Monessen Hearth CSVF20SNV User manual

ON
OFF
READ AND SAVE THESE INSTRUCTIONS
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 8.
WARNINGS
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
– Do not store or use gasoline or other flammable
vapors and liquids in the 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
fire department.
– Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
WARNINGS
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.
UNVENTED GAS
CAST IRON STOVE
INSTALLATION AND OPERATING
INSTRUCTIONS
MODELS:
CSVF20SNV CSVF30SNV
CSVF20SPV CSVF30SPV
Natural Gas or
Propane/LPG
Milli-Volt Control

2 58D6002
CONTENTS
Important Safety Information .......................... 3
Product Features .............................................. 5
Dimensions ....................................................... 6
Getting Started .................................................. 7
Product Specifications..................................... 8
Ignition Controls ............................................ 8
Pilot ............................................................... 8
Thermal Generator ....................................... 8
General Installation Information ..................... 9
Codes ........................................................... 9
Adequate Combustion and Ventilation Air .... 9
Clearances / Height Requirements ............... 11
Removing Unit from Crate ............................. 13
Connecting the Gas ........................................ 14
Checking Gas Pressure ................................. 15
Connecting Remote Receiver ....................... 15
Electrical Wiring ............................................. 16
Connecting Optional Wall Switch or
Thermostat .................................................. 16
Checking System Operation ....................... 16
Installing Thermostat Sensor ...................... 17
Operating Thermostat Sensor ..................... 18
Log Placement ................................................ 19
Installing Logs on Grate .............................. 19
Rock Wool Installation ................................... 20
Flame Appearance .......................................... 20
Checking Pilot Flame .................................. 20
Checking the Burner Flame ........................ 21
Operating Instructions ................................... 21
For Your Safety Read Before Lighting ........ 22
Milli-Volt Control Lighting Instructions ......... 23
To Turn Off Gas to Heater ........................... 23
Match Lighting Instructions ......................... 24
Cleaning and Servicing .................................. 24
Replacement Parts List .................................. 25
Logs ............................................................ 25
Burner Assembly ......................................... 26
Troubleshooting ............................................. 28
Warranty .......................................... Back Cover

58D56002 3
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.
10. This unit complies with ANSI Z21.11.2-2001 Unvented
Heaters.
11. Do not install heater in a bathroom or bedroom unless
approved for bedroom use.
12. Correct installation of the ceramic fiber logs, proper
location of the heater, and annual cleaning are neces-
sary 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 com-
bustion by-products 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.
INSTALLER
Please leave these instructions with the owner.
OWNER
Please retain these instructions for future reference .
IMPORTANT
Read these instructions carefully before installing or trying to operate this vent-free gas heater.
IMPORTANT SAFETY INFORMATION
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. Continued on page 4
• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fire,
burns, explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the stove. Avoid any drafts that alter burner
flame patterns.
• Do not use a blower insert, heat exchanger insert or other accessory, not approved
for use with this heater where applicable.
WARNING
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 apli-
ance.
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 exces-
sive lint from carpeting, bedding material, etc. It
is imperative that control compartments, burners
and circulating air passageways be kept clean.

4 58D6002
IMPORTANT SAFETY INFORMATION
Continued from page 3
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 pro-
vided. See page 8.
16. Keep room area clear and free from combustible materi-
als, gasoline and other flammable vapors and liquids.
17. Unvented gas heaters are a supplemental zone heater.
They are not intended to be a primary heating appli-
ance.
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,
addition 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.
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.
24. Never burn solid fuels in an unvented room heater, fire-
place or stove.
25. Do not set kettles or humidifying devices on top of
stove.
26. The stove door/screen must be closed when the appli-
ance is operating. The screen shall have openings for
induction of combustion air.

58D56002 5
ON
OFF
PRODUCT FEATURES
Off/Pilot/On
Knob
Hi/Lo Knob
Door
Figure 1 - Cast Iron Stove
Optional
Remote
Receiver
Optional
Thermostat
Sensor
Piezo
Handle
On/Off
Switch

6 58D6002
A
C
B
CSVF20S CSVF30S
A211/4" 263/4"
B23" 281/2"
C161/2" 193/4"
DIMENSIONS
Figure 2 - Dimensions

58D56002 7
GETTING STARTED
MAKE SURE YOU HAVE RECEIVED ALL PARTS:
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 must have the following items available before proceeding with installation:
Gloves are recommended when handling ceramic fiber logs to prevent skin irritation
from loose fibers. Logs are fragile--handle with care.
CAUTION
Check your packing list to verify that all listed parts have been received. You should have the following:
• Cast Iron Stove with Burner Assembly
• Installation/Operating Instructions
• Ceramic Fiber Logs
• Touch-up Paint
Millivolt controlled heater designed to be operated with optional devices for ON/OFF functions.
• Hand-Held Remote with Receiver, Manual or Thermostat
• Wall Switch with 15' Wire
• Wall T-stat with 15' Wire
• Stove Mounted Thermostat Control
• External regulator (for propane/L.P.G.)
or high pressure natural gas (1 to 2 PSI system)
• Pipe sealant approved for use with propane/L.P.G.
(Resistant to sulfur compounds)
• Piping which complies with local codes • Manual shutoff valve
• Sediment trap (recommended) • Tee joint
• Pipe wrench or appropriate wrench set • Screwdrivers

8 58D6002
PRODUCT SPECIFICATIONS
NATURAL GAS
NOTE: An external regulator is required to reduce supply pressure to a maximum of 101/2" w.c. on Natural Gas
systems operating at higher pressure.
MILLIVOLT PRESSURE
Regulator Pressure Setting: 3.5" w.c.
Pilot Regulator: 3.5" w.c.
Gas Inlet Pressure: Max. 10 1/2" w. c. Min. 5" w.c.
IGNITION CONTROLS
Piezo ignitor allows ignition of the pilot without the use of matches.
Milli-Volt control has four (4) positions:
OFF - All gas to the burner is shut off at the valve.
IGN - Valve position to light/maintain a standing pilot.
ON - Valve position to turn burners ON/OFF with remote switch/thermostat.
LOW/HI - Variable position to control flame height (heat output). Both front and rear burners are in operation to
provide realistic glow and yellow flame.
PILOT/ODS
The gas log heater is fitted with a specially designed safety pilot (ODS assembly) light 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 millivolt gas log pilot is fitted with a millivolt thermopile generator to provide power for remote activation.
Gas Rate
Model Number Type Max. BTU/Hr Min. BTU/Hr
CSVF20SNV(G-EBL-ES-EMB) Milli-Volt 10,000 6,000
CSVF30SNV(G-EBL-ES-EMB) Milli-Volt 32,000 20,000
PROPANE / LPG
Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c.
MILLIVOLT PRESSURE
Regulator Pressure Setting: 10" w.c.
Gas Inlet Pressure: Maximum 13" w.c.
Minimum 11" w.c.
Gas Rate
Model Number Type Max. BTU/Hr Min. BTU/Hr
CSVF20SPV(G-EBL-ES-EMB) Milli-Volt 10,000 6,000
CSVF30SPV(G-EBL-ES-EMB) Milli-Volt 32,000 26,000

58D56002 9
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
GENERAL INSTALLATION INFORMATION
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/NFPA54), defines a confined space as a space whose volume is 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 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 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 1011 kg per pa-sec-m2) or less with openings gasketed or sealed;
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.
Do not install the heater …
• Where curtains, furniture, clothing, or other flammable objects are less than 42" from
the front of the heater.
• In high traffic areas.
• In windy or drafty areas.
WARNING

10 58D6002
ON
OFF
L2L1
W
H
GENERAL INSTALLATION INFORMATION
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
50
Consider two connecting rooms with an open area between, with the following dimensions:
L1 = 151/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.
BTU/Hr = (151/2 + 12) x (12) x (8)
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)
50
Figure 3 - Example of a Large Room with 1/2 Wall Divider
Counter
Cast Iron Stove
x 1000
x 1000 = 52800 BTU/Hr
x 1000 = 29760 BTU/Hr
If the area in which the heater may be operated is smaller than that defined as an
unconfined space or if the building is of unusually tight construction, provide adequate
combustion and ventilation air by one of the methods described in the National Fuel
Gas Code, ANSI Z223.1, NFPA54, Section 5.3 or applicable local codes.
WARNING

58D56002 11
D
Minimum
to Either
Side Wall
E
Minimum
A
G
G
D
Minimum
to Either
Side Wall
F Minimum
F
Minimum
36"
in Front
C
B
Mantel Clearance from
Top of Unit
Side, Measured from Top
Rear
Measured
from Back
Corner
Measured
From Top
Corners
Product
Min. Ceiling
from Floor
Max.
Protrusion Min. Height Right Left
A B C D E F G
VF20 72" 12" 16" 1" 1" ½" 1½"
VF30 72" 12" 18" 2" 2" 1" ½"
CLEARANCES / HEIGHT REQUIREMENTS
Side
Wall Mantel
Figure 4 - Minimum Clearance to Walls and Ceiling
The dimensions shown in Figure 4 are minimum clearances to maintain in installing this
heater. Left and right clearances are determined when facing the front of the heater.
Follow these instructions carefully to ensure safe installation. Failure to follow
instructions exactly can create a fire hazard.
The appliance cannot be installed on a carpet, tile or other combustible material other
than wood flooring, the appliance shall be installed on a metal, wood or noncombustible
material panel extending full width and depth of the appliance.
WARNING
Front View
Corner Installation Wall Installation
Side View
Ceiling
Ceiling
Floor
Side
Wall
Floor

12 58D6002
ON
OFF
A
C
B
CLEARANCES / HEIGHT REQUIRMENTS
Figure 5 - Placing Stove in Alcove
Note: Maintain minimum side and back clearances when placing stove in alcove.
Height From
Hearth
A
Width
B
Depth
C
VF20 38½" 23" 36"
VF30 52" 34" 36"
Tested Minimum Alcove Dimensions

58D56002 13
PILOT
OFF
REMOTE CONTROL
LOGS
ON
OFF
LOGS
PILOT
OFF
REMOTE CONTROL
LOGS
REMOVING UNIT FROM CRATE
1. Remove two (2) straps. See Figure 6.
2. Open plastic bag and slide to bottom of unit. See
Figure 7.
3. Lift up on ash lip and pivot down to open control
door. See Figure 8.
4. Lift up on front. Pivot bottom of front out. Remove
front. See Figure 8.
5. Lift screen to remove.
6. Remove log box from inside of unit.
7. Lift unit off pallet. Lift unit up high enough to clear
upright supports unit is sitting on.
Note: You will need at least two (2) strong
people to lift unit off of pallet.
Figure 6 - Removing Straps and Plastic from Unit
Figure 7 - Opening Control Door and Removing
Hearth Door
Figure 8 - Removing Log Box
Straps Plastic
Bag
Control
Door
Ash Lip
Hearth
Door
Log
Box
Pallet

14 58D6002
Pipe Coupling
To Heater
Valve
Gas Supply
Inlet
CONNECTING THE GAS
NOTICE: A qualified gas appliance installer must connect the heater to the gas supply. Consult all
local codes.
IMPORTANT: Hold heater valve firmly with a wrench to prevent movement when connecting to inlet pipe.
Manual Shutoff
Valve
Pipe
Stainless
Flexible Tube
Figure 9 - Gas Connection
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.
Locations that the Pressure
Tapping Point May Be Installed
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 sulfide 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 flow 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
plugged 1/8" NPT pressure tapping point should be installed upstream of the appliance.
See Figure 9.
CAUTION
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 INSTALL THE HEATER. Contact your dealer
for the correct model.
CAUTION

58D56002 15
ON
OFF
CHECKING GAS PRESSURE AND CONNECTING REMOTE RECEIVER
MILLIVOLT CONTROL (FIGURE 10)
The valve regulator controls the burner pressure which should
be checked at the pressure test point.
If outlet pressure is low, check inlet pressure against data plates
or manual.
Turn captured slotted screw counter clockwise 2 or 3 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.
NOTE: Remove control panel to access gas valve
and ignitor battery module.
Figure 10 - Pressure Test Point Location
Milli-Volt Control
Test Port “OUT”
CONNECTING REMOTE RECEIVER
1. Remove cover on control panel to show opening for
remote receiver. See Figure 11.
2. Cut cable to length (approximately 12") for placement in
the fireplace.
3. Strip back 1/4" of the insulation from free end of each
wire. Do not cut off wire connector.
4. Connect two .25 female connectors to the wires at free
end of the cable.
5. Insert the wire connector into the receiver. If remote does
not have plug-in connector, strip back 1/4" of insulation.
Insert wire into terminal and tighten screws.
6. Connect the connectors to the two .25" male connectors
located on the left side when facing the unit. See Figure
11. Do not let the wire touch the grate or burners.
7. Slide remote receiver in the opening of control panel.
Use two screws provided to attach remote receiver to the
control panel. See Figure 11.
8. Replace Cover. See Figure 11. Figure 11 - Installing Remote Receiver
Remote Receiver
Cover
NOTE: Do not place remote in combustion chamber.
Connecting directly to an unregulated
propane/L.P.G. tank can cause an
explosion.
WARNING
The heater gas inlet connection is 3/8" NPT at the valve. The
inlet is located on left side of stove. Remove front control plate
to better access the inlet.
When tightening up the joint to the valve, hold the valve securely
with a wrench to prevent movement.
Test all gas joints from the gas meter to the heater valve for
leaks using a gas analyzer or soap and water solution after completing connection. DO NOT USE AN OPEN FLAME.
Check the gas pressure with the appliance burning and the control set to HIGH.

16 58D6002
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
On/Off
Switch
On/Off
Switch
ODS
Pilot
Wall
Switch
Optional Wall
Switch, Wall Thermostat,
Thermostat Sensor or
Remote
ODS Pilot
Millivolt
Valve
Spade Terminal
3
1
2
CONNECTION
1 = TP
2 = TP, TH
3 = TH
Figure 12 - Wiring Diagram
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.
CONNECT
CHECK TO METER THERMOSTAT METER
TEST TEST LEADS TO CONTACTS READING
TERMINALS SHOULD BE
A COMPLETE 2 & 3 CLOSED MINIMUM
SYSTEM 175mv
B THERMOPILE 1 & 2 OPEN 500mv
OUTPUT OR MORE
A. COMPLETE MILLIVOLT SYSTEM CHECK
("A" Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main Burners should turn ON)
a. If the reading is more than 175 millivolts and the automatic valve still does not come on - replace the valve.
b. If the closed circuit reading ("A" reading) is less than 175 millivolts, determine cause for low reading - proceed as
follows:
B. THERMOPILE OUTPUT READING CHECK
(“B” Reading - Thermostat contacts OPEN - Main burner OFF)
Check gas pressure to the unit. If gas pressure is within minimum and maximum on data plate, then replace pilot. If the minimum
millivolt reading is not obtainable, replace pilot.
CHECKING SYSTEM OPERATION
The millivolt system and individual compo-
nents may be checked with a millivolt meter
having a 0-1000mv range. Conduct each
check shown in chart by connecting meter
test leads to terminals as indicated.
Switch

58D56002 17
PILOT HEAT
THERMOSTAT
REMOTE CONTROL
Figure 14 - Installing T-Stat Sensor and Control Knob
T-Stat
Sensor
Wiring
Harnesses
Screws
Knob
INSTALLING THERMOSTAT SENSOR
(OPTION SOLD SEPARATELY)
1. Lift up on ash lip and pivot down to open control
door.
2. Remove the face plate by removing the six (6)
screws holding the faceplate in place. This will
allow you to pull the faceplate away from the
unit about 3" to 4". See Figure 13.
3. Slip the t-stat sensor behind the faceplate. Attach
the t-stat sensor to the faceplate with 2 screws
provided. Make sure the thermo bulb wire is on
the bottom of the t-stat sensor. See Figure 14.
4. Attach wiring harnesses to back of t-stat sensor.
See Figure 14. Attach the other ends of the har-
ness to either TP/TH and TH on control valve or
to existing wiring harness with two (2) 0.250"
male spade terminals for remote t-stat operation.
See Figure 12, page 16.
ELECTRICAL WIRING (MILLI-VOLT)
Figure 13 - Removing Face Plate from Unit
Screws
Face Plate
Thermo
Bulb
Screws
Control
Door
Ash
Lip

18 58D6002
PILOT
OFF
REMOTE CONTROL
4. Remove adhesive backing from plastic clip. Press
clip to bottom of valve. Clip thermo bulb into plastic
clip. See Figure 15.
5. Reattach faceplate or reinstall base.
6. Install knob to shaft of t-stat sensor. See Figure 14,
page 17.
Figure 15 - Clipping Thermo Bulb into
Plastic Clip.
Valve
Thermo
Bulb
Plastic Clip
OPERATING THERMOSTAT SENSOR
1. Follow millivolt lighting instructions on lighting plate attached to unit or in homeownerʼs manual.
2. With control knob in the “ON” position make sure the ON/OFF switch is in the “OFF” position. See Figure 16.
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.
Figure 16 - Control Knob in “ON” Position and ON/OFF Switch in “OFF” Position
Pilot
Optional
Fan
ELECTRICAL WIRING (MILLI-VOLT)
Hi/Lo
Knob
Piezo
Ignitor

58D56002 19
PILOT
OFF
REMOTE CONTROL
Left
Bottom
Log #2
Back Log
#1
Top Left
Log #4
LOG PLACEMENT
INSTALLING LOGS ON GRATE (See Figure 17)
1. Install back log (#1) on rear log support bracket.
2. Install left bottom log (#2) on left log support bracket in front
of back log.
3. Install right bottom log (#3) on right log support bracket in
front of back log.
4. Install top left log (#4) on top of left bottom log.
5. Install top right log (#5) on top of right bottom log.
Figure 17 - Installing Logs to Grate
Before you begin — This unit is supplied with four 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 firmly 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 personal
injury.
WARNING
During initial operation of the new
heater, burning logs will give off a paper
burning smell and orange flames will be
present. Simply open the windows for
a few hours to vent the odor.
CAUTION
Right
Bottom
Log #3
Right
Top Log
#5
Rear Log
Support
Bracket
Left Log
Support
Bracket
Right Log
Support
Bracket

20 58D6002
PILOT
OFF
REMOTE CONTROL
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 PILOT FLAME
The pilot flame must always be present when the heater is in operation. It should just touch the top of the ther-
mocouple tip for natural. See Figure 19 for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the burners cannot function reliably. See Figure 20 for incorrect
shape of pilot flame.
MILLI-VOLT CONTROL
Figure 19 - Correct Appearance of Pilot Flame Figure 20 - Incorrect Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP Thermocouple
for LP
Thermocouple
for Natural
ROCK WOOL INSTALLATION
Figure 18 - Rock Wool Installation
1. Break rock wool into dime-sized pieces. ➞
2. Place rock evenly across rock wool tray and front burner as shown in
Figure 18.
• Rock wool depth must not be more than 1".
• Do not place rock wool past the bend in rock wool tray.
• Do not place rock wool on rear burner.
FLAME APPEARANCE
Rock Wood
Tray
Rock Wool
Bend in Rock
Wool Tray
Rock wool must be placed
correctly. Placing rock wool
in wrong area will create high
carbon monoxide.
WARNING