Desa VSGF36NT, VSGF36PT, VSGF36PR User Manual

0 (0)
WARNING: 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.
• 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.
Save this manual for future reference.
For more information, visit
WARNING: Improper installation, adjustment, altera­tion, service or maintenance can cause injury or prop­erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi­tional 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. Provi­sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 7 of this manual.
WARNING: For use only with a listed decorative type unvented room heater. Do not build a wood fire.
This firebox has been tested and approved by CSA Inter­national under Z21.91-2001 for use with approved ANSI Z21.11.2 decorative type unvented room heater.
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.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Safety Information ............................................... 3
Local Codes ........................................................ 4
Product Identification ........................................... 5
Unpacking ........................................................... 5
Product Features ................................................. 5
Locating Firebox .................................................. 6
Product Specifications ......................................... 6
Air For Combustion and Ventilation ..................... 7
Installation ........................................................... 9
Operating Fireplace ........................................... 19
Inspecting Burners ........................................... 24
Cleaning and Maintenance ................................ 25
Wiring Diagram .................................................. 26
Specifications .................................................... 26
Replacement Parts ............................................ 26
Technical S
Service Hints ..................................................... 26
Troubleshooting ................................................. 27
Accessories ....................................................... 31
Illustrated Parts Breakdown and Parts List ....... 32
Warranty Information ...........................
ervice .............................................. 26
Back Cover


WARNING: This product con­tains 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 be f o r e tr y i n g to assemb l e , operate or service this heater. Improper use of this heater 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 Monoxid e Poiso nin g: Early signs of
carbon monoxide poisoning resemble the flu, with headaches, 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 warnings. Keep this manual for reference. It is your guide to safe and proper operation of 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 objects on the heater.
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. Fire­place will remain hot for a time after shutdown. Allow surfaces to cool before touching.
Carefully supervise young chil­dren when they are in the room with fireplace. When using the optional hand-held remote ac cessory, keep selector switch in the OFF position to prevent children from turning on burners with remote.
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.
You must operate this fireplace with the fireplace screen and hood in place. Make sure fire­place screen and hood are in place before running heater.
Keep the appliance area clear and free from combustible ma­terials, gasoline and other flam­mable vapors and liquids.
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) in­side 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. To prevent the creation of soot, follow the instructions in Cleaning and maintenance page 25.
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. 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 enough fresh air is not available. See Air for Combustion and Ventilation, page 7. If fireplace keeps shutting off, see Troubleshooting, page 27.
10. Do not run fireplace
• where flammable liquids or vapors are used
or stored
• under dusty conditions
11. Do not use this fireplace to cook food or burn paper or other objects.
12. Do not use fireplace if any part has been exposed to or under water. Immediately call a qualified service technician to inspect the fireplace and to replace any part of the control system and any gas control which has been under water.
13. Do not operate fireplace if any log is broken. Do not operate fireplace if a log is chipped (dime-sized or larger).
14. Turn fireplace off 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.
To prevent performance problems in propane/LP units, do not use propane/LP fuel tanks of less than 100 lbs. capacity (propane/LP units only).
Provide adequate clear ances around a ir openings.


Install and use fireplace with care. Follow all local codes. In the absence of local codes, use the lat­est edition of The National Fuel Gas Code ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
National Fire Protection Association, Inc.
Note: Where listed vented decorative logs are required, thermostat operation is not permitted.
State of Massachusetts: The installa­tion must be made by a licensed plumber or gas fitt er in the Common we alth of
Sel lers 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 Commonwealth of Massachusetts.
1430 Broadway
New York, NY 10018
Batterymarch Park
Quincy, MA 02269
Log Set
Piezo Ignitor
Optional Remote Control
Figure 1 - Log Base Assembly
Top Louver Assembly
Fireplace Hood
Screen Assembly
Figure 2 - Fireplace (VSGF36NR Shown)
Front Burner
(VSGF36NR Shown)
Bottom Louver Assembly
Rear Burner
Base Assembly
Top Outer Casing


CAUTION: Do not remove the data plates attached to the heater base assembly. The data plates contain
1. With utility knife, cut the carton all the way around above the staples on the bottom tray. Lift the carton off the heater. Remove packing. Note: The hood is located on top of fireplace in a carton.
Locate one screw above top left corner of the
2. fireplace screen. Remove and discard screw. Lift fireplace screen up and pull out to remove.
3. Remove protective packaging applied to logs, log base assembly and fireplace.
4. Check all items for any shipping damage. If damaged, promptly inform dealer where you bought fireplace.


This vent-free fireplace is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by both realistic flames and glowing embers. When used without the blower, the fireplace requires no electricity making it ideal for emergency backup heat.
This fireplace has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/ pilot is a required feature for vent-free room heat­ers. The ODS/pilot system shuts off the fireplace if there is not enough fresh air.
This fireplace has a piezo ignitor. This system requires no matches, batteries or other sources to light fireplace.
There are four optional remote controls (not included) that can be purchased separately for this log heater:
• wall switch
• wall thermostat
• hand-held ON/OFF remote
• hand-held thermostat remote
See Accessories, page 31.


Plan where you will install the firebox. This will save time and money later when you install the firebox. Before installation, consider the following:
1. Where the firebox will be located. Allow for wall and ceiling clearances (see Installation Clear ances, page 10).
2. Everything needed to complete installation.
3. These models CANNOT be installed in a bedroom unless the maximum Btu rating of the installed vent-free log set is less than 10,000 Btu/hr.
4. Proper air for combustion and ventilation (page 7).


Left Side View
Firebox Top View
Right Side View
Front View
Figure 3 - Firebox Dimensions
WARNING: This firebox shall not be installed in a confined space or unusually tight con­struction unless provisions are provided for adequate combus­tion 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, fireboxes, 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.
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 7 through 9 will help you classify your space and provide adequate ventilation.
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 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 9.
If your home does not meet all of the three criteria above, proceed to Determining
Fresh-Air Flow for Heater Location, page 8.
Confined and Unconfined Space
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 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 m
per kw) of the aggregate input rating of all appliances installed in that space. Rooms com municating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.
­* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.
kg per pa-sec-m2) or
per kw) of the aggregate input
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 22 ft. (length) x 18 ft.
(width) x 8 ft. (ceiling height) = 3168 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: 3168 cu. ft. (volume of space) x 20 =
63,360 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free fireplace ___________
Gas water heater* ___________
Gas furnace ___________
Vented gas heater ___________
Gas fireplace logs ___________
Other gas appliances* + __________
Total = __________
* Do not include direct-vent gas appliances. Di
rect-vent draws combustion air from the outdoors and vents to the outdoors.
Gas water heater
Vent-free fireplace + ________
Total = ________
__________ Btu/Hr 39,000
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_________ Example: 63,360 Btu/Hr (maximum the space
79,000 Btu/Hr (actual amount of
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, page 9.
B. Vent room directly to the outdoors. See Ventila
tion Air From Outdoors, page 9.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr
size makes room unconfined.
Btu/Hr (maximum the space can support)
Btu/Hr (actual amount of Btu/Hr used)
can support)
Btu/Hr used)
If the actual Btu/Hr used is less than the maxi­mum Btu/Hr the space can support,
the space is
an unconfined space. You will need no additional fresh air ventilation.
WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and 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.
Remove Door into Adjoining
Room, Option
Ventilation Grills
Into Adjoining Room,
ntilation Grills
Into Adjoining
Option 1
Outlet Air
Inlet Air
Inlet Air
Crawl Space
To Attic
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 4). You
can also remove door into adjoining room (see
option 3, Figure 3). 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.
Figure 5 - Ventilation Air from Outdoors


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.
Figure 4 - Ventilation Air from Inside
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.
WARNING: A qualified service person must install fireplace. Follow all local codes.
WARNING: Never install the fireplace
• in a bedroom or 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 heater
• in high traffic areas
• in windy or drafty areas
CAUTION: This fireplace cre­ates 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 heater where impurities (such as, but not limited, to tobacco smoke, aromatic candles, clean­ing fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors.
Note: Your fireplace is designed to be used in zero clearance installations. Wall or framing material can be placed directly against any exterior surface on the rear, sides or top 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 11.
IMPORTANT: Vent-free heaters 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
IMPORTANT: Make sure the fireplace is level. If fireplace is not level, log set will not work properly.
Use the correct gas type (natural or propane/LP) for your fireplace. If your gas supply is not cor­rect, do not install fireplace. Call dealer where you bought fireplace for proper type fireplace.
, page 7.
WARNIN G: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling and adjoining wall.
Carefully follow the instructions below. This will ensure safe installation.
Minimum Wall and Ceiling Clearances (see Figure 6)
A. Clearances from the side of the fireplace
cabinet to any combustible material and wall should follow diagram in Figure 6.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and protrudes 3 1/2" from the wall. This combus­tible material must be 4" from the side of the fireplace cabinet (see Figure 6).
B. Clearances from the top of the firebox open
ing to the ceiling should not be less than 42 inches.
C. When the firebox is installed on carpeting or
other combustible material, other than wood flooring, the firebox should be installed on a metal or wood panel extending the full width
and depth of the enclosure.
D. Clearances from the bottom of firebox to the
floor is 0 inches.
­These fireboxes can be installed as freestanding
units against a wall with the approved, optional cabinet mantels (see built-in unit. The clearances are the same for either installation method.
Accessories, page 31) or as a
CAUTION: Do not install the firebox directly on carpet or vinyl.
WARNING: This appliance is equipped for (natural or pro­pane/LP) gas. Field conversion is not permitted.
*Minimum 16 inches from Side Wall
Figure 6 - Minimum Clearance for
Combustible to Wall
Supplied Firebox Hood Must Be Used at All Times
Wire-mesh Screen
Noncombustible Material May Project Off this Surface above the Firebox Hood
Mantel Shelf Note: Any portion of the mantel shelf must NOT extend beyond this profile.
Note: All vertical measurements are from top of fireplace hood opening to bottom of mantel shelf. These minimum clearances replace any other recommended clearances supplied with your ANSI Z21.11.2 approved gas logs.
ll board or facing material (above firebox) may be of combustible material, including decorative mantel ornaments or other similar projec­tions off of the facing material.
Framing Material
Mantel Clearances for Built-In Installation
If placing custom mantel above built-in firebox, you must meet the minimum allowable clearance between mantel shelf and top of firebox opening shown in Figure 7. These are the minimum allowable mantel clearances for a safe installation. Use larger clearances wherever possible to minimize the heat­ing of objects and materials placed on the mantel.
CAUTION: Do not allow the vent-free gas log heater to touch or extend beyond the fireplace screen.
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.
NOTICE: If your installation does not meet the minimum clearances shown, you must do one of the following:
• raise the mantel to an accept
able height
• remove the mantel
Built-in installation of this firebox involves install­ing firebox into a framed-in enclosure. This makes the front of firebox flush with wall. Optional brass trim accessories are available (see Accessories, page 31). The brass trim will extend past sides of firebox approximately 1/2 inch. This will cover the rough edges of the wall opening. If installing a mantel above the firebox, you must follow the clearances shown in Figure 6, page 10. Follow the instructions below to install the firebox in this manner.
Figure 7 - Minimum Mantel Clearances for Built-In Installation
(Inside to Inside)
1. Frame in rough opening. The firebox framing should be constructed of 2 x 4 lumber or heavier. Use dimensions in Table 1 and rough opening layout in Figure 8. Adjust framing so that firebox flushes with finished wall surface. If installing in a corner, use dimensions in Figures 8 and 9 for rough opening.
Install gas piping to firebox location. See Installing
Gas Piping to Fireplace Location on page 13 and Connecting Fireplace to Gas Supply, page 15.
IMPORTANT: If installing blower accessory (circulating models with louvers only), see Hard-
Wiring Firebox
3. Carefully set firebox in front of rough open ing with back of firebox inside wall opening. IMPORTANT: If installing a perimeter trim kit, see instructions included with trim acces sory. You must install shoulder screws from trim kit now.
4. Carefully insert firebox into rough opening.
5. Attach firebox to wall studs using nails or wood screws through holes in nailing flange (see Figure 10).
6. If using an optional perimeter trim kit, install the trim after final finishing and/or painting of wall. See instructions included with trim accessory for attaching trim.
7. Install and properly test gas log heater. Fol low installation instructions included with the vent-free gas log heater that is being installed.
IMPORTANT: When finishing your firebox, combustible materials such as wall board, gypsum 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.
, page 18.
WARNING: Use only noncom­bustible mortar or adhesives when overlapping the front fac­ing with noncombustible facing material.
Rough Opening Dimensions for
Built-in Installation
Front Width (Inside to Depth Model Inside) Height (Minimum)
36" 41
Figure 8 - Rough Opening for Installing
Figure 9 - Rough Opening for Installing
Nails or Wood Screws
/2" 40 1/2" 20 3/4"
in Wall
in Corner Wall
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.
WARNING: Do not allow non­combustible materials to cover any necessary openings like louvered slots.
Figure 10 - Attaching Firebox to Wall
Nailing Flange
+ 28 hidden pages