Desa VGL30PRA, VGL18PRA, VGL18NRA, VGL24NRA, VGL24PRA User Manual
...
UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
Also Design-Certified As Vented Decorative Appliances When
Not Used With Hand-Held Thermostat Remote
MODELS
VGL18NRA, VGL18PRA
VGL24NRA, VGL24PRA
VGL30NRA, VGL30PRA
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.
— 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.
Save this manual for future reference.
For more information, visit www.desatech.com
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 appliance is for installation only in
a solid-fuel burning masonry or UL127 factory-built
fireplace or in a listed ventless firebox enclosure. It is
design-certified for these installations in accordance
with ANSI Z21.11.2. Exception: Do not install this appliance in a factory-built fireplace that includes instructions
stating it has not been tested or should not be used with
unvented gas logs.
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 6 of this manual.
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 indi
cated 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
TABLE OF CONTENTS
Safety Information ............................................... 3
Product Identification ...........................................
Local Codes ........................................................ 5
Unpacking ........................................................... 5
Product Features ................................................. 5
Remote Control Accessories ...............................
Air For Combustion and Ventilation .....................
Installation ........................................................... 8
Operating heater ............................................... 19
Inspecting Burners ............................................ 22
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Cleaning and Maintenance ................................ 23
Troubleshooting .................................................
5
Wiring Diagram .................................................. 28
Service Hints ..................................................... 28
Technical Service ..............................................
5
Replacement Parts ............................................ 28
Specifications ....................................................
6
Accessories ....................................................... 29
Illustrated Parts Breakdown and Parts List ....... 30
Warranty Information ...........................
Back Cover
112882-01D
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24
28
28
SAFETY INFORMATION
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 fore tr ying to assemb le,
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 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 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.
WARNING: Do not use a blower insert, heat exchanger insert
or other accessory not approved
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
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objects on the heater.
Heater base assembly becomes
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater
will remain hot for a time after
shutdown. Allow surface to cool
before touching.
Carefully supervise young chil-
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dren when they are in the room
with heater. When using the handheld remote accessory, keep selector switch in the OFF position
to prevent children from turning
on burners with remote.
Keep the appliance area clear
and free from combustible ma
terials, gasoline and other flammable vapors and liquids.
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SAFETY INFORMATION
Continued
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. To prevent performance problems, the use of
a propane/LP fuel tank of less than 100 lb.
capacity is not recommended (propane/LP
units only).
4. 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
5. This heater shall not be installed in a bedroom
or bathroom unless installed as a vented appli
ance (see Installing Damper Clamp Accessory
for Vented Operation,
6. Before installing in a solid fuel burning fire
place, the chimney flue and firebox must be
cleaned of soot, creosote, ashes and loose paint
by a qualified chimney cleaner. Creosote will
ignite if highly heated. A dirty chimney flue
may create and distribute soot within the house.
Inspect chimney flue for damage. If damaged,
repair flue before operating heater.
7. Do not burn solid-fuel in a masonry or UL127
factory-built fireplace in which a vent-free
room heater is installed.
8. If fireplace has glass doors, never operate this
heater with glass doors closed. If you operate
heater with doors closed, heat buildup inside
fireplace will cause glass to burst. Make sure
there are no obstructions across openings of
fireplace.
9. This log heater is designed to be smokeless. If
logs ever appear to smoke, turn off heater and
call a qualified service person. Note: During
initial operation, slight smoking may occur due
to log curing and heater burning manufacturing
residues.
10. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 23.
page 12).
11. 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.
12. This heater needs fresh, outside air ventilation
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to run properly. This heater has an Oxygen De
pletion 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 6. If heater keeps shutting
off, see Troubleshooting, page 24.
13. Do not run heater
• where flammable liquids or vapors are used
or stored
• under dusty conditions
14. Do not use this heater to cook food or burn
paper or other objects.
15. Do not use heater if any part has been exposed
to or 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.
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16. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dimesized or larger).
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17. Turn heater off and let cool before servicing,
installing or repairing. Make sure the remote
selector switch is in the OFF position. Only a
qualified service person should install, service
or repair heater.
18. Make sure the remote selector switch is in the
OFF position when you are away from home
for long periods of time.
19. This heater must not be connected to any
external electrical source.
20. Operating heater above elevations of 4,500
feet may cause pilot outage.
21. Prov ide adeq ua te clearan ce s around air
openings.
State of Massachusetts: The installa
tion must be made by a licensed plumber
or gas fitt er in the Common we alth of
Massachusetts.
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.
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112882-01D
Left Top Log
Left Bottom Log
PRODUCT IDENTIFICATION
Rear Log
Right Crossover Log
Electronic
Ignitor Button
Ember Bed Burner
Optional Remote
Control
Flame Adjustment
Knob
Figure 1 - Vent-Free Gas Log Heater
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/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
Note: Where listed vented decorative logs are
required, thermostat operation is not permitted.
UNPACKING
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
1. Remove logs and heater base assembly from
carton. Note: Do not pick up heater base assembly by back burner. This could damage
heater.
2. Remove all protective packaging applied to
logs and heater for shipment.
3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought heater.
Right Top Log
Right
Bottom Log
Remote Sensor
with Switch
Control Knob
PRODUCT FEATURES
OPERATION
This heater is clean burning. It requires no outside
venting. There is no heat loss out a vent or up a chimney. Heat is generated by realistic dancing, yellow
flames. This heater is designed for vent-free operation with flue damper closed. It has been tested and
approved to ANSI Z21.11.2 standard for unvented
heaters. This heater may also be operated as a vented
decorative (ANSI Z21.60) product by opening flue
damper (non-thermostat models only).
SAFETY PILOT
This heater 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 shuts off the heater if there
is not enough fresh air.
ELECTRONIC IGNITION SYSTEM
This heater has an electronic ignitor. This system requires no matches or other sources to light heater.
REMOTE CONTROL
ACCESSORIES
There are two optional remote controls that can be
purchased separately for this log heater:
• hand-held ON/OFF remote
• hand-held thermostat remote
See Accessories, page 29.
The hand-held thermostat may not be used where
vented decorative listing is required.
112882-01D 5
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AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater 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, 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 6 through 8 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
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 8.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Heater Location.
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Confined Space 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 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.
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* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.
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kg per pa-sec-m2) or less
3
per kw) of the aggregate input
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
fireplace plus any adjoining rooms with doorless 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)
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,
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112882-01D
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ve
ntilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
AIR FOR COMBUSTION
AND VENTILATION
Continued
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2,560 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: 2,560 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
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.
Example:
Gas water heater
Vent-free fireplace + ________
Total = ________
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)
79,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a confined space because
the actual Btu/Hr used is more than the maximum
Btu/Hr the space can support. You must provide ad
ditional 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, page 8.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr
size makes room unconfined.
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
40,000
39,000
79,000
Btu/Hr
Btu/Hr
Btu/Hr
Btu/Hr
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 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.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining
unconfined space, you must provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor on the wall connecting
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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.
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Figure 2 - Ventilation Air from Inside
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Building
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Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air
Ventilated
Crawl Space
To
Crawl
Space
To Attic
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 thermostatcontrolled power vent. Heated air entering the attic
will activate the power vent.
Figure 3 - Ventilation Air from Outdoors
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.
NOTICE: State or local codes may
only allow operation of this appli
ance in a vented configuration.
Check your state or local codes.
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WARNING: A qualified service person must install heater.
Follow all local codes.
WARNING: If optional handheld remote accessory has been
installed, make sure the selector
switch is in the OFF position
before installing heater.
WARNING: Before installing
in a solid fuel burning fireplace,
the chimney flue and firebox
must be cleaned of soot, creosote, ashes and loose paint by a
qualified chimney cleaner. Creosote will ignite if highly heated.
A dirty chimney flue may create
and distribute soot within the
house. Inspect chimney flue for
damage. If damaged, repair flue
before operating heater.
WARNING: Seal any fresh
air vents or ash clean-out doors
located on floor or wall of fireplace. If not, drafting may cause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney flue damper.
WARNING: Never install the
heater
• in a bedroom or bathroom
unless installed as a vented
appliance, see page 10.
• 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
112882-01D
INSTALLATION
Continued
CAUTION: This heater creates warm air currents. These
currents move heat to wall surfaces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as, but
not limited to, tobacco smoke,
aromatic candles, cleaning flu
ids, oil or kerosene lamps, etc.) in
the air exist, may discolor walls
or cause odors.
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is beneficial, installing
heater in rooms without enough ventilation air may
cause mildew to form from too much moisture.
See Air for Combustion and Ventilation, pages
6 through 8.
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 heater. Call dealer where you bought
heater for proper type heater.
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LOG SIZING REQUIREMENTS
Log Front Rear
Size Height Depth Width Width*
18",24", 17" 13" 28" 21"
30"
Minimum Firebox Size With Blower
18",24", 17" 14" 34" 22
30"
*Measured at 13" depth
Carefully follow the instructions below. This will
ensure safe installation into a masonry, UL127-listed
manufactured fireplace or listed vent-free firebox.
Minimum Clearances for Side Combustible
Material, Side Wall and Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 4.
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 opening (see Figure 4).
Note: When installing your gas logs into
a man uf actur ed fireb ox , foll ow fir ebox
manufacturerʼs instructions for minimum
clearances to combustible materials.
B.
Clearances from the top of the fireplace opening
to the ceiling should not be less than 42 inches.
Minimum Firebox Size
3
/8"
WARNING: This appliance
is equipped for (natural or propane/LP) gas. Field conversion
Example
is not permitted.
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)
WARNING: Maintain the
minimum clearances. If you
can, provide greater clearances
*Minimum 16 inches from Side Wall
Figure 4 - Minimum Clearance for Side
Combustible Material, Side Wall and
Ceiling
*
from floor, ceiling and adjoining
wall.
NOTICE: Manual control heaters
may be used as a vented product.
MINIMUM FIREPLACE
CLEARANCE TO
COMBUSTIBLE MATERIALS
Log Size Side Wall Ceiling
18", 24", 30" 16" 42"
If so, you must always run heater
with chimney flue damper open. If
running heater with damper open,
noncombustible material above fireplace opening is not needed. Go to
Installing Damper Clamp Accessory
for Vented Operation, page 12.
112882-01D 9
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Heat Resistant
Material
(A)
INSTALLATION
Continued
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the information below.
You must have noncombustible material(s) above the
fireplace opening. Noncombustible materials (such as
slate, marble, tile, etc.) must be at least 1/2 inch thick.
With sheet metal, you must have noncombustible
material behind it. Noncombustible material must
extend at least 8" up (for all models). If noncombus
tible material is less than 12", you must install the
fireplace hood accessory (24" and 30" models only).
See Figure 5 for minimum clearances.
IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
flue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation,
Noncombustible Requirements
Material for Safe
Distance (A) Installation
12" or more Noncombustible
Between 8" and 12" Install fireplace hood
Less than 8" Noncombustible
page 12.
material okay.
accessory (GA6050,
GA6052 or GA6053,
see Accessories,
page 29).
material must be
extended to at least
8". See Between 8"
and 12", above. If
you cannot extend
material, you must
operate heater with
flue damper open.
If Using Mantel
You must have noncombustible material(s) above
the fireplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2 inch thick. With sheet metal, you must have
noncombustible material behind it. Noncombustible
material must extend at least 8 inches up (for all
models). If noncombustible material is less than
12", you must install the fireplace hood accessory
(24" and 30" models only). Even if noncombustible
material is more than 12", you may need the hood
accessory to deflect heat away from your mantel
shelf. See Figure 5 and Figures 6 and 7 on page 11
for minimum clearances.
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IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
flue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation,
page 12.
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between fireplace opening and mantel shelf. If
you do not meet the clearances listed below, you
will need a hood.
Determining Minimum Mantel Clearances
If you meet minimum clearance between mantel
shelf and top of fireplace opening, a hood is not
required (see Figure 6, page 11).
Determining Minimum Mantel Clearances
When Using a Hood
If minimum clearances in Figure 6, page 11 are not
met, you must have a hood. When using a hood
there are still certain minimum mantel clearances
required. Follow minimum clearances shown in
Figure 7, page 11 when using hood.
NOTICE: Surface temperatures
of adjacent walls and mantels be
come hot during operation. Walls
and mantels above the firebox
may become hot to the touch.
If installed properly, these tem
peratures meet the requirements
of the national product standard.
Follow all minimum clearances
shown in this manual.
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Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
10
www.desatech.com
112882-01D
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