Desa Comfort Glow RFN30TA Specification sheet

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WARNING: If the information in this manual is not fol-
lowed 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 quali-
fied installer, service agency or the gas supplier.
VENT-FREE HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
RFN30TA, RFP30TA
VMH3000TNA, VMH3000TPA
15,000 to 30,000 Btu/Hr with Thermostat
Shown with Optional
Mantel Which Features
a Built-in Base

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WARNING: Improper installation, adjustment, altera-
tion, service or maintenance can cause injury or prop-
erty damage. Refer to this manual for correct installation
and operational procedures. For assistance or addi-
tional information consult a qualified installer, service
agency or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is installed. Provi-
sions for adequate combustion and ventilation air must
be provided. Refer to Air for Combustion and Ventilation
section on page 7 of this manual.
This appliance may be installed in an aftermarket,* per-
manently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with the type of gas indi-
cated on the rating plate. This appliance is not convert-
ible for use with other gases.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the
Commonwealth of Massachusetts.
Sellers of unvented propane or natural gas-fired supplemental room heaters shall provide to each
purchaser a copy of 527 CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for bedroom and bathroom installation in the Common-
wealth of Massachusetts.
TABLE OF CONTENTS
Safety Information ............................................... 3
Local Codes ........................................................ 4
Product Identification ........................................... 4
Unpacking ........................................................... 4
Product Features ................................................. 5
Assembling Heater ............................................. 5
Air for Combustion and Ventilation ...................... 7
Installation ........................................................... 9
Operating Heater ............................................... 16
Inspecting Burners ............................................ 18
Cleaning and Maintenance ................................ 19
Troubleshooting ................................................. 20
Specifications .................................................... 23
Replacement Parts ............................................ 23
Service Hints ..................................................... 23
Technical Service .............................................. 23
Illustrated Parts Breakdown and Parts List ....... 24
Accessories ....................................................... 26
Parts Centrals .................................................... 27

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109889-01B 3
SAFETY INFORMATION
WARNING: This product con-
tains and/or generates chemicals
known to the state of California
to cause cancer or birth defects
or other reproductive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate
or service this heater. Improper
use of this fireplace can cause seri-
ous injury or death from burns, fire,
explosion, electrical shock and
carbon monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with head-
aches, dizziness or nausea. If you have these signs,
the heater may not be working properly. Get fresh
air at once! Have heater serviced. Some people
are more affected by carbon monoxide than others.
These include pregnant women, people with heart
or lung disease or anemia, those under the influence
of alcohol and those at high altitudes.
Natural and Propane/LP Gas: Natural and pro-
pane/LP gases are odorless. An odor-making agent
is added to the gas. The odor helps you detect a gas
leak. However, the odor added to the gas can fade.
Gas may be present even though no odor exists.
Make certain you read and understand all warn-
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not allow fans
to blow directly into the heater.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.
WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not ap-
proved for use with this heater.
Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Surface of heater becomes very
hot when running heater. Keep
children and adults away from
hot surface to avoid burns or
clothing ignition. Fireplace
will remain hot for a time after
shutdown. Allow surface to cool
before touching.
Carefully supervise young chil-
dren when they are in the room
with heater.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline and other flam-
mable vapors and liquids.
1. This appliance is only for use with the type of
gas indicated on the rating plate. This appliance
is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) in-
side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building.
• immediately call your gas supplier from a
neighborʼs phone. Follow the gas supplierʼs
instructions
• if you cannot reach your gas supplier, call
the fire department

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4. This heater shall not be installed in a bedroom
or bathroom.
5. This heater needs fresh, outside air ventilation
to run properly. This heater has an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the heater if
not enough fresh air is available. See Air for
Combustion and Ventilation, page 7.
6. If heater shuts off, do not relight until you
provide fresh, outside air. If heater keeps
shutting off, have it serviced.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 19.
8. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
9. Do not run heater
• where flammable liquids or vapors are used
or stored.
• under dusty conditions.
10. Do not use 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.
11. Turn off and unplug heater and let cool before
servicing. Only a qualified service person
should service and repair heater.
12. To prevent performance problems, do not
use propane/LP fuel tank of less than 100 lb.
capacity (propane/LP units only).
13. Operating heater above elevations of 4,500
feet may cause pilot outage.
14. Provide adequate clearances around air
openings.
LOCAL CODES
Install and use heater with care. Follow all local
codes. In the absence of local codes, use the lat-
est edition of The National Fuel Gas Code, ANSI
Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
SAFETY INFORMATION
Continued
PRODUCT
IDENTIFICATION
Figure 1 - Vent-Free Gas Space Heater
Note: Do not remove
Lighting and Warning
Plates from heater
Ignitor Button
Screen
Front
Panel
Log
Lighting and
Warning Plates
Control Knob
UNPACKING
CAUTION: Do not remove
the data plates attached to the
heater assembly. The data plates
contain important warranty and
safety information.
1. Remove heater from carton.
2. Remove all protective packaging applied to
heater for shipment.
3. Make sure your heater includes two hardware
packets.
4. Check heater for any shipping damage. If
heater is damaged, promptly return to dealer
where you bought heater.

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109889-01B 5
PRODUCT FEATURES
SAFETY PILOT
This heater has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
heaters. The ODS/pilot shuts off the heater if there
is not enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system re-
quires no matches, batteries or other sources to
light heater.
THERMOSTATIC HEAT CONTROL
This heater has a thermostat sensing bulb and a
control valve. This results in the greatest heater
comfort. This can also result in lower gas bills.
ASSEMBLING HEATER
Tools Required:
• Phillips screwdriver
• 5/16” hex wrench
• slotted screwdriver
REMOVING FRONT PANEL OF
HEATER
1. Remove two screws near bottom corners of
front panel with Phillips screwdriver.
2. Pull bottom of front panel forward, then down
(see Figure 2).
INSTALLING HOOD
1. Remove hood from protective tray.
2. Locate 4 black sheet metal screws from hard-
ware pack.
3. Place hood on deflector and line up holes (see
Figure 3).
4. Secure hood to deflector with 4 black sheet
metal screws.
Note: Side of hood should be on the outside flange
of deflector.
Figure 2 - Removing Front Panel of
Heater
Log
Retaining
Brackets
Burner
Shield
Screen
Front
Panel
Deflector
Log
Truss-Head
Screw
Brass
Front
Trim
Screw Screw
Heater
Cabinet
Nut
Hood
Sheet
Metal
Screw
Figure 3 - Assembling Heater