Vanguard Vi33NRB Quick start guide

For more information, visit www.desatech.com
WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other ammable
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 re
department.
— Installation and service must be performed by a quali-
ed installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
UNVENTED (VENT-FREE) GAS FIREPLACE INSERT
OWNER’S OPERATION AND INSTALLATION MANUAL
VI33NRB AND VI33PRB
REMOTE READY GAS FIREPLACE INSERT
®
Shown with GS38 Surround Kit and
G8010 Brick Liner Accessories

www.desatech.com 113195-01J2
SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Identication........................................... 5
Remote Control Accessories ............................... 6
Product Features................................................. 6
Air For Combustion and Ventilation ..................... 6
Installation ........................................................... 9
Operation........................................................... 19
Inspecting Burners............................................. 22
Cleaning and Maintenance................................ 23
Wiring Diagrams................................................ 24
Troubleshooting................................................. 25
Specications .................................................... 29
Replacement Parts............................................ 29
Technical Service............................................... 29
Service Hints ..................................................... 29
Parts .................................................................. 30
Accessories ....................................................... 34
Warranty ..............................................Back Cover
WARNING: Improper
installation, adjustment,
alteration, service or
maintenance can cause
injury or property dam-
age. Refer to this manual
for correct installation
and operational proce-
dures. For assistance or
additional information
consult a qualified in-
staller, service agency or
the gas supplier.
WARNING: This is an
unvented gas-red heat-
er. 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 Ven-
tilation section on page 6
of this manual.
This appliance may be in-
stalled in an aftermarket,*
permanently located,
manufactured (mobile)
home, where not prohib-
ited 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
WARNING: This product
contains and/or generates
chemicals known to the state
of California to cause cancer or
birth defects or other reproduc-
tive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate or service this replace.
Improper use of this replace
can cause serious injury or
death from burns, re, explo-
sion, electrical shock and carbon
monoxide poisoning.

www.desatech.com
113195-01J 3
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness or nausea. If
you have these signs, the replace may not
be working properly. Get fresh air at once!
Have replace serviced. Some people are
more affected by carbon monoxide than oth-
ers. These include pregnant women, people
with heart or lung disease or anemia, those
under the inuence of alcohol and those at
high altitudes.
Natural and Propane/LP Gas: Natural and
Propane/LP gases are odorless. An odor-
making agent is added to these gases. 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 replace.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not use a blow-
er insert, heat exchanger insert
or other accessory not approved
for use with this replace.
WARNING: Do not allow fans
to blow directly into the replace
insert. Avoid any drafts that alter
burner ame patterns. Ceiling fans
can create drafts that alter burner
ame patterns. Altered burner pat-
terns can cause sooting.
WARNING: Any outside air
ducts and/or ash dumps in the
replace must be permanently
closed before installing replace
insert.
SAFETY
Continued
WARNING: Before installing
in a solid fuel burning replace,
the chimney ue and replace
must be cleaned of soot, creo-
sote, ashes and loose paint by a
qualied chimney cleaner.
Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects on the heater.
Fireplace insert front and screen
become very hot when running
replace insert. Keep children
and adults away from hot sur-
faces to avoid burns or cloth-
ing ignition. Fireplace insert
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 replace. When using the
hand-held remote accessory,
keep selector switch in the OFF
position to prevent children from
turning on burners with remote.
You must operate this replace
insert with the replace insert
screen and hood in place. Make
sure replace insert screen and
hood are in place before running
replace insert.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline and other am-
mable vapors and liquids.

www.desatech.com 113195-01J4
SAFETY
Continued
1. This appliance is only for use with the
type of gas indicated on 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
neighbor’s phone. Follow gas supplier’s
instructions
• if you cannot reach your gas supplier,
call the re department
4. This replace insert shall not be installed
in a bedroom or bathroom.
5. Do not use this replace insert as a wood-
burning replace. Use only logs provided
with replace insert.
6. Do not add extra logs or ornaments such
as pine cones, vermiculite or rock wool.
Using these added items can cause soot-
ing. Do not add lava rock around base.
Rock and debris could fall into control
area of replace insert.
7. This replace insert is designed to be
smokeless. If logs ever appear to smoke,
turn off replace insert and call a qualied
service person.
Note: During initial operation, slight smok-
ing could occur due to log curing and
burning of manufacturing residues.
8. To prevent creation of soot, follow the
instructions in Cleaning and Maintenance,
page 23.
9. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off.
If heated, vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
10. This fireplace insert needs fresh air
ventilation to run properly. This replace
insert has an Oxygen Depletion Sensing
(ODS) safety shutoff system. The ODS
shuts down the fireplace insert if not
enough fresh air is available. See Air for
Combustion and Ventilation,page 6. If
replace insert keeps shutting off, see
Troubleshooting, page 25.
11. Do not run replace insert
• where ammable liquids or vapors are
used or stored
• under dusty conditions
12. Do not use this replace insert to cook
food or burn paper or other objects.
13. Do not use replace insert if any part has
been exposed to or under water. Imme-
diately call a qualied service technician
to inspect replace insert and to replace
any part of the control system and any gas
control which has been under water.
14. Do not operate replace insert if any log
is broken. Do not operate replace insert
if a log is chipped (dime-sized or larger).
15. Turn replace insert off and let cool before
servicing. Only a qualied service person
should service and repair replace insert.
16. Operating replace insert above elevations
of 4,500 feet could cause pilot outage.
17. To prevent performance problems with
propane/LP units, do not use propane/
LP fuel tanks of less than 100 lb. capacity
(propane/LP units only).
18. Provide adequate clearances around air
openings.
19. Installer must mechanically attach mark-
ing supplied with vent-free replace insert
to the inside of rebox of solid-fuel burn-
ing replace or listed rebox enclosure
into which unvented replace insert is
installed.
20. Trim panels and surrounds must not seal
ventilation openings in replace.
21. Cutting any sheet metal parts of the solid-fu-
el burning replace or listed ventless rebox
enclosure in which the vent-free replace
insert is to be installed is prohibited.
22. If factory-built replace has no gas ac-
cess hole(s) provided, an access hole of
1.5" (37.5 mm) diameter or less may be
drilled through the lower sides or bottom
of rebox in a proper manner. This access
hole must be plugged with noncombustible
insulation after the gas supply line has
been installed.
23. Refractory, glass doors, screen rails,
screen mesh and solid-fuel log grates
(if applicable) can be removed from the
replace before installing the unvented
replace insert.
24. Smoke shelves, shields and bafes may
be removed if attached by mechanical
fasteners.

www.desatech.com
113195-01J 5
LOCAL CODES
PRODUCT IDENTIFICATION
Figure 1 - Log Base Assembly
Figure 2 - Fireplace Insert
Top Louver Assembly
Firebox
Hood
Bottom Louver
Assembly
Screen
Assembly
Firebox
Support
Three Piece
Log Set
Remote Selector
Switch (Optional)
Piezo
Ignitor
Optional
Remote
Control
Control
Knobs
Top Outer
Casing
Blower
Assembly
Gas Line
Access
Install and use replace insert with care. Fol-
low 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.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
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-red 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.
UNPACKING
CAUTION: Do not remove the
warning and instruction labels
attached to the heater base as-
sembly. These markings contain
important warranty and safety
information.
1. With utility knife, cut carton all the way
around above staples on bottom tray. Lift
carton off of heater. Remove packing.
Note: Hood is located in packing on right
hand side of heater front. Lift heater off
bottom tray.
2. Locate two screws above top corners
of replace insert screen. Remove and
discard these screws. Lift replace insert
screen up and pull out to remove.
3. Remove protective packaging applied
to logs, log base assembly and replace
insert.
4. Remove replace insert hood from carton
insert.
5. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you bought replace insert.

www.desatech.com 113195-01J6
REMOTE CONTROL ACCESSORIES
PRODUCT FEATURES
There are four optional remote controls
that can be purchased separately for this
replace insert:
• wall switch
• wall thermostat
OPERATION
This vent-free replace insert is clean burn-
ing. It requires no outside venting. There is no
heat loss out a vent or up a chimney. Heat is
generated by both realistic ames and glowing
embers. When used without the blower, the
replace insert requires no electricity making
it ideal for emergency backup heat.
SAFETY DEVICE
This replace insert has a pilot with an Oxy-
gen Depletion Sensing (ODS) safety shutoff
system. The ODS/pilot is a required feature
for vent-free room heaters. The ODS system
shuts off the replace insert if there is not
enough fresh air.
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a room or
space unless the required vol-
ume of indoor combustion air
is provided by the method de-
scribed in the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code, or
applicable local codes. Read the
following instructions to insure
proper fresh air for this and
other fuel-burning appliances
in your home.
Today’s homes are built more energy efcient
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. Dur-
ing heating months, home owners want their
homes as airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
Exhaust fans, replaces, 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, Air
for Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned 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 un-
usually tight construction, you must provide
additional fresh air.
Unusually tight construction is dened as
construction where:
PIEzO IGNITION SYSTEM
This replace insert has a piezo ignitor. This
system requires no matches, batteries or
other sources to light replace insert.
BLOWER ASSEMBLY
This replace insert is equipped with a blower
assembly. The blower operates thermostati-
cally and has a variable control. The blower
circulates heated air from the replace insert
into the room. Use of blower is optional.
• hand-held ON/OFF remote
• hand-held thermostat remote
See Accessories, page 34.

www.desatech.com
113195-01J 7
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 oors, 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.
Conned and Unconned Space
The National Fuel Gas Code ANSI Z223.1/
NFPA 54 denes a conned 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 ag-
gregate input rating of all appliances installed in
that space and an unconned 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 ag-
gregate 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ned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Conned or
Unconned Space
Use this work sheet to determine if you have
a conned or unconned space.
Space: Includes the room in which you will install
replace 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)
AIR FOR COMBUSTION AND VENTILATION
Continued
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 replace __________ Btu/Hr
Gas water heater* __________ Btu/Hr
Gas furnace __________ Btu/Hr
Vented gas heater __________ Btu/Hr
Gas replace logs __________ Btu/Hr
Other gas appliances* + _________ Btu/Hr
Tota = _________ Btu/Hr
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater __________ Btu/Hr
Vent-free replace + _________ 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: 63,360 Btu/Hr (maximum the
space can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the above example is a conned
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup-
port. You must provide additional fresh air. Your
options are as follows:
A. Rework worksheet, adding the space of
an adjoining room. If the extra space pro-
vides an unconned space, remove door
to adjoining room or add ventilation grills
between rooms. See Ventilation Air From
Inside Building, page 8.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 8.
C. Install a lower Btu/Hr replace, if lower Btu/
Hr size makes room unconned.
40,000
33,000
73,000

www.desatech.com 113195-01J8
AIR FOR COMBUSTION AND VENTILATION
Continued
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the oor. 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, 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. Any outside
air ducts and/or ash dumps in the replace shall
be permanently closed at the time of appliance
installation.
Figure 4 - Ventilation Air from Outdoors
Outlet
Air
V e ntilated
Attic
Outlet
Air
Inlet
Air
Inlet Air V e ntilated
Crawl Space
T o
Crawl
Space
T o Attic
Figure 3 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option
3
V e ntilation Grills
Into Adjoining Room,
Option 2
V e ntilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
WARNING: If the area in
which the heater may be oper-
ated does not meet the required
volume for indoor combustion
air, combustion and ventilation
air shall be provided by one of
the methods described in the
National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the Internation-
al Fuel Gas Code, or applicable
local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 3). You can also remove door
into adjoining room (see option 3, Figure 3).
Follow the National Fuel Gas Code ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.

www.desatech.com
113195-01J 9
WARNING: Before installing
in a solid fuel burning replace,
the chimney ue and rebox
must be cleaned of soot, creo-
sote, ashes and loose paint by a
qualied chimney cleaner.
Note: Your Vanguard fireplace insert is
designed to be used in zero clearance in-
stallations. Wall or framing material can be
placed directly against any exterior surface
on rear, sides or top of your replace insert,
except where standoff spacers are integrally
attached. If standoff spacers are attached
to your insert, these spacers can be placed
directly against wall or framing materials.
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
replace in rooms without enough ventilation
air may cause mildew to form from too much
moisture. See Air for Combustion and Ventila-
tion, page 6.
IMPORTANT: Make sure the replace insert
is level. If replace insert is not level, log set
will not work properly.
CHECK GAS TYPE
Use the correct gas type (natural or pro-
pane/LP) for your unit. If your gas supply
is not correct, do not install replace insert.
Call dealer where you bought replace in-
sert for proper type replace insert.
WARNING: This appliance is
equipped for either natural gas
or propane/LP gas but not both.
Gas type is indicated on the rat-
ing plate. Field conversion is not
permitted.
ELECTRICAL HOOKUP
(Blower Accessory)
This replace insert includes a blower assem-
bly with an electrical cord. The electrical cord
is ve feet in length. You must locate replace
insert within reach of a 120 volt grounded elec-
trical outlet. If not, install and properly ground
GA3555, three-prong 120 volt electrical outlet,
in replace insert. Follow instructions included
in kit (see Accessories, page 34).
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 qualied ser-
vice person must install replace
insert. Follow all local codes.
WARNING: Make sure the
selector switch is in the OFF po-
sition before installing heater.
WARNING: Never install the
replace insert
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, cloth-
ing or other ammable objects
are less than 36" from front and
42" from top of replace insert.
For side clearances see Figure
11, page 11
• in high trafc areas
• in windy or drafty areas
CAUTION: This replace insert
creates warm air currents. These
currentsmoveheat towallsurfaces
next to replace insert. Installing
replace insert next to vinyl or
cloth wall coverings or operating
replace insert where impurities
(such as, but not limited to, tobacco
smoke, aromatic candles, cleaning
uids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls
or cause odors.

www.desatech.com 113195-01J10
INSTALLING SURROUND KIT (GS38
OR GS43)
CAUTION: Close masonry
replace damper securely be-
fore installing replace insert. If
chimney does not have a damp-
er, block or cap top of chimney.
Failure to cap an open chimney
couldcausedraftsthatcanaffect
the heater’s performance and
increase surface temperatures.
CAUTION: A GS38 or GS43
surround kit accessory must
be installed on this replace
insert before installing into
your masonry replace or wall
opening.
Note: Use the accessory which best covers
the existing masonry replace opening or
wall opening.
• Model GS38 Surround Kit (for use with
replaces with an opening smaller than
30" H and 38" W).
• Model GS43 Surround Kit (for use with
replaces with an opening 30" to 36 3/4" H
and 38 to 43" W).
1. Using a 5/16" nut driver, remove two
shipping screws and screen (see Figure
5). Discard these screws. Remove 5/16"
screen mounting shoulder screws (do not
discard).
2. Remove log packaging from firebox
cavity.
3. Align holes in left surround side panel with
screen mounting screw holes. Replace
5/16" screen mounting shoulder screws
removed in step 1 (see Figure 6). Do not
tighten. Install Phillips screw in bottom
(see Figure 6). Repeat for right side.
4. Using Phillips screwdriver, remove 4 screws
attaching top louver (see Figure 7).
INSTALLATION
Continued
Figure 5 - Removing Screws and Screen
Shipping Screw
(DISCARD)
Screen Mounting Shoulder
Screw (4) (DO NOT DISCARD)
Shipping Screw
(DISCARD)
Figure 6 - Attaching Left Surround Side
Panel
Figure 7 - Removing Louver
Surround Side
Screen
Mounting
Shoulder
Screws
(5/16”)
Phillips
Screw
Top Louver
Phillips
Screws

www.desatech.com
113195-01J 11
Figure 8 - Attaching Top Surround Panel
Figure 9 - Attaching Side Panels to Top
Panel
Top Surround
Panel
Top Panel
Side
Panel
Phillips
Screws (4)
Top Edge of
Fireplace Insert
Phillips Screws
5. Place top surround panel at top of re-
place insert. Bottom edge of panel will
slide under top edge of insert. Align top
panel screw holes with those in insert.
Install four #10 Phillips screws, do not
tighten. See Figure 8.
6. Align screw holes in side panels with
holes in top panel (see Figure 9). Insert
and tighten #10 Phillips screws.
7. Reinstall louver removed in step 4,
page 10.
8. Carefully inspect replace surround as-
sembly. Make sure each part ts properly.
Firmly tighten all screws installed during
assembly.
CAUTION: Do not overtight-
en. Metal can bend, warp or break
under excessive strain.
9. Install trim after nal nishing and/or paint-
ing of wall.
INSTALLATION
Continued
INSTALLING HOOD
Install hood to top of rebox as shown in
Figure 10. Use 5 Phillips screws (provided)
to attach hood to replace insert and 2 Phil-
lips screws (provided) to attach hood and
surround sides to replace insert.
Figure 10 - Installing Hood to Firebox
Screws
INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling and adjoining wall.
Carefully follow instructions below. This will
ensure safe installation.
Minimum Clearances For Side Combustible
Material, Side Wall and Ceiling
A. Clearances from side of replace cabinet to
any combustible material and wall should
follow diagram in Figure 12, page 12.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This com-
bustible material must be 4” from side of
replace opening (see Figure 11).
B. Clearances from top of replace opening to
ceiling should not be less than 42".
Figure 11 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example

www.desatech.com 113195-01J12
Mantel Clearances for Insert Installation
If there is a mantel above masonry replace,
you must meet minimum clearance between
mantel shelf and top of replace opening (see
Figure 12).
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
requirements of the national
product standard. Follow all
minimum clearances shown in
this manual.
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• raise the mantel to an accept-
able height
• remove the mantel
INSTALLATION
Continued
Supplied Hood Must
Be Used at All Times
Wire-mesh
Screen
Fireplace Noncombustible
Material May
Project Off this
Surface above
the Insert Hood
Mantel Shelf
13" 16" 19" 21"
2
1/2
"
6"
8"
10"
Fireplace Insert
Note: All vertical
measurements are
from top of insert hood
opening to bottom
of mantel shelf.
Wall board or facing
material (above
fireplace) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Figure 12 - Minimum Mantel Clearances
for Fireplace Insert Installation
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
WARNING: A qualified
service person must connect
replace Insert to gas supply.
Follow all local codes.
CAUTION: Never connect
propane/LP heater directly to the
propane/LP supply. This heater
requires an external regulator
(not supplied). Install the exter-
nal regulator between the heater
and propane/LP supply.
WARNING: Never connect
natural gas replace insert to
private (non-utility) gas wells.
This gas is commonly known
as wellhead gas.
Installation Items Needed
Before installing replace insert, make sure
you have the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved exible gas line with gas con-
nector (if allowed by local codes) (not
provided)
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the optional CSA design-certied equipment
shutoff valve from your dealer.

www.desatech.com
113195-01J 13
INSTALLATION
Continued
For propane/LP units, installer must supply
an external regulator. External regulator will
reduce incoming gas pressure. You must
reduce incoming gas pressure to between
11" and 14" of water. If you do not reduce
incoming gas pressure, heater regulator dam-
age could occur. Install external regulator with
the vent pointing down as shown in Figure 13.
Pointing vent down protects it from freezing
rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to replace
insert. If pipe is too small, undue
loss of volume will occur.
Installation must include an equipment shutoff
valve and plugged 1/8" NPT tap. Locate NPT
tap within reach for test gauge hook up. NPT
tap must be upstream from replace insert
(see Figure 14).
IMPORTANT: Install equipment shutoff valve
in an accessible location. The equipment
shutoff valve is for turning on or shutting off
the gas to the appliance.
Check your building codes for any special
requirements for locating equipment shutoff
valve to replaces.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could
result in clogged replace valves.
Figure 13 - External Regulator with Vent
Pointing Down
Propane/LP
Supply Tank
External
Regulator
Vent
Pointing
Down
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment
trap in supply line as shown in Figure 14.
Locate sediment trap where it is within reach
for cleaning. Install in piping system between
fuel supply and heater. Locate sediment trap
where trapped matter is not likely to freeze.
A sediment trap traps moisture and con-
taminants. This keeps them from going into
replace insert gas controls. If sediment trap
is not installed or is installed wrong, replace
may not run properly.
CSA Design-
Certied Equipment
Shutoff Valve With
1/8" NPT Tap*
Supplied Flexible
Gas Line
3" Minimum
Propane/LP
From External
Regulator (11"
W.C. to 14"
W.C. Pressure)
Natural
From Gas
Meter (5" W.C.
to 10.5" W.C.
Pressure)
Cap Pipe Tee
Nipple Joint
Sediment Trap
Figure 14 - Gas Connection
* Purchase the optional CSA design-certied
equipment shutoff valve from your dealer.
CONNECTING FIREPLACE INSERT
TO GAS SUPPLY
Installation Items Needed
• 5/16” hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not
provided)
1. Remove fireplace insert screen. Lift
replace insert screen up and pull out to
remove.

www.desatech.com 113195-01J14
2. Remove screws that attach log base
assembly to replace insert (see Figure
15). Carefully lift up log base assembly
and remove from replace insert (see
Figure 15).
Note: If adding the G8010 series brick liner
accessory, install it now. Follow instructions
in G8010 accessory kit.
CAUTION: Do not pick up log
base assembly by burners. This
could damage burners. Only
handle base by grates.
3. Route gas supply line through access open-
ing of replace insert (see Figure 15).
NOTICE: Most building codes
do not permit concealed gas
connections. A exible gas line
is provided to allow accessibility
from the replace (see Figure 16).
The exible gas supply line con-
nection to the equipment shutoff
valve should be accessible.
4. Connect gas supply line to exible gas
line attached to gas regulator of replace
insert (see Figure 16). Use sealant on all
male pipe threads.
5. Check all gas connections for leaks. See
Checking Gas Connections.
Figure 15 - Removing Log Base
Assembly From Fireplace Insert
Burners
Log Base
Assembly Gas
Line
Access
INSTALLATION
Continued
Figure 16 - Attaching Flexible Gas Lines
Together
Flexible Gas Line
from Fireplace Gas
Regulator Provided
with Fireplace Insert
To Fireplace
Gas Regulator Equipment
Shutoff Valve
Propane/LP
To External
Regulator
Natural
To Gas Meter
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open ame to check for a leak.
Apply a noncorrosive leak detec-
tion uid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply piping
system. Pressures in excess of 1/2 psig will
damage replace insert gas regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank for pro-
pane/LP gas or opening main gas valve
located on or near gas meter or using
compressed air.
Two
Screws
6. Replace log base assembly back into
replace insert. Feed exible gas line into
replace insert base area while replacing log
base assembly. Make sure the entire ex-
ible gas line is in replace insert base area.
Reattach log base assembly to replace
insert with screws removed in step 2.

www.desatech.com
113195-01J 15
INSTALLATION
Continued
4. Check all joints of gas supply piping sys-
tem. Apply a noncorrosive leak detection
uid to all joints. Bubbles forming show a
leak.
5. Correct all leaks at once.
6. Reconnect replace insert and equipment
shutoff valve to gas supply. Check recon-
nected ttings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure 17).
2. Pressurize supply piping system by either
opening propane/LP supply tank for pro-
pane/LP gas or opening main gas valve
located on or near gas meter or using
compressed air.
3. Check all joints from gas meter to equip-
ment shutoff valve for natural gas (see
Figure 18) or propane/LP supply to
equipment shutoff valve for propane/LP
(see Figure 19). Apply a noncorrosive
leak detection uid to all joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Figure 17 - Equipment Shutoff Valve
Equipment
Shutoff
Valve
Figure 18 - Checking Gas Joints (Natural
Gas)
Manual Gas Valve
Figure 19 - Checking Gas Joints
(Propane/LP Gas)
Equipment Shutoff Valve
Manual Gas Valve
Open
Closed
Equipment
Shutoff
Valve
Gas
Meter
Propane/LP
Supply
Tank
PRESSURE TESTING FIREPLACE
INSERT GAS CONNECTIONS
1. Open equipment shutoff valve (see Fig-
ure 17).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
3. Make sure control knob of replace insert
is in the OFF position.
4. Check all joints from gas meter to equip-
ment shutoff valve for natural gas (see
Figure 18) or propane/LP supply to
equipment shutoff valve for propane/LP
(see Figure 19). Apply a noncorrosive
leak detection uid to all joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light fireplace insert (see Operation,
page 19). Check all other internal joints
for leaks.
7. Turn off replace insert (see To Turn Off
Gas to Appliance, page 20).
FIREPLACE INSERT INSTALLATION
INTO MASONRY FIREPLACE
Installation of this replace insert involves
installing fireplace insert into an existing
masonry replace. If using a mantel above
the replace, you must follow the clearances
shown in Figure 12, page 12. Follow instruc-
tions below to install replace insert in this
manner.
1. Use dimensions shown in Figure 20, page
16 for masonry replace opening.
2. Install and properly ground GA3555, three-
prong 120 volt electrical outlet, in replace
insert. Follow instructions included in kit
(see Accessories, page 34).

www.desatech.com 113195-01J16
35"
17 1/4"
26 1/4"
Figure 20 - Rough Opening for Installing
in Masonry Fireplace
3. Install gas piping to replace location. This
installation includes an approved exible
gas line (if allowed by local codes) after
equipment shutoff valve. Flexible gas line
must be the last item installed on gas pip-
ing. See Installing Gas Piping to Fireplace
Location, page 12.
4. Carefully set replace insert in front of
masonry fireplace with back of insert
inside wall opening.
5. Attach exible gas line to gas supply. See
Connecting Fireplace Insert to Gas Sup-
ply, page 13.
6. Plug electrical cord into electrical outlet
installed in step 2.
7. Carefully place replace insert into ma-
sonry replace.
8. Check all gas connections for leaks. See
Checking Gas Connections, page 14.
9. Install trim after nal nishing and/or paint-
ing of wall (see Figure 22).
INSTALLATION
Continued
ASSEMBLING AND ATTACHING
TRIM
1. Remove three pieces of surround trim
from packaging.
2. Locate four #6 screws, two adjusting
plates with set screws and two shims in
the hardware packet.
3. Align shim under adjusting plate as shown
in Figure 21.
4. Slide one end of adjusting plate/shim in
slot of top surround trim (see Figure 21).
5. Slide other end of adjusting plate/shim in
slot on mitered edge of side surround trim
(see Figure 21).
6. While rmly holding edges of trim together,
tighten both set screws on adjusting plate
with slotted screwdriver.
7. Repeat steps 3 through 6 for other side.
8. Line up holes in surround trim with holes
on side panels of replace surround as-
sembly. Attach with screws provided (see
Figure 22).
9. Move heater and surround assembly to
replace opening. Make sure heater and
surround assembly t properly.
Slot
Side
Surround
Trim
Top
Surround
Trim
Set
Screws
Adjusting
Plate
Mitered
Edge
Figure 21 - Assembling Surround Trim
Shim Mitered
Edge
Figure 22 - Attaching Trim to Fireplace
Surround
#6 Screws (4)
Trim
Fireplace
Surround
Slot
Insert
Minimum Fire-
place Opening
Height 25 9/16" 26 1/4"
Front Width 34 5/16" 35"
Depth 16 11/16" 17 1/4"

www.desatech.com
113195-01J 17
INSTALLATION
Continued
Figure 24 - Installing Log Set (Top View)
Figure 25 - Installing Screen
Notches
Screws for
Mounting
Screen
Burner
Ports
Figure 23 - Installing Log Set
Chassis
Log
Set
Crossover
Log #3
Burner
Front
Log #2
Back
Log #1
Grate
Prongs
INSTALLING LOGS
CAUTION: Do not remove the
warning and instruction labels
attached to the heater base as-
sembly. These markings contain
important warranty and safety
information.
WARNING: Failure to posi-
tion the parts in accordance
with these diagrams or failure
to use only parts specically
approved with this heater may
result in property damage or
personal injury.
WARNING: After installa-
tion and periodically thereafter,
check to ensure that no ame
comes in contact with any log.
With the heater set to HI, check
to see if ames contact any log. If
so, reposition logs according to
the log installation instructions
in this manual. Flames contact-
ing logs will create soot.
It is very important to install logs exactly as
instructed. Do not modify logs. Only use logs
supplied with heater.
1. Place back log #1 on grate to t as il-
lustrated in Figure 23. Make sure middle
section at bottom of log set is seated into
“U”-shaped cutout in center of chassis
(see Figure 23). IMPORTANT: Make sure
log does not cover any burner ports (see
Figure 24).
2. Place front log #2 against front grate
prongs as shown in Figure 23.
3. Place crossover log #3 on top of front and
back logs as shown in Figure 23.
4. Place lava rock around base of heater if
desired.
WARNING: You must oper-
ate this replace insert with the
replace insert screen in place.
Make sure replace insert screen
is in place before running re-
place insert.

www.desatech.com 113195-01J18
INSTALLATION
Continued
OPTIONAL WIRELESS HAND-HELD
REMOTE CONTROL ACCESSORIES
(HRC100 Series and HRC200 Series)
Installing Remote Receiver Unit
1. Disconnect switch wires from control valve.
2. Remove screws attaching switch plate.
3. Remove switch plate (see Figure 26).
Discard after removing.
4. Install remote receiver unit onto gas log
heater base using mounting clips.
5. Push clips firmly into place (see Fig-
ure 27).
6. Connect wires as shown in Figure 28.
Figure 26 - Switch Plate and Wiring
Harness
Screw
Switch
Plate
Wires
Remote Switch
Bracket Ignitor
Figure 27 - Installing Remote Receiver
Figure 28 - Connecting Wires
Red Wire From
Receiver
Valve
White
Wire From
Receiver
Remote
Receiver
Mounting
Clips
INSTALLING 9-VOLT BATTERIES
Two 9-volt batteries (not included) are re-
quired to operate this heater with wireless
hand-held remote control set. Install one bat-
tery in receiver and one in hand-held remote
control unit.
Note: Only use alkaline batteries.
Installing 9-Volt Battery (Not Included) in
Receiver
1. Locate back of receiver under front burner
of heater.
2. Locate battery clip mounted on back of
receiver.
3. Slide a 9-volt battery through the clip.
4. Attach terminal wires to battery.
Installing 9-Volt Battery (Not Included) in
Hand-Held Remote Control Unit
1. Remove battery cover on back of remote
control unit.
2. Attach terminal wires to battery. Place
battery into battery housing.
3. Replace battery cover onto remote control
unit.
Figure 29 - Installing Battery in Remote
Receiver
Battery
Clip
9-Volt Battery
Terminal
Wires
Remote
Receiver
Figure 30 - Installing Battery in Hand-Held
Remote Control Unit
Battery
Cover
9-Volt Battery
Terminal
Wires
Remote
Control Unit
Battery
Housing

www.desatech.com
113195-01J 19
OPERATION
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: If you do not fol-
low these instructions exactly,
a re or explosion may result
causing property damage, per-
sonal injury or loss of life.
A. This appliance has a pilot which must
be lighted by hand. When lighting
the pilot, follow these instructions
exactly.
B. BEFORE LIGHTING smell all around
the appliance area for gas. Be sure to
smell next to the oor because some
gas is heavier than air and will settle
on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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 re department.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn by
hand, don’t try to repair it, call a quali-
ed service technician or gas supplier.
Force or attempted repair may result in
a re or explosion.
D. Do not use this appliance if any part
has been under water. Immediately
call a qualied service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been under
water.
LIGHTING
INSTRUCTIONS
WARNING: You must oper-
ate this heater with the replace
insert screen in place. Make
sure replace insert screen is
installed before running re-
place insert.
O
F
F
P
I
L
O
T
L
O
I
H
AU TO
OFF
ON
O
N
Figure 31 - Control Knob and Ignitor
Button Location (Shown as Supplied, No
Control Options)
Control
Knob
Ignitor Button
Flame
Adjustment
Knob
Selector Switch
NOTICE: During initial operation
of new replace insert, burning
logs will give off a paper-burning
smell. Open damper or window
to vent smell. This will only last
a few hours.
1. STOP! Read the safety information col-
umn 1.
2. Make sure equipment shutoff valve is fully
open.
3. Set switch to OFF position.
WARNING: Burners will
come on automatically within
one minute when the remote
selector switch is in the ON posi-
tion after the pilot is lit.
4. Press in and turn control knob clockwise
to the OFF position.
5. Wait ve (5) minutes to clear out any gas.
Then smell for gas, including near the
oor. If you smell gas, STOP! Follow “B”
in the safety information in column 1. If
you don’t smell gas, go to the next step.
6. Press in and turn control knob counter-
clockwise to the PILOT position.
Press in control knob for ve (5) seconds
(see Figure 31).
Note: You may be running this heater
for the rst time after hooking up to gas
supply. If so, the control knob may need
to be pressed in for 30 seconds or more.
This will allow air to bleed from the gas
system.

www.desatech.com 113195-01J20
OPERATION
Continued
7. With control knob pressed in, press and
release ignitor button. This will light pilot.
The pilot is attached to the front burner. If
needed, keep pressing ignitor button until
pilot lights.
Note: If pilot does not stay lit, contact a
qualied service person or gas supplier
for repairs. Until repairs are made, light
pilot with match. To light pilot with match,
see Manual Lighting Procedure.
8. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob.
• If control knob does not pop out when
released, contact a qualified service
person or gas supplier for repairs.
Note: If pilot goes out, repeat steps 4
through 8 starting on page 19.
9. Slightly push in and turn control knob coun-
terclockwise to the ON position.
10. Wait one minute and switch selector switch
to the ON position to light burners.
11. Set ame adjustment knob to any level
between HI and LO.
12. To leave pilot lit and shut off burners only:
turn control knob clockwise to the
PILOT position, or use remote control
manual OFF button, or set selector switch
in the OFF position.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
WARNING: Make sure the
selector switch is in the OFF
position when you are away from
home for long periods of time.
Heater will come on automati-
cally with selector switch in the
ON position.
Ignitor
Electrode
Pilot
Burner
Figure 32 - Pilot
Natural Gas
Ignitor
Electrode
Pilot Burner
Propane/LP Gas
TO TURN OFF GAS
TO APPLIANCE
1. Turn control knob clockwise to the
OFF position.
2a. Set selector switch in the OFF position.
2b. If Using Optional Hand-Held Remote:
Set remote selector switch in the OFF
position to keep from draining battery.
3. Close equipment shutoff valve (see Figure
17, page 15).
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 6 under Lighting
Instructions, page 19.
2. Press control knob and light pilot with
match.
3. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob. Now follow steps 9
through 11 under Lighting Instructions,
column 1.
OPTIONAL HAND-HELD
REMOTE OPERATION
Note: All remote control accessories must
be purchased separately (see Accessories,
page 34). Follow instructions included with
the remote control.
NOTICE: You must light the pilot
before using the hand-held re-
mote control unit. See Lighting
Instructions on page 19.
After lighting, let pilot ame burn for about
one minute. Turn control knob to ON posi-
tion. Adjust ame adjustment knob anywhere
between HI and LO. Slide selector switch to
REMOTE position (see Figure 33, page 21).