USSC American Harvest 6041 User manual

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Ho ow w t to o M Ma ai in nt ta ai in n C Co on ns si is st te en nt t H He ea at t
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wi it th h y yo ou ur r
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US SS SC C 6 60 04 41 1 M Mu ul lt ti i- -F Fu ue el l S St to ov ve e

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How to maintain consistent heat with your USSC 6041 Multi-Fuel Stove
Objective:During this instruction, you will learn how to maintain consistent heat with a USSC
6041 Multi-Fuel Stove. You will accomplish this by learning how to apply correct adjustments to
the pellet feed rate, the agitator speed setting, the draft fan speed, and the damper position.
Motivation: During this past winter (2013-2014) record amounts of snow and low
temperatures were set throughout the area. Heating costs soared across all of America. In some
areas, sources of fuel, such as propane, were rationed to ensure shortages will not affect mass
populations. Individuals using traditional woodstoves encountered issues if they had not stocked
up enough wood. Many are now turning towards pellet stoves as an alternate source of heat to
save money.
Class Set Up: This is a self-paced class with the benefit of hands-on practical exercise
under the supervision of a subject matter expert. The class consists of three lessons, which
include (1) cleaning your pellet stove, (2) loading pellets and turning on stove, and (3)
maintaining consistent heat. Each lesson is followed by a two-part check on learning. The first
part is a written assessment to confirm learning prior to the second, which will be a hands-on
practical exercise using a USSC 6041 Multi-Fuel Stove.
Notes to Student:
Training is in three lessons and should be accomplished within 1 to 2 hours. A subject matter
expert will be available throughout the training to provide answers and guidance, as needed or
requested. This class is not designed as a pass or fail class. It exists to provide you with all the
necessary tools, information, and confidence to use a USSC 6041 Multi-Fuel Stove. If you own
a stove, it’ll give you skills and knowledge to improve the efficiency of what you already do. If
you do not own a stove it will give you the confidence to use a stove if you should choose to buy
and put one in your home.
Page 4 provides safety precautions you will need to consider as you operate the USSC 6041
Multi-Fuel Stove.
On page 5, you will find a picture of the USSC 6041 Multi-Fuel Stove with annotations you can
reference throughout the class.
To begin Lesson One, read pages 6 to 11 to study the proper procedures for cleaning the USSC
6041 Multi-Fuel Stove. You will learn to identify key areas of the stove where airflow can be
constricted, effecting efficiency, and to clean all ash and fly ash from the stove. Lesson One will
be followed by a two part Check on Learning starting on page 12. The Lesson One Check on
Learning answer key can be found on page 26.

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To begin Lesson Two, read pages 14 to 17 to study how to identify the properties of wood
pellets and to properly load the pellet hopper. Also, you will learn the proper startup procedures
for the USSC 6041 Multi-Fuel Stove. Lesson Two will be followed by a two part Check on
Learning starting on page 18. The Lesson Two Check on Learning answer key can be found on
page 26.
To begin Lesson Three, read pages 20 to 23 to study the procedures for adjusting pellet feed
rate, agitator speed, draft fan, and damper to maintain a consistent heat. Lesson Three will be
followed by a two part Check on Learning starting on page 24. The Lesson Three Check on
Learning answer key can be found on page 26.
At the end of the instructional material, pages 27 to 28, a quick reference guide is provided for
your use. This aid can be kept near your stove to assist you during operations, until you feel
comfortable with the stove. It will still be helpful after that as a reminder.

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Safety Precautions
oDo not operate the heater if you smell smoke coming from the heater. Push the “OFF”
Touch pad, monitor your heater, and call your dealer.
oNever use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid, or similar
liquids to start or ’freshen up’ a fire in this heater. Keep all such liquids well away from the
heater while it is in use.
oDon’t unplug the heater if you suspect a malfunction. Push the “OFF” Touch pad and
inspect the heater.
oNever try to repair or replace any part of the heater unless instructions for consumer are
given in this manual.
oAll other work should be done by a trained technician.
oThe viewing door must be closed and latched during operation.
oNever block free airflow through the open vents of the unit.
oThe pellet appliance exhaust system works with negative combustion chamber pressure
and a slightly positive chimney pressure, therefore the exhaust system must be
completely airtight and properly installed. All pellet vent joints must be sealed with HI-
TEMP RTV silicone sealant
oThis unit must be properly installed to prevent the possibility of a house fire. The
instructions must be strictly adhered to. Do not use makeshift methods, which may
compromise the installation.
oYour heater requires periodic maintenance and cleaning. Failure to maintainyour heater
may lead to smoke spillage in your home.
oAllow the heater to cool before carrying out any 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 non-combustible surface or on the ground, well away from all combustible
materials, pending final disposal.
oThe heater will not operate during a power outage. If a power outage does occur, check
the heater for smoke spillage and open a window if any smoke spills into the room.
oKeep foreign objects out of the hopper.
oDisconnect the power cord before performing any maintenance. NOTE: Touching the
OFF touch pad does not disconnect all power to the heater.
oDo not place clothing or other flammable items on or near the heater. Because this
heater can be controlled by a thermostat there is a possibility of the heater turning on and
igniting any items placed on or near it.
oEducate all children on the dangers of a high-temperature heater.
oYoung children should be supervised when they are in the same room as the heater.
oCaution: NEVER PUT FINGERS NEAR AUGER. Pellet fuel is fed to the burn pot by a
screw auger that is driven by a high torque motor.
oDo not burn with insufficient combustion air. A periodic check is recommended to ensure
proper combustion air is admitted to the combustion chamber. Setting the proper
combustion air is achieved by adjusting the slide damper located on the right hand side of
the appliance.
oSoot or creosote may accumulate when the stove is operated under incorrect conditions
such as an extremely rich burn (black tipped, lazy orange flames).

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Stove Schematic

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Lesson One:
Cleaning
Your Stove
Objective: In this lesson you learn how to properly clean the USSC 6041 Multi-Fuel Stove so
that it is free of ash, creosote, and fly ash; thus allowing air to freely move though air vents. You
will learn to identify key areas of the stove where airflow can be constricted and proper cleaning
techniques to complete the task.
Motivator: A properly cleaned stove will provide a dependable flame and result in efficiently
burning pellets to provide a consistent heat level. The worst-case scenario of an unclean stove
is it could cause carbon monoxide poisoning or a house fire.

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Assemble Cleaning Items
Before cleaning your stove the below listed tools will need to be assembled.
Each tool is followed by a brief description of its purpose. Since the Ash-Vac
and chimney brush are unique items, their pictures are to the right.
Ash-Vac
Chimney Brush
Equipment
Purpose
Paint Brush
Use to brush fly ash from the inner walls of the burn
chamber.
Ash-Vac
Specially designed vacuum cleaner with filter to pick up
fine ash. Housing is a metal tank, has an aluminum
wand and both filters and hose are fire retardant.
3.5” chimney brush
Hard bristled brush used to clean ash from inside of
the exhaust pipe.
Bucket with Warm
Water
Used for soaking ash pan to loosen up hardened ash.
Flathead Screwdriver
Used to scrape hardened ash from ash pan.
Cleaning the Burn Chamber
The USSC 6041 Multi-Fuel Stove operates on a negative pressure venting system. Essentially,
this means the stove draws air from the room it is in and pulls it through the stove for oxygen.
The air is then pushed out of the exhaust stovepipe. At no time after the air enters the stove is
air returned back into the room since the entire stove and stovepipes are sealed. Because of
this, it is important to clean the stove weekly in order to maintain proper airflow, thus oxygen, to
the flame. When the air is restricted the pellets will not burn efficiently, resulting in poor heat
output of the stove.
Step One: Remove Ash Pan and Vermiculite
Action One: Remove the door from stove to provide access to ash pan and vermiculite (Figure 1)
Action Two: Remove cotter pin from agitator Annotated by Yellow circle in Figure 2.
Action three: Remove burn pan by turning agitator until two prongs are facing down and three
up. Lift up on the left side of burn pan and the entire assembly should lift out.
Action Four: Remove vermiculite (Figure 3) by carefully pulling bottom out approximately 2
inches and then pull down until vermiculite clears out of catch bar.
Figure 1
Figure 2
Figure 3

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Step Two: Clean Ash Pan and Vermiculite
Action One: Use paintbrush to remove fly ash from vermiculite by brushing in the direction of the
grooves until all fly ash is removed (Figure 4). Place vermiculite aside in a safe place.
(Caution: Vermiculite is particularly brittle and if handled roughly could break)
Action Two: Put ash pan and agitator into bucket of warm water and allow to sit until hardened
ash is loosened. Normally, the remainder of the stove can be cleaned while this process occurs.
When hardened ash is loose, use Flathead screwdriver to scrape excess ash from ash pan and
agitator (Figures 5 & 6). Rinse numerous times and then dry off. Repeat as necessary until all
hardened ash has been removed. Figures 7 depicts a clean ash pan.
Figure 4
Figure 5
Figure 6
Figure 7
Step Three: Clean Excess Ash from Walls and Side Air Vents
Action: Use paintbrush to remove fly ash from walls and ceiling of
burn chamber (Figure 8). Attention should be placed on sides of
burn chamber where the vents are. Figure 9 depicts the right side
air vent and a burn chamber wall cleaned of fly ash.
Figure 8
Figure 9

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Step Four: Vacuum Burn Chamber and Rear Vent Chamber
Action One: Use Ash-Vac to thoroughly vacuum burn chamber of all ash (Figure 10).
Action Two: Locate four entry points to the rear vent chamber, behind the burn chamber, as
indicated in Figure 11 where the yellow circles are. For the two lower entry points of the rear
vent chamber, lift and remove trapdoors.
Action Three: Use Ash-Vac, with small crevice tool, to vacuum rear vent chamber via the four
entry points. Figures 12 & 13 depict a clean rear vent.
Action Four: Replace the two trapdoors at the bottom of the rear vent chamber.
Figure 10
Figure 11
Figure 12
Figure 13
Step Five: Replace Ash Pan and Vermiculite
Action One: Replace vermiculite by carefully inserting it into catch bar and easing bottom
towards the back of burn chamber until it is properly seated.
Action Two: Replace burn pan and agitator by ensuring agitator is properly placed with two
prongs facing down and three up. Place right side of burn pan and agitator into slot and then
slide left side down until firmly seated.
Action three: Replace cotter pin to agitator
Action Four: Replace stove door if removed earlier.

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Clean Exhaust Pipe
As stated above, the USSC 6041 Multi-Fuel Stove operates on a negative pressure venting
system. The exhaust pipe is the final portion of this system and if restricted will hamper
operation of the stove and will decrease the ability to properly burnt pellets and maintain a
consistent heat. Normally, the exhaust pipe does not require as much cleaning as the burn
chamber and will only need attention every second or third cleaning of the burn chamber. As
you operate your stove you will be able to determine how often it needs to be cleaned.
Step One: Remove terminator cap and cleanout cover
Action One: Gently turn base of terminator cap (Figure 14) counter clockwise, ensuring that the
exhaust pipe does not turn as well, until the terminator cap stops and then pull off exhaust pipe.
Action Two: Gently turn cleanout cover (Figure 15) counter clockwise, ensuring that the exhaust
pipe does not turn as well, until the cleanout cover stops and then pull off exhaust pipe.
Figure 14
Figure 15
Step Two: Brush out Exhaust Pipe
Action: Figure 16 shows the exhaust pipe with fly ash and creosote in it and in need of cleaning.
Insert a 3.5” chimney brush into stovepipe as far as it will go and pull out in a swift manner.
Repeat this process until stovepipe is clear of all fly ash and creosote. Start with the outside
pipe until it is clean and then move inside and work the pipe from that side until clean. Figure 17
shows a stovepipe clear of all fly ash and creosote.
Figure 16
Figure 17

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Step Three:Replace Terminator Cap and Cleanout Cover
Action One: Properly line up terminator cap slot with exhaust pipe grove; gently slide terminator
cap onto exhaust pipe; and the turn clockwise until snug.
Action Two: Properly line up cleanout cover slot with exhaust pipe grove; gently slide cleanout
cover onto exhaust pipe; and the turn clockwise until snug.

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Lesson One –Clean Stove: Check on Learning
Instructions: This end of lesson check on learning will consist of two parts. Part one is a written
exam to check your understanding of cleaning the stove prior to the hands-on practice. Part two
will be hands-on practice with a subject matter expert providing over the shoulder assistance to
ensure proper cleaning of the stove.
Lesson One –Self-check
1. List all required cleaning gear:
2. On average, how often should you clean your burn chamber?
3. List the major areas which need to be cleaned of ash, fly ash and hardened ash:
4. Which picture best depicts a clean burn chamber with all fly ash brushed away?
a.
b.
c.
5. Which picture best depicts a clean burn chamber with all ash vacuumed out?
a.
b.
c.
6. Which picture best depicts an ash pan with all hardened ash removed?
a.
b.
c.
7. How often do you need to clean the exhaust pipe?
8. What should be fully cleaned out of exhaust pipe?
9. Which picture best depicts a clean burn chamber with all fly ash brushed away?
a.
b.
c.

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Lesson One –Hands-On Practical Exercise
You will now have an opportunity to work on an actual USSC 6041 Multi-Fuel Stove and clean it under the guidance of
the instructor. The instructor will use the following checklist to ensure you are able to perform each step while cleaning
the USSC 6041 Multi-Fuel Stove.
Skills
Performance Objectives
Standard
Met?
Clean stove
Given USSC 6041 Multi-Fuel Stove, clean stove leaving it free of fly ash
and all air vents permit air to move through freely.
Y / N
Assemble all cleaning
gear
Given a USSC 6041 Multi-Fuel Stove, in need of cleaning, and a job aid,
assemble all cleaning gear. Assemble all cleaning items listed in the job
aid.
Y / N
Clean burn chamber
Given USSC 6041 Multi-Fuel Stove and proper cleaning gear, clean the
burn chamber by removing all fly ash, ash, and hardened ash until it is all
removed and the air vents are clean.
Y / N
Remove ash pan and
vermiculite
When preparing to clean a USSC 6041 Multi-Fuel Stove burn chamber,
remove ash pan and vermiculite. Remove items per instruction manual in
proper order so vermiculite does not break.
Y / N
Clean excess ash off
walls and out the side
air vents
Given a paintbrush, brush access fly ash off burn chamber walls and out
of side air vents, until all fly ash is removed.
Y / N
Vacuum burn chamber
and rear vent chamber
Given an Ash-Vac, vacuum all ash out of burn chamber and vent
chamber, until all ash is removed.
Y / N
Clean ash pan and
vermiculite
Given a paintbrush, brush all fly ash off of vermiculite until all loose ash is
removed.
Given a bucket containing warm water, soak and then clean hardened
ash off ash pan, until hardened ash is all removed.
Y / N
Replace ash pan and
vermiculite
Upon completion of cleaning burn chamber, vents, ash pan, and
vermiculite, replace ash pan and vermiculite in proper order so
vermiculite does not break.
Y / N
Clean exhaust pipe
Given USSC 6041 Multi-Fuel Stove and proper cleaning gear, clean the
exhaust pipe by removing all fly ash and creosote.
Y / N
Remove terminator cap
and cleanout cover
When preparing to clean a USSC 6041 Multi-Fuel Stove exhaust pipe,
remove terminator cap and cleanout cover without damaging exhaust
pipe.
Y / N
Brush out exhaust pipe
Given a 3.5” chimney brush, brush out exhaust pipe until no further fly
ash and creosote is present.
Y / N
Replace terminator cap
and cleanout cover
Upon completion of cleaning out exhaust pipe, replace remove terminator
cap and cleanout cover without damaging exhaust pipe.
Y / N

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Lesson Two:
Load Pellets
&
Turn Stove
On
Objective: In this lesson you learn how to identify types of pellets, whether they have too much
moisture, and how to properly load them into the stove. Also learned in this lesson are the
proper steps to turn on the USSC 6041 Multi-Fuel Stove.
Motivator: A pellet with too much moisture will not burn effectively and will decrease the
efficiency of the USSC 6041 Multi-Fuel Stove’s heat output. Also, a pellet with too much
moisture in it will produce thicker ash which will block vents and require more frequent
cleanings.

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Load Pellets
Each time you load pellets into the pellet hopper, many considerations need to be made prior to
just loading your pellets into the stove. The following steps will cover types of pellets, where and
when to by, how to store them and last if the pellets you have on hand are even good to use.
Step One: Classify Types of Pellets
It is important to understand the difference between soft wood hard wood pellets. The properties
of each will affect what settings on the stove to be made. Hard wood pellets generally burn
cleaner and produce a more consistent heat, but softwood will burn hotter while creating more
ash. The qualities of both hardwood and soft wood pellets are listed below.
Hardwood
Softwood
Lower moisture content
Denser fuel
Burns longer
Hotter coals
Less creosote buildup
Burns hotter initially
Easy to light
Produces more ash
Burns up more quickly
Step Two: Purchase Pellets
An important consideration prior to starting your USSC 6041 Multi-Fuel Stove is having an
appropriate amount of pellets on hand. On an average winter, you may burn through a 3 tons of
pellets. Pellets normally come in 40 pounds bags. The higher the feed rate you set your stove
to, the more pellets you will go through in a week. Table 3 shows an average rate of
consumption per day, and then depicts how my bags to buy based off of various feed rates.
Each stove burns at a different rate based off of a variety of factors, such as house type
or pellet type. You’ll have to closely monitor your stove for the first season in order to
validate your particular feed rate versus consumption per day.
Feed rate 1 to 3 = 1 bag/day
Feed rate 4 to 7 = 1.3 bag/day
Feed rate 8 to 10 = 1.7
bag/day
Feed Rate = 1 to
3
Feed Rate = 4 to
7
Feed Rate = 8 to 10
1 Week’s
Supply
7
10
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Step Three: Store Pellets
Since it is a normal practice to buy pellets in bulk, to save money, we will now discuss proper
storage of your pellets. You will want to store your pellets in a dry area free from flooding, mold,
and excessive humidity. Pellets can be stored outside, but they need to be in a shed or if a
structure such as a carport, it is recommended to keep them up off the ground via a pallet. If
stored in this manner, a good practice to follow is to place some type of barrier between the

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pellets in the ground, even if on a pallet. This will prevent mice and other animals trying to dig
into the pellets from the underside. Also, placing a waterproof tarp over the pellets helps cut
down on moisture.
Step Four: Check Pellets For Moisture
As stated before, it is important not to use pellets with too much moisture in them. Figure 18
shows acceptable pellets. A normal pellet will have a smooth cylindrical body, with its only
jagged edges being on the ends as a result of manufacturing. When a pellet gets wet it will
expand and the bonding agent used to keep it at a consistent size will break down. Figure 19
depicts a good pellet (shown on the left) beside a pellet has gotten wet. 20 shows a group of
pellets from the side that have been wet. Once a pellet gains any moisture beyond
manufacturing, it should no longer be used in your pellet stove.
Figure 18
Figure 19
Figure 20
Step Five: Load Pellets
When it comes time to load ensure that pellets are not in the auger safety switch. (Figure 21)
The auger safety switch is located near the back left hinge. Also, when loading pellets, ensure
that the pellet hopper is not overfilled to point that the lid will not close. Check hopper twice a
day to ensure there are enough pellets in this hopper to last until next check.
Figure 21

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Turn Stove On
Action One: Prior to operating your USSC 6041 Multi-Fuel Stove Ensure all doors, lids, and
cleanouts are properly closed, and then turn on.
Action Two: Refer to table below for various command inputs for the stove. Press the on button
and set initial pellet rate, for startup you will select 2.
A: Pellet Feed Rate
B: Room Fan
C: Draft Fan
D: Agitator Control
E: On
F: Off
G: Auger Delay
H: Set Mode
Action Three: Monitor the burn chamber until pellets ignite. Figure 22 shows a good start up
flame. Scenarios to watch for include; too many pellets in burn pot, which constricts airflow;
pellet feed rate too fast, which will knock out the flame; or draft fan set too high, which will blow
flame out. A best practice for starting up the stove is to set pellet feed rate at 2, and setting draft
fan at seven, while using damper to fine-tune the amount of air. Occasionally, press the auger
delay the stop feed of pellets for one minute. This keeps the burn pan from filling too quick and
will help prevent pellets from knocking the flame out.
Figure 22

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Lesson Two –Load Pellets and Turn on Stove: Check on Learning
Instructions: This end of lesson check on learning will consist of two parts. Part one is a written
exam to check your understanding regarding proper pellet selection, loading the stove and
turning the stove on. Part two will be hands-on practice with a subject matter expert providing
over the shoulder assistance to ensure proper loading and startup of the stove.
Lesson Two –Self-check
1. Where is the stove auger safety switch located in the pellet hopper?
2. Draw line from the pellet types to the properties which best describe either hardwood or
softwood pellets.
3. Give the following pellet stove consumption rates; calculate how many 40lbs bags of
pellets to buy for one week or one month.
Feed rate 1 to 3 = 1 bag/day
Feed rate 4 to 7 = 1.3
bag/day
Feed rate 8 to 10 = 1.7 bag/day
Feed Rate = 1 to 3
Feed Rate = 4 to 7
Feed Rate = 8 to 10
1 Week’s Supply
1 Month’s Supply
4. State the proper procedures for storing wood pellets.
5. Which picture best depicts unacceptable pellets due to high moisture?
a.
b.
c.
6. List proper steps to start the USSC 6041 Multi-Fuel Stove.

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Lesson Two –Hands-On Practical Exercise
You will now have an opportunity to work on an actual USSC 6041 Multi-Fuel Stove; selecting proper pellets and
starting the stove under the guidance of the instructor. The instructor will use the following checklist to ensure you
are able to perform each step while loading pellets into and turning on the USSC 6041 Multi-Fuel Stove.
Skills
Performance Objectives
Standard
Met?
Load pellets
Given a USSC 6041 Multi-Fuel Stove and pellets load the pellet hopper
to a level which will allow the lid to close in the stove auger safety switch
to not engage.
Y / N
Classify types of pellets
Prior to purchasing wood pellets for a USSC 6041 Multi-Fuel Stove,
classify types of pellets. Be capable of discriminating the difference in
properties between hardwood and softwood.
Y / N
Purchase pellets
Given a USSC 6041 Multi-Fuel Stove and a desired pellet feed rate,
purchase enough pellets to last for a predetermined amount of time.
Y / N
Store pellets
Given soft or hard wood pellets, store pellets in an area will maintain
minimal moisture levels in the pellets.
Y / N
Check pellets, is there
any moisture
Given soft or hard wood pellets that have been stored properly, ensure
there is no moisture within the pellets before use.
Y / N
Turn stove on
Given a USSC 6041 Multi-Fuel Stove turn stove on. Follow all startup
steps.
Y / N

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Lesson Three:
Maintain
Consistent
Heat
Lesson Three –Maintain Consistent Heat
Objective: In this lesson you learn how to adjust the pellet feed rate, agitator speed, draft fan,
and damper on your USSC 6041 Multi-Fuel Stove to maintain a consistent heat.
Motivator: A properly adjusted USSC 6041 Multi-Fuel Stove will evenly burn pellets, with
minimal ash produced, and produce a predictable level of heat. If the stove is adjusted
improperly, pellets will burn poorly, producing high ash, and decreasing bestows efficiency, thus
raising the cost of operation.