United States Stove HOTBLAST 1200G User manual

1
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
Model 1200G
SOLID FUEL WARM AIR FURNACE
Owners Manual
C
O
M
P
A
N
Y
U
N
I
T
E
D
S
T
A
T
E
S
S
T
O
V
E
C
S
S
U
WARNOCK HERSEY
R
*FOR PARALLEL INSTALLATION WITH AN
EXISTING FORCED AIR, GAS OR OIL
FIRED FURNACE (U.S. ONLY)
*FOR INSTALLATION AS A CENTRAL FURNACE
DO NOT USE THIS FURNACE IN A MOBILE HOME OR TRAILER
Improper Installation May
Void Your Warranty
Save This Manual For
Future Reference
CAUTION:
Read All Instructions Carefully Before
StartingtheInstallationorOperatingthe
Furnace.
851446A 02/01
H
T
B
L
ST
A
O
UNITED STATES STOVE COMPANY
227 Industrial Park Road
P.O.Box 151
South Pittsburg, TN 37380
[phone]
www.USSTOVE.com

2•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
TOOLS AND MATERIALS NEEDED
TOOLS
Pencil
6 Foot Folding Rule or Tape
Tin Snips
Drill, Hand or Electric
Drill Bit (For Sheet Metal Screws) 1/8" Dia.
Screw Driver (Blade-Type)
Gloves
Sabre Saw
5/16" Nut Driver or
5/16" Socket with Rachet
MATERIALS
6" Pipe, 6" Elbow, Collar and Thimble; as required
(24 gauge min.)
1/2" Sheet Metal Screws
6" Inside Diameter Listed Residential Type or
Building Heating Appliance Chimney or Existing
Masonry Chimney (SEE Page 8).
Electrical Wiring
6" Draft Regulator
1/2" Conduit
(Conduit Connectors)
Furnace Cement (Manufacturer Recommends:
Rutland Black - Code 78 or Equivalent
Plenum and Duct Work as Required
CONGRATULATIONS!
You've purchased one of America's Finest Wood Burning Furnaces.
By heating with wood you're helping to CONSERVE AMERICA'S ENERGY!
Wood is our Renewable Energy Resource. Please do your part to preserve our
woodsupply.Plantatleastonetreeeachyear.Futuregenerationswillthankyou.
NOTE: YOUR UNIT MUST BE INSTALLED BY A QUALIFIED FURNACE
INSTALLER. IMPROPER INSTALLATION COULD VOID YOUR
WARRANTY! NOTE: (See Page 5, First Paragraph)

3
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
CAUTION
Your Furnace has the following labels. Read and obey all labels.
REFER TO MARKINGS ON THE APPLIANCE FOR ADDITIONAL INFORMATION.
CAUTION!
INSPECT FLUE PIPES, FLUE PIPE JOINTS AND FLUE PIPE SEALS
REGULARLYTO ENSURE THAT SMOKE AND FLUE GASES ARE NOT
DRAWN INTO,ANDCIRCULATEDBY,THE AIR CIRCULATIONSYSTEM.
CAUTION!
CLEANOUT OF THE HEAT EXCHANGER, FLUE PIPE, CHIMNEY, AND
DRAFT INDUCER IF USED,IS ESPECIALLY IMPORTANT AT THE END
OF THE HEATING SEASON TO MINIMIZE CORROSION DURING THE
SUMMER MONTHS, CAUSED BY ACCUMULATED ASH.
If this heater is not properly installed, a house
fire may result. For your safety, follow the in-
stallation directions. Contact local building or fire
officials about restrictions and installation in-
spection requirements in your area.
SAFETY
NOTICE:
DANGER: RISK OF FIRE OR EXPLOSION.
DO NOT burn garbage, gasoline, drain oil, or other flammable liquids.
WARNING: FIRE HAZARD.
DO NOT operate with fire draft exceeding .06 inches W.C.
DO NOT operate with fuel loading or ash removal doors open.
DO NOT store fuel or other combustible material within the marked installation clearances.
DO NOT store fuels, paints, thinners, flammable liquids, or other highly volatile substances
in the furnace room.
CAUTION: HOT SURFACES
Keep children away.
Do not touch during operation.
WARM-AIR SUPPLY-DUCT SYSTEM MUST BE CONSTRUCTED ONLY OF METAL

4•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
Read these rules and the instructions carefully. Failure to follow them will cause a hazard that could result in
death, serious bodily injury, and/or property damage.
Check your local codes. This installation must comply with their rulings.
Do not install this furnace in a mobile home or trailer.
Always connect this furnace to a chimney and vent to the outside. Never vent to another room or
inside a building.
Do not connect this furnace to an aluminum Type B gas vent. This is not safe and is prohibited by the
National Fire Protection Association Code. This furnace requires a masonry or listed factory built
chimney for residential type or building heating appliance chimney. Use a 6" diameter chimney or
larger, that is high enough to give a good draft. (See Page 8)
Be sure that if a masonry chimney is used, it is safely constructed and in good repair. Have the
chimney inspected by the Fire Department or an inspector.
Inspect chimney connector and chimney before and frequently during the heating season for any
deposit of creosote or soot which must be removed (see Chimney Maintenance, page 21.)
Provide air for combustion into the room where the furnace is located. If the intake is not in the same
room, air must have free access to the room.
CAST IRON PARTS MUST BE "SEASONED" TO AVOID CRACKING. BUILD ONLY SMALL FIRES
ON FIRST USE.
To prevent injury, do not allow anyone to use this furnace who is unfamiliar with the correct operation
of the furnace.
For further information on using your furnace safely, obtain a copy of the National Fire Protection
Association (NFPA) publication "Chimney's, Fireplaces and Solid Fuel Burning Appliances" NFPA
211. The address of the NFPA is Batterymarch Park, Quincy, MA 02269.
Keep the ashpit section free of excess ashes. Do not allow ashes to stack higher than the sides of the
ash pan.
DISPOSAL OF ASHES - Place ashes in a metal container with a tight fitting lid. Keep the closed
container on a noncombustible floor or on the ground, well away from all combustible materials. Keep
the ashes in the closed container until all cinders have thoroughly cooled. The ashes may be buried
in the ground or picked up be a refuse collector.
CAUTION - The special paints used on your furnace may give off some smoke while they are curing
during first few fires. Build small fires at first. The metal used in construction of the furnace and duct
work has a light coating of oil. This could give off smoke and/or odors from registers when furnace is
used for the first time. This should disappear after a short period of time. Once this burn-off has
occurred, it should not reoccur.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
RULES FOR SAFE INSTALLATION AND OPERATION

5
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
YourSupplementalFurnaceisdesignedtobe
asupplementalorcentralheatingsourceforyour
home. This solid fuel furnace may be installed in
conjunction with a properly operating central fur-
nace that is listed or certified in accordance with
nationally recognized safety standards and
equipped with the required controls and other
safetyfeaturesandwhichhasbeeninstalledwith
appropriatestandardsof NationalFireProtection
Associationwith installationclearancesspecified
inthefurnacenameplatemarking.Theinstallation
mustbe accomplishedbyaqualifiedagency(one
who is engaged in, and is responsible for, or is
thoroughlyfamiliarwiththeinstallationand opera-
tion of the gas, oil, and solid fuel burning heating
appliances, who is experienced in such work,
familiar with all precautions required, and has
compliedwithalltherequirementsoftheauthority
having jurisdiction.) The installation shall be in
strictaccordancewiththemanufacturer'sinstalla-
tion instructions furnished with the solid fuel fur-
nace.
Thechimneyconnectorofthefurnaceistobe
installed to provide clearances to combustible
material not less than specified in the individual
classifications and marked on the furnace. The
chimneyconnectormustbeconnectedtoa chim-
neysuitableforusewithresidentialtypeorbuilding
heatingapplianceswhichburnsolid fuel.
The furnace is designed to operate in either
parallel or series air flow arrangement with the
central furnace or as a central furnace.
HOW THE FURNACE FUNCTIONS
Your Furnace is designed to be installed in a parallel air flow arrangement with a gas or oil-fired
forced air upflow-type central furnace, or it may be installed as a central furnace.
CARING FOR PAINTED PARTS - This furnace has a painted outside jacket, which is durable but it
will not stand rough handling or abuse. When installing you furnace, use care in handling. Clean with
soap and warm water when furnace is not hot. DO NOT use any acids or scouring soap, as these
wear and dull the finish. DISCOLORATION WILL OCCUR IF THE FURNACE IS OVERFIRED.
FOLLOW OPERATING INSTRUCTIONS CAREFULLY.
Keep the feed and ash doors closed at all times except while tending the furnace.
14.
15.
RULES FOR SAFE INSTALLATION AND OPERATION
PARALLEL INSTALLATION: The design is such
thatwhentheblowercomeson,thebloweronthe
central system also comes on.
The blower will only come on when the
temperatureintheplenumhasreachedthe setting
ontheblowercontrol.Thisistoinsurethatthereis
sufficient warm air in the system to make it
efficient for the unit to operate. When the central
system thermostat calls for heat, the central sys-
tem will operate by the burner igniting and the
blowercomingon.Itispossiblethatbothsystems
will operate simultaneously. It is recommended
that for the most efficient use of your
SupplementalFurnace,thatitbefiredasmuchas
possible in order to reduce the demand on your
existing central heating system.
The warm air supply outlet of the
supplementaryfurnace shall notbe connected to
the cold air return inlet of the central furnace
because the possibility exists of components of
the central furnace overheating and causing the
centralfurnace to operateotherthan is intended.
CENTRALFURNACEINSTALLATION:Asacen-
tral furnace, the unit functions independently of
any other system. The blower will come on when
theplenum temperature reachesthe setting on
theblowercontrol.

6•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
MODEL 1200G DIMENSIONS
FIG. 1

7
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
1.
2.
3.
4.
FIG. 3
The furnace should be located in the same
room as the central system and as close as
possible,butnocloserthan9".Thereshouldbe
nowall between the furnaceandthe warm air
outlet duct that is connected directly to the
warm air outlet plenum of the central furnace.
See Fig. 2.
The unit will require installation with the
following clearances:
Unit to sidewall . . . . . .12" (305 mm)
Unit to backwall . . . . . 30" (760 mm)
Chimney connector pipe to sidewall
. . . . . . . . . . . . . . . . . . 21" (530 mm)
Chimney connector pipe to backwall
. . . . . . . . . . . . . . . . . . 18" (460 mm)
Hot air ducts to combustibles
. . . . . . . . . . . . . . . . . . . 6" (150 mm)
NOTE: Install only on a noncombustible
floor. (REFER TO FIG. 2 & 3)
Place the furnace on a noncombustible floor.
Check figures 2 and 3. Be sure you have the
clearances shown from the furnace and the
connector pipe to combustible surfaces. If you
have a solid brick or stone wall behind your
heater, you can place the furnace as close as
youwishtothewall.Ifthewallisonlyfacedwith
brick or stone, treat it as a combustible wall.
LOCATING THE FURNACE FIG. 2

8•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
LISTED FACTORY BUILT CHIMNEY
Carefully follow chimney manufacturer's instructions. Use only a Listed Residential Type or Building Heating
ApplianceChimney.Ifyourchimneystarts at the ceiling (Fig.5),youwillneedenough6"pipetoreachtheceiling.
The top of the chimney must be at least 3 feet above the roof and be at least 2 feet higher than any point of the
roof within 10 feet (Fig. 5).
FIG. 5
MASONRY CHIMNEY
Beforeusinganexistingmasonrychimney,cleanthechimneyandinspectthefluelinertobesureitissafetouse.
Make repairs before attaching the furnace. See Page 4, item 5. Look at Fig. 4. The connector pipe and fittings
you will need to connect directly to a masonry chimney are shown.
Thechimneyconnectionshouldbeasshortaspossible. Iftheconnectorpipemustgothroughacombustiblewall
beforeenteringthemasonrychimney,consultaqualifiedmasonorchimneydealer.Theinstallationmustconform
to local fire codes, and N.F.P.A. 211.
DO NOT CONNECT THIS FURNACE TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
Thechimneyusedforafurnacemustnotbeusedtoventilatethecellarorbasement.Ifthereisacleanoutopening
at the base of the chimney, close it tightly.
FIG. 4
CHIMNEY CONNECTION

9
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
RULES FOR CONNECTOR PIPE INSTALLATION
FIG. 6
Thecrimpedendofthechimneyconnector
fits inside the furnace flue collar. Install
additional chimney connector and elbow
with the CRIMPED END TOWARD THE
FURNACE. This will allow any condensa-
tioninthe flue to runbackintothefurnace.
Use 6" dia. (minimum 24 gauge) black
chimneyconnector.
Slopeanyhorizontalpipeupwardtowardthe
chimney at least 1/4 inch for each foot of
horizontalrun.
You must have at least 18 inches of
clearance between any horizontal piping
and the ceiling. (See Fig. 3)
The chimney connector must not extend
into the chimney flue (See Fig. 6).
Sealeachchimneyconnectorpipejointwith
furnace cement. Also seal the pipe at the
chimney.
Use3sheetmetalscrewsateachchimney
pipe joint to make the piping rigid.
Thechimneyconnectormayincludeasec-
tionforabarometricdraftregulatorbetween
thefurnaceandthechimney(Fig.4,5,6,&
7). The barometric draft regulator must be
installedinthesameroom(samepressure
zone) as the furnace.
Installthebarometricdraftregulatorstrictly
inaccordancewiththeinstructionsthatare
providedwiththebarometricdraftregulator.
Asoliddampercanbeplacedbetweenthe
barometricdraftregulatorandthechimney.
(Fig. 4, 5, 6, & 7)
1.
2.
3.
4.
5.
6.
7.
8.
9.
FIG. 7
Adjusting the
Barometric Draft Regulator
Drillaholeinthechimneyconnectorwithin
18" of the flue collar below the barometric
draft regulator just large enough for the
tube of the manometer.
Build a fire after all chimney connections
have been made.
Use a manometer to measure the draft in
the flue. (U.S. Stove Model DG-26)
Adjust the barometric draft regulator to
obtain a draft of 0.05" - 0.06" W.C. under
stable conditions.
1.
2.
3.
4.

10 •DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
ASSEMBLY OF FURNACE
Your furnace requires the following items
tobeassembledorinstalledbytheservice
person:
Feed Door Handle
Feed Door Latch
Ash Door Handle
Ash Door Latch
Blower and Blower Control
Electrical Connections
Remove all parts from inside the
furnace and inspect for damage,
including the firebrick as some
breakage could occur during
shipment.
Assemble the feed door handle and
the ash door handle as shown in
Figure 8.
Installthe latches asshown in Figure
9.
1.
2.
3.
FIG. 8
FIG. 9

11
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
BLOWER & COMPONENT ASSEMBLY - FIG. 10
JUNCTION BOX
MOUNTING
BRACKET
1. Attach the Honeywell Limit Control to the bracket as shown below, using (2) of the #12 x 3/4" Tek Screws
provided in the parts bag.
2. Attach the 2x4 Junction Box to the bracket. Use (2) of the #12 x 3/4" Tek Screws provided. Also, attach
the flexible conduit from the Limit Control to the junction box using one of the Romax Conduit fitting and
red anti-short bushing provided in the parts bag.
3. Unbox the blower and attach to the unit by sliding the flange on the blower between the cabinet back and
the unit bottom.
4. Now attach the blower to the unit by lining up the two holes and mounting blower with (2) 1/4-20 x 3/4"
screws.
5. Attach the conduit from the blower to the junction box using one of the Romax Conduit fitting and red
anti-short bushing.
6. Run the wires from the house supply into the junction box. Use the Romax Cable Clamp and red anti-
short bushing provided.
7. Wire the components as shown in the wiring diagram on page 12.
8. Replace junction box cover.
4
5
LIMIT CONTROL
MOUNTING
BRACKET
3
2
1
CONDUIT
CONDUIT TWISTS INTO
MOTOR HOUSING

12 •DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
MODEL 1200Q WIRING DIAGRAM - FIG. 11
LIMIT CONTROL
BLACK
WHITE
WHITE
BLACK
WHITE
BLACK
GREEN
2 x 4 JUNCTION BOX
BLOWER
TO
HOUSE
SUPPLY
NOTE: GROUND HOUSE
SUPPLY TO INSIDE OF
JUNCTION BOX.

13
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
Installation
Pleasesee allmethodsofInstallation
inAppendixattherearofthisbooklet.
Thisisafurnace,notafreestandingstove.Youmust
directheatedairfrom12"outletawayfromthefurnace,
or it will not function properly.
1. This installation must be done by a qualified
heatingequipmentinstaller.
2. The installation is to be done in compliance with
National Fire Protection Association installation
standards: No. 89M, 90B, 211, 70 (National Electric
Code) and Uniform Mechanical Code 913, 6-4, in the
stateswhereapplicable.(Theircodeoffersconnecting
smoke pipe connectors into chimney with other fuel
burningappliances.)
3. Rooms large in comparison with size of the
appliances:
a)AWoodBurningFurnaceneedsairfor combus-
tion and circulation to house.
b)Provisionmustbemadetomakeupthisairand
not starve gas or oil furnace of combustion air.
c) Have "Authority Having Jurisdiction"
determinethatairisofadequatemakeup. (Reference
N.F.P.A.Nos.30&54,CodeforInstallationofGas&Oil
Equipment)
4.Have"AuthorityHavingJurisdiction"to inspectall
chimneysandinstallationsforadequateventingandfor
compliance with standard and local codes and regula-
tionsregardinginstallationofwoodburningappliances.
5. Installation of Supplemental Heat Application to
ExistingCentralSystem.(SeeFig.12fortypicalinstal-
lation.)
a) Place Wood Burning Furnace so that the
chimney connector will be as short as possible and
avoiding unnecessary sharp turns in the smoke pipe
connector and the installation of devices that would
create excessive resistance to the flow of flue gases.
b)LocatetheWoodBurningFurnaceascloseas
practical to the existing central hot air heating system,
maintainingclearancesasstatedonthelabellocatedon
the side of the furnace.
c) Clearances from combustible materials must
be complied with as stated on the label below the fuel
door:
Theinstallationmustbemadeonlyonanoncombustible
floor. d)Installthesmokepipeconnectortothechimney
with26-gaugepipeandelbows(tobepurchasedsepa-
rately), maintaining the proper clearances for the spe-
cific model. Make sure that the proper clearances as
stated on the label and earlier in this manual are
maintained. Seal the smoke pipe in the chimney with
furnace cement. (The chimney connector shall be se-
curely supported, and joints fastened with sheet metal
screws or rivets.)
e) Install 8" diameter heat pipe to plenum of the
centralhotairfurnace.Use26-guagepipeand connec-
tors(tobepurchasedseparately).(SeeFig.13)Ifcentral
air conditioning is installed in the plenum, install heat
pipe above the air conditioning unit. Secure heat pipe
connection with supports and sheet metal screws.
f) Connect electrical supply in the electrical
junction box that is mounted on the back of the Wood
Burning Furnace. See Wiring Diagram (Fig. 11). Re-
move the cover from electrical junction box connect
powersupplywirestowiresdesignated,usingwirenuts.
Thepowercordsuppliedmaybeusedforinstallation,if
permitted by local codes and regulations. If the power
cordsuppliedcannotbeused,thepowersupplywiring
must be 90 degrees Centigrade in a metal cable and
shouldbe completed bya qualified installercomplying
with NFPA Standard No. 70 and local codes.
g)OptionalPlenumFanControlSwitch(PartNo.
11PCS) is available for installation on the plenum of
central hot air heating furnace. The purpose of this
switchistoactivatethecirculatingfanofthecentralhot
airheatingfurnacewhenthetemperatureintheplenum
exceeds120°Fahrenheit.Theswitchwouldactivatethe
fanat120°Fahrenheit,andwouldshutoffthecirculating
fan when the temperature in the plenum is reduced to
100°Fahrenheit.Thisavoidsoverheatingtheplenum.
Theelectricalsupplyforoperationofthisfancontrol
switchistobeobtainedfromsameelectricalsupplyas
thecentralhotairheatingsystem.(SeeFig.13)Follow
theinstructions ofthe wiring diagram (Fig.14). Do not
make connections across Limit Control in the furnace.
Make electrical connections in electrical junction
boxpresentlymountedonthefurnace.Makeelectrical
connectionsinaccordancewithNFPAStandardNo.70
and local codes in the power supply junction box (See
Fig.14).Thewiringtocompletetheconnectionsshould
be 18 AWG minimum copper and 90° Centigrade in a
cable.
Unit to Combustible:
Front: 48"
Back: 30"
Sides: 12"
Plenum to Ceiling: 6"
Pipe to Combustible:
Sides: 21"
Back: 18"
NOTE: THE MAXIMUM STATIC PRESSURE AT THE CENTRAL OR COMBINED PLENUM MUST NOT
EXCEED 0.12 INCHES WATER COLUMN.

14 •DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
POWER FAILURE INSTRUCTIONS:
Operation after loss of power
Remove filter if provided.
Do not expect to keep home at normal temperatures.
Do not load fuel above bottom of feed door.
Set Fuel door and Ash door spin draft maximum closed
per the factory installed stops.
1
2
3
4
(U.S. ONLY)
FIG. 12

15
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
CENTRAL INSTALLATION (U.S. & CANADA)
ADD-ON INSTALLATION (U.S. ONLY)

16 •DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
ALTERNATIVE PARALLEL INSTALLATION WIRING DIAGRAM - FIG. 14
TO GAS/OIL/ELECTRIC
TRANSFORMER
HOTBLAST
COMBINATION CONTROL
LIMIT
FAN
JUMPER IN
H
H
POWER
SUPPLY
GAS/OIL/ELECTRIC
POWER SUPPLY
JUNCTION BOX
CENTRAL
FURNACE
BLOWER
MOTOR
WOOD
FURNACE
BLOWER
MOTOR
CAUTION!
DO NOT CONNECT
PLENUM FAN CONTROL
SWITCH ACROSS FURNACE
LIMIT CONTROL.

17
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
YourHotblast Furnace isfor burning woodonly.
WOODBURNING: (1)useHardwood,18"to26",splitandairdried(seasoned)forsixmonths. (2)setthermostat
to "HIGH" before opening feed door. (3) add wood to a convenient level.
CAUTION
NEVER USE GASOLINE, GASOLINE-TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR
FLAMMABLELIQUIDSTOSTARTOR"FRESHENUP"A
FIRE IN THE FURNACE.
CAUTION
NEVER STORE FLAMMABLE LIQUIDS, ESPECIALLY
GASOLINE, IN THE VICINITY OF THE FURNACE.
CAUTION
DO NOT OPERATE WITH THE FEED AND/OR ASH
DOOROPEN.THISFURNACEISDESIGNEDFORTHER-
MOSTATIC OPERATION. OPERATION WITH ANY OF
THESEDOORSOPENWILLOVERHEATANDDAMAGE
THE FURNACE.
OPERATING INSTRUCTIONS
The temperature in the plenum of the warm air furnace at
which the blower turns on or turns off, is controlled by the
setting of the pointers in the blower limit control (See Fig.
11). These pointers may be adjusted through their entire
range of settings to achieve the desired warm air output
from the furnace. (See Fig. 15 Below)
1.
2.
3.
Move both pointers towards the right (counter clock-
wise)-thisincreasesthetemperaturesettingatwhich
the blower will turn on and off.
Move both pointers towards the left (clockwise) - this
decreasesthetemperaturesettingatwhichtheblower
will turn on and off.
Move pointers away or apart from each other- this
increases the time that the blower will run on each
warm cycle. FIG. 15
ADJUSTING BLOWER LIMIT CONTROL SETTINGS
BLOWER LIMIT
POINTER AND STOP
BLOWER FAN
"ON" POINTER
BLOWER FAN
"OFF" POINTER

18 •DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
Do not expect a furnace to draw. It is the chimney that
creates the draft. Smoke spillage into the house or exces-
sive build-up of water or creosote in the chimney would
keep it from functioning properly. Correct the problem
before using furnace. Possible causes are:
The connector pipe may be pushed into the chimney
too far, stopping the draft (Fig. 6).
Do not connect two furnaces or a stove and a furnace
into the same chimney flue.
The chimney used for a furnace must not be used to
ventilate the cellar or basement. If there is a cleanout
opening at the base of the chimney, it must be closed
tightly.
1.
2.
3.
If the chimney is operating too cool, water will condense in
thechimneyandrunbackintothefurnace.Creosoteforma-
tion will be rapid and may block the chimney. Operate the
furnace at a high enough fire to keep the chimney warm
preventing this condensation.
Ifthefireburns wellbutsometimessmokesor burnsslowly,
it may be caused by the chimney top being lower than
anotherpartofthehouseoranearbytree.Thewindblowing
overa house ora tree,fallson topof the chimneylike water
over a dam, beating down the smoke. The top of the
chimney should be at least 3 feet above the roof and be at
least 2 feet higher than any point of the roof within 10 feet
(Fig. 5).
See page 28 for list of trouble shooting tips.
4.
5.
6.
A DRAFT READING OF .05 TO .06 W.C. IS SUGGESTED FOR PROPER BURNING
OF THIS UNIT WHEN USING WOOD.
SERVICE HINTS
Creosote and Soot - Formation and Need for Removal
When wood is burned slowly, it produces tar and other
organic vapors, which combine with expelled moisture to
form creosote. The creosote vapors condense in the rela-
tively cool chimney flue of a slow-burning fire. As a result,
creosote residue accumulates on the flue lining. When
ignited, this creosote makes an extremely hot fire.
The chimney should be inspected at least twice monthly
duringtheheatingseason todetermineifacreosote orsoot
build-up has occurred.
If soot or creosote has accumulated, it should be removed to
reduce the risk of a chimney fire.
Chimney fires burn very hot. If the chimney catches fire, imme-
diatelycallthefiredepartment,thenreducethefirebyclosingthe
inletaircontrol. Pouralargequantity ofcoarsesalt, bakingsoda
or cool ashes on top of the fire in the firebox.
CAUTION
A Chimney fire may cause ignition of wall studs or rafters
which you thought were a safe distance from the chimney.
If you have a chimney fire, have your chimney inspected by
a qualified person before using again.
CHIMNEY MAINTENANCE

19
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
MODEL 1200G - PARTS

20 •DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
KEY NO. DESCRIPTION QTY. PART NO.
1 FIREBOX WELDMENT 1 69121
2 CABINET SIDE 2 24568
3 CABINET TOP WELDMENT 1 69151
4 FIRE BRICK 16 89066
5 GRATE 4 40288
6 ASH PAN WELDMENT 1 68228
7 SMOKE CURTAIN 1 23800
8 1/4-20 x 1-1/4 BOLT 2 83445
9 SMOKE CURTAIN CLIP 2 23787
10 1/4-20 KEP NUT 9 83250
11 BAFFLE 1 24576
12 FEED DOOR HINGE 1 24959
13 1/4-20 x 1/2 BOLT 9 83409
14 HINGE PIN 4 83872
15 FEED DOOR GASKET 4.58FT 88066
16 1/2-13 LOCK NUT 2 83444
17 1/2" SAE FLAT WASHER 2 83835
18 3/8-16 LOCK NUT 3 83274
19 ASH DOOR HINGE 1 24960
20 DOOR LATCH 2 24958
21 FEED DOOR (PAINTED) 1 24962
22 DRAFT CAP (PAINTED) 3 23859
23 3/8-16 x 1-3/4 BOLT 3 83345
24 DOOR HANDLE 2 89864
25 SPRING HANDLE 2 89574
26 ASH DOOR (PAINTED) 1 24963
27 ASH DOOR GASKET 3.33FT 88066
28 BLOWER ASSEMBLY 1 69158
29 FAN LIMIT ASSEMBLY 1 69129
- FAN LIMIT 1 80145
- 3/8" FLEXIBLE CONDUIT 1.0FT 80061
- 3/8" FLEXIBLE CONDUIT .66FT 80061
- CONDUIT FITTING 2 80086
- 3/8 ROMAX CABLE CONNECTOR 1 80362
- 2 x 4 JUNCTION BOX 1 80125
- JUNCTION BOX COVER 1 80126
MODEL 1200G
- PARTS LIST