Monessen Hearth DEB20, DEB24, DEB20NM, DEB24NM, DEB30NM Installation And Operating Instructions Manual
...
UNVENTED GAS LOG HEATER OR
VENTED DECORATIVE APPLIANCE
INSTALLATION AND OPERATING INSTRUCTIONS
MODELS: DEB20, DEB24, DEB30
Natural Gas or Propane/LPG
Control Type: Manual or Milli-Volt
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.
This is an unvented gas-fi red
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 8.
WARNINGS
If the information in this manual is not followed exactly ,
a fi re or explosion may result causing property damage,
personal injury or loss of life.
– Do not store or use gasoline or other fl ammable
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 supplier's instructions.
• If you cannot reach your gas supplier, call the fi re
department.
– Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
READ AND SAVE THESE INSTRUCTIONS
CONTENTS
Important Safety Information ..................................3
Getting Started ..........................................................5
Product Features and Specifi cations ....................6
Natural Gas .........................................................6
Propane/LP ..........................................................6
Ignition Controls ...................................................7
Pilot ......................................................................7
Thermal Generator ..............................................7
General Installation Information ............................7
Codes ..................................................................7
Adequate Combustion and Ventilation Air ...........7
Fireplace and Hearth Dimensions ........................10
Placement in a Fireplace with
a Restrictive Barrier ........................................11
Clearances and Height Requirements .................12
Floor Clearance .....................................................17
Fireplace Preparation ............................................18
Installing Vented Applications .............................19
Connecting the Gas ...............................................20
Checking Gas Pressure ........................................21
Manual Control ..................................................21
Milli-Volt/Thermostat Control .............................21
Electrical Wiring (Milli-volt) ...................................22
Connecting Remote Receiver ............................23
Installing Thermostat Sensor .............................23
Operation of Thermostat Sensor .......................25
Log Placement .......................................................26
Placing the Decorative Rock .............................27
Flame Appearance ..................................................27
Milli-Volt/Thermostat Control .............................27
Manual Control ..................................................27
Checking Burner Flames ......................................28
Operating Instructions ...........................................29
For Your Safety Read Before Lighting ...............29
Manual Control Lighting Instructions ................30
Milli-Volt/Thermostat Control
Lighting Instructions ...........................................31
Match Lighting Instructions ................................33
Cleaning Instructions .............................................33
Troubleshooting .....................................................34
Illustrated parts breakdown ..................................34
Replacement Parts .................................................36
Burner Assembly ...............................................36
Logs ...................................................................38
Warranty ....................................................Back page
2 44D0060
IMPORTANT SAFETY INFORMATION
INSTALLER
Please leave these instructions with the appliance.
IMPORTANT
Read these instructions carefully before installing or trying to operate this vent-free gas heater.
• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fi re,
burns, explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the fi replace. Avoid any drafts that alter burner
fl ame patterns.
WARNING
• Do not use a blower insert, heat exchanger insert or other accessory , not approved for
use with this heater where applicable.
1. Due to high temperatures, the appliance should
be located out of traffic and away from furniture
and draperies.
2. Children and adults should be alerted to the hazard
of high surface temperature and should stay away to
avoid burns or clothing ignition.
3. Young children should be carefully supervised when
they are in the same room with the appliance.
4. Do not place clothing or other flammable material
on or near the appliance.
5. Any safety screen or guard removed for servicing an
appliance, must be replaced prior to operating the
heater.
6. Installation and repair should be done by a qualified
service person.
7. To prevent malfunction and/or sooting, an unvented
gas heater should be cleaned before use and at least
annually by a professional service person. More frequent cleaning may be required due to excessive lint
from carpeting, bedding material, etc. It is imperative
that control compartments, burners and circulating air
passageways be kept clean.
8. CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the flu with
headaches, dizziness and/or nausea. If you have these
signs, obtain fresh air immediately. Have the heater
serviced as it may not be operating properly.
9. The installation must conform with local codes or, in
the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.l/NFPA54.
OWNER
Please retain these instructions for future reference
10. This unit complies with ANSI Z21.11.2-2001 Unvented
Heaters and also complies with ANSI Z21.60-2000 Decorative Vented Appliances for Solid Fuel Burning Fireplaces. State and local codes may only allow operation
of this appliance in a vented configuration. Check your
state or local codes. For vented operation, see “Vented
Instructions” in this manual.
11. Do not install the heaters in a bathroom or bedroom.
12. Correct installation of the ceramic fiber logs, proper
location of the heater, and annual cleaning are necessary
to avoid potential problems with sooting. Sooting,
resulting from improper installation or operation,
can settle on surfaces outside the fireplace. See log
placement instructions for proper installation.
13. Avoid any drafts that alter burner flame patterns. Do not
allow fans to blow directly into fireplace. Do not place
a blower inside burn area of firebox. Ceiling fans may
create drafts that alter burner flame patterns. Sooting
and improper burning will occur.
14. Caution: Candles, incense, oil lamps, etc. produce
combustion byproducts including soot. Vent-free appliances will not filter or clean soot produced by these types
of products. In addition, the smoke and/or aromatics
(scents) may be reburnt in the vent-free appliance which
can produce odors. It is recommended to minimize the
use of candles, incense, etc. while the vent-free appliance
is in operation.
15. 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. See page 8.
Continued on page 4
.
44D0060 3
IMPORTANT SAFETY INFORMATION
Continued from page 3
16. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and liquids.
17. Unvented gas heaters are a supplemental zone heater.
They are not intended to be the primary heating appliance.
24. 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.
25. Never burn solid fuels in a fireplace where a unvented
room heater is installed.
18. Unvented gas heaters emit moisture into the living area.
In most homes of average construction, this does not pose
a problem. In houses of extremely tight construction,
additional mechanical ventilation is recommended.
19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, films or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
as they are burned off during the initial operation
of the appliance; possibly causing headaches or eye
or lung irritation. This is a normal and temporary
occurrence.
The initial break-in operation should last two to three
hours with the burner at the highest setting. Provide
maximum ventilation by opening windows or doors to
allow odors to dissipate. Any odors remaining after this
initial break-in period will be slight and will disappear
with continued use.
20. Input ratings are shown in BTU per hour and are for
elevations up to 2,000 feet. For elevations above 2,000
feet, input ratings should be reduced 4 percent for
each 1,000 feet above sea level. Refer to the National
Fuel Gas Code.
26. Always have a fireplace screen in place when the appliance is in operation and, unless other provisions for
combustion air are provided, the screen must have an
opening(s) for induction of combustion air.
21. The appliance and its appliance main gas 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).
22. The appliance must be isolated from the gas supply
piping system by closing its equipment shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).
23. Do not use this room heater if any part has been under
water. Immediately call a qualified service technician
to inspect the room heater and to replace any part of the
control system and any gas control which has been under
water.
4 44D0060
GETTING STARTED
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:
• Unvented gas log grate/burner assembly • Two (2) Plastic bags containing crushed volcanic rock
• Installation/operating instructions • Two (2) anchoring screws
• Ceramic Fiber logs
The milli-volt controlled version of this heater is the only style designed to be operated with optional devices for
ON/OFF functions. The following options may be used with the milli-volt controlled heater. These options are not
packaged with the log set.
• Hand held Remote with receiver • Wall thermostat with 15' wire
• Wall switch with 15' wire • Hand held Thermostat Remote with receiver
• Thermostat sensor
The following options may be used with Hi/Lo control heater.
• Hand held Remote with receiver
• Handle the gas log burner assembly by the grate only. Do not pick the unit up by the
burners.
• Gloves are recommended when handling ceramic fi ber logs to prevent skin irritation
from loose fi bers. Logs are fragile — handle with care.
CAUTION
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.
WHAT YOU WILL NEED FOR INSTALLATION:
You should have the following items available before proceeding with installation:
• External regulator (for propane/LPG and 1/2 lb. natural gas systems only)
• Piping which complies with local codes • Sediment trap (recommended)
• Screwdriver • Tee joint.
• Pipe sealant approved for use with propane/LPG (Resistant to sulfur compounds)
• Drill with 5/32 bit • Pipe wrench or appropriate size crescent wrench set
• Manual shutoff valve
44D0060 5
PRODUCT FEATURES AND SPECIFICATIONS
NATURAL GAS
NOTE: An external regulator is required to reduce supply pressure to a maximum of 10 1/2" W.C. on
natural gas systems operating at higher pressure.
Manual Pressure Milli-Volt Pressure
Regulator Pressure: Setting: 3.0" w.c. Regulator Pressure Setting: 3.5" w.c.
Pilot Regulator: 3.5" w.c.
Gas Inlet Pressure: Max. 101/2" w.c. Gas Inlet Pressure: 101/2" w.c.
Min. 5" w.c. Min. 5" w.c.
Gas Rate
Model Number Control Max BTU/Hr Min BTU/Hr
DEB20NM MANUAL 28,000 18,000
DEB24NM MANUAL 38,000 20,000
DEB30NM MANUAL 38,000 20,000
DEB20NV MILLI-VOLT 28,000 18,000
DEB24NV MILLI-VOLT 38,000 25,000
DEB30NV MILLI-VOLT 38,000 25,000
PROPANE/LPG
Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c.
Manual Pressure Milli-Volt Pressure
Regulator Pressure Setting: 10" w.c. Regulator Pressure Setting: 10" w.c.
Gas Inlet Pressure: Max. 13" w.c. Gas Inlet Pressure: Max. 13" w.c.
Min. 11" w.c. Min. 11" w.c.
Gas Rate
Model Number Control Max BTU/Hr Min BTU/Hr
DEB20PM MANUAL 28,000 18,000
DEB24PM MANUAL 38,000 20,000
DEB30PM MANUAL 38,000 20,000
DEB20PV MILLI-VOLT 28,000 20,000
DEB24 PV MILLI-VOL T 38,000 30,000
DEB30PV MILLI-VOLT 38,000 30,000
6 44D0060
PRODUCT FEATURES AND SPECIFICATIONS
IGNITION CONTROLS
Piezo ignitor allows ignition of the pilot without the use of matches or batteries.
Manual control has three (3) positions:
OFF - All gas to the gas logs is shut off at the valve.
IGN - Valve position to light/maintain a standing pilot.
HI/LOW - Variable position corresponding to desired flame height.
Milli-Volt control has four (4) positions:
OFF - All gas to the gas logs is shut off at the valve.
IGN - Valve position to light/maintain a standing pilot.
ON - Valve position to turn ON/OFF log set with remote switch/thermostat.
LOW/HI - Variable position to control flame height (heat output).
PILOT/ODS
The gas log heater is fitted with a specially designed safety pilot (ODS assembly) which senses the amount of oxygen available in the room and shuts the gas log heater off if the oxygen level begins to drop below a satisfactory level. The pilot can
only be relit when adequate fresh air is available.
THERMAL GENERATOR
The milli-volt/t-stat gas log pilot is fitted with a milli-volt (thermopile) generator to provide power for remote activation.
44D0060 7
GENERAL INSTALLATION INFORMATION
CODES
Adhere to all local 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, Inc.
1430 Broadway
New York, NY 10018
or
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
ADEQUATE COMBUSTION AND 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/NFPA 54), defines a confined space as a space whose volume is less than 50
cubic feet per 1,000 BTU per hour (4.8 m
unconfined space is defined 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 IS DEFINED AS CONSTRUCTION WHERE…
a) walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of 1 perm
(6 x 10
b) weather striping 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.
11
kg per pa-sec-m2) or less with openings gasketed or sealed;
3
per kw) of the aggregate input rating of all appliances installed in that space. An
8 44D0060
GENERAL INSTALLATION INFORMATION
Counter
Fireplace
H
W
Figure 1 - Example of a Large Room with 1/2 Wall Divider
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
Consider two connecting rooms with an open area between, with the following dimensions:
1
1 = 15
L
/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.
BTU/Hr = (151/2 + 12) x (12) x (8)
x 1000 = 52800 BTU/Hr
50
If there were a door between the two rooms the calculation would be based only on the room with the heater.
BTU/Hr = (151/2) x (12) x (8)
x 1000 = 29760 BTU/Hr
50
If the area in which the heater may be operated is smaller than that defi ned as an
unconfi ned 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/NFPA 54, Section 5.3 or applicable local codes.
WARNING
44D0060 9
FIREPLACE AND HEARTH DIMENSIONS
This appliance is for installation only in a solid-fuel burning masonry or UL127 factorybuilt fi replace or in a listed ventless fi rebox enclosure. It has been design certifi ed for
these installations.
Exception: DO NOT install this appliance in a factory-built fi replace that includes
instructions stating it has not been tested or should not be used with unvented gas
WARNING
logs.
Use manufacturer's installation and clearance requirements as defi ned in their manual.
The DEB Series unvented room heater is approved for installation into the following unvented fireplaces:
GCUF Series Fireboxes 32, 36, or 42
The DEB Series unvented room heater may also be installed into a Ventless Firebox Enclosure for Gas Fired Decorative Type
Unvented Room Heaters per IAS Requirement No. 2-97 ANSI Z21.91-2001 (typically referred to as a "Universal Firebox"),
as long as firebox hearth dimensions meet the minimum hearth dimensions shown below.
A
Model A B C D
DEB20 18" 13
DEB24 221/ 4" 131/ 4" 281/ 2" 17"
DEB30 251/ 2" 131/ 4" 321/ 2" 17"
1
/ 4" 27" 17"
Figure 2 - Hearth Minimum Dimension
D
C
B
10 44D0060
PLACEMENT IN A FIREPLACE WITH A RESTRICTIVE BARRIER
IMPORTANT INFORMATION FOR THE INSTALLATION OF THIS GAS LOG SET
The following are guidelines for placing a gas log set in a fireplace that has a restrictive barrier along the bottom front opening of the fireplace. Some examples of barriers are glass/screen door frames and sunken/recessed fireplaces.
Height of Restriction (X) Minimum Depth of Fireplace/Firebox
No restriction 131/ 4"
1
0 to 1
From 1
Greater than 3" ANY BARRIER GREATER THAN THREE INCHES (3")
Glass door frames
with adjustable
louvers should have
the louvers fully
open while the unit is
in operation.
/2" 16"
1
/2" to 3" 16"
PLACED IN FRONT OF THE GAS LOG SET IS NOT
RECOMMENDED BY THE MANUFACTURER.
The log set should be
placed against or as near
as possible to the rear wall
of the fi replace/fi rebox.
Height of restrictive barrier
X
caused by glass door frames,
recessed fi replaces, etc. from
the base or bottom surface of the
unit. (Refer to Table).
Depth of fi replace/fi rebox.
(Refer toTable).
Figure 3 - Reference Drawing of a Natural Flame Log Set in an Enclosure
Barriers such as the bottom of a glass door frame placed in front of a gas log set can
change the air fl ow characteristics of the fi replace which in turn can cause the unit to
overheat and malfunction.
WARNING
NOTE: Non combustible material such as refractory brick may be used to line the fl oor of the fi replace
in order to raise the height of the gas log set in relation to a restrictive barrier. If the unit is raised, the
minimum height dimension listed in the homeowner’s manual must not be exceeded.
NOTE: If the log set is equipped with a remote receiver, a restrictive barrier may reduce the battery life
by increasing the ambient temperature inside the fi replace. Placement of the receiver outside of the
fi replace will extend the battery life.
44D0060 11
CLEARANCES AND HEIGHT REQUIREMENTS
The dimensions shown in Figures 4 through 12 and defi ned in the fi replace manufacturer's
instructions are minimum clearances to maintain when installing this heater. Left and
right clearances are determined when facing the front of the heater.
When heater is installed into a ventless fi rebox, minimum clearances, as specifi ed by
the ventless fi rebox manufacturer, must be met.
WARNING
Follow these instructions carefully to ensure safe installation. Failure to follow
instructions exactly can create a fi re hazard.
Sidewall and ceiling clearances: The sides of the fireplace opening must be at least 16" from any combustible wall.
The ceiling must be at least 42" from the top of the fireplace opening.
42"
16"
Figure 4 - Sidewall and Ceiling Clearances
12 44D0060
e
CLEARANCES and HEIGHT REQUIREMENTS
Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection:
To install the gas logs into a fireplace with no wooden mantel, shelf or other combustible projection above the fireplace
opening, measure the heat resistant material height, per Figure 5, then see TABLE A.
Heat resistant materials such as slate and marble must be at least 1/2” thick. Sheet metal should not be installed
onto combustible material.
IMPORTANT: If you cannot meet these minimum clearances you must operate the heater with chimney flue damper open.
Refer to “Installing Vented Applications” found on page 18.
Heat
Resistant
Material
Measur
this
distance
Heater in
Fireplace or
Firebox
Figure 5 - Measuring Heat Resistant Material
HEAT RESISTANT REQUIREMENTS FOR SAFE INSTALLATION
MATERIAL
MEASUREMENT DEB20 DEB24 and DEB30
12" or more Hood not required. Hood not required.
8" to less than 12" Hood not required. Extend heat resistent material to 12"
or install hood. See Figure 5.
Less than 8" Extend heat resistant Extend heat resistant material to at
material to at least 8" least 8" and install hood. See Figure
and install hood. 5. OR, extend heat resistant mater-
See Figure 5. ial to a height of at least 12".
TABLE A - Heat Resistant Material Requirements with no Mantel or Combustible Projection
44D0060 13
n
CLEARANCES and HEIGHT REQUIREMENTS
Heat resistant material (minimum requirements) with wooden mantel or other combustible projection:
To install the heater with a wooden mantel, shelf or other combustible projection above, first measure the heat resistant
material shown in Figure 6, then refer to Table B.
8" or More of
Heat Resista
Hood
Heater in
Fireplace or
Firebox
Material
Figure 6 - Measuring Heat Resistant Material for Mantel
HEAT RESISTANT REQUIREMENTS FOR SAFE INSTALLATION WITH WOODEN MANTEL,
MATERIAL SHELF OR OTHER COMBUSTIBLE PROJECTION
MEASUREMENT
DEB20 DEB24 and DEB30
12" or more Hood not required. Observe profi les (side Hood not required. Observe profi le (side
elevations) shown in Figure 7, page 15. elevations) shown in Figure 9, page 16.
8" to less than 12" Install hood and observe profi les shown Install hood and observe profi les shown
in Figure 8, page 15; OR extend heat in Figure 7, page 15; OR extend heat
resistant material to at least 12" and observe resistant material to at least 12" and observe
profi les shown in Figure 7, page 15. profi les shown in Figure 9, page 16.
Less than 8" Extend heat resistant material to at least Extend heat resistant material to at least
8", install hood and observe profi les shown 8", install hood and observe profi les shown
in Figure 8, page 15; OR extend heat in Figure 7, page 15; OR extend heat
resistant material to at least 12" and observe resistant material to at least 12" and observe
profi les shown in Figure 8, page 15. profi les shown in Figure 9, page 16.
TABLE B - Heat Resistant Material Heights and Mantel Location
14 44D0060
Heat
Resistant
Material
10"
8"
6"
1
/2"
2
Heater in
Fireplace or
Firebox
CLEARANCES AND HEIGHT REQUIRMENTS
8" 14" 201/2"245/8"28"
Example: A mantel may project from the wall a maximum of 2
minimum of 14" above the opening, and a maximum of 6" at a minimum of 201/2" above the opening.
1
/2" at a
Heat
Resistant
Material
Figure 7 - Minimum Mantel Clearance with No Hood - DEB20
12"
10"
8"
6"
1
/2"
2
8" 141/2"185/8"221/2" 26"
Hood
Example: A mantel may project from the wall a maximum of 2
Heater in
Fireplace or
Firebox
minimum of 8" above the opening, and a maximum of 6" at a minimum of 141/2" above the opening.
1
/2" at a
Figure 8 - Minimum Mantel Clearance with Hood - All Models
44D0060 15
CLEARANCES AND HEIGHT REQUIRMENTS
10" or less
Heat
Resistant
Material
12" min. 28"
Heater in
Fireplace or
Firebox
Example: The bottom of the mantel may project from the wall a
maximum of 10" at a minimum of 28" above the
Figure 9 - Minimum Mantel Clearance with No Hood — DEB24 and DEB30
7"
6"
Figure 10 is an example of an unsafe mantel installation.
This mantel projects 4" at 8" above the opening, exceeding
the maximum acceptable distance of 21/2" The mantel also
projects 7" at 141/2" above the opening, exceeding the
maximum acceptable distance of 6".
If your mantel profile is unsafe, you may either:
• Raise the mantel to an acceptable height
OR
4"
21/2"
8"
14
1
/2"
• Remove the mantel
Figure 10 - Minimum Mantel Clearance with No Hood - DEB24 and DEB30
(Example of Unsafe Installation)
16 44D0060
FLOOR CLEARANCE
The gas log heater must be installed at least 5" above any combustible flooring material, such as carpeting or tile,
which is closer than 14" to the base of the fireplace. The minimum distance must be maintained from the top surface
of carpeting, tile, etc. See Figure 11.
OR,
The gas log heater may be installed nearer to the floor if a minimum of 14" of noncombustible material such as slate or
marble is installed between the base of the fireplace and the combustible flooring. See Figure 12.
Heater in
Fireplace or
Firebox
Figure 11 - Minimum Clearance above Combustible Flooring
This Distance
May Now Be
Less than 5"
Combustible
Material
5" Minimum
Heater in
Fireplace or
Firebox
Combustible
Material
14" Minimum
Figure 12 - Minimum Clearance above Combustible Flooring with
Noncombustible Material Installed at Base of Fireplace
44D0060 17
FIREPLACE PREPARATION
BEFORE FULLY INSTALLING THE UNIT:
• 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
fi replace, The chimney fl ue and fi rebox
must be cleaned of soot, creosote,
ashes and loose paint by a qualifi ed
chimney cleaner.
WARNING
INSTALLING VENTED APPLICATIONS
Manual and milli-volt controlled gas logs may be installed as a vented decorative log set in compliance with ANSI Z21.60
and National Fuel Gas Code, Section 6.6. Since, the gas logs are operated with the damper open, non-combustible mate-
rial and minimum mantel requirements do not apply.
This appliance is for installation only in a solid fuel burning fi replace (masonry fi replace
or manufactured fi replace) with a working fl ue and constructed of noncombustible
material.
Exception: DO NOT install this appliance in a factory-built fi replace that includes
instructions stating that it has not been tested or should not be used with unvented
WARNING
gas logs. This log set may be installed as a vented log set.
BEFORE INSTALLING THE APPLIANCE:
• 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.
Install and operate the appliance as directed in this manual.
DAMPER STOP INSTALLATION:
A damper stop must be provided with the unit. Contact
your dealer to obtain one. The damper stop must be
installed as shown in Figure 13 to prevent full closure
of the fireplace damper blade and provide a minimum
29 square inch flue opening.
Damper Stop
Damper
18 44D0060
Figure 13 - Damper Stop Installation.
(See WARNING at top of next page.)
The fi replace and gas logs function as a system. If the fi replace is spilling into the room
(check with a match or a smoke stick), reposition the damper clamp until a positive
draft is obtained by opening the damper. If negative pressure in home prevents having
a positive draft, contact your dealer for assistance.
WARNING
PLACING AND SECURING APPLIANCE
Y ou must secure the gas log heater to the fi replace fl oor. 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 fi replace. You must
raise the fi replace fl oor to allow access to gas log controls. This will insure adequate air
fl ow and guard against sooting. Raise the fi replace fl oor using noncombustible materials,
as described in “Placement in a Fireplace with Restrictive Barrier” on page 11.
WARNING
INSTALLING VENTED APPLICATIONS
ASSEMBLY PROCEDURE:
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. Anchor holes are located on the right and left sides of the unit. After centering the grate correctly, mark the hole positions on the fireplace/firebox floor. Drill two (2)
3. Anchor the grate to the fireplace/firebox floor using the screws provided. See Figure 14.
Proper installation of the grate is essential to prevent any movement of the gas logs and controls during operation.
Screw
Anchor
Hole
5
/32" diameter holes approximately 11/2" deep.
Screw
Figure 14 - Securing Heater to Floor of Fireplace/Firebox
44D0060 19
Anchor
Hole
CONNECTING THE GAS
NOTICE: A qualifi ed gas appliance installer must connect the heater to the gas supply. Consult all local
codes.
Use new black iron or steel pipe. Internally tinned copper or copper tubing can be used
per National Fuel Code, section 2.6.3, providing gas meets hydrogen sulfi de limits, and
where permitted by local codes. Gas piping system must be sized to provide minimum
inlet pressure (Listed on Data Plate) at the maximum fl ow rate (BTU/Hr). Undue pressure
loss will occur if the pipe is too small.
A manual shutoff valve must be installed upstream of the appliance. Union tee and
CAUTION
plugged
See Figure 15.
1
/8" NPT pressure tapping point should be installed upstream of the appliance.
To Heater
Valve
Stainless
Flexible Tube
Manual Shutoff
IMPORTANT: Hold heater valve firmly with a wrench to prevent movement when connecting to inlet pipe.
Pipe Coupling
Pipe
Valve
Figure 15 - Gas Connection
Locations that the Pressure
Tapping Point May Be Installed
Gas Supply
Inlet
CHECK GAS TYPE: The gas supply must be the same as stated on the heater’s rating
plate. If the gas supply is different, DO NOT INST ALL THE HEA TER. Contact your dealer
for the correct model.
CAUTION
Always use an external regulator for all propane/LPG heaters and high pressure one to two-pound systems
only, to reduce the supply tank pressure to a maximum of 13" w.c. This is in addition to the internal regulator in
the heater valve.
20 44D0060
CHECKING GAS PRESSURE
The heater gas inlet connection is a 3/8" NPT at the valve. On all
Connecting directly to an
unregulated propane/LPG tank
can cause an explosion.
WARNING
Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after com-
pleting connection. DO NOT USE AN OPEN FLAME.
Check the gas pressure with the appliance burning and the control set to HIGH.
Never operate the gas log heater without the #2 log in its proper position. It
can cause damage to the control valve and wiring if fl ame is turned on with-
out the #2 log in place. See installing logs on page 26.
WARNING
control type units, the inlet connection is on the right side of unit.
To connect from the opposite side, route the pipe around the back
portion of the unit.
When tightening up the joint to the valve, hold the valve securely
to prevent movement.
MANUAL CONTROL (Figure 16)
The pressure regulator is preset and locked to discourage tampering. If the pressure is not as specified,
replace the regulator with the correct part from the parts
list in this manual.
1
Remove
body. Install fitting and tubing to pressure gauge. After
taking pressure reading, reinstall test plug. Check for
gas leaks.
MILLI-VOLT CONTROL (Figure 17)
The valve regulator controls the burner pressure which
should be checked at the pressure test point.
Turn captured screw counter clockwise two or thre turns
and then place tubing to pressure gauge over test point
(Use test point “OUT” 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.
/8" NPT plug, located on side of regulator
Figure 16 - Pressure Test Point Location
Manual Control
Test Port “OUT”
44D0060 21
Figure 17 - Pressure Test Point Location
Milli-Volt Control
ELECTRICAL WIRING (MILLI-VOLT)
The milli-volt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPERATE.
Label all wires prior to disconnection
when servicing controls. Wiring
errors can cause improper and
dangerous operation. Verify proper
operation after servicing.
CAUTION
ODS
Pilot
On/Off
Switch
ODS
Wall
Switch
On/Off
Switch
TH = 3
TP = 1
TP/TH = 2
Pilot
Milli-volt
Valve
Spade
Terminal
CONNECTING OPTIONAL WALL SWITCH OR THERMOSTAT
1. Use 18 awg, two-wire cable, 15 feet maximum length.
2. At one end of the cable, connect both wires to the wall switch or thermostat. At the other end, connect one wire to
TP/TH and one wire to TH, or connect the wall switch/thermostat to the two male (0.25") terminals on the left side of
the unit. The color of the wires does not matter.
22 44D0060
Switch
Figure 18 - Wiring Diagram
Optional Wall
Switch, Remote
Receiver or
Optional T-Stat
CONNECTING REMOTE RECEIVER
1. Connect the connectors to the two .25" male connectors located on the right side when facing the
unit (Figure 19). Do not let the wire touch the grate
or burners.
NOTE: Heat reduces battery life. You can
protect the receiver and extend battery life
by mounting the receiver in a wall or other
location outside the fi replace.
ELECTRICAL WIRING (MILLI-VOLT)
Remote
Wire
Connectors
Remote
Receiver
Figure 19 - Installing Remote Receiver
INSTALLING T-STAT SENSOR (OPTION SOLD SEPARATELY)
1. Remove metal bracket and label from box.
2. Peel away the paper backing on the label. Line up holes in label with holes on the bracket. Right side of label should
flush with right side of bracket. See Figure 20. Press label firmly and smoothly to bracket.
3. Using Phillips screwdriver, install t-stat sensor to bracket with two screws provided. See Figure 21. Make sure the
thermo bulb wire is at the bottom of t-stat sensor.
4. Plug in wiring harnesses to back of t-stat sensor. See Figure 21.
Wiring
Harnesses
T-Stat
OS
IN
G
T
AT
H
I
GH
Sensor
THERMOSTAT
SETTING
HIGH
Bracket
THERM
SETT
Line Up
Holes
2
6D3
3
1
7
LOW
Flush edge of label to
right side of bracket
Figure 20 - Applying Label to Bracket
44D0060 23
Screws
2
6
D33
1
7
LOW
Thermo Bulb
Figure 21 - Installing T-Stat Sensors
and Wiring Harnesses
ELECTRICAL WIRING (MILLI-VOLT)
5. Route wiring harnesses through large hole on side of unit. Mount bracket to side of unit with screw provided. See Figure
22.
6. Attach wiring harness to either TP/TH and TH on control valve or to existing wiring harness with two (2) 0.250" male
spade terminals for remote or t-stat option. See Figures 22 and 23.
7. Install knob to shaft of t-stat sensor. See Figure 22.
8. Place thermo bulb in front of the firebox for incoming air.
Wiring Harnesses
Screw
THERMOSTAT
S
E
TTI
NG
HI
GH
T-Stat
Sensor and
Bracket
Knob
2
6D
33
1
7
L
O
W
Thermo Bulb
Figure 22 - Installing T-Stat Sensor to DEB Base
with Screw Provided
TP/TH
Wiring Harnesses
TH
Figure 23 - Attaching Wiring Harnesses to Control Valve
24 44D0060
ELECTRICAL WIRING (MILLI-VOLT)
OPERATION OF THERMOSTAT SENSOR
1. Follow millivolt lighting instructions on lighting plate attached to unit or in homeowner’s manual.
2. With control knob in the “ON” position make sure the ON/OFF switch is in the “OFF” position. See Figure 24.
3. The unit is now being controlled by the thermostat sensor. The sensor will now cycle the burners on and off. You can adjust
how often the unit cycles by turning the control knob on the sensor.
ON/OFF
Switch
T
H
E
RMOSTA
SE
TTING
T
HIGH
2
6D3
3
1
Control
Knob
7
LOW
T-Stat
Sensor
Figure 24 - Control Knob in “ON” Position and ON/OFF Switch in “OFF” Position
CHECKING SYSTEM OPERATION
The milli-volt system and individual components may be checked with a milli-volt
CONNECT
CHECK TO METER THERMOSTAT METER
TEST TEST LEADS TO CONTACTS READING
TERMINALS SHOULD BE
meter having a 0-1000 mV range. Conduct
each check shown in chart below by connection meter test leads to terminals as
indicated.
A COMPLETE TP/TH and TH CLOSED MINIMUM
SYSTEM 175
B THERMOPILE TP and TP/TH OPEN MINIMUM
OUTPUT 500
A. COMPLETE MILLI-VOLT SYSTEM CHECK
(“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main burner should turn ON)
a. If the reading is more than 175 milli-volts and the automatic valve still does not come on, replace the control.
b. If the closed circuit reading (“A” reading) is less than 175 milli-volts, determine cause for low reading, proceed to
Section B below.
B. Thermopile Output Reading Check
(“B” Reading - Thermostat contacts OPEN - Main burner OFF)
1. Check gas pressure to the unit. If gas pressure is within minimum and maximum on data plate, then check pilot
voltage, 500 milli-volts minimum. If the minimum milli-volt reading is not obtainable, replace pilot.
44D0060 25
LOG PLACEMENT
Before you begin — This unit is supplied with four or 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 the logs, wash your hands gently
with soap and water to remove any traces of fibers.
The positioning of the logs are critical to the safe and clean operation of this heater.
Sooting and other problems may result if the logs are not properly and fi rmly positioned
in the appliance. Never add additional logs or embellishments such as pine cones,
vermiculite or rock wool to the heater. Only use the logs supplied with the unit.
Failure to position the parts in accordance with diagrams below or to use only
parts specifically approved for this heater may result in property damage or
WARNING
personal injury.
INSTALLING LOGS ON GRATE (See Figures 25 and 26 )
NOTE: Model DEB18 has 4 logs and models DEB24 and DEB30 have 5 logs.
1. Install back log (#1) on two pins located near the back of base. Check log position and stability.
2. Install right center log (#2) on pins located near right front of base and center of base.
NOTE: The #2 log is a heat shield for
the control valve. It is critical that this
log is sitting in its pin placement and
completely down with the front noise
of the embers placed below the front
burner. If the #2 log is not placed
properly it could cause damage to the
control valve and wiring.
3. Install left center log (#3) on pin
located near left front of base and on
top of right center log (#2).
4. Install middle front log (#4) in front
of center log. Make sure bottom
of log is resting on the center of
grate. Do not let log #4 contact the
front burner.
5. DEB 24 and DEB 30 only: Rest
right end of left front log (#5) on log
#3 and the top of left front log on log
#1.
6. Place back end of top center
log (#5) on recessed area of
back log (#1). Cross log #6
over log #2 and rest right extension
on grate. Log #6 should fit on pin on
center log #3.
Left Front Pin
Log #6
Log
#4
Log
#3
Back
Pins
Right Front and
Center Pins
Figure 25 - Installing Logs
to Grate (Model DEB20)
Log
#1
Log
#2
Left Front Pin
Log #6
Log #4
Log #5
(24 & 30
only)
Back
Pins
Log #3
Right Front and
Center Pins
Figure 26 - Installing Logs
to Grate
(Models DEB24 and DEB30)
Log
#1
Log
#2
26 44D0060
FLAME APPEARANCE
PLACING THE DECORATIVE ROCK
DO NOT sprinkle volcanic rock on the logs, around the pilot, or on or near burners. This
may cause sooting. Place volcanic rock only on the fl oor of the fi replace.
During initial operation of the new heater, burning logs will give off a paper burning
smell and orange fl ames will be present. Simply open the windows for a few hours to
CAUTION
vent the odor.
Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed.
In addition, periodically check the flames visually during operation.
CHECKING THE PILOT FLAME
The pilot fl ame must always be present when the heater is in operation. It should just touch the top of the ther-
mocouple tip for natural. See Figures 27 and 29 for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably. See Figures 28 and 30
for incorrect shape of pilot flame.
MILLI-VOLT CONTROL
Thermocouple
for Natural
Thermocouple
for LP
Figure 27 - Correct Appearance of Pilot Flame
MANUAL CONTROL
Thermocouple
for Natural
Thermocouple
for Natural
Thermocouple
for LP
Figure 28 - Incorrect Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP
Figure 29 - Correct Appearance of Pilot Flame
44D0060 27
Thermocouple
for LP
Figure 30 - Incorrect Appearance of Pilot Flame
CHECKING THE BURNER FLAME
In normal operation at full rate after 15 minutes, the following fl ame appearances should be observed:
Glowing Embers
Figure 31 - Correct Appearance of Rear Flames
The left and right rear flames should be yellow and extend 1"-2" above the mid log top surfaces. The yellow flames should
not contact the logs. There should be glowing embers on the middle log. Note: The front fl ames and embers will be
an opaque orange color during the burn off time.
OPERATING INSTRUCTIONS
Avoid any drafts that alter burner fl ame patterns. Do not allow fans to blow directly into the fireplace. Do not place
a blower inside the burn 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 two to three hours with the burner at the highest setting. Provide maximum
ventilation by opening windows or doors to allow odors to dissipate. Any odors remaining after this initial break-in 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. See Figure 3, page 11.
28 44D0060
OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
If you do not follow these instruction
exactly, a fi re or explosion may result
causing property damage, personal
injury or loss of life.
WARNING
A. This appliance is equipped with a piezo ignition device which lights the pilot. If piezo is not working properly
see “Match Lighting Instructions,” page 33.
B. BEFORE OPERATING 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 attempt to light any appliance.
• Do not touch any electric 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 of it 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 that has been under
water.
Piezo
Ignitor
Figure 32 - Location of Piezo Ignitor, Control Knobs and Switch
44D0060 29
Switch
Control Knobs
on Milli-volt and Manual Units
OPERATING INSTRUCTIONS
MANUAL CONTROL LIGHTING INSTRUCTIONS
1. STOP! Read the safety information.
2. Make sure the manual shutoff valve is fully open.
3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot.
4. Refer to Figure 32, page 29 for the location of the piezo ignitor and control knob. Push in gas control
knob slightly and turn control knob clockwise
NOTE: Knob cannot be turned to OFF unless knob is pushed in slightly. Do not force.
5. Wait 5 minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas STOP!
Follow the instructions under “What To Do if You Smell Gas,” page 29. If you do not smell gas, go to
the next step.
6. From OFF position, push in gas control knob slightly and turn counterclockwise
position. See Figure 33. Push in and hold control knob for 5 seconds.
NOTE: If you are running the heater for the first time, it will be necessary to press in the control knob
for 30 seconds to allow air to bleed out of the gas piping.
7. With the control knob pushed in, push and release the piezo ignitor button to light the ODS pilot. The
pilot is located on the left side of the heater, behind the middle log and on the back of the rear burner. If
piezo ignitor does not light the pilot, refer to “Match Lighting Instructions,” page 33.
8. Hold the control knob in for an additional 10 seconds to prevent the ODS pilot from shutting off the
gas while the thermocouple is warming up.
9. Release the control knob.
• If the knob does not pop out when released, stop and immediately call your service technician
or gas supplier.
• If the ODS pilot will not stay lit after several tries, push and turn the gas control knob clockwise
to OFF and wait 15 seconds. Repeat steps 6 through 9.
10. Push in control knob and turn counterclockwise
control knob will pop out when positioned correctly. The knob can now be positioned at any position
between HIGH and LOW. Refer to Figures 34 and 35.
to the OFF position.
to the IGN
to the HIGH setting. At this location the
Rotate
Rotate
Push
Figure 33 - IGN Position
Rotate
Push
Figure 34 - HIGH Position Figure 35 - LOW Position
Wait 30 seconds before readjusting the
heater when the control knob has been
turned down to a lower setting.
WARNING
WARNING
TO TURN OFF GAS TO HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2. If applicable: Turn off all electric power to the heater.
30 44D0060
OPERATING INSTRUCTIONS
MILLI-VOLT CONTROL
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information label.
2. Make sure the manual shutoff valve is fully open.
3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo
ignitor does not light the pilot, refer to instructions for “Match Lighting Instructions”, page 33.
4. Turn gas control knob clockwise to the OFF position, set the thermostat to the lowest setting
and turn ON/OFF switch to OFF position.
5. Wait (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP!
Follow the instructions under “What To Do If You Smell Gas,” page 29.
6. From OFF position, turn the gas control knob counterclockwise
control knob for 5 seconds. NOTE: If you are running the heater for the fi rst time, it may be
necessary to press in the control knob for 30 seconds or longer to allow air to bleed out
of the gas piping.
7. With the control knob pushed in, push in and release the piezo ignitor button to light the pilot.
8. Continue pushing the control knob in for a further 10 seconds to prevent the flame detector from shutting
off the gas while the probe is warming up. Release the control knob.
9. Turn gas control knob counterclockwise
10. After the pilot has been lit for one minute, the burners can be turned on. Turn the ON/OFF switch to ON
position. NOTE: To use the thermostat function (if installed) the control knob must be set
to “ON” and ON/OFF switch must be in the “OFF” position.
11. If the gas logs will not operate, follow the instructions “To Turn Off Gas To Heater” below and call your
service technician or gas supplier.
Hi/Lo Control
to the ON position.
to IGN position. Push in
On/Off Switch
Figure 36 - Pilot
TO TURN OFF GAS TO HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2. If applicable: Turn ON/OFF switch to OFF position and/or set thermostat (if present) to lowest setting.
3. If applicable: Turn off all electric power to the heater.
44D0060 31
Ignitor Pilot Control
Piezo
Figure 37 - Control Cover Plate for Milli-Volt
OPERATING INSTRUCTIONS AND CLEANING AND SERVICING
MATCH LIGHTING INSTRUCTIONS
1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.).
2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo
button, light a match and hold the flame to the end of the pilot and ignite the pilot.
3. After control knob has been released and pilot stays lit, reinstall any items that were removed
for pilot access.
4. Call a qualified service technician for repair or replacement of the piezo ignitor.
CLEANING AND SERVICING
Annual inspection and cleaning by your dealer or qualifi ed service technician is recommended to prevent
malfunction and/or sooting.
T urn off heater and allow to cool before
cleaning. Disconnect electrical power
before cleaning or servicing.
WARNING
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.
• Brush logs with soft bristle brush or vacuum with brush attachment.
• Vacuum loose particles and dust from the front and rear burner, control and piezo covers and grate weldment.
• Inspect and clean burner air intake holes. Remove lint or particles with vacuum, brush, or pipe cleaners. Failure to
keep air intake holes clean will result in sooting and poor combustion.
• External case should be dusted and wiped with a wet soapy cloth.
ANNUAL CLEANING/INSPECTION - Refer to parts diagram for location of items discussed below.
• Inspect and clean burner air intake holes. Remove lint or particles with vacuum, brush or pipe cleaners. Failure to keep
air intake holes 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 and rear burner.
• Replace battery in remote control device.
32 44D0060
TROUBLESHOOTING
Turn appliance OFF and allow to cool
before servicing. Only a qualified
service person should service and
repair the heater.
WARNING
WARNING
Note: All troubleshooting items are listed in order of operation.
OBSERVED PROBLEM
When ignitor button is pressed,
there is no spark at ODS/pilot.
Appliance produces unwanted
odors.
Appliance shuts off during use.
POSSIBLE CAUSE
1. Ignitor electrode positioned wrong.
2. Ignitor electrode is broken.
3. Ignitor electrode not connected to ignitor
cable.
4. Ignitor cable pinched or wet. Keep ignitor cable
dry.
5. Broken ignitor cable.
6. Bad piezo ignitor.
1. Appliance burning vapors from paint, hair
spray, glues, etc.
2. Gas leak.
3. Initial burn off.
1. Not enough fresh air is available for ODS/
pilot to operate.
2. Low line pressure.
3. ODS/pilot is partially clogged.
4. Defective Thermopile.
5. Restrictions in incoming air flow.
REMEDY
1 Replace ignitor.
2. Replace ignitor.
3. Reconnect ignitor cable.
4. Free ignitor cable if pinched by any
metal or tubing.
5. Replace ignitor cable.
6. Replace piezo ignitor.
1. Ventilate room. Stop using odor causing
products while heater is running.
2. Locate and correct all leaks.
3. Ventilate room and turn unit on high
until odor is gone. Odor should be gone
after 2 to 3 hours of continuous use.
1. Open window and/or door for ventilation.
2. Contact local gas company.
3. Clean ODS/pilot.
4. Check wire connections. Check output
should be 500 milli-volts across TH/TP
and TP Terminals with ON/OFF switches
off.
5. Check for bottom riser on glass door,
sunken fireplace, excessive lava rock/
cinders densely packed against grate.
Gas odor even when control
knob is in OFF position.
When ignitor button is pressed,
there is spark at ODS pilot, but
no ignition.
44D0060 33
1. Gas leak.
2. Control valve defective.
1. Gas supply turned off or manual shutoff valve
2. Control knob not in PILOT position.
3. Control knob not pressed in while in PILOT
4. Air in gas lines when installed.
5. ODS/pilot is clogged.
6. Gas regulator setting is not correct.
closed.
position.
1. Locate and correct all leaks.
2. Replace control valve.
1. Turn on gas supply or open manual
shutoff valve.
2. Turn control knob to PILOT position.
3. Press in control knob while in PILOT
position.
4. Continue holding down control knob.
Repeat igniting operation until air is
removed.
5. Replace ODS/pilot assembly or get it
serviced.
6. Check incoming pressure. Replace gas
regulator.
TROUBLESHOOTING
If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and
the heater may backfi re when lit. If the gas quality or pressure is low, contact your local
gas supplier immediately.
WARNING
OBSERVED PROBLEM
ODS/pilot lights, but flame
goes out when control knob is
released.
Burner does not light after ODS/
pilot is lit.
Burner backfires during combustion.
Slight smoke or odor during
initial operation.
POSSIBLE CAUSE
1. Control knob not fully pressed in.
2. Control knob not pressed in long enough.
3. Manual shutoff valve not fully open.
4. Thermocouple connection loose at control
valve.
5. 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 a dirty or
partially clogged ODS/pilot.
6. Thermocouple damaged.
7. Control valve damaged.
1. Burner orifice is clogged.
2. Burner orifice diameter is too small.
3. Inlet gas pressure is too low.
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Burner orifice is clogged or damaged.
2. Burner is damaged.
3. Gas regulator defective.
REMEDY
1. Press in control knob fully.
2. After ODS/pilot lights, keep control
knob pressed in for 30 seconds.
3. Fully open manual shutoff valve.
4. Hand tighten thermocouple connection
until snug, then tighten 1/4 turn more.
5. Contact local gas company.
6. Replace thermocouple.
7. Replace control valve.
1. Clean orifice.
2.
Replace burner orifice.
3.
Contact qualified service person.
1. Contact local gas company.
2. Clean burner or replace burner orifice.
1. Clean burner or replace burner orifice.
2. Replace burner.
3. Replace gas regulator.
Logs appear to smoke after initial operation.
Heater produces a whistling
noise when burner is lit.
No gas to pilot.
34 44D0060
1. Vapors from paint or curing process of logs.
1. Turning control knob to HIGH position when
2. Air in gas line.
3. Dirty or partially clogged burner orifices.
1. LP-regulator shut down due to inlet pressure
burner is cold.
too high.
1. 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.
2. Log heater is intended to be smokeless.
Turn OFF heater and call qualified
service person.
1. Turn control knob to LOW position and
let warm up for a minute.
2. Operate burner until air is removed from
line. Have gas line checked by local
gas company.
3. Clean burner or replace burner orifice.
1. Verify LP tank regulator is installed and
set at 11" to 13" w.c.
2. Replace regulator on heater.
BURNER ASSEMBL Y
REPLACEMENT PARTS
4
3
10
5 (Manual)
6
12
11
8
7
9
5 (Milli-Volt)
10
2
1
13
Failure to position the parts in
accordance with these diagrams or
failure to use only parts specifi cally
approved with this appliance may
result in property damage or personal
WARNING
injury.
44D0060 35
REPLACEMENT PARTS LIST
REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER.
BURNER ASSEMBL Y
DEB20
Item Description Qty Natural Propane Natural Propane
Common Parts
1 Piezo Ignitor 1 14D0503 14D0503 14D0503 14D0503
2 Piezo Wire 1 00K0632 00K0632 00K0632 00K0632
3 Front Burner 1 44D0020K 44D0020K 44D0019K 44D0019K
4 Rear Burner 1 44D0035K 44D0036K 44D0081K 44D0082K
Manual Control
5 Control Valve 1 30D0201 30D0202 30D0201 30D0202
6 Control Valve Nut 1 00F0586 00F0586 00F0586 00F0586
7 Valve Regulator 1 24D0305 24D0306 24D0305 24D0306
8 Front Burner Injector 1 44D0200 44D0202 44D0204 44D0206
9 ODS Pilot Assembly 1 26D2529 14D0476 26D2529 14D0476
10 Control Knob 1 18D0603 18D0603 18D0603 18D0603
11 Rear burner Injector 1 44D0201 44D0203 44D0205 44D0207
Milli-Volt Control
5 Control Valve 1 14D0467 14D0468 14D0467 14D0468
8 Front Burner Injector 1 44D0208 44D0210 44D0212` 44D0214
9 ODS Pilot Assembly 1 14D0473 14D0477 14D0473 14D0477
10 Control Knob 2 18D0603 18D0603 18D0603 18D0603
11 Rear burner Injector 1 44D0209 44D0211 44D0213 44D0215
12 On/Off Switch 1 32D0232 32D0232 32D0232 32D0232
13 Thermostat Sensor 1 26D3314 26D3314 26D3314 26D3314
DEB24/DEB30
Accessories
Flex Connector Flexcon 30 All Models
Wall Switch Kit MVWS Milli-volt only
Wall Thermostat Kit WT Milli-volt only
Hand Held Remote RCT, RCB Milli-volt only
Hand Held Thermostat Remote RCT, RCST Milli-volt only
Remote Receiver Cover Ember RRCE All Models
Remote Receiver Cover Metal RRCM All Models
Thermostat Sensor Kit TS All Models
36 44D0060
REPLACEMENT PARTS LIST
REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER.
LOGS
Item Description Qty DEB20 DEB24 DEB30
1 Back Log 1 44D1011K 44D1001K 44D1006K
2 Right Center Log 1 44D1022 44D1020 44D1024K
3 Left Center Log 1 44D1023 44D1021 44D1025
4 Middle Front Log 1 44D1012K 44D1002K 44D1007K
5 Left Front Log 1 N/A 44D1003K 44D1008K
6 Top Log 1 44D1013K 44D1004K 44D1009K
3
6
2
Failure to position the parts in
accordance with these diagrams or
failure to use only parts specifi cally
approved with this appliance may
result in property damage or personal
WARNING
injury.
1
4
5 (DEB24/DEB30)
44D0060 37
NOTES
MASSACHUSETTS RESIDENTS ONLY:
PLEASE READ AND FOLLOW THESE
SPECIAL REQUIREMENTS
NOTE REGARDING VENTED PRODUCTS
This product must be installed by a licensed plumber or gas fi tter when installed within the Commonwealth of Massachu-
setts.
Any residence with a direct vent product must have a CO detector installed in the residence.
Installation of the fi replace or vented gas log in the State of Massachusetts requires the damper to be permanently removed
or welded in the fully open position.
In addition, a naturally vented gas log may not be installed in a bedroom or bathroom in the State of Massachusetts.
Flex line installation must not exceed 36 inches and must have a T shutoff valve.
NOTE REGARDING VENT FREE PRODUCTS
This product must be installed by a licensed plumber or gas fi tter when installed within the Commonwealth of Massachu-
setts.
In addition, vent free products may not be installed in a bedroom or bathroom regardless of size or type in the State of Massachusetts.
Flex line installation must not exceed 36 inches and must have a T shutoff valve.
CARBON MONOXIDE DETECTOR REQUIREMENTS
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side
wall exhaust vent termination is less than seven (7) feet above fi nished grade in the area of the venting, including but
not limited to decks and porches, the following requirements shall be satisfi ed:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumber or gasfi tter shall observe that a hard wired carbon monoxide
detector with an alarm and battery back-up is installed on the fl oor level where the gas equipment is to be installed.
In addition, the installing plumber or gasfi tter shall observe that a battery operated or hard wired carbon monoxide
detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side
wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services
of qualifi ed licensed professionals for the installation of hard wired carbon monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic,
the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent
fl oor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation,
the owner shall have a period of thirty (30) days to comply with the above requirements; provided, however,
that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.
SPECIAL REQUIREMENTS CONTINUED
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certifi ed.
3. SIGNAGE. A metal or plastic identifi cation plate shall be permanently mounted to the exterior of the building at
a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch
in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.”
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage
installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required T o Be Vented” in the most current edition of
NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from
the dwelling, building or structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer
of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system
components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the
venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the
manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts
for venting the fl ue gases, but identifi es “special venting systems,” the following requirements shall be satisfi ed by the
manufacturer:
1. The identifi cation of each “special venting system” shall include either the listing of the website, phone number or
manufacturer’s address where the venting system installation instructions can be obtained; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions provided with that
system shall include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for the Product Approved side wall horizontally vented gas fueled equipment and
all the venting instructions, parts lists, and/or all design instructions for the venting system shall remain with the appliance or equipment at the completion of the installation.
MONESSEN HEARTH SYSTEMS
LIMITED LIFETIME WARRANTY POLICY
LIFETIME WARRANTY
The following components are warranted for life to the original owner, subject of proof of purchase: Firebox,
Combustion Chamber, Heat Exchanger, Grate, and Stainless Steel Burners.
FIVE YEAR WARRANTY
The following components are warranted for 5 years to the original owner, subject of proof of purchase: Vent Free
Ceramic Fiber Logs and Aluminized Burners.
BASIC WARRANTY
Monessen Hearth Systems (MHS) warrants the components and materials in your gas appliance to be free from
manufacturing and material defects for a period of two years from date of installation. After installation, if any of
the components manufactured by MHS in the appliance are found to be defective in materials or workmanship,
MHS will, at its option, replace or repair the defective components at no charge to the original owner. MHS will
also pay for reasonable labor costs incurred in replacing or repairing such components for a period of two years
from the date of installation. Any products presented for warranty repair must be accompanied by a dated proof
of purchase.
This Limited Lifetime Warranty will be void if the appliance is not installed by a qualified installer in accordance
with the installation instructions. The Limited Lifetime Warranty will also be void if the appliance is not operated
and maintained according to the operating instructions supplied with the appliance, and does not extend to (1)
firebox/burner assembly damage by accident, neglect, misuse, abuse, alteration, negligence of others, including
the installation thereof by unqualified installers, (2) the costs of removal, reinstallation or transportation of
defective parts on the appliance, or (3) incidental or consequential damage. All service work must be performed
by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability
of fitness for purpose and of all other obligations or liabilities. Monessen Hearth Systems, Inc. does not
assume for it any other obligations or liability in connection with the sale or use of the appliance. In states
that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect
damage, those limitations of exclusions may not apply to you. You may also have additional rights not covered
in this Limited Lifetime Warranty.
MHS reserves the right to investigate any and all claims against the Limited Lifetime Warranty and decide
upon method of settlement.
For information about this warranty, contact:
Technical Services
Monessen Hearth Systems
149 Cleveland Drive
Paris, Kentucky 40361
NOVEMBER 2007 P/N 44D0060 • Rev. 8
40 44D0060
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