United States Stove Company 6039HF User Manual

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Hearth FocusHearth Focus

Hearth Focus

Hearth FocusHearth Focus

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America W

America WAmerica W

Since 1869 Since 1869

Since 1869

Since 1869 Since 1869

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CORN & PELLET MULTIFUEL STOVE

6039HF

OWNER’S MANUAL

Installation - Operation - Maintenance Instructions - Repair Parts

READ THIS ENTIRE MANUAL, THOROUGHLY, BEFORE ATTEMPTING TO INSTALL AND/OR

BURN YOUR NEW HEARTH FOCUS CORN AND PELLET MULTI-FUEL STOVE. FAILURE TO FOL-

LOW THESE INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURIES OR

EVEN DEATH.

Safety Notice: If this stove is not properly installed, a house fire may result.

For your safety , follow the installation directions. Contact local building or fire officials
about restrictions and installation requirements peculiar to your area. Do Not Plug
this appliance into an electrical outlet before reading and understanding all operations
and always unplug the unit before attempting any work or maintenance. Do not
connect this stove to any chimney flue already serving another appliance. Carefully
observe and maintain all clearances to combustibles.

A note about fuel: Use only dried shelled corn with a moisture content of 14%
or less (11 to 12% provides the best results); any pellet fuel used should have
an ash content of 1% or less. If not, efficiency will suffer, and your warr anty may be
voided.

Y our Hearth Focus Corn/Pellet Stove operates on a negative pressure. Therefore, all

venting connections (elbows, T-pipe) must be sealed and airtight.

Use Hi- T emp silicone at each joint or connection.

SAVE THESE INSTRUCTIONS

UNITED STATES STOVE COMPANY GRANTS NO WARRANTY, IMPLIED OR STATED,

FOR THE INSTALLATION OR MAINTENANCE OF THE STOVE AND ASSUMES NO

RESPONSIBILITY FOR ANY CONSEQUENTIAL DAMAGE(S).

UNITED STA TES STOVE COMPANY - 227 INDUSTRIAL P ARK ROAD-SOUTH PITTSBURG, TN. 37380

TECHNICAL ASSISTANCE [phone] - [phone] FAX

USSC 1851672

CONGRATULATIONS!

You've purchased one of America's Finest Multifuel Burning
Stoves. By heating with fuels such as corn and pellets, you're
helping CONSERVE AMERICA'S ENERGY!

NOTE: YOUR UNIT MUST BE INSTALLED BY A

QUALIFIED INSTALLER, such as an NFI Certified

Specialist

We strongly suggest installing smoke detectors in your home if not already installed.

Initial burn off may cause slight smoke and odor the first few hours of operation.

Operate outside if possible

SPECIFICATIONS

United States Stove Company (manufacturer of the Hearth Focus Multifuel Pellet

Stove) reserves the right to alter products, specifications and price without notice.

Safety Tested & Listed to ASTM- E 1509, ULC-C 1482, (UM) 84-HUD, by OMNI Test Laboratories,
Inc., Beaverton, Oregon USA

Heat Input, Maixmum 52,200 BTU/HR
Heat Output, Maximum

Heating Capacity 1,200 Sq. Ft 0
Fuel Storage Capacity 60 Lbs.
Width 29 in./737mm
Height 31 in./787mm
Depth 28 in./711mm

, BTU output will vary, depending on the brand, type and quality of fuel and the moisture content. Consult your dealer

for best results.

,,

, 48,280 BTU/HR

,,

0 Based on post 1982 home construction, requiring 35 BTU/Hr per Sq. Ft.

Remember, this stove should not be used as the only source of heat in the house. Power outages
and periodic maintenance will result in a total loss of heat.

2 USSC

6039HF ASSEMBLY

Assembly

1. Unpack unit and make sure all components are included; (4) Legs and all hardware for installation.

2. Inside the unit are two(2) Ash Dump Covers located to the left and right of the burnpot. Remove these for leg

and guiderail assembly . (See pg. 15 for ash dump cover desciption)

3. Fold the corner padding from the carton and lay it on the floor behind the unit. This is used to hold the heater up
off the floor to install the legs. Gently tilt the heater on its back, door opening up.

4. Assemble the legs using the eight(8) Bolts as shown.

5. After all bolts and screws have been tightened properly , set the heater back up on the legs and replace the two

ash dump covers. (See pg. 15 for ash dump cover placement)

1. The Auger is packed in the hopper and must
be installed properly as illustrated below.

2. Insert the

Auger

into the auger tube. Ro­tate the auger until it fits into the coupling that
is already installed on the auger motor drive.
Seat the auger firmly. The Auger cannot be
turned by hand once installed properly.

NOTE:

Initial burn off may cause slight smoke and

odor the first few hours of operation.

Operate outside if possible

Continue with Installation

USSC 3

SAFETY STEPS

IMPORTANT: Proper installation of this stove is necessary for safe and efficient operation.

Installing this product improperly may result in a house fire and personal injury. All applicable
building codes for your location must be followed. In areas where building codes require additional
steps to the installation of this product not included in this manual the building codes will take
precedent and must be followed. Contact your local building inspector to obtain any necessary
permits or inspection guidelines before installing the product.

•

The Hearth Focus stove is designed to burn dry shelled corn, cherry pits, or pelletized fuel such as wood
pellets. The burning of other solid fuels such as cord wood or wood chips in this stove is not permitted.

•

This product requires simple periodic maintenance for proper operation and long life of the stove. Read
and follow the maintenance schedule closely.

•

DISCONNECT THE POWER CORD BEFORE SERVICING THIS STOVE!

•

A power surge protector is required. The unit must be plugged in to a grounded 110-volt power
source. Circuit Boards are very expensive - protect yours!

•

Always route the power cord away from the unit. Do not route cord in foot traffic areas. Do not pinch
cord under furniture.

•

A working smoke detector must be installed in the same room as this product.

•

Flammable or explosive liquids such as gasoline, naphtha, alcohol or engine oil must NEVER be used in or
around this stove. These liquids must be stored well away from this stove as the open flame in the
burner chamber could ignite the fumes of such liquids. Do not burn garbage in this unit.

•

The moving parts of this stove are propelled by high torque electric motors. The auger and Fuel Agitator
can cause severe injury to body parts that may get near them. Keep all body parts away from the
auger and Fuel Agitator while the stove is plugged into an electrical outlet. These moving parts may
begin to move at any time while the stove is plugged in.

•

According to HUD requirements, when installed in a mobile home, this stove must be grounded directly to
the steel chassis of the mobile home and bolted to the floor. Direct air access must be provided - Use
69FAK Fresh Air Kit

•

This stove is not intended for use in commercial installations.

•

Do not connect this stove to “B” vent. Use UL Listed Pell Vent ONLY!

BURNING SOLID FUELS

Ashes will have to be Removed from the stov e periodically . See cleaning procedure.
Your Hearth Focus stove, due to the nature of solid fuels, will require brief periodic attention. Please do not expect to light

your stove and walk away from it. A few moments of adjustment and cleaning from time to time is an important part of
burning solid fuels, due to the vast differences in fuel, humidity and outside temperature.

The Hearth Focus stove has been designed to burn dry shelled corn, wood pellets and other pelletized fuels that meet
Association of Pellet Fuel Industries standards.

4 USSC

BURNING SOLID FUELS continued...

SHELLED CORN (Dry, pref erably corn with 11- 12% moisture content)

•

Corn must contain less than 14% moisture content. Wet corn will rapidly deteriorate stove components, reduce
efficiency and void all warranties. Purchase a moisture tester if in doubt.

•

Corn must be clean and free from debris. Never burn corn right from the field. Damage caused by dirty corn is not
covered by the product warranty. Ask for clean filtered bagged corn only. Stalk parts, excessive fines and cob
remnants will clog the auger .

•

NEVER BURN SEED CORN IN YOUR STOVE. Seed corn is treated with chemical pesticides that are harmful or fatal if
swallowed, therefore, seed corn is dangerous to have in the house, especially where children can reach it.

•

Never burn “Deer Corn. ” It frequently contains molasses/sugars.

•

Store your corn supply in a dry place and keep bags or container sealed to prevent your corn from absorbing excess
moisture. T est the moisture content periodically to ensure the proper dryness.

•

There are many varieties of corn grown around the world. Each variety has unique characteristics including the shape
and size of the kernel. Y our stove will burn more consistently with a small to midsize kernel corn. If the kernel size of
the corn varies greatly or if you switch sources frequently, you will get a less consistent burn. Therefore, purchasing
corn from the same source will help achieve a more consistent burn. DO NOT USE CORN WITH A HIGH WAX

CONTENT!

WOOD PELLETS

•

As with corn, be consistent in your pellet supplier . P ellets will vary in content and burn characteristics from supplier to
supplier . A consistent supply of pellets will result in a more consistant and ef fencient burn.

•

Check your pellets for foreign objects. Y our stove warranty will not cover damage done to your sto ve due to foreign
objects in the fuel supply .

•

Store your pellets in a dry place to prevent them from absorbing added moisture.

•

T o decrease sawdust buildup, the hopper will need to be v acuumed out after every 6-8 bags of pellets or more often if
the pellets are poor quality . Y ou may have to screen each bag of pellets if sawdust becomes a problem.

•

Wood P ellets vary in size and ash content from less than 1% to 3% or more. Y our stove will burn more efficiently with
small to midsize pellets. Low ash content pellets will allow you to burn the stove longer between cleanings. Only wood
pellets manufactured to the Association of Pellet Fuel Industries (A.P.F.I.) standard for residential pellets fuels are
recommended. Performance will suffer if nonstandard pellets are used. Consult your local Hearth Focus reseller for
more information on approved wood pellet fuel.

CAUTION: DO NOT PLACE SUCH FUELS WITHIN THE SPACE HEATER’S INSTALLA-

TION CLEARANCES OR WITHIN THE SPACE REQUIRED FOR CHARGING AND ASH

REMOVAL.

INSTALLATION REQUIREMENTS

FLOOR PROTECTION

The Hearth Focus Multifuel Stove may be installed on a combustible floor , with proper floor protection, or on a
masonry hearth. The hearth or noncombustible floor protector must extend a minimum of (6) inches (152mm)in front
and (6) inches (152mm) from each side of the ash removal door.

USSC 5

CLEARANCES TO COMBUSTIBLES

The stove must be installed with the following minimum clearances to side and back wall combustible materials. NOTE:
These are minimum clearances to combustible walls established by the testing lab. The amount of room needed on the left
side of the unit to access the electrical panel is (6) six inches (152mm).

PARALLEL - A - Left Sidewall to T op Edge of Unit 6 in./152mm

B - Sidewall to Flue 5 in./127mm
C - Backwall to Flue 3 in./75mm
D - Backwall to Unit 9 in./228mm
E - Right Sidewall to Top Edge of Unit 2 in./50mm

CORNER - F - Adjacent Wall to Flue 3 in./75mm

G - Adjacent Wall to Unit 4 in./100mm

BACK WALL

SIDE WALL

Backwall / Sidewall

Parallel

Allow sufficient space to remove the left and right side panels for maintenance purposes.

SIDE WALL

NOTE:

BACK WALL

Corner Installation

6”
min.

6”

min.

These clearances must be maintained and may only be reduced by means approved by the regulatory authority

6 USSC

HEARTH PROTECTION

6”

min.

GUIDELINES FOR EXHAUST VENTING SYSTEMS DESIGN

It is recommended that only an authorized installer install your pellet/corn stove, preferably an NFI certified

specialist. The following installation guidelines must be followed to ensure conformity with both the safety listing of this
stove and to local building codes.

INSTALL VENT AT CLEARANCES SPECIFIED BY THE VENT MANUFACTURER.

•

A UL listed 3” or 4” type “PL ” pellet vent exhaust system must be used for installation and attached to the pipe connector
provided on the back of the stove. Use a 3” to 4” adapter for 4” pipe. A cap must be used at the termination of type “L ”
vent chimneys. 4” PL is required for elevations above 2,500 feet above sea level.

•

Do not terminate vent in any enclosed or semi-enclosed area, such as; carports, garage, attic, crawl space, under a
sundeck or porch, narrow walkway or close area, or any location that can build up a concentration of fumes such as a
stairwell, covered breezeway etc.

•

Vent surfaces can get hot enough to cause burns if touched by children. Noncombustible shielding or guards ma y be
required.

•

Do not install a flue damper in the exhaust vent of this unit.

•

T ermination must exhaust above air inlet elevation. Instal lation MUST include three (3) vertical feet of pellet vent pipe.
This will create some natural draft to prevent the possibility of smoke or odor during appliance shutdown and to keep
exhaust from causing a nuisance or hazard from exposing people or shrubs to high temperatures. Do not connect

this unit to a chimney flue serving another appliance. Do not connect directly to a masonry chimney.

•

The installation must include a cleanout tee to enable collection of fly ash and to permit periodic cleaning of the exhaust
system. 90° elbows accumulate fly ash and soot thereby reducing exhaust flow and performance of the stove. Each
elbow or tee reduces draft potential by 30% to 50%. Use no more than 180 degrees of elbows (two 90-degree elbows,

or two 45-degree and one 90-degree elbow, etc. ) to maintain adequate draft. Clean-out tees and elbows should not
be mounted directly to the rear of the stove.

•

Total length of horizontal vent must not exceed 48”(4ft.)/1,200mm. The maximum recommended vertical venting

height is 12-feet for 3-inch type “PL ” vent. All joints in the vent system must be fastened by at least 3 screws, and all

joints must be sealed with RTV silicone sealer to be airtight.

•

The area where the vent pipe penetrates to the exterior of the home must be sealed with silicone or other means to
maintain the vapor barrier between the exterior and the interior of the home.

NOTE: These are guidelines only. Proper venting is accomplished by design and common sense. In most
installations 3 inch diameter venting is adequate. If it does not vent properly you will have to change it to
4 inches. You should not exceed 4 inch diameter venting.

DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM

VENT TERMINATION CLEARANCES:

A) Min. 4-ft clearance below or beside any door or window

that opens.
B) Min. 1-ft clearance above any door or window that

opens.

C) Min. 3-ft clearance form any adjacent building.
D) Min. 7-ft clearance from any grade when adjacent to

public walkways.
E) Min. 2-ft clearance above any grass, plants, or other

combustible materials.
F) Min. 3-ft clearance from an forced air intake of any

appliance.

G) Min. 2-ft clearance below eves or overhang.
H) Min. 1-ft clearance horizontally from combustible wall.

Must be a minimum of 36-inches above the roof
and 24-inches above the highest point or the roof
within 10-feet.

C

H

B

A

I

F

E

A

F

D

USSC 7

DESIGN GUIDELINES FOR OUTSIDE COMBUSTION AIR CONNECTION

For installations with horizontal through-the-wall exhaust, it is strongly recommended that the stove combustion air be

1)
connected to the outside. If the home is newer or has been tightly insulated it is required to install outside combustion
air.

Connection to outside the house is REQUIRED for mobile home installations. We strongly urge use of the 69F AK Fresh

2)
Air Kit.

90 DEGREE BEND TERMINATION WIND HOOD TERMINATION

Wind Hood

2” Min. Diameter

3”

NOTE:
A wire mesh screen with a
maximum opening size of 3/8”
must be installed.

Only noncombustible pipe 2 inches (or greater) in diameter is approved to use for outside air connections (straight or

3)
flexible). PVC pipe is NOT approved and should NEVER be used.

If the air inlet is connected to the outside, it MUST be terminated with a vertical 90-degree bend (down) or with a wind

4)
hood. Failure to do so could result in a burn back during high winds blowing dir ectly up the air inlet during a simulta­neous power failure (see diagram above).

Blockage, excessive length, or extra bends in the air intake pipe will starve the stove of combustion air. A 90-degree

5)
bend is equivalent in restriction to approximately 30 inches of straight inlet pipe.

CAUTION: The operation of exhaust fans such as bath room fans, attic fans, etc. might starve the heater of combustible air
creating a negative pressure in the room. Provide adequate ventilation in the room accompanying the heater. If not, the
pressure switch may shut off operation of the heater. (Due to negative pressure)

2”

6”

8 USSC