Desa MSVFBP Quick start guide

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.
• Donottouchanyelectricalswitch;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 sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage. Re-
fer to this manual for correct installation
and operational procedures. For assis-
tance or additional information consult a
qualified installer, service agency, or the
gas supplier.
WARNING:TheMSVFBP(R)seriesvent-free
gaslogheaterisonlyapprovedforuseinthe
Sun Valley MC(*) series and MCH(P) series
cast iron stove models.
(* Indicates Color Suffix Designation)
Save this manual for future reference.
(VENT-FREE) PROPANE/LP GAS STOVE HEATER
Patent Pending
Sun Valley Stove Model MSVFBP Series
Variable Manual-Control or Model MSVFBPR
Series Remote-Ready Gas Log Heater
(Burner System For Cast Iron Stoves)
OWNER’S OPERATION AND INSTALLATION MANUAL
This appliance may be installed in an aftermarket*, permanently located, manufactured
(mobile) home, where not prohibited by state or 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
Fortechnicalsupportcall DESA
International’sTechnicalService
Departmentat1-800-DESALOG
(1-800-337-2564).
WARNING: This is an unvented gas-fired
heater.Itusesair(oxygen)fromtheroomin
whichitisinstalled.Provisionsforadequate
combustionandventilationairmustbepro-
vided.Referto AirforCombustionandVen-
tilation section on page 4 of this manual.

2
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
SAFETY
INFORMATION
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper-
ate, or service this heater. Im-
proper use of this heater can
causeseriousinjuryordeathfrom
burns, fire, explosion, electrical
shock, and carbon monoxide
poisoning.
CarbonMonoxidePoisoning:Earlysignsof
carbonmonoxidepoisoningresemble theflu,
with headaches, dizziness, or nausea. If you
havethese signs, the heatermay not bework-
ing properly. Get fresh air at once! Have
heater serviced. Some people are more af-
fectedbycarbonmonoxidethanothers.These
includepregnantwomen,peoplewithheartor
lungdiseaseor anemia, those undertheinflu-
ence of alcohol, and those at high altitudes.
Propane/LP Gas: Propane/LP gas is odor-
less.Anodor-makingagentisaddedtothegas.
The odor helps you detect a gas leak. How-
ever, 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.Keepthismanualforreference.It
isyourguidetosafeandproperoperationof
this heater.
WARNINGICON G001 WARNINGS
DANGER: Carbon monoxide
poisoning may lead to death!
1. This appliance is only for use with the
typeof gas indicatedon the ratingplate.
Thisappliance is notconvertible for use
with other gases.
2. Do not placepropane/LP supply tank(s)
inside any structure. Locate propane/
LP supply tank(s) outdoors.
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 the
gas supplier’s instructions
• ifyou cannot reach your gassupplier,
call the fire department
4. This heater shall not be installed in a
bedroom or bathroom.
6. Do not use this stove as a wood burn-
ing fireplace. Use only model
MSVFBP(R) vent-free gas log heater.
6. Do not add extra logs or ornaments
suchas pinecones, vermiculite,or rock
wool. Using these added items can
cause sooting.
WARNING: Any change to
this heater or its controls can be
dangerous.
WARNING: Do not allow fans
to blow directly into the stove.
Avoidanydraftsthatalterburner
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,orotheraccessorynotap-
proved for use with this heater.
Due to high temperatures, the
appliance should be located out
oftraffic 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.
Stove becomes very hot when
runningheater.Keepchildrenand
adults away from hot surfaces to
avoid burns or clothing ignition.
Stove 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
withheater.Whenusingthehand-
held remote accessory, keep se-
lector switch in the OFF position
to prevent children from turning
on burners with remote.
Keeptheapplianceareaclearand
free from combustible materials,
gasoline, and other flammable
vapors and liquids.
7. This log heater is designed to be smoke-
less.Iflogsever appearto smoke,turnoff
heater and call a qualified service person.
Note: During initial operation, slight
smokingcouldoccurduetologcuringand
heater burning manufacturing residues.
8. To prevent the creation of soot, follow
the instructions in Cleaning and Main-
tenance, page 18.
9. Before usingfurniture polish, wax,car-
pet cleaners, or similar products, turn
heater off. If heated, the vapors from
theseproducts maycreate awhite pow-
der residue within burner box or on
adjacent walls or furniture.
10. This heaterneeds fresh, outside air ven-
tilation to run properly. This heater has
an Oxygen Depletion Sensing (ODS)
safety shutoff system. The ODS shuts
down the heater if not enough fresh air
is available. See Air for Combustion
and Ventilation, pages 4 through 6. If
heater keeps shutting off, see Trouble-
shooting, pages 19 through 21.
11. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
12. Do not use this stove to cook food or
burn paper or other objects.
13. Do not use heater if any part has been
exposedtoor under water.Immediately
call a qualified service technician to in-
spectthe room heater andto replace any
part of the control system and any gas
control which has been under water.
14. Do not operate heater if any log is bro-
ken. Do not operate heater if a log is
chipped (dime-sized or larger).
15. Turn heater off and let cool before ser-
vicing. Only a qualified service person
should service and repair heater.
16. Operating heater above elevations of
4,500 feet could cause pilot outage.
17. To prevent performance problems, the
use of a propane/LP tank of less than
100 lb. capacity is not recommended.
18. Do not place stove directly on carpet-
ing, vinyl tile, or any combustible ma-
terial other than wood. The stove must
set on a metal or wood panel extending
thefullwidthanddepthoftheappliance.

3
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
LOCAL CODES
Installanduseheaterwithcare.Followall
local codes. In the absence of local codes,
use the latest edition of TheNationalFuel
Gas Code ANS Z223.1, also known as
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
PRODUCT
IDENTIFICATION
Figure 1 - Typical Stove Cabinet Model (Shown with Model MSVFBPR Heater)
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,dancingyellowflames.Thisheater
is designed for vent-free operation. State
and local codes in some areas prohibit the
use of vent-free heaters.
SAFETY PILOT
This heater has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff
system.The ODS/pilot is a requiredfeature
for vent-free room heaters. The ODS/pilot
shuts off the heater if there is not enough
fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
PRODUCT
FEATURES
ON
OFF
REMOTE
P
I
L
O
T
O
F
F
O
N
LO
HI
Stove Body
Stove Door
(Shown in the
open position)
Piezo Ignitor Control Knob
One Piece
Log Set
Inside
Stove
Cavity
Gas Log Heater
Base Assembly
Flame
Adjustment
Knob
Selector
Switch

4
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
AIR FOR
COMBUSTION AND
VENTILATION
Today’s homes are built more energy effi-
cient than ever. New materials, increased
insulation, and new construction methods
helpreduceheatlossinhomes.Homeowners
weatherstripandcaulkaroundwindowsand
doorstokeepthecoldairoutandthewarmair
in. During heating months, home owners
want their homes as airtight as possible.
While it is good to make your home energy
efficient,yourhomeneedstobreathe.Fresh
air must enter your home. All fuel-burning
appliances need fresh air for proper com-
bustion and ventilation.
Exhaustfans,fireplaces,clothesdryers,and
fuel burning appliances draw air from the
house to operate. You must provide ad-
equate fresh air for these appliances. This
will insure proper venting of vented fuel-
burning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from Na-
tional Fuel Gas Code, NFPA 54/ANS
Z223.1, Section 5.3, Air for Combustion
and Ventilation.
Allspacesinhomesfallintooneofthethree
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 will
help you classify your space and provide
adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and win-
dows 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 de-
fined as construction where:
a. walls and ceilings exposed to the
outside atmosphere have a con-
tinuous water vapor retarder with
a rating of one perm (6 x 10-11 kg
per pa-sec-m2) or less with open-
ings 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, be-
tween sole plates and floors,be-
tween wall-ceiling joints, be-
tween wall panels, at penetra-
tionsforplumbing,electrical,and
gas lines, and at other openings.
If your home meets all of the three
criteria above, you must provide ad-
ditional fresh air. See Ventilation Air
From Outdoors , page 6.
If your home does not meet all of the
three criteria above, proceed to De-
termining Fresh-Air Flow For Heater
Location, page 5.
Confined and Unconfined Space
The National Fuel Gas Code, ANS Z223.1
defines a confined space as a space whose
volume is less than 50 cubic feet per 1,000
Btu per hour (4.8 m3per kw) of the aggre-
gate input rating of all appliances installed
in that space and an unconfined space as a
space whose volume is not less than 50
cubicfeetper1,000Btuperhour(4.8m3per
kw) of the aggregate input rating of all
appliances installed in that space. Rooms
communicating directly with the space in
whichtheappliancesareinstalled*,through
openings not furnished with doors, are con-
sidered a part of the unconfined space.
This heater shall not be installed in a con-
fined space or unusually tight construction
unlessprovisions are provided foradequate
combustion and ventilation air.
*Adjoiningroomsarecommunicatingonly
iftherearedoorlesspassagewaysorventila-
tion grills between them.
WARNING: This heater shall
not be installed in a confined
space or unusually tight con-
struction unless provisions are
provided for adequate combus-
tion and ventilation air. Read
the following instructions to in-
sure proper fresh air for this
and other fuel-burning appli-
ances in your home.

5
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
AIR FOR
COMBUSTION AND
VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR HEATER 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:Includestheroominwhichyouwillinstallheaterplusanyadjoiningroomswithdoorlesspassagewaysorventilationgrillsbetween
the rooms.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = ____________________ cu. ft. (volume of space)
Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) =2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_________________ (volume of space) ÷50 cu. ft. = (maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) ÷50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater __________________Btu/Hr
Gas water heater* __________________Btu/Hr
Gas furnace __________________Btu/Hr
Vented gas heater __________________Btu/Hr
Gas fireplace logs __________________Btu/Hr
Other gas appliances* + __________________Btu/Hr
Total = __________________Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
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)
70,000 Btu/Hr (actual amount of Btu/Hr used)
ThespaceintheaboveexampleisaconfinedspacebecausetheactualBtu/HrusedismorethanthemaximumBtu/Hrthespacecansupport.
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 provides an unconfined space, remove door to adjoin-
ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
Continued
Example:
Gas water heater 40,000 Btu/Hr
Vent-free heater +30,000 Btu/Hr
Total =70,000 Btu/Hr
WARNING:Iftheareainwhichtheheatermaybeoperatedissmallerthanthatdefinedasanunconfinedspace
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, ANS Z223.1, Section 5.3 or applicable local codes.

6
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
AIR FOR
COMBUSTION AND
VENTILATION
Continued
Figure 3 - Ventilation Air from Outdoors
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two per-
manent openings: one within 12" of the
ceiling and one within 12" of the floor.
Connecttheseitemsdirectlytotheoutdoors
orspacesopentotheoutdoors.Thesespaces
include attics and crawl spaces. Follow the
National Fuel Gas Code, NFPA 54/ANS
Z223.1,Section5.3,AirforCombustionand
Ventilation for required size of ventilation
grills or ducts.
IMPORTANT: Do not provide openings
for inlet or outlet air into attic if attic has
a thermostat-controlled power vent.
Heated air entering the attic will activate
the power vent.
Figure 2 - Ventilation Air from Inside Building
VENTILATION AIR
Ventilation Air From Inside
Building
Thisfreshairwouldcomefromanadjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must pro-
vide two permanent openings: one within
12" of the ceiling and one within 12" of the
floor on the wall connecting the two spaces
(seeoptions1and2,Figure2).Youcanalso
remove door into adjoining room (see op-
tion 3, Figure 2). Follow the National Fuel
Gas Code, NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
Outlet
Air Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
WARNING: Rework work-
sheet, adding the space of the
adjoiningunconfinedspace.The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.

7
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
WARNING: Never install the
heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objectsarelessthan42inches
from the front, top, or sides of
the heater
• in high traffic areas
• in windy or drafty areas
INSTALLATION
WARNING: A qualified ser-
vice person must install heater.
Follow all local codes.
CAUTION:Thisheatercreates
warmaircurrents.Thesecurrents
moveheattowallsurfacesnextto
heater. Installing heater next to
vinyl or cloth wall coverings or
operatingheaterwhereimpurities
(suchastobaccosmoke,aromatic
candles, cleaning fluids, oil or
kerosene lamps, etc.) in the air
exist, may discolor walls.
CHECK GAS TYPE
Useonlypropane/LPgas.Ifyourgassupply
is not propane/LP gas, do not install heater.
Call dealer where you bought heater for
proper type heater.
IMPORTANT: Vent-freeheatersaddmois-
ture 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 Com-
bustion and Ventilation, pages 4 through 6.
CLEARANCES TO
COMBUSTIBLES
(Vent-Free Operation Only)
WARNING:Maintainthemini-
mum clearances. If you can, pro-
vide greater clearances from
floor, ceiling, and adjoining side
and back walls.
Carefullyfollowtheinstructionsbelow.This
stove is a freestanding unit designed to set
directly on the floor. Do not place stove
directlyoncarpeting,vinyl tile,oranycom-
bustiblematerialotherthanwood.Thestove
mustsetonametalorwoodpanelextending
the full width and depth of the appliance.
NOTICE: This heater is intended
foruseassupplementalheat.Use
this heater along with your pri-
mary heating system. Do not in-
stall this heater as your primary
heatsource. If youhave a central
heating system, you may run
system’scirculatingblowerwhile
usingheater.Thiswillhelpcircu-
late the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
Figure 4 - Minimum Clearance to Walls and Ceiling (Stove May Vary Depending on
Model)
Front View
Top View
Side View
Front of
Stove Unit
Continued
12"
Minimum 12" Minimum
48"
Minimum
Ceiling
Side Wall Side Wall
Back Wall
Side Wall Side Wall
12 "
Minimum 12
"
Minimum
6
"
Minimum
6"
Minimum
48"
Minimum
Ceiling
Floor
Back Wall
Corner
Wall
Wall
6 "
Minimum
6
"
Minimum
IMPORTANT: You must maintain mini-
mum wall and ceiling clearances during
installation. The minimum clearances are
showninFigure4.Measurefromoutermost
point of stove top.
Minimum Wall and Ceiling
Clearances (see Figure 4)
A. Clearances from outermost point of
stove top to any combustible side wall
should not be less than 12 inches.
B. Clearances from outermost point of
stove top to any combustible back wall
should not be less than 6 inches (In-
cludes Corner Installations).
C. Clearances from the stove top to the
ceiling should not be less than 48
inches.

8
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
INSTALLATION
Continued
Figure 6 - Laying Down Stove On Side
Front of
Stove Unit
Pallet Wood
Bolted to
Stove Body
Bottom
Top of Stove Unit Front of
Stove Unit Top of
Stove
Unit
Drop Cloth/
Blanket
Figure 7 - Removing Pallet Wood From The Bottom of The Stove
Pallet
Wood
Bolt Pallet
Wood
Bottom Of
Stove Unit
Front
Figure 8 - Locating Threaded Holes for Stove Bottom, Legs, and Door Attachment
(Appearance May Vary Depending on Model)
Leg
Hole
Leg
Hole
Leg
Hole
Leg
Hole
Door Hinge Step
Bolt Hole Door Catch Bolt
With Adjustable
Hex Nuts Hole
Stove
Bottom
Hole
Front
Bottom Of
Stove Unit
STOVE CAVITY ASSEMBLY
1. Lift off corrugated box enclosing stove
body crating.
2. Remove all screws fastening the wood
frameenclosure.Spreadwoodframeopen
and lift away from plastic-bagged stove
body. The bottom pieces of pallet wood
will remain bolted to the stove body.
3. Remove plastic bag from stove body.
4. Remove back panel from stove (see
Figure 5). Use an adjustable wrench or
a 10 mm socket. Remove six (6) bolts
and washers. Keep bolts and washers
to reattach back panel later.
5. Remove all contents from inside stove
cavity. Contents include:
(1) - Stove bottom
(4) - Legs (include leg leveler bolts)
(1) - Bottom door
(1) - Top grate
(1) - Hardware kit bag with fasteners
6. Carefully lay stove body on back to at-
tach bottom components to stove body
(seeFigure6). Rest stoveondrop cloth or
blanket to avoid scratching stove edges.
7. Remove remaining pallet wood attached
to bottom of stove body (see Figure 7).
Useanadjustablewrenchtoremovebolts.
Figure 5 - Removing Back Panel
Bolt Product
Identification
Label
Back
Stove
Panel
CAUTION: Cast iron isbrittle.
Do not overtighten bolts or
screws during assemlby.
8. Fasten each leg to stove with four (4)
M8 x 1.25 - 20mm bolts. Use a flat
washer and lock washer with each bolt.
Tighten bolts into threaded holes on
stove body (see Figure 8, this page, and
Figure 9 on page 9). Use an adjustable
wrench or a 12mm socket.
9. Fasten stove bottom to stove with four
(4) M6 x 1 - 25mm bolts. Use a flat
washer and lock washer with each bolt.
Tighten bolts into threaded holes on
stove body (see Figure 8, this page and
Figure 10 on page 9). Use an adjust-
able wrench or a 10mm socket.

9
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
INSTALLATION
Continued
Figure 9 - Attaching Stove Legs
Bottom Of
Stove Unit
Leg
Bolt
Washers
Figure 10 - Attaching Stove Bottom
Bottom Of
Stove Unit
Bolt
Washers
Stove
Bottom
Continued
Figure 11 - Attaching Stove Door
Step
Bolt
Door
Hinge
Threaded
Hole
Stove
Door
Stove Bottom
Bolt
Shoulder
Door
Hinge
Step
Bolt
Bolt
Shoulder
Adjusting Nut
Bolt Stop
Catch Bolt
Door Claw
Door
Figure 12 - Catch Bolt and Door Claw Orientation
Stove
Door
10. Attach stove door by inserting step bolt
through door hinge pivot hole and into
threaded hole in stove body (see Figure
8 on page 8 and Figure 11). Use an ad-
justablewrenchora12mmsockettofas-
tenstepbolt.Tightenstepboltuntilsnug.
Make sure door moves freely.
11. Install door catch bolt (M8 x 1.25-
55mm with two M8 hex nuts) into
threaded hole on stove body (see Fig-
ure 8, page 8). Use an adjustable
wrench or a 12mm socket. The catch
bolt has two hex nuts attached to it (see
Figure 12). The top nut is a bolt stop
and the bottom nut is for door leveling
adjustment.
12. Check general catch bolt alignment
with door claw. Make final adjustment
and door leveling after stove is in nor-
mal standing position.
13. Carefully lift stove back up on its four
attached legs.
14. Set top grate into stove top.
15. If available, install gas log heater in-
side stove cavity before installing the
back panel (see Installing Gas Log
Heater Into Stove, page 10).
16. Fasten back panel to stove with six (6)
M6 x 1 - 20mm bolts and washers.
Make sure product identification label
is located on the outside in lower left-
hand corner.

10
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
1. Remove log and gas log heater from
carton. Note: Do not pick up gas log
heater by the burner itself. This could
damage heater. Always handle the gas
log heater by the heater base only.
2. Removeallprotectivepackagingapplied
to log and gas log heater for shipment.
3. Check all items for any shipping dam-
age. If damaged, promptly inform
dealer where you bought heater.
4. If not already removed, remove back
panel from assembled stove body (see
Figure 5, page 8). Use an adjustable
wrench or a 10 mm socket. Remove six
(6) bolts and washers. Keep bolts and
washers to reattach back panel later.
5. Setgaslogheaterinsidestove.Makesure
control knob extension passes through
bottom front opening (see Figure 13).
6. Align outside holes on heater base with
four (4) mounting holes on the stove
bottom (see Figure 13).
INSTALLATION
Continued
7. Fasten heater base to stove bottom with
#10-24 x .50 bolts and hex nuts pro-
vided with gas log heater (see Figure
14). Attachment hardware is factory
packed inside plastic bag with installa-
tion manual and owner’s registration
card. Push bolt through heater base
mounting hole and through stove bot-
tom. Connect hex nut to bolt on under-
side of stove bottom. The bolt hex head
is for a 5/16" socket and the hex nuts
are for a 3/8" socket. If sockets are not
available, use adjustable wrenches.
8. Set one-piece log on heater base as
shown in Figure 15. Make sure middle
section at bottom of log is seated into
"U" shaped cutout in center of heater
base. Log will fit securely on base.
IMPORTANT: Make sure log does not
cover any burner ports and does not
touch the stove cavity (see Figure 16).
9. Fasten back panel to stove with six (6)
M6 x 1.20mm bolts and washers. Make
sureproductidentificationlabelislocated
on the outside lower left-hand corner.
Note: Do not overtighten bolts. Porce-
lain on back panel may crack.
10. Place freestanding stove in desired po-
sition in room. Be sure to maintain
clearances to combustibles as outlined
on page 7.
CAUTION: Do notremovethe
metal data plates attached to the
heater base assembly. The data
platescontainimportantwarranty
information.
WARNING:Failuretoposition
thepartsinaccordancewiththese
diagrams or failure to use only
parts specifically approved with
this heater may result in property
damage or personal injury.
CAUTION:Afterinstallationand
periodicallythereafter,checktoen-
surethatnoflamecomesincontact
with any log. With the heater set to
High,checktoseeifflamescontact
any log. If so, reposition logs ac-
cording to the log installation in-
structions in this manual. Flames
contacting logs will create soot.
H
I
L
O
O
F
F
P
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L
O
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O
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Figure 13 - Placing Heater Base In Stove
Cavity(AppearanceMayVaryDepending
on Model)
Figure 14 - Fastening Heater Base to
Stove Drop Bottom
Stove
Bottom
Heater
Base
Bolt
Hex Nut
Burner Porting Areas
(double slotted
rectangular openings
Figure 16 - Top View of One-Piece Log
Set on Gas Log Heater
Safety Pilot Location One-Piece
Log Set
One-Piece
Log Set
"U" Shaped
Cutout in
Chassis
Burner
Middle
Section at
Bottom of
Log Set
Bottom
Front
Opening
Stove Bottom
Burner
Bolt Heater
Base
Figure 15 - Installing One-Piece Stove
Log Set (Remote-Ready Log Heater
Shown)
Heater Base
INSTALLING GAS LOG
HEATER INTO STOVE

11
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
yourlocalcodes.Usepipeof1/2"
diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
Installationmustincludeanequipmentshutoff
valve, union, and plugged 1/8" NPT tap.
Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from
heater (see Figure 19, MSVFBPR series, or
Figure 20, page 12, MSVFBP series).
IMPORTANT: Install equipment shutoff
valve in an accessible location. The equip-
ment shutoff valve is for turning on or
shutting off the gas to the appliance.
Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
fromgoing into pipe.Excess sealant inpipe
could result in clogged heater valves.
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
Thegasinletconnectionforthestoveheater
islocatedonthelowerright-handsideofthe
stove when viewed from the front of the
unit.Thegasconnectioncanbemadeeither
throughthebottom right side or throughthe
lower back opening as illustrated in Figure
17. Make sure gas log heater is secured to
the stove cavity assembly.
INSTALLATION
Continued
CONNECTING TO GAS
SUPPLY
WARNING:A qualifiedservice
personmustconnectheatertogas
supply. Follow all local codes.
Installation Items Needed
Beforeinstallingheater,makesureyouhave
the items listed below.
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* An CSA/AGA design-certified equip-
ment shutoff valve with 1/8" NPT tap is an
acceptablealternative to testgauge connec-
tion. Purchase the optional CSA/AGA de-
sign-certifiedequipmentshutoffvalvefrom
your dealer. See Accessories, page 23.
Figure 17 - Gas Regulator Location and
Gas Line Access Into Stove Cabinet
Back Stove
Panel
Front
of
Stove
Unit Gas Inlet
Connection
Access
Product
Identification
Label
Gas
Log
Heater
Back View
Side View
Figure 19 - Gas Connection(MSVFBPR Series)
CAUTION: Never connect
heaterdirectly tothe propane/LP
supply. This heater requires an
externalregulator(notsupplied).
Install the external regulator be-
tweentheheaterandpropane/LP
supply.
The installer must supply an external regu-
lator. The external regulator will reduce
incoming gas pressure. You must reduce
incominggaspressuretobetween11and14
inchesofwater.Ifyoudonotreduceincom-
ing gas pressure, heater regulator damage
could occur. Install external regulator with
the vent pointing down as shown in Figure
18. Pointing the vent down protects it from
freezing rain or sleet.
Figure 18 - External Regulator With Vent
Pointing Down
Propane/
LP
Supply
Tank External
Regulator
Vent
Pointing
Down
Continued
WARNING: This appliance re-
quires a 1/2" NPT (National Pipe
Thread) inlet connection to the
pressure regulator.
3" Minimum Sediment
Trap
Gas Control
From External
Regulator (11"
W.C.** to 14" W.C.
Pressure)
CSA/AGA Design-Certified
Equipment Shutoff Valve With
1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
Tee Joint
Pipe Nipple
Cap

12
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
O
N
POSI
T
O
PO
S
Tee
Joint
Pipe
Nipple
Cap
3" Minimum
Sediment
Trap Gas
Regulator
From External
Regulator (11"
W.C.** to 14"
W.C. Pressure)
CSA/AGA Design-Certified Equipment
Shutoff Valve With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
Figure 20 - Gas Connection (MSVFBP Series)
* Purchase the optional CSA/AGA design-certified equipment shutoff valve from your
dealer. See Accessories, page 23.
**Minimum inlet pressure for purpose of input adjustment.
CAUTION: Avoid damage to
regulator.Holdgasregulatorwith
wrenchwhenconnectingittogas
piping and/or fittings.
CAUTION:Usepipejointseal-
ant that is resistant to liquid pe-
troleum (LP) gas.
Installsedimenttrapinsupplylineasshown
in Figure 19, page 11 and Figure 20. Locate
sediment trap where it is within reach for
cleaning.Locatesedimenttrapwheretrapped
matter is not likely to freeze. A sediment
trap traps moisture and contaminants. This
keepsthem from going into heatercontrols.
If sediment trap is not installed or is in-
stalled wrong, heater may not run properly.
INSTALLATION
Continued
WARNING:Neveruseanopen
flame to check for a leak. Apply a
mixture of liquid soap and water
toalljoints.Bubblesformingshow
a leak. Correct all leaks at once.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
CHECKING GAS
CONNECTIONS
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appli-
ance main gas valve (control valve)
and equipment shutoff valve from gas
supply piping system. Pressures in ex-
cess of 1/2 psig will damage heater
regulator.
2. Cap off open end of gas pipe where
equipment shutoff valve was con-
nected.
3. Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoffvalve (see Fig-
ure 21).
2. Pressurizesupply pipingsystem by either
usingcompressedairoropeningpropane/
LP supply tank valve.
3. Check alljoints from gasmeter to equip-
ment shutoff valve (see Figure 22). Ap-
ply mixture of liquid soap and water to
gas joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Heater Gas
Connections
1. Open equipment shutoffvalve(see Fig-
ure 21).
2. Open propane/LP supply tank valve.
3. Make sure control knob of heater is in
the OFF position.
4. Check alljoints fromequipment shutoff
valve to control valve (see Figure 22).
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
pages 14 through 17). Check all other
internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, remote-ready models, page
15, variable manual models, page 16).
Figure 21- Equipment Shutoff Valve
Closed
Equipment
Shutoff
Valve
Open
Figure 22 - Checking Gas Joints
Control Valve
Location
Propane/LP
Supply Tank
Equipment Shutoff Valve
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
heater.Seeguidelinesunder Con-
necting to Gas Supply , page 11.

13
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
W
R
INSTALLATION
Continued
To Remote
Accessory
INSTALLING OPTIONAL
WALL MOUNTED
THERMOSTAT - GWMT1
WARNING: Installation must
be done by a qualified installer
familiar with low voltage wiring
procedures.
WARNING: Do not connect
this thermostat to any electrical
source! Electrical shock and/or
fire hazard will occur.
1. Unscrew back panel on the stove and
remove the log set from heater base.
This will give you access to the valve.
2. Disconnect from the valve the wires
running from the ON/OFF switch.
3. Run the wires from the wall thermo-
stat through the rectangular cut-out in
thebackof the heaterbase.Connect one
terminal of the wire for the wall ther-
mostat to the THTP terminal on the
valve. Connect remaining wire termi-
nal to the TH terminal on the valve.
Make sure that the wire terminals are
in the positions on the unit as pictured
in Figure 23. If wires are not connected
as shown the thermostat will not work.
4. Route the wire to a convenient loca-
tion to mount your thermostat (no out-
side wall). IMPORTANT: The wire
must not exceed 25 feet in length.
The thermostat should be mounted 54"
above the floor in a location where
there is good air circulation. Avoid
heat sources such as lamps, direct sun-
light, fireplace, or heat and air condi-
tioning ducts.
WARNING: Do not connect
this thermostat to a power
source. Electrical shock and/or
fire hazard will occur.
5. Gently remove the cover of the ther-
mostat from the base. Grasp the sides
of the cover firmly and pull to separate
from the base.
6. Feed the electrical wires through the
rectangular slots (from the back) on
each side of the base (see Figure 24).
Figure24-BackViewofThermostatBase
Feed wires through
rectangular slots
Figure 25 - Thermostat Base Terminal
“W” and “R”
Figure 23- Control Valve Terminals
Terminal “W”
Terminal “R”
7. Connect one bare wire end to each ter-
minal (“W” and “R”) of the thermostat
base (see Figure 25).
8. Install the base to the wall with screws
provided with thermostat.
9. Move the temperature adjustment back
and forth to insure the bi-metal is free
from restrictions.
10. Replace the cover onto the base. (Upon
installation, the thermostat must be al-
lowed to stabilize at room temperature
fora minimum of30 minutes forproper
operation.)
11. Set the temperature adjustment to the
desired setting. This thermostat has
been electronically calibrated at the
factory. No adjustment or leveling is
necessary.
INSTALLING OPTIONAL
WIRELESS HAND-HELD
REMOTE CONTROL
Followallinstallationinstructions included
with the GHRC Series and GHRCT Series
wireless hand-held remote control kits (see
Accessories, page 23).

14
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
O
F
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AUTO
OFF
ON
LIGHTING
INSTRUCTIONS
OPERATING
HEATER
FOR YOUR SAFETY
READ BEFORE
LIGHTING
WARNING: If you do not fol-
low these instructions exactly, a
fireorexplosionmayresultcaus-
ing property damage, personal
injury or loss of life.
A. Thisappliancehasa pilotwhichmust
belightedbyhand.Whenlightingthe
pilot,followtheseinstructionsexactly.
B. BEFORE LIGHTING smell all
aroundtheapplianceareaforgas.Be
suretosmellnext tothe floorbecause
some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any appliance.
• Donottouchanyelectricswitch; do
notuse anyphone inyourbuilding.
• Immediatelycallyourgas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas sup-
plier, call the fire department.
C. Useonly yourhandtopushin orturn
thegas controlknob. Neverusetools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
D. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been un-
der water.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Open window to vent smell. This
will only last a few hours.
1. STOP! Read the safety information,
column 1.
2. Make sure equipment shutoff valve
is fully open.
3. Set switch to OFF position.
4. Pressinandturncontrolknob clock-
wise to the OFF position.
5. Waitfive(5) minutesto clearout any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP! Follow “B” in the safety in-
formation column 1. If you don’t
smell gas, go to the next step.
6. Pressinand turncontrolknob coun-
terclockwise to the PILOT
position. Press in control knob for
five (5) seconds (see Figure 26).
Note: You may be running this
heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds or more. This will al-
low air to bleed from the gas system.
WARNING:Burnerswillcome
on automatically within one
minute when the selector switch
is in the ON position after the
pilot is lit.
CAUTION:Donottrytoadjust
heatinglevelsbyusingtheequip-
ment shutoff valve.
WARNING: Make sure the
selector switch is in the OFF po-
sition when you are away from
home for long periods of time.
Heater will come on automati-
cally with selector switch in the
ON position.
7. With control knob pressed in, press
and release ignitor button. This will
lightpilot.Thepilotis attachedtothe
front burner. If needed, keep press-
ing ignitor button until pilot lights.
Note: If pilot does not stay lit, con-
tact a qualified service person or gas
supplierforrepairs.Until repairsare
made,light pilot with match.Tolight
pilot with match, see Manual Light-
ing Procedure on page 15.
8. Keep control knob pressed in for 30
seconds 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: Ifpilot goesout,repeatsteps
4 through 8.
9. Slightly push in and turn control
knob counterclockwise to
the ON position.
10. Wait one minute and switch selector
switch to the ON position to light
burners. Note: AUTO is only func-
tional when using GWMT1 or
GWMS2 optional accessories.
11. Set flame adjustment knob to any
level between HI and LO.
MSVFBPR REMOTE-READY
MODELS
Figure 26 - Control Knob and Ignitor Button Location (Shown as Supplied,
No Control Options)
Control Knob
Ignitor Button Selector Switch in OFF Position
Flame Adjustment Knob Ignitor
Electrode Pilot Burner
Figure 27 - Pilot
Thermocouple

15
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Turncontrolknobclockwise
to the OFF position.
2a. SetselectorswitchintheOFFposition.
2b. If Using Optional Hand-Held Re-
mote: Set selector switch in the OFF
positiontokeepfromdrainingbattery.
Shutting Off Burners Only (pilot
stays lit)
You may shut off the burners and keep
thepilot lit bydoing oneof the following:
1. Turncontrolknobclockwise
to the PILOT position.
2. UseremotecontrolmanualOFFbutton.
3. SetselectorswitchintheOFFposition.
MANUAL LIGHTING
PROCEDURE
1. Followsteps 1 through6underLight-
ing Instructions, page 14.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30
seconds after lighting pilot.After 30
seconds, release control knob. Now
follow steps 9 through 11, page 14.
NOTICE: You must light the pilot
before using the hand-held re-
mote control unit. See Lighting
Instructions on page 14.
OPTIONAL REMOTE
OPERATION
OPERATING
HEATER
Continued
Thermostat Control Operation
(Optional GHRCT Only) The thermo-
statcontrol settingon theremote control
unit can be set to any comfort level be-
tween WARMER and COOLER. The
burners will turn on and off automati-
cally to maintain the comfort level you
select.Theidealcomfortsettingwillvary
byhouseholddependingupontheamount
of space to be heated, the output of the
central heating system, etc.
Note: Allremotecontrolaccessoriesmust
bepurchasedseparately(seeAccessories,
page 23). Follow instructions included
with the remote control.
For wall thermostat operation, follow in-
structionsuppliedwiththermostatacces-
sory GWMT1. For wall switch operation
follow instructions supplied with
GWMS2.
Figure 28 - Setting the Remote Selector Switch, Control Knob, and Flame Adjustment
Knob for Remote Operation
Selector Switch in Remote Position (Optional Remote Control)
Control Knob in
On Position
Flame Adjustment Knob
ON
OFF
REMOTE
O
F
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O
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O
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L
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Continued
1. Afterlighting, letpilotflameburnfor
aboutone minute.Turncontrolknob
to ON position.Adjust flame adjust-
ment knob anywhere between HI
and LO. Slide the selector switch to
the REMOTE position. Note: The
burners may light if hand-held ON
button was on when remote selector
switch was last turned off. You can
nowturntheburnersonandoff with
the hand-held remote control unit.
IMPORTANT: Be sure to press the
ON/OFF buttons on the hand-held
remote control unit for up to 3 sec-
onds to assure proper operation.
IMPORTANT: Do not leave the se-
lector switch in the REMOTE posi-
tionwhen thepilot isnot lit.Thiswill
drain the battery.
GHRC Series Operation:
2a. PresstheON/OFF buttontoturnthe
burners on and off. When turning
burners off, the pilot will remain lit.
GHRCT Series Operation:
2b. Press theAUTO/ON/OFF button on
the hand-held remote control (see
Figure 29). The lights to the left of
the button will show AUTO, ON, or
OFF.
• In the ON mode, the burners will
ignite. The heater is in manual
mode when ON is lit.
Figure 29 - Thermostat Hand-Held Remote Control Unit Selections
(GHRCT Series Only)
Shows Temperature
Setting
Increases Room
Temperature in AUTO
Mode
Decreases Room
Temperature in AUTO
Mode
Turns Burners On or Off
and Allows You to
Choose the Auto Setting
The Log Heater will
Automatically Cycle
between Pilot and the
Heat Setting that has
been Selected

16
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
WARNING: Do not operate
heater between PILOT and HIGH
positions.
CAUTION:Donottrytoadjust
heatinglevelsbyusingtheequip-
ment shutoff valve
VARIABLE CONTROL
OPERATION
The variable control valve can be set to
anyheatsettingandflameheightdesired,
by simply turning the control knob until
that setting is attained. Even the lowest
setting provides realistic, dancing yellow
flames.Selectinghighersettingsproduces
greater heat output. This results in in-
creased heating comfort.
4. Wait five (5) minutes to clear out any
gas.Thensmellforgas,includingnear
thefloor.If yousmellgas,STOP!Fol-
low “B” in the safety information on
page 14, column 1 . If you don’t smell
gas, go to the next step.
5. Slightly depress and turn control
knob counterclockwise
C-clockwise
to
the PILOT position. Keep control
knob pressed in for five (5) seconds
(see Figure 30).
Note: You may be running this
heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds. This will allow air to
bleed from the gas system.
6. With control knob pressed in, press
and release ignitor button. This will
lightpilot.Thepilotis attachedtothe
burner (see Figure 16, page 10). If
needed,keep pressingignitor button
until pilot lights.
Note: If pilot does not light, contact
aqualifiedserviceperson orgassup-
plier for repairs. Until repairs are
made,light pilot with match.Tolight
pilot with match, see Manual Light-
ing Procedure.
OPERATING
HEATER
Continued
1. STOP! Read the safety information
page 14, column 1.
2. Make sure equipment shutoff valve
is fully open.
3. Pressinand turncontrolknobclock-
wise to the OFF position.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Open damper or window to vent
smell. This will only last a few
hours.
LIGHTING
INSTRUCTIONS
MSVFBP VARIABLE
MANUAL-CONTROL
MODELS
Figure 30 - Control Knob and Ignitor
Button Location
Control Knob
Ignitor Button
Figure 31 - Pilot
Thermocouple
Ignitor
Electrode
Pilot Burner
TO TURN OFF GAS TO
APPLIANCE
Shutting Off Heater
1. Pressinandturncontrolknob clock-
wise
Clockwise
to the HIGH position.
2. Turn the control knob clockwise
Clockwise
to the PILOT position.
3. Pressincontrolknoband turnclock-
wise
Clockwise
to the OFF Position.
Shutting Off Burners Only (pilot
stays lit)
1. Turn the control knob clockwise
Clockwise
to the HIGH position.
2. Pressinandturncontrolknob clock-
wise
Clockwise
to the PILOT position.
• IntheAUTOmode, thethermostat
in the hand-held remote unit con-
trols the room temperature.To in-
creasetheroomtemperature,press
the top arrow of theTEMP button.
To lower the room temperature,
press the bottom arrow of the
TEMP button. At higher settings
the heater will run longer.
IMPORTANT: This remote control
has been specially engineered to
takean air temperaturesampleev-
eryminutein the automode. Itwill
not respond immediately to the
temperature setting being turned
up or down.
IMPORTANT: The hand-held re-
motecontrolunit must benear the
heater. Do not keep the hand-held
remotecontrolunittoo closeto the
heater. The thermostat on the
hand-heldremotecontrolunit will
heat up too quickly and turn the
heater off.
3. To turn the burner off, press the
AUTO/ON/OFF button until OFF
lights. The pilot will remain lit.
IMPORTANT: To turn the pilot off,
manuallyturnthecontrolknobonthe
heater to the OFF position.
7. Keep control knob pressed in for 30
seconds after lighting pilot.After 30
seconds, release control knob.
Note: If pilot goes out, repeat steps
3 through 7.
• If control knob does not pop out
when released, contact a qualified
service person or gas supplier for
repairs.
8. Slightly depress and turn control
knob counterclockwise
C-clockwise
to
the HIGH position. The burners
should light. Set control knob to any
heat level between HIGH and LO.

17
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
Thermocouple
Pilot Burner
Figure 32 - Correct Pilot Flame Pattern
Figure 33 - Incorrect Pilot Flame Pattern
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
(Remote-Ready Models)
Figure 32 shows a correct pilot flame pat-
tern.Figure33showsanincorrectpilotflame
pattern.Theincorrectpilotflameisnotheat-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 33
• turn heater off (see To Turn Off Gas to
Appliance, page 15)
• seeTroubleshooting, pages 19 through21
Thermocouple
Pilot Burner
PILOT FLAME PATTERN
(Variable Manual-Control
Models)
Figure34showsacorrectpilotflamepattern.
Figure 35 shows an incorrect pilot flame
pattern.Theincorrectpilot flame is not heat-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 35
• turn heater off (see To Turn Off Gas to
Appliance, page 16)
• seeTroubleshooting, pages 19 through 21
Figure 34 - Correct Pilot Flame Pattern
Figure 35 - Incorrect Pilot Flame Pattern
BURNER PRIMARY AIR
HOLES
Air is drawn into the burner through the
holes in the fitting at the burner entrance.
These holes may become blocked with dust
or lint. Periodically inspect these holes for
any blockage and clean if needed. Blocked
air holes will create soot.
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
Ignitor
Electrode
Ignitor
Electrode
Pilot Burner
Thermocouple
Ignitor
Electrode
Thermocouple
Pilot Burner
Ignitor
Electrode
OPERATING
HEATER
Continued
MANUAL LIGHTING
PROCEDURE
1. Followsteps 1 through5underLight-
ing Instructions, page 16.
2. Pilot is located inside stove cavity at-
tached to burner. Lift off top grate
to allow access to pilot.
3. Depress control knob and light pilot
with match.
4. Keep control knob pressed in for 30
seconds after lighting pilot.After 30
seconds, release control knob.
5. Place top grate back into position.
Now follow step 8 under Lighting
Instructions, page 16.

18
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner, and circu-
lating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heaterinspectedyearlybyaquali-
fied service person. Heater may
needmorefrequentcleaningdue
to excessive lint from carpeting,
pet hair, bedding material, etc.
LOGS
• If you remove logs for cleaning, refer to
Installing Gas Log Heater into Stove,
page 10, to properly replace logs.
• Replace log(s) if broken or chipped
(dime-sized or larger).
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flamepresent.Allroundburnerflameholes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
Reviewyourvideoincludedwithyourheater
for additional cleaning instructions.
CLEANING BURNER
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet holes allow the proper
amount of air to mix with the gas. This pro-
videsacleanburningflame.Keeptheseholes
clear of dust, dirt, lint, and pet hair. Clean
these air inlet holes prior to each heating
season.Blockedairholeswillcreatesoot.We
recommendthatyoucleantheuniteverythree
months during operation and have heater in-
spected yearly by a qualified service person.
Wealsorecommendthatyoukeeptheburner
tube and pilot assembly clean and free of
dustanddirt.Tocleanthesepartswerecom-
mend using compressed air no greater than
30 PSI. Your local computer store, hard-
ware store, or home center may carry com-
pressed air in a can. You can use a vacuum
cleaner in the blow position. If using com-
pressed air in a can, please follow the direc-
tions on the can. If you don't follow direc-
tionsonthecan, youcoulddamagethepilot
assembly. Note: Removing the rear panel
(Figure 5, page 8) and top grates of your
stove will make cleaning easier.
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 36).
3. Blow air through the ports/slots and
holes in the burner.
Figure 36 - Injector Holder On Outlet
Burner Tube
4. Check the injector holder located at the
end of the burner tube again. Remove
any large particles of dust, dirt, lint, or
pet hair with a soft cloth or vacuum
cleaner nozzle.
5. Blow air into the primary air holes on
the injector holder.
6. In case any large clumps of dust have
now been pushed into the burner repeat
steps 3 and 4.
Clean the pilot assembly also. A yellow tip on
thepilotflameindicatesdustanddirtinthepilot
assembly. There is a small pilot air inlet hole
about two inches from where the pilot flame
comesoutofthepilotassembly(seeFigure37).
With the unit off, lightly blow air through the
airinlethole.Youmayblowthroughadrinking
straw if compressed air is not available.
Burner
Tube
Injector Holder
(May Be Brass
or Aluminum
Depending on
Model)
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet Hole
Ports/Slots
Figure 37 - Pilot Inlet Air Hole
TRANSPORTING STOVE
Porcelainenamelcoatingscontainglassand
arebrittle.Topreventcrackingoftheporce-
lain finish, do not transport stove with top
grates in place.

19
105986
OWNER’S MANUAL
For more information, visit www.desatech.com
TROUBLESHOOTING WARNING: Turn off heater
andletcoolbeforeservicing.Only
aqualifiedservicepersonshould
service and repair heater.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
POSSIBLE CAUSE
1. Ignitor electrode not connected to igni-
tor cable
2. Ignitor cable pinched or wet
3. Broken ignitor cable
4. Bad piezo ignitor
5. Ignitor electrode broken
6. Ignitor electrode positioned wrong
1. Gas supply turned off or equipment
shutoff valve closed
2. Control knob not in PILOT position
3. Control knob not pressed in while in
PILOT position
4. Air in gas lines when installed
5. ODS/pilot is clogged
6. Gas regulator setting is not correct
7. Depleted gas supply
1. Control knob not fully pressed in
2. Control knob not pressed inlong enough
3. Equipment shutoff valve not fully open
4. Pilot flame not touching thermocouple,
which allows thermocouple to cool,
causing pilot flame to go out. This prob-
lem could be caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged OD S/pilot
5. Thermocouple connection loose at con-
trol valve
6. Thermocouple damaged
7. Control valve damaged
1. Burner orifice clogged
2. Inlet gas pressure is too low
3. Burner orifice diameter is too small
4. Thermopile leads disconnected or im-
properly connected
5. Burners will not come on in remote
position
REMEDY
1. Reconnect ignitor cable
2. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
3. Replace ignitor cable
4. Replace piezo ignitor
5. Replace piezo ignitor
6. Replace piezo ignitor
1. Turn on gas supply or open equipment
shutoff valve
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
position
4. Continue holdingdown control knob.Re-
peatignitingoperationuntil airisremoved
5. Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
6. Replace gas control
7. Contact local propane/LP gas company
1. Press in control knob fully
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Fully open equipment shutoff valve
4. A)Contactlocalpropane/LPgascompany
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
5. Hand tighten until snug, then tighten
1/4 turn more
6. Replace thermocouple
7. Replace control valve
1. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
2. Contact local propane/LP gas company
3. Replace burner orifice
4. Reconnect leads (see Wiring Diagram,
page 22)
5. Replace battery in transmitter and
receiver
OBSERVED PROBLEM
When ignitor button is pressed, there is no
spark at ODS/pilot
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
ODS/pilot lights but flame goes out when
control knob is released
Burner does not light after ODS/pilot is lit
Note: For additional help, visit DESA
International’stechnicalservicewebsite
at www.desatech.com.
Note: Alltroubleshootingitemsarelistedin
order of operation.
www.desatech.com Continued

20
105986
VENT-FREE PROPANE/LP GAS STOVE HEATER
SUN VALLEY STOVE COMPANY
For more information, visit www.desatech.com
OBSERVED PROBLEM
Delayed ignition burner
Burner backfiring during combustion
Slightsmokeorodor during initial operation
Moisture/condensationnoticedonwindows
Heater produces a whistling noise when
burner is lit
Dark residue on logs or inside of fireplace
Whitepowderresidueformingwithinburner
box or on adjacent walls or furniture
Remote does not function
REMEDY
1. Contact local propane/LP gas company
2. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
1. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
2. Replace damaged burner
3. Replace gas control
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 18)
2. Replace gas control
3. Problem will stop after a few hours of
operation
1. Refer to Air for Combustion and Venti-
lation requirements (page 4)
1. Turn control knob to LO position and
let warm up for a minute
2. Operateburner untilair isremoved from
line.Have gasline checkedby localpro-
pane/LP gas company
3. Observe minimum installation clear-
ances (see page 7)
4. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
1. Properly locate logs (see Installing Gas
Log Heater Into Stove, page 10 )
2. Eliminate source of drafts around heater
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
4. Remove blockage or replace burner
1. Turn heater off when using furniture
polish, wax, carpet cleaners, or similar
products
1. Replace 9-volt batteries in receiver and
remote control
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Manifold pressure is too low
2. Burner orifice clogged
1. Burner orifice is clogged or damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing processes
and logs curing
1. Not enough combustion/ventilation air
1. Turning control knob to HI position
when burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
1. Improper log placement
2. Drafts or other air currents affecting
flame pattern
3. Air holes at burner inlet blocked
4. Burner flame holes blocked
1. When heated, vapors from furniture pol-
ish, wax, carpet cleaners, etc. turn into
white powder residue
1. Battery is not installed. Battery power
is low
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