Desa Comfort Glow CF26PTA Quick start guide

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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.
UNVENTED (VENT-FREE) BAY FRONT GAS LOG FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
MODELS CF26PTA AND CF26NTA
19,000 TO 26,000 BTU/HR REMOTE CONTROL READY
Patent Pending
Fireplace Shown With Optional Bay Front Mantel
AUTO
OFF
ON

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2
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 5 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
TABLE OF CONTENTS
Safety Information ............................................... 3
Local Codes ........................................................ 4
Unpacking ........................................................... 4
Product Identification ........................................... 5
Product Features ................................................. 5
Air For Combustion and Ventilation ..................... 5
Installation ........................................................... 8
Operating Fireplace ........................................... 19
Inspecting Burners ........................................... 20
Cleaning and Maintenance ................................ 21
Troubleshooting ................................................. 23
Specifications .................................................... 27
Replacement Parts ............................................ 27
Service Hints ..................................................... 27
Technical Service .............................................. 27
Illustrated Parts Breakdown and Parts List ....... 28
Parts Central ..................................................... 32
Accessories ....................................................... 32
Warranty Information ...........................Back Cover

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113896-01A 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, op-
erate, or service this fireplace.
Improper use of this fireplace
can cause serious 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 use a
blower insert, heat exchanger
insert, or other accessory not ap-
proved for use with this heater.
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.
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 ob-
jects in the fireplace or on logs.
Fireplace front and screen be-
come very hot when running fire-
place. Keep children and adults
away from hot surfaces to avoid
burns or clothing ignition. Fire-
place will remain hot for a time
after shutdown. Allow surfaces
to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with fireplace.
You must operate this fireplace
with a fireplace screen in place.
Make sure fireplace screen is
closed before running heater.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline, and other flam-
mable vapors and liquids.

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4
SAFETY INFORMATION
Continued
1. This appliance is only for use with the type
of gas indicated on the rating plate. This ap-
pliance 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
4. This fireplace shall not be installed in a bed-
room or bathroom.
5. Do not use this fireplace as a wood-burning
fireplace. Use only the logs provided with the
fireplace.
6. Do not add extra logs or ornaments such as
pine cones, vermiculite, or rock wool. Using
these added items can cause sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of fireplace.
7. This fireplace is designed to be smokeless.
If logs ever appear to smoke, turn off fire-
place and call a qualified service person.
Note: During initial operation, slight smoking
could occur due to log curing and fireplace
burning manufacturing residues.
8. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 21.
9. 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.
10. This fireplace needs fresh air ventilation to run
properly. This fireplace has an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS shuts down the fireplace if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 5. If fireplace keeps
shutting off, see Troubleshooting, page 23.
11. Do not run fireplace
• where flammable liquids or vapors are used
or stored.
• under dusty conditions.
12. Do not use this fireplace to cook food or to
burn paper or other solid fuels.
13. Do not use fireplace if any part has been under
water. Immediately call a qualified service
technician to inspect the room fireplace and
to replace any part of the control system and
any gas control which has been under water.
14. Turn off and unplug fireplace and let cool
before servicing. Only a qualified service
person should service and repair fireplace.
15. Operating fireplace above elevations of 4,500
feet could cause pilot outage.
16. Do not operate fireplace if any log is broken.
Do not operate fireplace if a log is chipped
(dime-sized or larger).
17. To prevent performance problems, do not use
propane/LP fuel tank of less than 100 lbs.
capacity (propane/LP units only).
18. Provide adequate clearances around air
openings.
LOCAL CODES
Install and use fireplace 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
UNPACKING
1. Remove and fireplace from carton.
2. Remove all protective packaging applied to
fireplace for shipment.
3. Make sure your fireplace includes one hard-
ware packet.
4. Check fireplace for any shipping damage. If
fireplace is damaged, promptly inform dealer
where you bought fireplace.

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113896-01A 5
PRODUCT
IDENTIFICATION
Heater Controls
(Inside Door) Screen
Fireplace
Cabinet
Logs
Brick
Liner
Figure 1 - Vent-Free Propane/LP Gas
Compact Fireplace
PRODUCT FEATURES
SAFETY PILOT
This fireplace has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
fireplaces. The ODS/pilot shuts off the fireplace if
there is not enough fresh air.
PIEZO IGNITION SYSTEM
This fireplace has a piezo ignitor. This system
requires no matches, batteries, or other sources
to light fireplace.
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
not be installed in a confined
space or unusually tight con-
struction unless provisions are
provided for adequate combus-
tion and ventilation air. Read the
following instructions to insure
proper fresh air for this and
other fuel-burning appliances
in your home.
Todayʼs homes are built more energy efficient than
ever. New materials, increased insulation, and
new construction methods help reduce heat loss
in homes. Home owners weather strip and caulk
around windows and doors to keep the cold air out
and the warm air in. During heating months, home
owners want their homes as airtight as possible.
While it is good to make your home energy effi-
cient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and fuel
burning appliances draw air from the house to
operate. You must provide adequate fresh air for
these appliances. This will insure proper venting
of vented fuel-burning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54 Section 5.3, Air
for Combustion and Ventilation.
All spaces in homes fall into one of the three fol-
lowing ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 5 through 7 will help
you classify your space and provide adequate
ventilation.

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6
AIR FOR COMBUSTION
AND VENTILATION
Continued
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion and
ventilation. However, in buildings of unusually
tight construction, you must provide additional
fresh air.
Unusually tight construction is defined as
construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of
one perm (6 x 10-11 kg per pa-sec-m2) or
less with openings gasketed or sealed
and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to
areas such as joints around window
and door frames, between sole plates
and floors, between wall-ceiling joints,
between wall panels, at penetrations
for plumbing, electrical, and gas lines,
and at other openings.
If your home meets all of the three criteria
above, you must provide additional fresh
air. See Ventilation Air From Outdoors,
page 7.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Fireplace Location,
below.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1 defines
a confined space as a space whose volume is less
than 50 cubic feet per 1,000 Btu per hour (4.8 m3
per kw) of the aggregate input rating of all appli-
ances installed in that space and an unconfining
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 uncon-
fined space.
* Adjoining rooms are communicating only if
there are doorless
DETERMINING FRESH-AIR FLOW
FOR FIREPLACE LOCATION
Determining if You Have a Confined or
Unconfined Space
Use this work sheet to determine if you have a
confined or unconfined space.
Space: Includes the room in which you will
install heater plus any adjoining rooms with door-
less passageways or ventilation grills between
the rooms.
1. Determine the volume of the space (length x
width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 cu. ft.
(volume of space)
If additional ventilation to adjoining room is
supplied with grills or openings, add the volume
of these rooms to the total volume of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
__________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free fireplace ___________ Btu/Hr
Gas water heater* ___________ Btu/Hr
Gas furnace ___________ Btu/Hr
Vented gas heater ___________ Btu/Hr
Gas fireplace logs ___________ Btu/Hr
Other gas appliances* + ___________ Btu/Hr
Total = ___________ Btu/Hr
* Do not include direct-vent gas appliances. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
Example:
Gas water heater __________ Btu/Hr
Vent-free fireplace + ________ Btu/Hr
Total = ________ Btu/Hr
4. Compare the maximum Btu/Hr the space can
support with the actual amount of Btu/Hr used.
_________ Btu/Hr (maximum the space can support)
_________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space
can support)
56,000 Btu/Hr (actual amount of
Btu/Hr used)
30,000
26,000
56,000

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113896-01A 7
The space in the above example is a confined space
because the actual Btu/Hr used is more than the maxi-
mum Btu/Hr the space can support. You must provide
additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoin-
ing room. If the extra space provides an unconfined
space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr
size makes room unconfined.
If the actual Btu/Hr used is less than the maximum
Btu/Hr the space can support, the space is an un-
confined space. You will need no additional fresh
air ventilation.
WARNING: If the area in
which the heater may be oper-
ated 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/NFPA 54 Section 5.3
or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining un-
confined space. When ventilating to an adjoining
unconfined space, you must provide two perma-
nent openings: one within 12” of the ceiling and
one within 12” of the floor on the wall connecting
the two spaces (see options 1 and 2, Figure 2). You
can also remove door into adjoining room (see
option 3, Figure 2). Follow the National Fuel Gas
Code ANSI Z223.1/NFPA 54, Section 5.3, Air for
Combustion and Ventilation for required size of
ventilation grills or ducts.
AIR FOR COMBUSTION
AND VENTILATION
Continued
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or
ducts. You must provide two permanent openings:
one within 12” of the ceiling and one within 12”
of the floor. Connect these items directly to the
outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the
National Fuel Gas Code ANSI Z223.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostat-
controlled power vent. Heated air entering the attic
will activate the power vent.
Figure 2 - Ventilation Air from Inside
Building Shown with Optional Mantel
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into Adjoining
Room,
Option 1
Figure 3 - Ventilation Air from Outdoors
Shown with Optional Mantel
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To Attic
To
Crawl
Space

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8
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualified ser-
vice person must install fire-
place. Follow all local codes.
Note: Your Comfort Glow fireplace is designed
to be used in zero clearance installations. Wall or
framing material can be placed directly against
any exterior surface of your fireplace, except
where standoff spacers are integrally attached.
If standoff spacers are attached to your fireplace,
these spacers can be placed directly against wall
or framing materials.
Use the dimensions shown for rough openings to
create the easiest installation (see Built-In Fire-
place Installation, page 9).
CHECK GAS TYPE
Use the correct gas type (natural or propane/LP)
for your unit. If your gas supply is not correct, do
not install fireplace. Call dealer where you bought
fireplace for proper type fireplace.
WARNING: This appliance
is equipped for (natural or pro-
pane/LP) gas. Field conversion
is not permitted.
LOCATING FIREPLACE
WARNING: Maintain the
minimum clearances shown in
Figure 4 and 5, page 9. If you can,
provide greater clearances from
floor, ceiling, and joining wall.
You can recess firebox into the wall. You can also
position fireplace in the optional cabinet mantels.
IMPORTANT: Only use optional cabinet mantels
specified in this manual. Purchase the optional man-
tel from your dealer (see Accessories, page 32).
WARNING: Never install the
fireplace
• in a bedroom or a bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 42 inches
from the front, top, or sides of
the fireplace
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
CAUTION: This fireplace cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to fireplace. Installing
fireplace next to vinyl or cloth
wall coverings or operating
fireplace where impurities (such
as, but not limited to, tobacco
smoke, aromatic candles, clean-
ing fluids, oil or kerosene lamps,
etc.) in the air exist, may discolor
walls or cause odors.
IMPORTANT: Vent-free fireplaces add moisture
to the air. Although this is beneficial, installing fire-
place in rooms without enough ventilation air may
cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, page 5.
CAUTION: If you install the
fireplace in a home garage
• fireplace pilot and burner must be
at least 18 inches above floor.
• locate fireplace where moving
vehicle will not hit it.
For convenience and efficiency, install fireplace
• where there is easy access for operation, inspec-
tion, and service.
• in coldest part of room.

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113896-01A 9
BUILT-IN FIREPLACE
INSTALLATION
Built-in installation of this fireplace involves in-
stalling fireplace into a framed-in enclosure. This
makes the front of fireplace flush with wall. Follow
the instructions below to install the fireplace in this
manner. If installing a built-in mantel above the
fireplace, you must follow the clearances shown
in Figure 9, page 11. If using for built-in instal-
lation off of the floor, follow clearances shown
in Figure 4.
Actual Framing
Height 26" 26 7/8"
Front Width 26 3/4" 26 7/8"
Depth 9 1/2" 10 1/2"
Bottom 3/4" 3/4"
1. Frame in rough opening. Use dimensions shown
in Figure 6 for the rough opening.
If installing in a corner, use dimensions shown
in Figure 7 for the rough opening. The height
is 26 1/8" which is the same as the wall opening
above.
2. An optional blower accessory is available (see
Accessories, page 32). There are two options
for connecting blower to electrical source.
Option one: Have a licensed electrician install
a properly grounded, three-prong 120-volt
electrical outlet at fireplace location. Locate
outlet inside the framed enclosure. Blower
power cord will plug into this outlet.
INSTALLATION
Continued
An optional blower kit is available from your
dealer. See Accessories, page 32. If planning to use
blower, locate fireplace near an electrical outlet.
Note: When installing fireplace directly on carpet-
ing, tile or other combustible material, other than
wood flooring, the fireplace shall be installed on a
metal or wood panel extending the full width and
depth of the fireplace.
365/8"
257/8"
513/4"
267/8"
Figure 7 - Rough Opening for Installing
in Corner
267/8"
267/8"
3/4" Off
The Floor
Minimum
10 1/2"
Figure 6 - Rough Opening for Installing
in Wall
Figure 5 - Mounting Clearances As
Viewed From Front of Fireplace Shown
with Optional Mantel
Figure 4 - Mounting Clearances As
Viewed From Front of Fireplace Shown
Built In The Wall
6"
Minimum
From
Sides Of
Fireplace
Left
Side
CEILING
42" Minimum
FLOOR
Right
Side
Top Of
Mantel Can
Be Flush
With Wall
Left
Side
CEILING
Right
Side
42"
Minimum
0" Minimum Clearance To Top Surface Of
Carpeting, Tile Or Other Combustible Material
0" Minimum Clearance To Top Surface Of
Carpeting, Tile Or Other Combustible Material

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10
INSTALLATION
Continued
Option two: Have a licensed electrician con-
nect blower to electrical source at junction box
inside fireplace.
If using option one, have electrical outlet in-
stalled at this time. If using option two, do not
connect blower to electrical source at junction
box until step 6.
3. Install gas piping to fireplace location. This
installation includes an approved flexible gas
line (if allowed by local codes) after the equip-
ment shutoff valve. The flexible gas line must
be the last item installed on the gas piping.
4. Carefully set fireplace in front of rough opening
with back of fireplace inside wall opening.
5. Attach flexible gas line to fireplace gas regula-
tor. See Connecting Fireplace to Gas Supply,
page 16.
6. If the optional blower has been installed con-
nect blower to electrical source.
Option one: Route blower electrical cord
through side or rear access door of fireplace.
Plug electrical cord into electrical outlet.
Option two: Have a licensed electrician con-
nect blower to electrical source at junction box
inside fireplace.
7. Bend four nailing flanges on outer casing with
pliers (see Figure 8).
8. Attach fireplace to wall studs using nails
or wood screws through holes in nailing
flange.
9. Check all gas connections for leaks. See
Checking Gas Connections, page 17.
IMPORTANT: When finishing your firebox,
combustible materials such as wall board, gyp-
sum board, sheet rock, drywall, plywood, etc.
may be butted up next to the sides and top of
the firebox. Combustible materials should never
overlap the firebox front facing. Firebox should
not be placed on top of carpet or other kinds of
fibrous material.
WARNING: Do not allow any
combustible materials to overlap
the firebox front facing.
IMPORTANT: Noncombustible materials such as
brick, tile, etc. may overlap the front facing, but
should never cover any necessary openings like
louvered slots.
Figure 8 - Attaching Fireplace to Wall
Studs
Nails or
Wood
Screws
Nailing
Flanges
WARNING: Do not allow non-
combustible materials to cover
any necessary openings like
louvered slots.
WARNING: Never modify or
cover the louvered slots on the
front of the firebox.
WARNING: Use only non-
combustible mortar or adhe-
sives when overlapping the front
facing with noncombustible
facing material.
Mantel Clearances for Built-In Installation
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above the
firebox may become hot to
the touch. If installed properly,
these temperatures meet the
requirement of the national
product standard. Follow all
minimum clearances shown in
this manual.
If placing mantel above built-in fireplace, you must
meet minimum clearance between mantel shelf and
top of fireplace opening.