USSC Irondale USG890 User manual

853351C-1403i
A MAJOR CAUSE OF FIRES IS FAILURE TO MAINTAIN REQUIRED CLEARANCES (AIR SPACE) TO COMBUSTIBLE
MATERIALS. IT IS OF UTMOST IMPORTANCE THAT THIS PRODUCT BE INSTALLED ONLY IN ACCORDANCE WITH
THESE INSTRUCTIONS.
CALIFORNIA PROPOSITION 65 WARNING:
This product can expose you to chemicals including carbon monoxide, which
is known to the State of California to cause cancer, birth defects and/or other
reproductive harm. For more information, go to www.P65warnings.ca.gov
Ce produit peut vous exposer à des produits chimiques, y compris le
monoxyde de carbone, qui est connu dans l'État de Californie pour causer
le cancer, des malformations congénitales et / ou d'autres problèmes de
reproduction. Pour plus d'informations, visitez www.P65warnings.ca.gov
ASSEMBLY AND OPERATING
INSTRUCTIONS
The Hooch
USG350
The Cumberland
USG730
The Irondale
USG890
Manufactured for:
United States Stove Company
227 Industrial Park Road
South Pittsburg, TN 37380
[phone]
READ AND SAVE THESE INSTRUCTIONS
Please read this entire manual before installation and use of this pellet fuel-burning appliance.
Failure to follow these instructions could result in property damage, bodily injury or even death.
Contact local building or fire officials about restrictions and inspection requirements in your area.
NOT FOR USE IN LIVING AREAS
FOR OUTDOOR USE ONLY!

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTIONindicatesahazardoussituationwhich,if notavoided,couldresultin minorormoderate
injury.
NOTICE indicates practices unrelated to personal injury which, if not avoided, may result in
property damage
GENERAL HAZARD WARNING
FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS
GRILL CAN RESULT IN DEATH, SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE
FROMHAZARDSOFFIRE,EXPLOSION,BURN,ASPHYXIATION,CARBONMONOXIDEPOISONING,
AND / OR ELECTRICAL SHOCK.
ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THESE INSTRUCTIONS SHOULD USE
OR SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTIONS MANUAL,
LABEL, ETC. CONTACT USSC GRILLS at [phone].
WARNING:
FIRE, BURN, INHALATION, AND EXPLOSION HAZARD. KEEP SOLID COMBUSTIBLES, SUCH AS
BUILDING MATERIALS, PAPER, OR CARDBOARD, A SAFE DISTANCE AWAY FROM THE HEATER
AS RECOMMENDED BY THE INSTRUCTIONS. NEVER USE THE HEATER IN SPACES WHICH
DO OR MAY CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES, OR PRODUCTS SUCH AS
GASOLINE, SOLVENTS, PAINT THINNER, DUST PARTICLES OR UNKNOWN CHEMICALS.
WARNING: NOT FOR HOME OR RECREATIONAL VEHICLE USE.
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.
Contact your local building officials and/or Fire Marshall for any restrictions on the use of pellet
grills in your area.

WARNING:
Do Not Tamper With The Heater. Have A
Competent Serviceman Make Any Necessary
Adjustments Or Repairs.
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.
WARNING: RISK OF ELECTRIC SHOCK
• EQUIPMENT MUST BE GROUNDED.
• Use only the power (voltage) specified for this
grill. Refer to the model plate on the grill.
• Use only a three-prong grounded outlet with
GFCI protection.
• ALWAYS install grill so that it is not directly
exposed to water spray, rain, dripping water, or
wind.
• ALWAYS disconnect the grill from its power
source when not in use.
WARNING:
•NEVER USE GASOLINE, GASOLINE -TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR
SIMILAR LIQUIDS TO START OR "FRESHEN UP" A
FIRE IN THIS APPLIANCE.
•KEEP CHILDREN, CLOTHING, PETS AND
COMBUSTIBLES AWAY FROM HEATER.
•HOT WHILE IN OPERATION. USE CAUTION.
•DISCONNECT THE GRILL FROM ITS POWER SOURCE
BEFORE PERFORMING ANY MAINTENANCE OR
CLEANING THE GRILL. TURNING THE POWER
SWITCH TO "OFF" DOES NOT DISCONNECT POWER
TO THE ELECTRICAL COMPONENTS OF THE GRILL.
•THE GRILL WILL NOT OPERATE DURING A POWER
OUTAGE. IF A POWER OUTAGE DOES OCCUR,
INSPECT THE GRILL FOR UNSAFE BURN CONDITIONS
THAT MAY HAVE OCCURED.
•ALLOW THE GRILL TO COOL BEFORE PERFORMING
ANY MAINTENANCE OR CLEANING.
•THE GRILL TOP AND THE HOPPER ARE HOT DURING
OPERATION. ALWAYS USE HAND PROTECTION
WHEN REFUELING THIS GRILL.
•FOR USE ON NON-COMBUSTIBLE FLOORING OR
PROVIDE FLOOR PROTECTION ADEQUATE TO
PROVIDE EMBER PROTECTION AROUND THIS GRILL.
•KEEP COOKING PELLETS A MINIMUM OF 3 FEET (1
METER) FROM THIS GRILL.
•DO NOT PLACE CLOTHING OR OTHER COMBUSTIBLE
MATERIALS ON OR NEAR THIS GRILL.
•DO NOT OPERATE THIS GRILL UNDER A CEILING OR
OVERHANG.
•THIS GRILL MUST BE GROUNDED.
•PLUG THE GRILL O A 110-120v, 60 Hz GROUNDED
ELECTRICAL OUTLET WITH GFCI PROTECTION.
•DO NOT USE AN ADAPTER PLUG OR SEVER THE
GROUNDING PLUG.
•DO NOT ROUTE THE ELECTRICAL CORD
UNDERNEATH, IN FRONT OF, OR OVER THE TOP OF
THE GRILL.
•DO NOT ROUTE THE THE CORD IN FOOT TRAFFIC
AREAS.
•DO NOT PINCH THE CORD UNDER ANY OBJECT(S).
•A POWER SURGE PROTECTOR IS REQUIRED.
•ALWAYS LOCATE THE GRILL ON A STABLE AND LEVEL
SURFACE.
•DO NOT UNPLUG THE GRILL IF YOU SUSPECT A
MALFUNCTION. TURN THE POWER SWITCH TO "OFF"
AND CONTACT CUSTOMER SERVICE.
•KEEP FOREIGN OBJECTS OUT OF THE HOPPER.
•THE MOVING PARTS OF THIS GRILL ARE PROPELLED
BY HIGH-TORQUE ELECTRIC MOTORS. KEEP ALL BODY
PARTS AWAY FROM THE AUGER WHILE THE GRILL IS
PLUGGED INTO A POWER SOURCE. MOVING PARTS
MAY BEGIN TO MOVE AT ANY TIME AND WITHOUT
WARNING WHENEVER THE GRILL IS PLUGGED INTO A
POWER SOURCE.
•DO NOT USE ACCESSORIES NOT SPECIFIED FOR USE
WITH THIS GRILL BY USSC GRILLS.
Safety Information
WARNING:
• Never block free airflow through the open vents
of this grill

Introduction
The entire family of United States Stove Company would like to thank you for purchasing your new pellet burning
grill. At U.S. Stove, we build all of our products with a hands-on approach to detail and quality. Our old world
team of Craftsmen take great pride in their superior workmanship to ensure you have years of trouble free use
out of your pellet grill.
THIS GRILL IS DESIGNED FOR THE USE OF PELLETIZED FUEL THAT IS SPECIFICALLY FORMULATED FOR COOKING. THE
USE OF PELLETS NOT FORMULATED FOR COOKING WILL NOT GIVE SATISFACTORY RESULTS.
Use only wood cooking pellets specified by the manufacturer. It is important to use only cooking pellets that
are dry and free from dirt or other impurities. The cooking pellet industry has established standards for wood
pellet manufacturers. We recommend that cooking pellets used in all U.S. Stove pellet burning grills meet or
exceed the following specifications:
Fines (ne particles) ........................................................................................ Maximum through a 1/8” screen
Bulk Density .......................................................................................................Minimum 40 lbs. per cubic foot
Size .................................................................................................................... Maximum 3/8” Diameter by 1-1/2” length
Ash Content..................................................................................................... 1% Maximum (Premium grade)
3% Maximum (Standard grade)
Moisture Content ............................................................................................ 8% Maximum
Heat Content................................................................................................... Minimum 8,200 btu’s per hour
-2-
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.
U.S. Stove Company cannot control the quality of cooking pellets you choose to use in your pellet grill and
assumes no responsibility for that choice.
YOUR GRILL REQUIRES PERIODIC MAINTENANCE AND CLEANING (SEE "MAINTENANCE"). FAILURE TO MAINTAIN
YOUR GRILL MAY LEAD TO IMPROPER AND/OR UNSAFE OPERATION.
It is important to note that the ash content of the fuel and frequency of operation will determine the frequency
of which you will be required to clean your pellet grill. A high ash fuel may result in daily cleaning, while a low ash
content fuel may result in less frequent cleaning.
Occasionally, impurities in the fuel will cause a hard mass build up in the burn pot of your Pellet Grill. Impurities,
such as silica, can virtually form little glass balls when subjected to the high heat generated in the burn pot. When
allowed to collect, a hard base build up may block air flow through the burn pot, which will significantly affect
the performance and efficiency of your Pellet Grill. INSPECT THE BURNER POT FOR HARD MASS BUILD UP OR
OTHER BLOCKAGE DAILY. IF NECESSARY, ALLOW THE BURNER POT TO COOL THEN CLEAN THE BURNER POT.
REMOVE ACCUMULATED CREOSOTE OR GREASE TO REDUCE THE RISK OF FIRE. When wood pellets are burned
slowly, they produce tar and other organic vapors that combine with expelled moisture to form creosote. The
creosote vapors condense in a relatively cool oven flue and exhaust hood of a slow burning fire. As a result
creosote residue accumulates on the flue lining and exhaust hood. When ignited, creosote makes an extremely
hot fire.
ASHES SHOULD BE PLACED IN A METAL CONTAINER WITH A TIGHT-FITTIMG LID. THE CLOSED CONTAINER OF ASHES
SHOULD BE PLACED ON A NON-COMBUSTIBLE FLOOR OR ON THE GROUND, AT LEAST 25 FEET FROM ANY
COMBUSTIBLE MATERIALS, PENDING FINAL DISPOSAL. WHEN THE ASHES ARE DISPOSED BY BURIAL IN SOIL OR
OTHERWISE LOCALLY DISPERSED, THE ASHES SHOULD BE RETAINED IN A CLOSED CONTAINER UNTIL ALL CINDERS
HAVE THOROUGHLY COOLED. DO NOT PLACE ANY OTHER WASTE IN THE SAME CONTAINER.
WARNING:
STORE COOKING PELLETS A MINIMUM OF 3 FEET (1 METER) AWAY FROM THE PELLET GRILL.
RADIANT HEAT CAN IGNITE THE FUEL.

24”
SIDE WALL
SIDE WALL
12”12”
-4-
WARNING: MINIMUM CLEARANCE TO COMBUSTIBLES
Your pellet grill must be installed with clearance to combustibles as shown below.
DO NOT OPERATE THIS GRILL UNDER A CEILING OR OVERHANG.
FOR USE ON NON-COMBUSTIBLE FLOORING.
REAR WALL
WARNING: RISK OF CARBON MONOXIDE POISONING
• Use this grill only in well-ventilated areas!
• People with breathing problems should consult
a physician before using this grill.
• Early signs of carbon monoxide poisoning
resemble flu-like symptoms such as headaches,
dizziness, and/or nausea. If you have these
symptoms, your grill may not be working
properly.
• Get fresh air at once! Have the grill serviced.
• Some people are more affected by carbon
monoxide than others. These include pregnant
women, those with heart or lung problems,
anemia, those under the influence of alcohol, or
at high altitudes.
• Never use this grill in living or sleeping areas.
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.

followed by one (1) wheel and one (1) 3/8" flat washer.
3. Secure the wheel to the axle with one (1) acorn nut. Repeat this step to attach
the second fixed wheel to the opposite end of the axle.
4. Assemble the pedestal using the provided six (1/4" - 20 x 3/4" bolts and six (6)
1/4" flat washers. Fasten the bolts to the threaded inserts.
5. Assemble the pedestal to the base using six (6) 1/4" - 20 x 3/4" bolts and six (6)
1/4" flat washers.
6. Tighten all fasteners
Assembly Instructions
Parts List
Description Qty
Pedestal, Right Side 1
Pedestal, Left Side 1
Pedestal, Center 1
Base 1
Caster Wheel 2
Fixed Wheel 2
1/4-20 Bolt x 3/4” 22
Acorn Nut 2
1/4” - 20 X 1/2” Bolt 8
Side Table 1
1/4” Flat Washer 30
1/4” Lock Washer 8
3/8” Flat Washer 4
-6-
TOOLS AND MATERIALS NEEDED FOR INSTALLATION
You will need one (1) #3 phillip screw driver for assembly and one (1) 5/8” socket/
wrench to install wheels. Use proper assembly technique. When installing bolts,
start all bolts first and then tighten sufficiently.
STEP 1 - BASE AND PEDESTAL ASSEMBLY
1. Attach the swivel wheels to base using four (4) 1/4”-20 x 1/2” bolts,four (4) 1/4"
lock washers, and four (4) 1/4" flat washers on each wheel.
2. To attach the fixed wheels to the axle, slide on two (2) 3/8" flat washers,
Pedestal and Base Assembly
Wheel Installation
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.
UNPACKING:
1. Remove the grill from the carton.
2. Remove all packing materials applied for shipping.
3. Remove and hold all parts and hardware.
4. Inspect for damage. Promptly inform USSC Grills at [phone] of damaged or missing parts.
change image to show assy sequence:
Nut, washer, wheel, washer (1), axle

STEP 2 - GRILL BODY AND PEDESTAL ASSEMBLY
THE ASSISTANCE OF A SECOND PERSON IS STRONGLY RECOMMENDED FOR THIS STEP
Attach main grill body to the assembled pedestal
with six (6) 1/4-20 x 3/4” bolts and six (6) 1/4" flat
washers. Fasten the bolts along bottom of grill
body into the rivet nuts already installed in the
pedestal pieces.
STEP 3 - SIDE TABLE
Attach the side table to the grill body with four (4)
1/4" - 20 x 3/4" bolts and four (4) 1/4" flat washers
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.
STEP 4 - GRILL SURFACE, DRIP PAN, AND FLAME PLATE ASSEMBLY
Place flame plate in bottom of grill body. ENSURE FLAME PLATE IS LEVEL
WARNING: If flame plate is installed incorrectly the pellets may burn back into the
hopper, and/or the grill may smoke excessively during cook mode and may not maintain
set cooking temperature properly.
Place drip pan.
Place main grilling surface on grill mounting bracket. Align with searing station.
USG350 is not equipped with a searing station. Instead, a second grill surface is provided.

1
4
2
3
Parts List
1 Flame Plate
2 Drip Pan
3 Main Grill
4 Searing Station
-7-
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.

Initial Firing Procedure
(Searing Station (if equipped) is installed by the manufacturer. DO NOT remove.)
1. Open the pellet hopper lid and remove any objects in the hopper.
2. Plug the grill into a three-prong, grounded power source.
3. Press the power button to "ON".
4. Open the hopper lid and check to see that the auger is turning freely -approximately 2 rpm. DO NOT
TOUCH THE AUGER.
5. Place your fingers over the burnpot and feel the air movement from the combustion blower. Ignitor will
glow within 1 minute. DO NOT TOUCH THE IGNITOR
6. Press the Power Button to "OFF".
7. Before replacing the removed components, clean all the items with soap and water, then rinse and allow
to dry. Re-install components.
PREPARING TO USE YOUR GRILL
Important: You must season the grill before cooking any food on your grill for the first time. The unit must be
operated at maximum temperature for 1 hour with the lid closed. This allows any oil residue from the manufacturing
process to burn off and also allows the high temperature paint to cure.
Avoid placing any items on the unit during this period as the paint could be permanently damaged.
-8-
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.
WARNING: DO NOT TOUCH THE AUGER

Standard Use Operating Instructions
Always make certain that the grill is setting level or is slightly tilted towards the drip bucket.
STANDARD STARTUP SEQUENCE
1. Fill the hopper with pellets. Be sure to close and latch the hopper lid. Burn only pellets that are specically
manufactured for use in pellet grills and cookers. Never leave pellets in the hopper. Only use the amount of
pellets needed to cook for any given time.
2. Open the grill lid and press the “Power” button. The “Cook” or “Smoke” mode lights will begin to ash
indicating that the grill is in its startup sequence in the respective mode. The grill will automatically light 5 to 8
minutes after pressing the “Power” button (start-up times may vary based on outside ambient temperature
and fuel quality). To prime the auger press the button located on the control panel labeled “Prime”, when
pressed it causes the auger to spin and feed pellets to the burnpot. The “Prime” button can be held in for up
to 1 minute to prime the auger tube with pellets.
NOTE: The startup mode will last approximately 15 minutes. It is normal for the grill to smoke excessively during
startup.
3. Set the control board to the desired cooking temperature using the “Cook Temp” buttons on the control
board. Temperature settings are in 5°F increments.
4. Once the grill ignites, you will hear a owing sound slightly louder than the blower motors of the grill. You
should also notice a signicant reduction in the amount of smoke being produced. Close the grill lid once
ignition has occurred.
NOTE: Allow the grill lid to remain closed during the pre-heat and as much as possible during cook time. Feed
rates during run mode are determined by temperature readings, so each time the lid is opened, the temperature
goes down, and thus, the auger feeds more. This can lead to potential overcooking of food.
5. You can easily check the actual temperature compared to the set-point temperature by using the “Display”
button on the control board. This allows you to determine when the grill has preheated to your desired
cooking temperature.
NOTE: During the startup, the grill temperature can exceed the set-point temperature. So, it is recommended that
you leave the display in “Actual” to monitor the temperature readings and avoid overcooking or burning. You
can easily tell if the grill is still in startup by the “Cook” or “Smoke” light blinking (depending on which mode you
have the grill set).
6. When startup time (15 minutes) has been met and the grill has reached its set-point temperature, you are
now ready to add food.
NOTE: As previously mentioned, keep lid closed as much as possible to maintain constant cooking temperature.
Temperature may uctuate slightly.
NOTICE !! During operation, the technology in this grill’s programming learns the fuel rate needed to sustain the
selected cooking temperature. Therefore, start-up times may vary based on outside ambient temperature and
fuel quality or type (avored or not). Using the Prime button may help facilitate a quicker start-up time.
ACTUAL COOK
SETPOINT SMOKE
DISPLAY MODE
WOOD PELLET FIRED CONVECTION GRILL
COOK
TEMP
PRIME
USSC GRILLS • USSCGRILLS.COM
TEMPERATURE CONTROL
Power
Adjust cook temperature
Change temperature display
C
Meat Probe
hange between
"Cook" and "Smoke" Mod
e
Primes the Auger
-9-
WARNING: Never leave the grill unattended while operating.
Disconnect the grill from its power source when not in use.