USSC Hotblast 1200Q User manual

1
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
Model 1200Q
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.
851282A 4/99
H
T
B
L
ST
A
O
UNITED STATES STOVE COMPANY
227 Industrial Park Road
P.O.Box 151
South Pittsburg, TN 37380
[phone]

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
Associationwithinstallationclearances specified
inthefurnacenameplatemarking.Theinstallation
mustbe accomplishedbyaqualifiedagency(one
who is engaged in, and is responsible for, or is
thoroughlyfamiliarwiththeinstallationandopera-
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
chimneyconnectormustbeconnectedtoachim-
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
temperatureintheplenum has reached the set-
ting on the blower control. This is to insure that
there is sufficient warm air in the system to make
itefficientfortheunittooperate.Whenthecentral
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 1200Q 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 con-
densation in the flue to run back into the
furnace. Use 6" dia. (minimum 24 gauge)
black chimney connector.
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
providedwiththebarometricdraft regu-
lator.
Asoliddampercanbeplacedbetweenthe
barometricdraftregulatorandthe chim-
ney. (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 as
shownin Figure8. Install thelatch as
illustrated in Figure 9.
Assemble the ash door handle the
sameasshowninfigure8. Installthe
latch as shown in Figure 10.
1.
2.
3.
FIG. 9 FIG. 10
NOTE: YOU MAY NEED TO
ADJUST THE LATCH
FORWARDORBACKWARD
TOASSUREPROPERFITOF
THE DOOR.
FIG. 8