United States Stove Company 6110 User Manual

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UNITED STATES STOVE COMPANY

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“Keeping North America Warm Since 1869”

MULTI-FUEL FURNACE

Owner’s Manual

Please read this entire manual before installation and use of this appliance. Failure to follow

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these instructions could result in property damage, bodily injury, or even death.
Contact your local building or fire officials about restrictions and installation inspection

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requirements in your area.
Save these instructions.

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UNITED STATES STOVE COMPANY • 227 INDUSTRIAL PARK ROAD • SOUTH PITTSBURG, TENNESSEE 37380 • WWW.USSTOVE.COM

FOR TECHNICAL ASSISTANCE: PHONE: [phone] FAX: [phone]

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Part No.: 851655B

Table of Contents

T ABLE OF CONTENTS.............................................................................................. 2

SAFETY PRECAUTIONS ........................................................................................... 3

SPECIFICATIONS ...................................................................................................... 4

Heating Specifications ..................................................................................... 4

Dimensions .....................................................................................................4

Electrical Specifications .................................................................................. 4

Safety and EPA Compliance...........................................................................4

Fuel Considerations ........................................................................................5

INSTALLATION .......................................................................................................... 5

Installation Options.......................................................................................... 6

Floor Protection...............................................................................................6

Clearances ...................................................................................................... 7

Venting Requirements.....................................................................................8

Maximum Venting Distance............................................................................. 8

Pellet Vent Type .............................................................................................. 8

Pellet Vent Installation.....................................................................................8

Pellet Vent Termination ................................................................................... 8

Vent Termination Clearances .......................................................................... 9

Through the Wall Installation ........................................................................ 10

Through the Roof/Ceiling Installation............................................................ 10

Primary and Secondary Furnace Illustrations............................................... 11

OPERATION ............................................................................................................. 12

How Your Furnace Works ............................................................................. 12

Damper Control Adjustment.......................................................................... 12

Control Panel ................................................................................................13

Unit Preparation ............................................................................................14

Start-Up Procedure ....................................................................................... 14

Shut Down Procedure ...................................................................................14

Daily Operation ............................................................................................. 15

Safety and Convenience Features................................................................ 15

MAINTENANCE........................................................................................................15

Exhaust System ............................................................................................15

Interior Chambers ......................................................................................... 16

Ash Disposal ................................................................................................. 16

Check and Clean the Hopper........................................................................ 16

Main Door Gaskets ....................................................................................... 16

Fan Motors .................................................................................................... 16

Painted Surfaces...........................................................................................16

Glass ............................................................................................................. 16

Fall Start-Up .................................................................................................. 16

Spring Shut Down .........................................................................................16

Yearly Servicing.............................................................................................16

REP AIR PARTS DIAGRAM & LIST ....................................................................17-18

WIRING DIAGRAM................................................................................................... 19

TROUBLE SHOOTING ............................................................................................ 20

ERROR CODES .......................................................................................................21

FLASHING INDICA TORS......................................................................................... 21

NOTES.................................................................................................................22-23

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Safety Precautions

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IMPORT ANT : Read this entire manual before installing

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and operating this product. Failure to do so may result
in property damage, bodily injury, or even death.
Proper installation of this furnace is crucial for safe
and efficient operation.

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Install vent at clearances specified by the vent

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manufacturer.

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Do not connect the pellet vent to a vent serving any

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other appliance or furnace.

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Do not install a flue damper in the exhaust venting

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system of this unit.

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Use of outside air is not required for this unit. However,

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fresh air and return air make-up is required for
maximum burn characteristics and heat distribution
throughtout your house.

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Contact your local building officials to obtain a permit

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and information on any additional installation
restrictions or inspection requirements in your area.

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Do not throw this manual away. This manual has

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important operating and maintenance instructions that
you will need at a later time. Always follow the
instructions in this manual.

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This heater is designed and approved as a multi-fuel,

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such as corn or wood pellets, burning furnace. Use
only dried shelled corn with a moisture content of 1 1%
or less (which provides the best results). A pellet type
fuel used should have an ash content of 1% or less. If
not, efficiency will suffer, and your warranty may be
voided.

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Never use gasoline, gasoline-type lantern fuel,

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kerosene, charcoal lighter fluid, or similar liquids to
start or ’freshen up’ a fire in this furnace. Keep all
such liquids well away from the furnace while it is in
use.

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A working smoke detector must be installed in the

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same room as this product.

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Disconnect the power cord before performing any

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maintenance! NOTE: Turning the ON/OFF Switch to
”OFF” does not disconnect all power to the electrical
components of the furnace.

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Never try to repair or replace any part of the furnace

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unless instructions for doing so are given in this
manual. All other work should be done by a trained
technician.

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Allow the furnace to cool before performing any

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maintenance or cleaning. Ashes must be disposed in
a metal container with a tight fitting lid. The closed
container of ashes should be placed on a non­combustible surface or on the ground, well away from
all combustible materials, pending final disposal.

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The exhaust system should be checked monthly during

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the burning season for any build-up of soot or creosote.

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Do not touch the hot surfaces of the furnace. Educate

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all children on the dangers of a high-temperature
furnace. Young children should be supervised when
they are in the same room as the furnace.

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A power surge protector is recommended. This unit

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must be plugged into a 110 - 120V, 60 Hz grounded
electrical outlet. Do not use an adapter plug or sever
the grounding plug. Do not route the electrical cord
underneath, in front of, or over the furnace. Do not
route the cord in foot traffic areas or pinch the cord
under furniture.

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The furnace will not operate during a power outage. If

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a power outage does occur, check the furnace for
smoke spillage and open a window if any smoke spills
into the room.

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The feed door must be closed and sealed during

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operation.

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Never block free airflow through the open vents of the

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unit.

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Keep foreign objects out of the hopper .

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Do not unplug the furnace if you suspect a malfunction.

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Turn the ON/OFF SWITCH to ”OFF’ and contact your
dealer.

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Your furnace requires periodic maintenance and

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cleaning (see ”MAINTENANCE ”). Failure to maintain
your furnace may lead to improper and/or unsafe
operation.

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The moving parts of this furnace are propelled by high

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torque electric motors. Keep all body parts away from
the auger while the furnace is plugged into an electrical
outlet. These moving parts may begin to move at any
time while the furnace is plugged in.

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Do not place clothing or other flammable items on or

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near this furnace.

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This appliance is not intended for commercial use.

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Specifications

Heating Specifications

Heat Output
Heating Capacity
Fuel Burn Rate
Burn Time (lowest setting) 125 hours continuous
Hopper Capacity 250 lbs

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BTU output will vary depending on the quality and type of fuel. Use PFI listed fuels for the best results.

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Heating capacity will vary depending on floor plan layout of your home, degree of insulation, and the outside temperature.

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Fuel size may effect the actual rate of fuel feed and burn times. Fuel feed rates may vary by as much as 20%. Use PFI listed fuel for best results.

Dimensions

Height 47 in.
Width 25-1/2 in.
Depth 35-1/2 in.
Weight 350 lbs.

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50,000 to 75,000 BTU/hr.
800 - 2,000 sq. ft.

2.0 - 6.0 lbs./hr.

Electrical Specifications

Electrical Rating 1 10-120 volt s, 60 HZ, 8.0 Amps
Watts (operational) 960 (max. approx.)

SAFETY AND EPA COMPLIANCE

Your American Harvest Furnace has been safety tested and listed to CAN/CSA B366.1, and (UM) 84-HUD, by OMNI­Test Laboratories, Inc. Beaverton, Oregon, USA. It is also exempt from EPA Phase II requirements.

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Fuel Considerations

SHELLED CORN (Dry, preferably corn with 11% or less moisture content)

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Optimum moisture content of corn should be 11% or less. W et corn will rapidly deteriorate furnace components,
reduce efficiency and void all warranties. Purchase a moisture tester if in doubt.

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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 .

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NEVER BURN SEED CORN IN YOUR FURNACE. 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.

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

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

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There are many varieties of corn grown around the world. Each variety has unique characteristics including the
shape and size of the kernel. Your furnace 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!

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Oyster shell is highly recommended for best burn operations and to reduce clinker build-up

WOOD PELLETS

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As with corn, be consistent in your pellet supplier. Pellet s will vary in content and burn characteristics from supplier to
supplier. A consistent supply of pellets will result in a more consistant and efficient burn.

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Check your pellets for foreign objects. Your furnace warranty will not cover damage done to your furnace due to
foreign objects in the fuel supply.

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

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To decrease sawdust buildup, the hopper will need to be vacuumed out after every 6-8 bags of pellets or more often
if the pellets are poor quality. You may have to screen each bag of pellets if sawdust becomes a problem.

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

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

CLEARANCES OR WITHIN THE SP ACE REQUIRED FOR CHARGING AND ASH REMOV AL.

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Installation

INSTALLATION OPTIONS

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Read this entire manual before you install and use your Multi-Fuel Furnace. Failure to follow instructions
may result in property damage, bodily injury , or even death!

(See specific installation details for clearances and other inst allation requirement s)

As a Primary Furnace—the unit functions independently of any other system. The “Room Air” blowers will come on
when the plenum and Exhaust temperatures reach a preset point on the furnace’s circuit board (PCB).

As a Secondary (Add-On) Furnace—the unit aids an existing gas/electric furnace helping cut down on operation time.
It is recommended that only a authorized technician install your Multi-Fuel Furnace, preferably an NFI certified specialist.

IMPROPER INSTALLATION: The manufacturer will not be held responsible for damage caused by the mal­function of a furnace due to improper venting or installation. Call [phone] and/or consult a professional
installer if you have any questions.

ADDITIONAL ITEMS NEEDED FOR INST ALLATION

• UL listed 3 inch or 4 inch (Depending on application) “PL” pellet venting exhaust system.

• Air distribution duct work. Transition from 4.5 inch x 18.5 inch rectangle to 10 inch round is provided.

• Air filter (Optional). Size: 10 x 20 x 1

• Floor Protection (If not installed on a non-combustible floor)

• Air return vent from the house to the room where furnace is inst alled.

• Fresh air for combustion if located in a small, tightly constructed room.

FLOOR PROTECTION

This unit must be installed on a non-combustible floor surface. If a floor pad is used, it should be UL listed or equal. The
floor pad or non-combustible surface should be large enough to extend a minimum of 6-inches in front, 6-inches on each
side, and 1-inch behind the furnace for horizontal termination.

Floor protection must extend under and 2-inches to each side of the chimney tee for an interior vertical termination.
A Floor Protector of 1 inch thick is recommended for this installation.

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CLEARANCES

Installation

NOTE: Distance on the left-hand side of your
control panel and for fuel loading. This distance may be less, but not less than 7 inches.

Multi-Fuel Furnace

is set at 24 inches for suitable access to the

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Installation

VENTING REQUIREMENTS

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Install vent at clearances specified by the vent manufacturer.

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Do not connect the pellet vent to a vent serving any other appliance or furnace.

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

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

IMPORTANT! This unit is equipped with a negative draft system that pulls air through the burn pot and
pushes the exhaust out of the dwelling. If this unit is connected to a flue system other than the way ex­plained in this manual, it will not function properly .

MAXIMUM VENTING DIST ANCE

Installation MUST include at least 3-feet of vertical pipe. This will create some natural draft to reduce the possibility of
smoke or odor during appliance shutdown and keep exhaust from causing a nuisance or hazard by exposing people or
shrubs to high temperatures. The maximum recommend vertical venting height is 12-feet for 3-inch type “PL” vent. Total
length of horizontal vent MUST NOT exceed 4-feet. Use no more than 180 degrees of elbows (two 90-degree elbows,
or two 45-degree and one 90-degree elbow, etc.) to maint ain adequate draft.

PELLET VENT TYPE

A UL listed 3-inch or 4-inch type “PL” pellet vent exhaust system must be used for installation and attached to the pipe
connector provided on the back of the furnace (use a 3-inch to 4-inch adapter for 4-inch pipe). Use 4-inch vent if the vent
height is over 12-feet or if the installation is over 2,500 feet above sea level.

We recommend the use of Simpson Dura-Vent® or Metal-Fab® pipe (if you use other pipe, consult your local building
codes and/or building inspectors). Do not use Type-B Gas Vent pipe or galvanized pipe with this unit. The pellet vent
pipe is designed to disassemble for cleaning and should be checked several times during the burning season. Pellet
vent pipe is not furnished with the unit and must be purchased separately .

PELLET VENT INST ALLATION

The installation must include a clean-out tee to enable collection of fly ash and to permit periodic cleaning of the exhaust
system. 90-degree elbows accumulate fly ash and soot thereby reducing exhaust flow and performance of the furnace.
Each elbow or tee reduces draft potential by 30% to 50%.

All joints in the vent system must be fastened by at least 3 screws, and all joints must be sealed with HI-TEMP RTV
silicone sealant 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.

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

PELLET VENT TERMINA TION

Do not terminate the vent in an enclosed or semi-enclosed area, such as; carport, garage, attic, crawl space, under a
sundeck or porch, narrow walkway, or any other location that can build up a concentration of fumes.

The termination must exhaust above the outside air inlet elevation.
The termination must not be located where it will become plugged by snow or other materials.

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