White Mountain Hearth VFDR18LB Quick start guide

Page 121565-3-0906
INSTALLATION INSTRUCTIONS
AND OWNER'S MANUAL
UNVENTED GAS LOG HEATER OR
VENTED DECORATIVE APPLIANCE
MODELS
VFDR18LB(N,P)-1
VFDR24LB(N,P)-1
VFDR30LB(N,P)-1
EFFECTIVE DATE
SEPTEMBER 2006
Vented/Vent-Free Burner and Logs
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 7.
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.
WATER VAPOR: A BY-PRODUCT OF UN-
VENTED 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.
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.
— 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 21565-3-0906
SECTION PAGE
IMPORTANT SAFETY INFORMATION ........................................................................................ 3
SAFETY INFORMATION FOR USERS OF LP-GAS ..................................................................... 4
INTRODUCTION ............................................................................................................................. 5
GENERAL INFORMATION ............................................................................................................ 6
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS ..................................... 6
PROVISIONS FOR ADEQUATE COMBUSTION & VENTILATION AIR .................................. 7
CLEARANCES ............................................................................................................................7 - 8
COMBUSTIBLE MATERIAL .......................................................................................................... 9
FIREPLACE PREPARATION .......................................................................................................... 9
INSTALLING AS A VENTED APPLIANCE ................................................................................. 10
BEFORE FULLY INSTALLING THE APPLIANCE ..................................................................... 10
GAS SUPPLY .................................................................................................................................. 11
VFDR(18,24) LOG PLACEMENT (5 LOG SET) .......................................................................... 12
VFDR30 LOG PLACEMENT (7 LOG SET) .................................................................................. 13
OPERATION INSTRUCTIONS/FLAME APPEARANCE ............................................................ 14
WIRING ........................................................................................................................................... 15
VFDR(18,24,30)LB LIGHTING INSTRUCTIONS ....................................................................... 16
PILOT FLAME CHARACTERISTICS .......................................................................................... 17
CLEANING AND SERVICING ...................................................................................................... 18
TROUBLESHOOTING - SYMPTOMS, POSSIBLE CAUSES AND CORRECTIONS .............. 19
PARTS LIST .................................................................................................................................... 20
PARTS VIEW .................................................................................................................................. 21
HOW TO ORDER REPAIR PARTS ............................................................................................... 21
SERVICE NOTES ......................................................................................................................22-23
TABLE OF CONTENTS

Page 321565-3-0906
WARNING
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 written 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 SYSTEM
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.
• 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 bath-
room.
• Never burn solid fuels in a fireplace where a gas log set is in-
stalled.
• 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.
• Children and adults should be alerted to the hazards of high sur-
face temperature and should stay away to avoid burns or clothing
ignition.
• Young children should be carefully supervised when they are in
the same room as the appliance.
• This unit complies with ANSI Z21.11.2 Unvented Heaters and it
also complies with ANSI Z21.60 Decorative Vented Appliances for
Solid Fuel Burning Fireplaces. State or local codes may only allow
operation of this appliance in a vented configuration. Check your
state or local codes.
• Correct installation of 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.
• Avoid any drafts that could alter burner flame patterns. Do not
allow fans to blow directly into the fireplace. Do not place a blower
inside burn box area of firebox. Ceiling fans may create drafts that
alter burner flame patterns. Sooting and improper burning will
occur as a result of drafts.
• WARNING: Do not allow fans to blow directly into the fireplace.
Avoid any drafts that alter burner flame patterns.
• WARNING: Do not use a blower insert, heat exchanger insert or
other accessory not approved for use with this heater.
• Periodic examination and cleaning of the venting system of the
solid-fuel burning fireplace, including frequency of such examination
and cleaning, by a qualified agency.
• The installation must conform with local codes or, in the absence
of local codes, with the National Fuel Gas Code, ANSI Z223.1/
NFPA54.
• NOTE: Installation and repair should be done by a qualified service
person. The appliance should be inspected before use and at least
annually by a qualified service person. More frequent cleaning may
be required due to excessive lint from carpeting, bedding material,
etc. It is imperative that the control compartment, burners and
circulating air passageways of the appliance be kept clean.
• Any safety screen or guard removed for servicing an appliance must
be replaced prior to operating the appliance. Provide adequate
combustion and ventilation air.
• The flow of combustion and ventilation air MUST NOT be ob-
structed.
• Provide adequate clearances around air openings into the combus-
tion chamber and adequate accessibility clearance for servicing
and proper operation. NEVER obstruct the front opening of the
appliance.
• An unvented room heater intended for installation in a solid-fuel
burning fireplace shall comply with the following instructions.
• A fireplace screen must be in place when the appliance is operating
and, unless other provisions for combustion air are provided, the
screen shall have an opening(s) for introduction of combustion
air.
• Solid-fuels shall not be burned in a masonry or UL 127 factory-built
fireplace in which an unvented room heater is installed.
• Any glass doors shall be fully opened when the appliance is in
operation.
• Any outside air ducts and/or ash dumps in the fireplace shall be
permanently closed at time of appliance installation.
• WARNING: Failure to keep the primary air opening(s) of the
burner(s) clean may result in sooting and property damage.
• WARNING: Before installing in a solid-fuel burning fireplace, the
chimney flue and firebox must be cleaned of soot, creosote, ashes
and loose paint by a qualified chimney cleaner.
IMPORTANT SAFETY INFORMATION

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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
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.
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 precau-
tions which can protect both you and your family from an
accident. Read them carefully now, then review them point
by point with the 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.
• 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 under
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 com-
pletely 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 con-
tinue 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 521565-3-0906
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.
WARNING: This appliance is for installation only in a solid-
fuel burning masonry or UL 127 factory-built fireplace or in a
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 instructions stating
it has not been tested or should not be used with unvented
gas logs.
WARNING: Any modification to this unvented gas 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.
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 heating
value. Contact the manufacturer or your gas company before
changing spud/orifice size.
IMPORTANT: Read all instructions carefully before starting
installation. Failure to follow these installation instructions may
result in a possible fire hazard and will void the warranty.
Save this manual for future reference.
Please read this manual before installing and using the
appliance.
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/vented decorative appliance.
3. Installer should show owner how to start and operate unvented
room heater/vented decorative appliance.
Always consult your local Building Department regarding
regulations, codes or ordinances which apply to the installation of
an unvented room heater/vented decorative appliance.
This appliance may be installed in an aftermarket* 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.
Solid-fuels shall not be burned in a fireplace where a vented
decorative appliance is installed.
A vented decorative appliance must be installed only in a solid-
fuel burning fireplace with a working flue and constructed of non-
combustible material.
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
making the change.
Important
All correspondence should refer to complete Model Number, Serial
Number and type of gas.
Attention: During initial use of log you will detect an odor as
the log is cured.
ACCESSORIES
Description Color
EK-1 Embers Kit
PE-20 Platinum Embers
ELH-1 Fireplace Hood for Vent-Free Logs Black
ELH-2 Fireplace Hood for Vent-Free Logs Brass
FRBC Battery Operated Remote Control
FRBTC Battery Operated Remote Control with Thermostat
FREC Electric Remote Control
FWS Wall Switch
TRW Remote Wall Thermostat
TMV Wall Thermostat, Millivolt - Reed Switch
PRODUCT SPECIFICATIONS
Natural Gas (Millivolt) Propane Gas (Millivolt)
Regulator Pressure Setting 3.5" W.C. 10.0" W.C.
Gas Inlet Pressure Maximum
Minimum
10.5" W.C.
5.0" W.C.
13.0" W.C.
11.0" W.C.
Model Gas Valve Type Btu/hr.
Max. Rate
Btu/hr.
Min. Rate
VFDR18LBN Natural Millivolt 28,000 19,000
VFDR18LBP Propane Millivolt 28,000 22,000
VFDR24LBN Natural Millivolt 34,000 24,000
VFDR24LBP Propane Millivolt 34,000 26,000
VFDR30LBN Natural Millivolt 40,000 27,000
VFDR30LBP Propane Millivolt 40,000 31,000
INTRODUCTIONS

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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.
Keep room area clear and free from combustible materials, gasoline
and other flammable vapors and liquids.
Unvented gas heaters are a supplemental zone heater. They are not
intended to be a primary heating appliance. Water vapor produced
by an unvented heater can create moisture problems in a home
when operated for extended periods of time.
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 2-3 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 continued use.
This appliance must not be used with glass doors in the closed
position. This can lead to pilot outages and severe sooting outside
the fireplace.
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 replace any part of the control system and any gas control
which has been under water.
WARNING: This appliance is equipped for (natural or
propane) gas. Field conversion is not permitted.
Before you get started
Carefully inspect the contents for shipping damage. If any parts are
missing or damaged, immediately inform the dealer from whom
you purchased the appliance. Do not attempt to install any part of
the appliance unless you have all parts in good condition.
Make sure you have received all parts:
Check your packing list to verify that all listed parts have been
received. You should have the following:
• Gas log grate/burner assembly.
• Two (2) masonry anchoring screws and two (2) 10 x 1/2" black
sheet metal anchoring screws.
• Ceramic Log Set - (5 Piece on VFDR(18,24), (7 piece on
VFDR30)
• Plastic bag containing glowing embers (rock wool) for burner
coverage.
This millivolt controlled heater may be operated with optional
devices for REMOTE/OFF/ON functions.
a. Wall switch or thermostat with wire.
b. Hand held remote control with ON/OFF switch or thermostat.
Handle the gas log burner assembly by the grate and legs only.
Do not pick the unit up by the burner.
Gloves are recommended when handling logs to prevent skin
irritation. Logs are fragile - Handle with care.
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 that either in
person or through a representative is engaged in and is responsible
for (a) the installation, testing, or replacement of gas piping or (b) the
connection, installation, testing, repair, or servicing of equipment;
that is experienced in such work; that is familiar with all precau-
tions required, and that has complied with all the requirements of
the authority having jurisdiction.
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.
In the State of Massachusetts, unvented propane and natural
gas-fired space heaters shall be prohibited in bedrooms and
bathrooms.
The installation must conform with local codes or, in the absence
of local codes, with the National Fuel Gas Code, ANSI Z223.1.*
*Available from the American National Standards Institute, Inc. 11 West 42nd St.,
New York, N.Y. 10018.
High Altitude
When installing this unit at an elevation above 2,000 feet (in the
United States), it may be necessary to decrease the input rating by
changing the existing burner orifice to a smaller size. Generally,
input should be reduced 4 percent for each 1,000 feet above sea
level. However, if the heating value of the gas has been reduced,
this general rule may not apply. Check with local gas utility for
proper orifice size identification.
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 must be used 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, including
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
(an entire house).
GENERAL INFORMATION
WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS

Page 721565-3-0906
ventilation air by one of the methods described in the National Fuel
Gas Code, ANSI Z223.1, Section 5.3. or applicable local codes.
Example of Large Room with 1/2 Wall divider.
Figure 1
The following formula can be used to determine the maximum heater
rating per the definition of unconfined space:
Btu/Hr = (L1 + L2)FT x (W)FT x (H)FT x 1000
50
If the area in which the heater may be operated is smaller than that defined
as an unconfined space, provide adequate combustion and ventilation air
by one of the methods described in the National Fuel Gas Code, ANSI
Z223.1, Section 5.3.
Adhere to all codes, or in their absence, the latest edition of THE
NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which can be
obtained from:
American National Standards Institute National Fire Protection Association, Inc.
11 West 42nd St. Batterymarch Park
New York, NY 10018 Quincy, MA 02269
Minimum Dimensions For Solid Fuel Burning Fireplaces
UL127 Factory Built Fireplaces (Figure 2)
Model A B C D
VFDR18 17" 12" 28" 17"
VFDR24 23" 12" 30" 18"
VFDR30 26" 12" 34" 20"
The dimensions shown and defined in the fireplace manufacturer’s
instructions are minimum clearances to maintain in installing this
heater. Left and right clearances are determined when facing the
front of the heater.
Glass Doors
Make sure that glass doors are open during all operations of
the logset. The opening of the glass door frame should be
the dimension used for the minimum front opening of the
firebox.
Follow these instructions to ensure safe installation.
Failure to follow instructions exactly can create a fire hazard.
Figure 2
This heater shall not be installed in a confined space unless provi-
sions are provided for adequate combustion and ventilation air.
The National Fuel Gas Code 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 (4.8 m3
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.
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. 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
penetrations for plumbing, electrical, and gas lines, and at
other openings.
If your home meets all of the three criteria above, you must
provide additional fresh air.
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
PROVISIONS FOR ADEQUATE COMBUSTION & VENTILATION AIR
CLEARANCES

Page 8 21565-3-0906
Mantel Clearances with Hood (Figure 5)
You must have non-combustible materials above the fireplace
opening. Non-combustible material must extend at least 8" above
fireplace opening. With sheet metal, you must have non-combustible
material behind it.
Heat resistant materials such as slate and marble must be at least
1/2" thick. Sheet metal should not be installed onto combustible
material.
Example: A mantel may project from the wall a maximum of 2" at
a minimum of 13-1/2" above the opening, and a maximum of 6"
at a minimum of 15" above the opening.
Figure 5
If your installation does not meet the above minimum clearances,
you must proceed to one of the following steps:
• Operate the heater with the flue damper open. See page 10 for
Installing as a Vented Appliance.
• Raise the mantel to the proper height.
• Remove the mantel.
Floor Clearance (Figure 6)
If installing heater at floor level, the minimum distance to com-
bustibles is “0” inches.
Figure 6
Sidewall & Ceiling Clearances (Figure 3)
Figure 3
The sides of the fireplace opening must be 6" from any combustible
wall. The ceiling must be at least 41" (for 18", 24" and 30" logs)
from the fireplace opening.
Mantel Clearances Without Hood (Figure 4)
You must have non-combustible materials above the fireplace
opening. Non-combustible material must extend at least 12"
above fireplace opening. With sheet metal, you must have non-
combustible material behind it.
Heat resistant materials such as slate and marble must be at least
1/2" thick. Sheet metal should not be installed onto combustible
material.
Figure 4
If your installation does not meet the above clearances, you must
proceed to one of the following steps:
• Use a hood
• Operate the heater with flue damper open. See page 10 for Install-
ing as a Vented Appliance.
• Raise the mantel to the proper height.
• Remove the mantel.
Non-Combustible
Material Distance
Requirements for Safe Installation
12" or more Non-combustible material
Less than 12" Non-combustible material must be extended
to at least 8" with the installation of the
optional fireplace hood. If you cannot extend
non-combustible material at least 8", you must
operate heater with flue damper open.
CLEARANCES (continued)
18”, 24”, 30” Log 41”
6”
28”
12”
HEATER IN FIREPLACE
OR FIREBOX
HEAT RESISTANT
MATERIAL
12” WITHOUT
HOOD
10” and less Mantel
13.5”
14.25”
15.0”
16.0”
HOOD
HEATER IN
FIREPLACE
OR FIREBOX
HEAT RESISTANT
MATERIAL
8” WITH HOOD
8” Mantel
6” Mantel
4” Mantel
2” Mantel

Page 921565-3-0906
FOR MASONRY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR
VENTING COMBUSTION PRODUCTS FROM DECORA-
TIVE APPLIANCES FOR INSTALLATION IN SOLID FUEL
BURNING FIREPLACES
* Height is from hearth to top of chimney and the minimum
height is 6 feet.
** Chart shows minimum opening (sq. in.) for given height and
input rate.
• Turn off gas supply to fireplace or firebox.
• Have the fireplace floor and chimney professionally cleaned to
remove ashes, soot, creosote or other obstructions.
Have this cleaning performed annually after installation.
• Seal any fresh air vents or ash clean-out doors located on floor
or wall of fireplace. If not, drafting may cause pilot outage or
sooting. Use a heat-resistant sealant. Do not seal chimney flue
damper.
Install and operate the appliance as directed in this manual.
FOR FACTORY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR
VENTING COMBUSTION PRODUCTS FROM DECORA-
TIVE APPLIANCES FOR INSTALLATION IN SOLID FUEL
BURNING FIREPLACES
* Height is from hearth to top of chimney and the minimum
height is 10 feet.
** Chart shows minimum opening (sq. in.) for given height and
input rate.
Do not attach combustible material to the mantel of your fireplace.
This is a fire hazard.
Figure 7
No greeting card, stockings 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 8
Appliance Input Rate (BTU/hr)
20 30 40
Chimney
Height* (ft)
Minimum Opening** (sq. in.)
10 11.3 16.6 22.1
15 8.6 12.6 17.3
20 7.5 10.8 14.5
25 6.6 9.6 12.6
30 6.2 9.1 11.3
35 5.7 8.0 10.8
40 5.3 7.5 10.2
Appliance Input Rate (BTU/hr)
20 30 40
Chimney
Height* (ft)
Minimum Opening** (sq. in.)
6 17.6 25.7 33.8
8 16.5 23.7 31.2
10 15.1 21.7 28.7
15 14.1 19.9 26.1
20 12.9 18.5 23.7
30 12.2 16.9 21.6
COMBUSTIBLE MATERIAL
FIREPLACE PREPARATION

Page 10 21565-3-0906
Notice (Damper Clamp Installation)
When installing your log set as a vented installation the damper
clamp must be used.
When installing your log set as a vent-free installation the damper
clamp can be used to eliminate the potential for odors when burning
the logs for the first time.
Installing Damper Clamp (Figure 9)
Remove all ashes or other debris from the fireplace. If the fireplace
is equipped with an ash dump be sure to seal the door with furnace
cement or high temperature silicone. Be sure to check the damper
for proper operation and verify that the flue passageway is open.
Place the clamp over the lip of the damper and tighten the hold
down bolt until the clamp is securely attached to the damper. This
will prevent the damper from accidentally closing.
Manual and millivolt controlled gas logs may be installed as a
vented decorative log set in compliance with ANSI Z21.60 and
National Fuel Gas Code. When the gas logs are operated with the
damper open, non-combustible material and minimum mantel
requirements do not apply.
• Turn off the gas supply to the fireplace or firebox.
• Seal any fresh air vents and/or ash clean-out doors located on
the floor or wall of the fireplace. If left unsealed, drafting may
cause pilot outage or sooting. Use a heat resistant sealant. Do
not seal the chimney flue damper.
Before installing in a solid fuel burning fireplace, the chimney flue
and firebox must be cleaned of soot, creosote, ashes and loose paint
by a qualified chimney cleaner.
You must secure the gas log heater to the fireplace floor. If
not, the entire unit may move when you adjust the controls.
Movement of unit may cause shifting of the gas logs which
leads to sooting and improper burning. Grate movement
could cause a gas leak.
Special care is required if you are installing the unit into a
sunken fireplace. You must raise the fireplace floor to allow
access to gas log controls. This will insure adequate air flow
and guard against sooting. Raise the fireplace floor using
noncombustible materials.
Assembly Procedure: (Figure 10)
1. Center the gas log unit in the fireplace or firebox. Make certain
the front feet of the grate sit inside the front edge of the fireplace
or firebox.
2. An anchor hole is provided in the two bottom side members of
the grate frame. After centering the grate correctly, mark the
hole positions on the fireplace/firebox floor. Drill two (2) 5/32"
diameter holes approximately 1-1/2" deep for masonry screws
or 1/8" hole for sheet metal screws.
3. Anchor the grate to the fireplace/firebox floor using the screws
provided. Refer to Figure 10.
Proper installation of the grate is essential to prevent any move-
ment of the gas logs and controls during operation.
Figure 10
Figure 9
ANCHOR SCREW
LOCATIONS
INSTALLING AS A VENTED APPLIANCE
BEFORE FULLY INSTALLING THE APPLIANCE

Page 1121565-3-0906
Check all local codes for requirements, especially for the size and
type of gas supply line required.
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.
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 ad-
equate, 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 11
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. The state of Massachusetts requires that a flexible
appliance connector cannot exceed three feet in length.
Pressure Testing of the Gas Supply System
1. To check the inlet pressure to the gas valve, a 1/8" (3.175mm)
N.P.T. plugged tapping, accessible for test gauge connection, must
be placed immediately upstream of the gas supply connection
to the appliance.
2. The appliance and its individual shutoff valve must be
disconnected 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 procedures results in pressures in excess
of 1/2 psig (14" w.c.) (3.5 kPa) on the appliance gas valve, it will
result in a hazardous condition.
Recommended Gas Pipe Diameter
Pipe Length Schedule 40 Pipe
Inside Diameter
Tubing, Type L
Outside Diameter
Nat. L.P. Nat. L.P.
0-10 feet
0-3 meters
1/2”
12.7mm
3/8”
9.5mm
1/2”
12.7mm
3/8”
9.5mm
10-40 feet
4-12 meters
1/2”
12.7mm
1/2”
12.7mm
5/8”
15.9mm
1/2”
12.7mm
40-100 feet
13-30 meters
1/2”
12.7mm
1/2”
12.7mm
3/4”
19mm
1/2”
12.7mm
100-150 feet
31-46 meters
3/4”
19mm
1/2”
12.7mm
7/8”
22.2mm
3/4”
19mm
GAS SUPPLY

Page 12 21565-3-0906
Before you begin: if you are installing logs onto the VFDR18 or
VFDR24 models, this burner assembly is supplied with a set of five
ceramic fiber logs. Do not handle these logs with your bare hands!
Always wear gloves to prevent skin irritation from ceramic fibers.
After handling logs, wash your hands gently with soap and water
to remove any traces of fibers.
The positioning of the logs is critical to the safe and clean operation
of this burner assembly. Sooting and other problems may result
if the logs are not properly and firmly positioned on the burner
assembly. Refer to Figure 12 and Figure 13 and corresponding
WARNING: when completing following log placement instruc-
tions.
1. Place front logs (#1 and #2) between front grate flange and
main burner. Align notches on front logs with locator tabs in
base.
2. Place middle log (#3) between front and rear loop of burner.
Note: Do not place log on top of pilot assembly.
3. Place rear log (#4) on rear log shelf. Bottom flange of log must
be placed between the log shelf and burner tube.
4. Place front twig (#5) onto (#1) log and flat area on (#3) log.
The bottom of the front twig is to be placed behind the grate
tang that is second from the left.
EMBER MATERIAL PLACEMENT ON BURNER
5. After all logs are positioned properly, apply Rockwool ember
material to the front burner port area. To apply, carefully
separate the ember material into small amounts no larger than
"dime size" pieces. Fluffed up pieces one layer thick on top
of the burner generally works best, and will provide the best
ember glow. Do not place ember material more than one layer
thick. No more than (2) two small packets of ember material
(part no. 15998) evenly placed on the burner, is recommended
on VFDR18 and VFDR24 models. Using additional ember
material will decrease the amount of ember glow effect. Extra
ember material should be saved for future ember applications
as necessary. See Figure 13.
Figure 12
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.
Attention: Do not use Figure 12 or Figure 13 to order logs. Refer
to parts list on page 20 and parts view on page 21 to order logs
and/or ember material for your appropriate model.
Figure 13
1
4
5
3
2
EMBER MA
PLACEMENT
(SHADED AREA ONLY)
TERIAL
VFDR(18,24) LOG PLACEMENT (5 LOG SET)

Page 1321565-3-0906
Before you begin: If you are installing logs onto the VFDR30
model, this burner assembly place is supplied with a set of seven
ceramic fiber logs. Do not handle these logs with your bare hands.
Always wear gloves to prevent skin irritation from ceramic fibers.
After handling logs, wash your hands gently with soap and water
to remove any traces of fiber.
The positioning of logs is critical to safe and clean operation of
this burner assembly. Sooting and other problems may result if the
logs are not properly and firmly positioned on the burner assembly.
Refer to Figure 14 and Figure 15 and corresponding WARNING:
when completing following log placement steps.
1. Place front logs (#1, #2, and #3) between grates and main
burner. Align notches on front logs with locator tabs in base.
2. Place middle log (#4) between front and rear loop of burner.
Note: do not place on top of pilot assembly.
3. Place rear log (#5) on rear log shelf. Bottom flange is to be
placed between the log shelf and burner tube.
4. Place bottom front twig (#6) onto flat areas of middle log (#4)
and bottom end of front twig to the back side of the grate tang
(4th one from the left).
5. Place the rear twig (#7) onto flat area of rear log (#5) and over
the front of the front twig.
Ember Material Placement on Burner
6. After all logs are properly positioned, place small "dime" size
pieces of Rockwool lightly across the front burner tube ports.
Place the ember material (Rockwool pieces) side by side. Do
not stack more than one layer of embers across the burner
ports. No more than (1) one packet of ember material (part
number 15999) evenly placed on the burner, is recommended
on VFDR30 models. See Figure 15.
Figure 15
VFDR30 LOG PLACEMENT (7 LOG SET)
Figure 14
12
3
4
6
57
EMBER MATERIAL
PLACEMENT
(SHADED AREA ONLY)
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.
Attention: Do not use Figure 14 or Figure 15 to order logs. Refer
to parts list on page 20 and parts view on page 21 to order logs
and/or ember material.

Page 14 21565-3-0906
Flames from the pilot (rear right back side of the pan burner) as
well as the main flame should be visually checked as the log set
is installed.
In normal operation at full rate, the flame appearance should be sets
of yellow flames above the rear burner section, and shorter blue
flames with glowing embers on the front burner section.
NOTE: all flames will be random by design, flame height will go
up and down.
Avoid any drafts that alter burner flame patterns. Do not allow fans
to blow directly into fireplace. Do not place a blower inside the
burner area of the firebox. Ceiling fans may create drafts that alter
flame patterns. Sooting and improper burning will result.
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 2-3 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 will be slight and will disappear with
continued use.
Millivolt - Figure 16
VALVE PRESSURE TEST
PORT ACCESS HOLES
ON/OFF/PILOT
CONTROL KNOB
HI/LO CONTROL
KNOB
ON/OFF/REMOTE
SWITCH
PIEZO
IGNITOR
BURNER TUBE
PILOT ASSEMBLY
OPERATION INSTRUCTIONS/FLAME APPEARANCE

Page 1521565-3-0906
Thermostats are not approved on vented decorative appliances.
Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation. Verify
proper operation after servicing.
18", 24" and 30" Gas Logs (Millivolt) thermopile is self powered
gas valve and does not require 110 volts. See Figure 17 to provide
optional wall switch, thermostat, or remote control. Maximum
length of 20 feet of 16 AWG to conductor wires is to be used with
all optional switches.
Check System Operation
Millivolt system and all individual components may be checked
with a millivolt meter 0-1000 MV range.
Remote Receiver
Use the following steps to place the remote receiver adjacent to
the gas valve.
Attention:
1. The remote receiver can not be placed behind the gas valve
and burner assembly.
2. When facing the appliance, the remote receiver must be placed
to the right of the gas valve and burner assembly.
Note: Do not let remote control receiver come in contact with
burner assembly.
On circulating vent-free firebox, install remote control receiver
behind bottom louver.
Refer to remote control installation and operating instructions for
more details on remote control.
750 Millivolt System
When you ignite the pilot, the thermocouple produces millivolts
(electrical current) which energizes the magnet in the gas valve.
After 30 seconds to 1 minute time period you can release the gas
control knob and the pilot will stay ON. Allow your pilot flame to
operate an additional one (1) to two (2) minutes before you turn the
gas control knob from the PILOT position to the ON position. This
time period allows the millivolts (electrical current) to buildup to a
sufficient level allowing the gas control to operate properly.
Millivolt Control
The valve regulator controls the burner pressure which should be
checked at the pressure test point. Turn captured screw counter
clockwise 2 or 3 turns and then place tubing to pressure gauge over
test point (Use test point “A” closest to control knob). After taking
pressure reading, be sure and turn captured screw clockwise firmly
to re-seal. Do not over torque. Check for gas leaks.
REMOTE/OFF/ON SWITCH
A DISTANCE/FERME/OUVERT
INTERRUPTEUR
IF ANY OF THE ORIGINAL WIRE
AS SUPPLIED WITH THIS UNIT
MUST BE REPLACED, IT MUST BE
REPLACED WITH NUMBER 18, 150°C
WIRE OR ITS EQUIVALENT.
SI UN DES FILS ELECTRIQUES
ORIGINAUX, VENANT DU FABRICANT
AVEC CETTE UNITE, DOIT ETRE
REMPLACE, VOUS DEVEZ LE
REMPLACER AVEC UN FIL
ELECTRIQUE DE NUMERO 18,
150 °C DU L'EQUIVALENT.
THERMOPILE
GAS VALVE
THERMOCOUPLE
(NATURAL)
OFF
ON
REMOTE
(OPTIONAL) REMOTE CONTROL RECEIVER
(FACULTATIVE) CONTROLE E DISTANCE
DU RECEPTEUR
(OPTIONAL) WALL SWITCH
INTERRUPTEUR MURAL
(FACULTATIVE)
(OPTIONAL) THERMOSTAT
(FACULATIVE) THERMOSTAT
WIRING DIAGRAM
GAS VALVE
VALVE DE GAZ
REMOTE/OFF/ON SWITCH
A DISTANCE/OUVERT/
FERME INTERRUPTEUR
REMOTE CONTROL RECEIVER/
THERMOSTAT/ CONTROLE E
DISTANCE DU RECEPTEUR
HN
VEILLEUSE
PILOT
THERMOCOUPLE
(LPG)
WIRING
Figure 17

Page 16 21565-3-0906
WARNING: If you do not follow these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
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 tech-
nician. 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.
1. Set REMOTE/OFF/ON switch to OFF.
2. Turn off all electric power to the appliance if service is to be
performed (if applicable).
3. Open bottom louver assembly (if applicable).
4. Push in gas control knob slightly and turn clockwise
to "OFF". Do not force.
5. Close bottom louver assembly (if applicable).
1. STOP! Read the safety information above on this label.
2. Set REMOTE/OFF/ON switch to "OFF".
3. Turn off all electric power to the
appliance (if applicable).
4. Open bottom louver assembly (if
applicable).
5. Push in gas control knob slightly
and turn clockwise to
"OFF".
NOTE: Knob cannot be turned from "PILOT"
to "OFF" unless knob is pushed in slightly.
Do not force.
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 do not smell gas, go to the next
step.
7. Find pilot - Follow metal tube from
gas control. The pilot is located next to the burner, near the
right side.
8. Turn gas control knob counterclockwise
to "PILOT".
9. Push in control knob all the way and hold in. Repeatedly push
the Piezo Ignitor Button until the pilot is lit. 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 IM-
MEDIATELY call a qualified 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. Turn gas control knob counterclockwise to "ON".
11. Close bottom louver assembly (if applicable).
12. Turn on all electric power to the appliance (if applicable).
13. Set REMOTE/OFF/ON switch to desired setting.
GAS CONTROL KNOB
SHOWN IN "OFF" POSITION.
THERMOCOUPLE
(NATURAL)
ELECTRODE
PILOT
THERMOPILE
REMOTE
OFF
ON
THERMOCOUPLE
(LPG)
GAS CONTROL KNOB
SHOWN IN "OFF" POSITION.
THERMOCOUPLE
(NATURAL)
ELECTRODE
PILOT
THERMOPILE
REMOTE
OFF
ON
THERMOCOUPLE
(LPG)
GAS CONTROL KNOB
SHOWN IN "OFF" POSITION.
THERMOCOUPLE
(NATURAL)
ELECTRODE
PILOT
THERMOPILE
REMOTE
OFF
ON
THERMOCOUPLE
(LPG)
VFDR(18,24,30)LB LIGHTING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
LIGHTING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE

Page 1721565-3-0906
Figure 18 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 19 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.
VFDR (Series) PILOT
Correct Pilot Flame Pattern
Figure 18
Incorrect Pilot Flame Pattern
Figure 19
If pilot flame pattern is incorrect, as shown in Figure 19
• See Troubleshooting, page 19.
Cleaning and Maintenance/Pilot
Oxygen Depletion Sensor Pilot (Figure 20)
When the pilot has a large yellow tip flame, clean the Oxygen
Depletion Sensor as follows:
1. 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.
2. 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.
Figure 20
PILOT FLAME CHARACTERISTICS

Page 18 21565-3-0906
Annual inspection and cleaning by your dealer or qualified
service technician is recommended to prevent malfunction
and/or sooting.
TURN OFF HEATER AND ALLOW TO COOL BEFORE
CLEANING.
Remove logs, handling carefully by holding gently at each end.
Gloves are recommended to prevent skin irritation from ceramic
fibers. If skin becomes irritated, wash gently with soap and water.
Refer to manual for correct log placement.
PERIODIC CLEANING – Refer to parts diagram for location
of items discussed below.
• Do not use cleaning fluid to clean logs or any part of heater.
• Logs - brush with soft bristle brush or vacuum with brush
attachment.
• Remove loose particles and dust from the burner, controls and
grate.
• Inspect and clean burner air intake hole. Remove lint or
particles with brush. Failure to keep air intake hole clean will
result in sooting and poor combustion.
ANNUAL CLEANING/INSPECTION – Refer to parts diagram
for location of items discussed below.
• Inspect and clean burner air intake hole. Remove lint or
particles with vacuum or brush. Failure to keep air intake hole
clean will result in sooting and poor combustion.
• Inspect and clean all burner ports.
• Inspect ODS pilot for operation and accumulation of lint at air
intake holes.
• Verify flame pattern and log placement for proper operation.
• Verify smooth and responsive ignition of main burner.
CLEANING AND SERVICING

Page 1921565-3-0906
If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfire when lit. If the gas quality or
pressure is low, contact your local gas supplier immediately.
1. When ignitor button is pressed, there is no spark at ODS/
pilot.
a. Ignitor electrode positioned wrong - Replace pilot.
b. Ignitor electrode is broken - Replace pilot.
c. Ignitor electrode not connected to ignitor cable - Reconnect
ignitor cable.
d. Ignitor cable pinched or wet. Keep ignitor cable dry - Free
ignitor cable if pinched by any metal or tubing.
e. Broken ignitor cable - Replace ignitor cable.
f. Bad piezo ignitor - Replace piezo ignitor.
2. Appliance produces unwanted odors.
a. Appliance burning vapors from paint, hair spray, glues, etc.
- Ventilate room. Stop using odor causing products while
heater is running.
b. Gas leak - Locate and correct all leaks.
3. Appliance shuts off during use. (Pilot and main burner are
off.)
a. Not enough fresh air is available for ODS/pilot to operate
- Open window and/or door for ventilation.
b. Low line pressure - Contact local gas company.
c. ODS/pilot is partially clogged - Clean ODS/pilot.
d. Defective thermocouple - Replace pilot.
4. Appliance shuts off during use. (Pilot stays on.)
a. Low line pressure - Check line pressure to the valve.
b. Defective thermopile - Check pilot flame, check wire
connections, output should be a minimum of 325 millivolts
across. TH/TP and TP terminals with REMOTE/OFF/ON
switch off.
5. Gas odor even when control knob is in OFF position.
a. Gas leak - Locate and correct all leaks.
b. Control valve defective - Replace control valve.
6. When ignitor button is pressed, there is spark at ODS/pilot,
but no ignition.
a. Gas supply turned off or manual shutoff valve closed - Turn
on gas supply or open manual shutoff valve.
b. Control knob not in PILOT position - Turn control knob
to PILOT position.
c. Control knob not pressed in while in PILOT position - Press
in control knob while in PILOT position.
d. Air in gas lines when installed - Continue holding down
control knob. Repeat igniting operation until air is
removed.
e. ODS/pilot is clogged - Replace ODS/pilot assembly or get
it serviced.
f. Gas regulator setting is not correct - Replace gas
regulator.
7. ODS/pilot lights but flame goes out when control knob is
released.
a. Control knob not fully pressed in - Press in control knob
fully.
b. Control knob not pressed in long enough - After ODS/pilot
lights, keep control knob pressed in 30 seconds.
c. Manual Shutoff valve not fully open - Fully open manual
shutoff valve.
d. Thermocouple connection loose at control valve - Hand
tighten until snug, then tighten 1/4 turn more.
e. Pilot flame not touching thermocouple, which allows
thermocouple to cool, causing pilot flame to go out. This
problem could be caused by either low gas pressure or
dirty or partially clogged ODS/pilot - Contact local gas
company.
f. Thermocouple damaged - Replace thermocouple.
g. Control valve damaged - Replace control valve.
8. Burner does not light after ODS/pilot is lit.
a. Burner orifice clogged - Clean burner or replace main burner
orifice.
b. Burner orifice diameter is too small - Replace burner
orifice.
c. Inlet gas pressure is too low - Contact qualified service
person.
9. If burning at main burner orifice occurs (a loud, roaring
blow torch noise).
a. You must turn off burner assembly and contact a qualified
service person.
b. Manifold pressure is too low - Contact local gas
company.
c. Burner orifice clogged - Clean burner or replace burner
orifice.
10. Logs appear to smoke after initial operation.
a. Vapors from paint or curing process of logs - Problem will
stop after a few hours of operation. Run the heater with the
damper open if you have one, or open a window for the
first few hours.
Log heater is intended to be smokeless. Turn OFF heater
and call qualified service person.
11. Heater produces a whistling noise when main burner is
lit.
a. Turning control knob to HIGH position when main burner
is cold - Turn control knob to LOW position and let warm
up for a minute.
b. Air in gas line - Operate burner until air is removed from
line. Have gas line checked by local gas company.
c. Dirty or partially clogged burner orifice - Clean burner or
replace burner orifice.
12. No gas to pilot.
a. LP-regulator shut down due to inlet pressure too high -
Verify LP tank regulator is installed and set at 11" to 13"
w.c. Replace regulator on heater.
TROUBLESHOOTING
SYMPTOMS, POSSIBLE CAUSES AND CORRECTIONS

Page 20 21565-3-0906
Attention: When ordering parts, it is very important that part number and description of part coincide.
USE ONLY MANUFACTURER'S REPLACEMENT PARTS. USE OF ANY OTHER PARTS COULD CAUSE INJURY OR DEATH.
PARTS LIST
INDEX
NO.
PART NUMBERS DESCRIPTION
VFDR18LB VFDR24LB VFDR30LB
1 21588 21588 21588 PILOT SHIELD (NAT ONLY)
2 R3623 R3623 R3623 PILOT ASSEMBLY (LPG)
2 R3624 R3624 R3624 PILOT ASSEMBLY (NAT)
3 21590 21590 21590 PILOT BRACKET (LPG)
3 21591 21591 21591 PILOT BRACKET (NAT)
4 R9022 R9023 R9024 BURNER, TUBE
5 21592 21592 21260 BRACKET, LOG LOCATOR
6 R7624 R7624 R7624 AIR SHUTTER
7 R7572 R7572 R7572 JAMB NUT
8 21669 21670 21671 BURNER BASE SUB-ASSEMBLY
9 21581 21581 21581 LEG, REAR (2 REQUIRED)
10 P285 P244 P296 ORIFICE (NAT)
10 P258 P210 P297 ORIFICE (LPG)
11 P212 P212 P212 ORIFICE HOLDER
12 21561 21561 21561 TUBING ASSEMBLY (VALVE TO PILOT - LPG)
12 21559 21559 21559 TUBING ASSEMBLY (REGULATOR TO PILOT - NAT)
13 R7063 R7063 R7063 REGULATOR, NAT PILOT
14 21560 21560 21560 TUBING ASSEMBLY (VALVE TO REGULATOR - NAT
ONLY)
15 21562 21563 21564 TUBING ASSEMBLY
16 R2423 R2423 R2423 CONNECTOR, MALE
17 21589 21589 21589 VALVE BRACKET (2 REQUIRED)
18 R3626 R3626 R3626 VALVE (NAT)
18 R3625 R3625 R3625 VALVE (LPG)
19 R9028 R9028 R9028 KNOB, EXTENSION ON/OFF
20 R9027 R9027 R9027 KNOB, EXTENSION HI/LO
21 21585 21586 21587 COVER PLATE, FRONT
22 21578 21579 21580 LEG, FRONT
23 R2313 R2313 R2313 IGNITOR, PIEZO
24 R3436 R3436 R3436 SWITCH, REMOTE/OFF/ON
25 R3435 R3435 R3435 WIRE ASSEMBLY (ON/OFF/REMOTE)
26 R5668 R5668 R5668 IGNITER WIRE
27 R7587 R7556 R7598 REAR LOG
28 R7586 R7555 R7597 MIDDLE LOG
29 R7585 R7553 R7553 FRONT LOG, LEFT
30 R7554 R7554 R7554 FRONT LOG, RIGHT
31 - - R7601 FRONT LOG, MIDDLE
32 R7588 R7557 R7599 FRONT TWIG
33 - - R7600 REAR TWIG
N/S 15998 15998 - ROCKWOOL (EMBER MATERIAL) (2REQUIRED)
N/S - - 15999 ROCKWOOL (EMBER MATERIAL)