 8 for measurements to attach wall bracket and
heater onto wall. Figure 8 is the front view of heater.
Attachment of Heater Onto Wall Using Plastic Expansion An-
chors
Attention: Use must use plastic expansion anchors to mount heater
onto wall whenever you cannot use 16" on-center wall studs for
attachment of heater onto wall.
1. Refer to Figure 7 for attachment of (2) standoffs to heater back
with (2) 8 x 3/4" screws.
2. Remove casing front from heater.
3. Position wall bracket in correct location on wall. Use clearance
holes on wall brackets to mark (2) mounting holes on wall.
4. After locating mounting holes, drill (2) 5/16" diameter holes
into wall.
5. Insert (2) plastic expansion anchors into (2) 5/16" holes.
6. Attach wall bracket to plastic expansion anchors with (2) 10
x 1" screws. Refer to Figure 9.
7. Align slots on heater with wall bracket and pivot heater onto
wall bracket.
8. Align clearance hole on interior, left of heater with screw hole
on wall bracket. Attach heater to wall bracket with (1) 10 x
1/2" screw.
9. Installation of heater onto wall is completed.
Figure 7

Page 10 16940-2-0806
AVFBH-30/AVFBL-30
Do not, handle log(s) with your bare hands! Always wear gloves
to prevent skin irritation from ceramic fibers. After handling
log(s), wash your hands gently with soap and water to remove
any traces of fibers.
The positioning of the log(s) is critical to the safe and clean
operation of this heater. Sooting and other problems may
result if the log(s) are not properly and firmly positioned in the
appliance.
Refer to Figures 11 and 12 for the following warning.
Warning: Failure to position the parts in accordance with this
diagram or failure to use only parts specifically approved with
this appliance may result in property damage or personal
injury.
PROPER INSTALLATION SEQUENCE:
AVFBH-30 (Figure 11)
1. Remove casing front assembly, two (2) 10 x 1/2" screws.
2. Remove screen assembly, two (2) truss-head Phillips screws.
3. Place rear log into log support brackets. The log support
brackets are located behind main burner.
4. Place front log onto front log support.
5. Replace screen assembly with two (2) truss-head Phillips
screws from Step 2.
6. Replace casing front assembly with two (2) 10 x 1/2" screws
from Step 1.
7. Log placement is completed..
PROPER INSTALLATION SEQUENCE:
AVFBL-30 (Figure 12)
1. Remove casing front assembly, two (2) 10 x 1/2" screws.
2. Remove screen assembly, two (2) truss-head Phillips screws.
3. Place rear log into log support brackets. The log support
brackets are located behind main burner.
LOG PLACEMENT
Figure 11
Figure 12
OPTIONAL FLOOR STAND INSTALLATION
Optional VFBFS Floor Stand Installation
1. Remove (4) 10 x 1/2" screws located in bottom of heater.
2. Align clearance holes on floor stand with screw holes on
bottom of heater (See Figure 10).
3. Attach floor stand to heater with (4) 10 x 1/2" screws re-
moved in Step 1.
4. Installation of optional floor stand is completed.
Installation on Rugs and Tile
If this appliance is installed directly on carpeting, tile or other
combustible material, other than wood flooring, the appliance
shall be installed on a metal or wood panel extending the full
width and depth of the appliance.
Attention: Optional VFBFS Floor Stand meets requirement.
The base referred to above does not mean the fire-proof base as
used on wood stoves. The protection is for rugs that are extremely
thick and light colored tile.
Figure 10
4. Replace screen assembly with two (2) truss-head Phillips
screws from Step 2.
5. Replace casing front assembly with (2) 10 x 1/2" screws from
Step 1.
6. Log placement is completed.
Figure 10

Page 1116940-2-0806
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Set the thermostat (gas control knob) to lowest setting.
3. Turn off all electric power to the appliance (if
applicable).
4. Remove front panel.
5. Push in gas control knob slightly and turn clockwise
to "OFF".
6. Wait ten (10) minutes to clear out any gas. Then smell
for gas, including near the floor. If you smell gas, STOP!
Follow "B" in the safety information above. If you don't
smell gas, go to the next step.
7. Find pilot - follow metal tube
from gas control. The pilot is
attached to the main burner
which is located at bottom
of combustion chamber.
8. Turn knob on gas control counterclockwise
to "PILOT."
9. Push in gas control knob all the way and hold in.
Repeatedly push the piezo ignitor button until pilot is
lit (or use a match to light pilot). Continue to hold the
control knob in for about one (1) minute after the pilot
is lit. Release knob and it will pop back up. Pilot should
remain lit. If it goes out, repeat steps 5 through 9.
• If knob does not pop up when released, stop and
immediately call your service technician or gas
supplier.
• If the pilot will not stay lit after several tries, turn
the gas control knob to "OFF" and call your service
technician or gas supplier.
10. Attention! Gas control has an INTERLOCK latching
device. When the pilot is initially lit and the safety magnet
is energized (pilot stays "ON") the INTERLOCK latching
device becomes operative. If the gas control is turned to
the "OFF" position or gas flow to the appliance is shut
off, the pilot cannot be relighted until the safety magnet
is de-energized (approximately 60 seconds). There will
be an audible "click" when the safety magnet in the gas
control is de-energized. Pilot can now be relighted. Repeat
steps 5 through 9.
11. Turn gas control knob counterclockwise to
"HI"
12. Replace front panel.
13. Turn on all electric power to the appliance (if
applicable).
14. Set thermostat (gas control knob) to desired setting from
"HI" to "LO".
1. Set the thermostat (gas control knob) to lowest setting.
2. Turn off all electric power to appliance if service is to be
performed (if applicable).
3 Push in gas control knob slightly and turn clockwise
to "OFF". Do not force.
TO TURN OFF GAS TO APPLIANCE
FOR YOUR SAFETY READ BEFORE LIGHTING
A. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some gas
is heavier than air and will settle on the floor.
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.
C. Use only your hand to push in or turn the gas control
knob. Never use tools. If the knob will not push in or
turn by hand, don't try to repair it; call a qualified service
technician. Force or attempted repair may result in a fire
or explosion.
D. Do not use this appliance if any part has been 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.
LIGHTING INSTRUCTIONS
WARNING: If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.

Page 12 16940-2-0806
MAIN BURNER FLAME CHARACTERISTICS
There will be a short blue inner flame with a much larger lighter
blue secondary flame. The burner flame may have a small yel-
low tip when hot. Dust in the combustion air will produce an
orange or red flame. Do not mistake the orange or red flame for
an improper yellow flame.
On Propane gas, if a whistling noise (resonation) occurs screw
the orifice fitting toward the main burner in order to reduce the
amount of primary air. The reduction in primary air will soften
the main burner flame and will eliminate the whistling noise
(resonation).
On Propane or Natural gas, if a yellow flame occurs screw the
orifice fitting away from the main burner in order to increase the
amount of primary air. The increase in primary air will sharpen
the main burner flame and will eliminate the yellow flame.
After use, cleaning of the main burner may be required for the
proper flame. The main burner may be cleaned by forcing water
into the ports and the throat of the burner. The burner should be
blown dry or heated to remove all water before replacing. To
remove main burner, see Appliance Maintenance.
PILOT FLAME CHARACTERISTICS
Figure 14 shows a correct pilot flame pattern. The correct flame
will be blue and will extend beyond the thermocouple. The flame
will surround the thermocouple just below the tip. A slight yellow
flame may occur where the pilot flame and main burner flame meet.
Figure 15 shows an incorrect pilot flame pattern. The incorrect
pilot flame is not touching the thermocouple. This will cause the
thermocouple to cool. When the thermocouple cools, the heater
will shut down.
Correct Flame Pattern
Figure 14
Incorrect Flame Pattern
Figure 15
If pilot flame pattern is incorrect, as shown in Figure 15
• See Troubleshooting, page 13.
Cleaning and Maintenance/Pilot
Oxygen Depletion Sensor Pilot (Figure 16)
When the pilot has a large yellow tip flame, clean the Oxygen
Depletion Sensor as follows:
1. Remove screen from casing.
2. Remove front log from front log support on AVFBH-30.
3. Remove front log support.
4. Clean the ODS pilot by loosening nut B from the pilot tubing.
When this procedure is required, grasp nut A with an open end
wrench.
5. Blow air pressure through the holes indicated by the arrows.
This will blow out foreign materials such as dust, lint and
spider webs. Tighten nut B also by grasping nut A.
6. Replace front log support.
7. Replace front log onto front log support on AVFBH-30.
8. Replace screen onto casing.
Figure 16
Figure 13
Warning:
Never use needles, wires, or similar cylindrical objects to
clean the pilot to avoid damaginh the calibrated ruby that
controls the gas flow.

Page 1316940-2-0806
1. Spark electrode does not produce spark.
a. Spark electrode broken - replace.
b. Ignitor wire may not be attached to spark electrode -
attach.
c. Ignitor wire damaged - replace.
d. Piezo ignitor defective - replace.
2. Spark electrode produces spark but pilot does not light.
a. No gas to heater - turn on gas.
b. PILOT position not properly aligned - turn gas control
knob to PILOT position and depress.
c. Pilot is blocked from spider web or dirt - clean pilot, see
Page 12.
3. Pilot flame does not stay "ON" when control knob is
released.
a. Control knob in PILOT position not completely depressed
or held in long enough.
b. INTERLOCK latching device is operative - see "Lighting
Instructions," Page 11, Step 10.
c. Thermocouple not tightened into gas control - tighten
thermocouple.
d. Pilot flame not surrounding thermocouple - clean pilot, see
Page 12. Inlet gas pressure too low, contact gas supplier.
e. Thermocouple defective - replace.
f. Gas control defective - replace.
4. Main burner does not ignite.
a. Main burner orifice is blocked - clean, see "Appliance
Maintenance," above. Inlet gas pressure too low, contact
gas supplier.
5. Heater keeps shutting "OFF" during normal operation.
a. Pilot is blocked - clean pilot, see Page 12.
b. Inlet gas pressure too low, contact gas supplier
APPLIANCE MAINTENANCE
To Remove Main Burner
1. Disconnect pilot assembly from main burner.
2. Disconnect outlet tubing from orifice fitting.
3. Disconnect orifice fitting from main burner.
4. Remove #8 x 1/4" (6mm) screw from burner mounting
bracket.
5. Remove main burner from combustion chamber.
6. Check for gas leaks at all gas connections after main burner
has been replaced into combustion chamber.
To Adjust Orifice Fitting
1. Disconnect outlet tubing from orifice fitting.
2. Screw orifice fitting toward or away from main burner.
3. Connect outlet tubing onto orifice fitting.
4. Check for gas leaks.
To Remove Main Burner Orifice
1. Grasp the orifice fitting with a 5/8" (16mm) open end
wrench.
2. Use 3/8" (10mm) open end wrench to remove main burner
orifice from orifice fitting, turn counterclockwise.
3. Check for gas leaks after main burner orifice has been replaced
into orifice fitting.
Piezo Pilot Ignitor Instructions
Depressing the ignitor button completely causes a spark to occur
at the pilot.
To light the pilot, it is important that the electrode be 1/8" (3mm)
from the pilot. The spark must occur at the point the pilot flame
hits the thermocouple.
On a new installation with air in the gas line, it is suggested that
THERMOSTAT OPERATION
To ignite main burner, rotate gas control knob counterclockwise
toward HI setting. To shut down main burner, rotate gas control
knob clockwise toward LO setting.
The gas control modulates from a minimum input of 14,000 BTU
/HR (4.1KW/H) (LO setting) to a maximum input of 30,000 BTU/
HR (8.8KW/H) (HI setting). The hydraulic thermostat bulb which
is located at the casing assembly bottom adjusts the main burner
flame between minimum input and maximum input.
Note: When the hydraulic thermostat bulb is "satisfied" the main
burner flame will shut "OFF" with the pilot flame remaining
"ON".
The LO and HI setting has temperature range of approximately
55°F (12.78°C) to 90°F (32.22°C), respectively. This is the tem-
perature at the hydraulic thermostat bulb not the room temperature.
The owner is advised to determine the particular heat setting that
is desired for comfort, as heating requirements are different for
every owner.
Attention: If the owner does not want the main burner to ignite
and turns the gas control knob to the Lo setting, the main burner
will still ignite if the temperature at the hydraulic thermostat bulb
drops to 55°F (12.78°C) .
If no heat is desired, turn the gas control knob to the PILOT
position.
TROUBLESHOOTING
SYMPTOMS - POSSIBLE CAUSES AND CORRECTIONS

Page 14 16940-2-0806
PLEASE NOTE: When ordering parts, it is very important that part number and description of part coincide.
14 R-6468 FRONT LOG - AVFBH-30
15 11942 REFLECTOR ASSEMBLY
- AVFBH-30 (INCLUDES 11)
15 12876 REFLECTOR ASSEMBLY
- AVFBL-30 (INCLUDES 11)
16 11843 SCREEN ASSEMBLY
17 11946 CASING FRONT ASSEMBLY
- AVFBH-30 ONLY (INCLUDES
BRASS LOUVERS)
17 11927 CASING FRONT ASSEMBLY -
AVFBL-30 ONLY
NOT SHOWN 11937 TUBING ASSEMBLY - INLET
REGUALTOR TO VALVE
NOT SHOWN 11938 TUBING ASSEMBLY - VALVE TO
BURNER
NOT SHOWN 11941 TUBING ASSEMBLY - VALVE TO
PILOT
NOT SHOWN R-2390 IGNITOR WIRE
NOT SHOWN P-214 ORIFICE - LP
NOT SHOWN P-270 ORIFICE - NAT
NOT SHOWN P-212 ORIFICE HOLDER
NOT SHOWN R-6573 STANDOFF (2 REQUIRED)
NOT SHOWN R-2685 MIN. RATE SCREW LP 1.30
NOT SHOWN R-2684 MIN. RATE SCREW NAT 2.30
USE ONLY MANUFACTURER'S REPLACEMENT PARTS. USE OF ANY OTHER PARTS COULD CAUSE INJURY OR DEATH.
Index Part
No. Number Description
Index Part
No. Number Description
AVFBH-30 AND AVFBL-30 PARTS LIST
1 11847 WALL BRACKET
2 R-2313 PIEZO IGNITOR
3 11928 CASING ASSEMBLY
4 SR-113 VALVE BRACKET
5 12274 VALVE ASSEMBLY - NAT ONLY
5 12275 VALVE ASSEMBLY - LP ONLY
6 11844 UPPER SHIELD
7 R-2882 CABLE CLIP
8 11845 BURNER REGULATOR BRACKET
(2 REQ’D)
9 R-6419 BURNER
10 R-6462 ODS PILOT ASSEMBLY - NAT ONLY
10 R-6463 ODS PILOT ASSEMBLY - LP ONLY
11 11851 FRONT LOG SUPPORT - AVFBL-30
ONLY
11 11846 FRONT LOG SUPPORT - AVFBH-30
ONLY
12 R-2784 INLET REGUALTOR - NAT ONLY
12 R-2480 INLET REGULATOR - LP ONLY
13 R-6467 REAR LOG - AVFBH-30 AND
AVFBL-30
PARTS LIST
Parts can be ordered only through your service person or dealer. For best results, the service person or dealer should order parts through
the distributor. Parts can be shipped directly to the service person/dealer.
All parts listed in the Parts List have a Part Number. When ordering parts, first obtain the Model Number from the name plate on your
equipment. Then determine the Part Number (not the Index Number) and the Description of each part from the following appropriate
illustration and list. Be sure to give all this information.
Furnace Model Number Part Description
Furnace Serial Number Part Number
Type of Gas (Propane or Natural)
Do not order bolts, screws, washers or nuts. They are standard hardware items and can be purchased at any local hardware store.
Shipments contingent upon strikes, fires and all causes beyond our control.
HOW TO ORDER REPAIR PARTS
Empire Comfort Systems, Inc. Nine Eighteen Freeburg Ave. Belleville, Illinois 62222-0529

Page 1516940-2-0806
PARTS VIEW

Page 16 16940-2-0806
INSTALLING OPTIONAL BLOWER VFB-BK. If heater is installed
on wall, in order to install optional blower, the heater must be removed
from wall.
1. Remove casing front assembly, (2) screws.
2. Align (4) clearance holes on motor mounting bracket with (4)
screw holes on casing assembly back and attach motor mounting
bracket with (4) #10 x 5/16" (8mm) screws provided. The motor
wires should be facing to the left and then routed behind the motor
mounting bracket and to the right as depicted in drawing below.
3. Route cord set through 9/16" (14mm) hole on casing assembly
back. Insert approximately 3" (76mm) of cord set into casing
assembly back.
4. Use #10 x 5/16" (8mm) screw included in hardware package to
attach green ground wire from cord set to screw hole which is
adjacent to cord set access hole on casing back.
5. Attach fan control to upper shield with (2) #8 x 3/8" screws.
6. Attach (2) fan control wires to fan control.
7. Attach (1) pin terminal from black (hot) wire, smooth insulation
on cord set to (1) socket terminal on fan control assembly.
8. Attach (1) pin terminal from black (neutral) wire, ribbed insulation
on cord set to (1) socket terminal on motor wire.
9. Attach (1) pin terminal on fan control assembly to (1) socket
terminal on motor wire.
10. Grasp cord set at casing assembly back and pull excess cord set
through casing assembly back and secure cord set in casing assembly
back with the strain relief provided.
11. Replace casing front assembly, (2) screws.
Attention: Be sure all wires are located away from fan blade.
VFB-BK for Unvented Room Heater Model AVFBL-30 or AVFBH-30
OPTIONAL BLOWER INSTALLATION INSTRUCTIONS

Page 1716940-2-0806
. ...
.
Wiring
The appliance, when installed, must be electrically grounded in
accordance with local codes or, in the absence of local codes, with
the National Electrical Code ANSI/NFPA No. 70, if an external
electrical source is utilized. This appliance is equipped with a
three-prong [grounding] plug for your protection against shock
hazard and should be plugged directly into a properly grounded
three-prong receptacle. Do not cut or remove the grounding prong
from this plug. For an ungrounded receptacle, an adapter, which
has two prongs and a wire for grounding, can be purchased,
plugged into the ungrounded receptacle and its wire connected
to the receptacle mounting screw. With this wire completing the
ground, the appliance cord plug can be plugged into the adapter
and be electrically grounded.
CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.
Oiling Blower Motor
The blower motor does not have oiling holes. Do not attempt to
oil the blower motor.
WARNING:
Unplugging of blower accessory will not stop the heater
from cycling. To turn off gas to the unvented heater: Push in
gas control knob slightly and turn clockwise to "OFF." Do
not force.
Index Part
No. Number Description
1 R-1468 Bushing
2 VF-153 Mounting Bracket
3 R-2695 Motor
4 R-2696 Fan Blade
5 R-2503 Fan Control
6 R-2395 Wire Assembly
7 VF-068 Cord Set
PARTS LIST
If any of the original wire as supplied with the appliance must be replaced,
it must be replaced with type 125°C wire or its equivalent.
OPTIONAL BLOWER INSTALLATION INSTRUCTIONS (continued)

Page 18 16940-2-0806
OPTIONAL MANTEL INSTALLATION INSTRUCTIONS
1. Place base adjacent to gas inlet supply.
2. Remove thermostat bulb from plastic bracket located on
exterior, bottom of heater. Loosen screw for plastic bracket,
turn plastic bracket 180° (to the outside of heater), tighten
screw for plastic bracket and replace thermostat bulb into
plastic bracket.
3. Place heater onto base.
4. Attach gas inlet supply to heater. Check for gas leaks on all
gas connections.
5. Lay brass frame assembly face down on a non-abrasive
surface.
6. Insert one (1) flat crimp angle and one (1) crimp angle with
set screws into channel on brass frame top. Repeat process
on opposite end of brass frame top with two (2) additional
crimp angles. Figure 1.
7. Align channels on brass frame sides with crimp angles
and insert two (2) brass frame sides into the two (2) sets of
crimp angles. Tighten set screws in crimp angles in order
to assemble brass frame.
8. Place brass frame around front of heater. Align six (6)
clearance holes on frame with six (6) screw holes on
heater.
9. Align clearance holes on two (2) mounting brackets with
bottom clearance holes on brass frame sides. Figure 2.
10. Use four (4) truss-head Phillips screws to attach mounting
brackets and brass frame sides to heater.
11. Align clearance holes on two (2) mounting brackets with
clearance holes on brass frame top.
12. Use two (2) truss-head Phillips screws to attach mounting
brackets and brass frame top to heater.
13. Align notches on mantel sides with notches on base. Insert
mantel sides into mantel base and behind brass frame
sides.
14. Insert breastboard behind brass frame top and in front of
mounting brackets on brass frame top. The breastboard top
will be flush with the mantel sides.
15. Use four (4) 1-1/4"wood screws to attach breastboard to
mantel sides.
16. Align two (2) nail flange brackets with pilot holes in mantel
sides. Figure 3.
17. Use four (4) 1/2" wood screws to attach nail flange brackets
to mantel sides.
18. Use two (2) 10 x 1" screws to attach nail flange brackets to
wall.
19. Place mantel top onto breastboard and mantel sides.
20. Installation of optional mantel is completed.

Page 1916940-2-0806
SERVICE NOTES

Page 20 16940-2-0806
Empire Comfort Systems, Inc.
Nine Eighteen Freeburg Ave.
Belleville, Illinois 62220-2623
PH: 1-618-233-7420
PH: 1-800-851-3153
FAX: [phone]
FAX: [phone]
E-MAIL: [e-mail]
WEB SITE: www.empirecomfort.com