Sun Mountain Stove Works Whitney User manual

OWNER'S GUIDE
Sun Mountain Stove Works Inc.
Wood Pellet Stoves
Models Covered:
Whitney™

Copyright 2022 Sun Mountain Stoves
All information contained within this publication is based on the latest product
information available at the time of publication. Product improvements or other
changes may result in differences between this Owner's Guide and the stove. Depic-
tions and/or procedures in this publication are intended for reference use only.
No liability can be accepted for omissions or inaccuracies. Sun Mountain Stove
Works Inc. reserves the right to make changes at any time, without notice and
without incurring obligation to make the same or similar changes to stoves pre-
viously built. Any reprinting or reuse of the depictions and/or procedures contained
within, whether whole or in part, is expressly prohibited.
Whitney™ is a trademark of Sun Mountain Stove Works Inc.

Table of Contents
Owner's Guide - Sun Mountain Stoves 1
About This Manual 1
SAFETY AND EPA COMPLIANCE 2
Specifications 3
Tamper Warning 4
Smoke and Carbon Monoxide Detectors 4
Using the Stove 5
Important Safety Instructions 5
Use The Correct Fuel 6
Ensure Proper Ventilation 6
Starting the Stove 7
Shutting Down the Stove 13
Emptying the Ashtray 14
Clearing the Heat Exchanger 15
Notes on Running the Stove 16
Maintenance and Cleaning 17
Installation 19
Overview 19
Important Safety Notes 22
Clearance to Combustibles 24
Corner Installation (all Models) 26
Parallel Installation (all Models) 28
Mobile Home Installation 30
Replacement Parts 31
Limited Warranty 39
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Owner's Guide - Sun Mountain Stoves
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Owner's Guide - Sun Mountain
Stoves
About This Manual
This manual describes the operation and maintenance of the Sun Mountain family
of gravity fed wood pellet heaters, or "pellet stoves".
Sun Mountain pellet stoves meet United States Environmental Protection Agency
emission limits for wood-burning appliances sold after May 15, 2020.
Under specific test conditions, Sun Mountain pellet stoves:
lProvides heat at rates ranging from 7591 to 25,102 Btu/hr
lOperates at an efficiency rate of 67.8% HHV
lEmission results = 0.472 grams per hour
Note
Register your product online at sunmountainstoves.com . See the “Limited
Warranty” section for specific warranty information for your new purchase. Keep
your receipt with your records for any claims.
lSave these instructions.
lThis manual will help you to obtain efficient, dependable service from the
heater, and enable you to order repair parts correctly. Keep in a safe place for
future reference.
Please read this entire manual before installation and use of this pellet fuel-
burning room heater. Failure to follow these instructions could result in property
damage, bodily injury, or even death.
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Models Covered
Whitney
SAFETY AND EPA COMPLIANCE
This stove has been tested at OMNI Test Lab in accordance with ASTM 1509
Your pellet stove has been approved for installation in the USA and Canada. It may
also be installed in a manufactured or mobile home (for USA only).
Your stove conforms to UL 1482-11 (R2015), 2010, and Certified to
ULC S627-00, and (UM) 84-HUD.
A non-flammable Floor Protector pad must be installed that meets manufactured
floor protector requirements, and provides at least Type 1 Ember Protection.
Contact your local building or fire officials about restrictions and installation inspec-
tion requirements in your area.
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U.S. Environmental Protection Agency
Certified to comply with 2020 particulate emissions standards.
Sun Mountain Stove Works Inc.
sunmountainstoves.com
Tested & Listed by
Portland
Oregon USA
lOmni safety report #: 0569PS001S
lEPA report #: 0569PS001E
This wood heater needs periodic inspection and repair for proper operation. Consult
the owner’s manual for further information. It is against federal regulations to oper-
ate this wood heater in a manner inconsistent with the operating instructions in the
owner’s manual.
Specifications
HEATING SPECIFICATIONS
Estimated Fuel Burn Rate 1.36 to 3.79 (dry lbs/hr), 0.617 to 1.72 (dry kg/hr)
Estimated Burn Time 30 hrs (lowest setting)
Hopper Capacity 40lbs (18kg) / optional 80lbs (36kg)
Note: Pellet 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 & WEIGHT
Height/Width/Depth: 89"/36"/26" (2.26M/0.91M/0.05M)
Weight: 170lbs (77.11kg)
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Tamper Warning
Sun Mountain pellet stoves have a manufacturer-set minimum and maximum burn
rate that must not be altered.
It is against federal regulations to alter this setting or otherwise operate
this wood heater in a manner inconsistent with operating instructions in
this manual.
Smoke and Carbon Monoxide Detectors
Burning wood naturally produces smoke and carbon monoxide (CO) emissions.
Make sure all stove gaskets and chimney joints are in good working order and seal-
ing properly to ensure unintended exposure.
Carbon monoxide is a poisonous gas when exposed to elevated concentrations for
extended periods of time. Always use both smoke and carbon monoxide monitors
in areas having the potential to generate carbon monoxide.
A working smoke detector must be installed in the same room as this product.
Install a smoke detector on each floor of your home; incase of accidental fire from
any cause it can provide time for escape.
The smoke detector must be installed at least 15 feet (4,57 M) from the appliance
in order to prevent undue triggering of the detector when reloading.
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Using the Stove
It is highly recommended that the initial burn of your new stove be done
outdoors. The paint used to coat your stove a high temperature paint that is dry
upon arrival but has a final cure that happens during the initial burn. This cure will
last 20-30 minutes and will produce fumes and some smoke.
Important Safety Instructions
This wood heater needs periodic inspection and repair for proper operation. Consult
the owner’s manual for further information. It is against federal regulations to oper-
ate this wood heater in a manner inconsistent with the operating instructions in the
owner’s manual.
The temperatures of surfaces on your stove can get extremely hot during oper-
ation. It is essential to monitor foot traffic around the stove to prevent burns and
protect the overall safety of lives and property.
Always read and follow these instructions for safe use and maintenance of your
stove, and heed the following important safety warnings:
lSurfaces of the stove get EXTREMELY HOT!
lKEEP CHILDREN, PETS, CLOTHING AND FURNITURE AWAY. CONTACT MAY
CAUSE SKIN BURNS.
lBe aware that surfaces may still be hot for an extended period of time after
the stove has been shut down.
lEducate your family before beginning operation of your new stove.
lPeriodic cleaning and maintenance is required. Failure to clean and maintain
your stove and chimney may result in poor performance.
lALWAYS allow the stove to cool completely before performing any main-
tenance.
lNEVER leave young children or pets unattended around the stove when in
use.
lNEVER block free airflow through the open vents of the stove.
lNEVER place foreign objects in the hopper.
lNEVER use gasoline, gasoline type lantern fuel, kerosene, charcoal lighter
fluid, or similar liquids to start up or freshen up a fire in this stove. Keep all
such liquids well away from the stove while in use.
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lNEVER place flammable items on or near the stove.
lNEVER block the fresh air intake ports – this will seriously affect the per-
formance of the stove.
Use The Correct Fuel
The stove burns pelletized wood fuel only. Burning fuels other than wood pelletized
fuel is not permitted.
Pellets ¼” (6.35 mm) diameter and approximately 1” (25.4) long should be used.
We strongly recommend using premium Douglas Fir pellets or premium soft wood
pellets that contain .5% or less moisture content. Note that pellet quality and per-
formance may vary from brand to brand. Therefore, it is recommended to not buy
pellet fuel in bulk until experience has revealed the best pellet fuel available in your
area.
lDO NOT try to burn wet pellets or pellets that were previously opened and
have been stored in the elements. Pellets that are stored in the elements are
prone to absorbing moisture resulting in poor performance from the stove.
Storing opened pellets indoors or in an air tight container is recommended.
lStore pellet fuel in a dry area.
lStove performance not only depends on the quality of the pipe installation but
also on the quality of the pellet fuel introduced to the stove. Avoid the use of
pellets with excess fines, binders or high ash content. ONLY USE PREMIUM
GRADE PELLETS WITH A MOISTURE CONTENT OF .5% OR LESS. THE
MOISTURE CONTENT OF THE PELLETS WILL AFFECT THE PERFORMANCE OF
THE STOVE.
lDO NOT BURN GARBAGE OR FLAMMABLE FLUIDS SUCH AS GASOLINE,
NAPHTHA, ENGINE OIL OR ANY OTHER SUBSTITUTE MATERIALS.
DO NOT STORE PELLET FUEL WITHIN SPACE HEATER INSTALLATION
CLEARANCES OR WITHIN THE SPACE REQUIRED FOR CHARGING AND
ASH REMOVAL.
This appliance should only burn pellets graded as standard through an EPA-author-
ized graded fuel program such as the PFI (Pellet Fuels Institute) Standards Program
after May 16, 2020.
Ensure Proper Ventilation
WE RECOMMEND ALL SUN MOUNTAIN STOVES BE CONNECTED TO OUTSIDE AIR.
Check local building codes for compliance.
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Starting the Stove
DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE.
Use a hand-held propane torch to ignite your stove. A high quality torch with a
squeeze trigger ignition system works best.
Before starting the stove, inspect the primary burn chamber, secondary burn plate
unit and ashtray for soot build up and cleanliness. Perform any maintenance
required.
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Close the Draft Slide
Close the Draft Slide vent on the bottom tube before lighting the stove.
Fill the Hopper With Wood Pellets
FULLY CLOSE THE SLIDE GATE ON BOTTOM OF HOPPER BEFORE FILLING
IT WITH WOOD PELLETS.
This prevents the wood pellets from dropping into the burn chamber until the stove
is ready.
Ensure that the "Closed" mark on the slide is visible - this indicates that the slide is
fully closed. Note that it may be necessary to "tap" the slide to get it fully closed.
The slide has a sharp front edge that can cut through wood pellets that are in the
way of it closing. Use a wooden handle or other blunt instrument to tap on the slide
gate to cut through any wood pellets that are preventing the slide from closing
fully.
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To avoid damaging the slide, always tap the slide straight in. Tapping it from
above or from below may bend the slide out of shape, which could prevent it from
working properly.
Once filled, close the Hopper lid.
Note that wood pellets may be added to Hopper while the stove is in operation.
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Pre Heat the Stove
Before lighting the wood pellets, pre-heat the stove, to start an upward air draft.
THIS STEP IS CRITICAL FOR A CLEAN START-UP.
1. Fully close the Draft Slide on the bottom tube.
2. Unlatch and open the Service Door to access the burn chamber for lighting.
3. Insert the lit torch into the upper burn chamber tray, and aim the flame
towards the Grates at the top rear of the tray).
4. Hold the flame on the Grates at the top rear of the tray for about 2 minutes.
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Open the Slide Gate
Slide the Slide Gate at the bottom of the Hopper OUT to allow the pellets to drop
from the Hopper onto the Grates.
Ensure that the "Open" line on the Slide Gate is visible - this indicates that the slide
is fully opened.
NEVER TRY TO REGULATE THESTOVE WITH THEPELLET SLIDE GATE.
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Ignite the Wood Pellets
Keep aiming the flame at the Grates (primary burn basket) at the top rear of the
tray for another minute or two to ignite the pellets.
Close the Service Door
After a visual inspection by opening the Draft Slide briefly to verify the pellets are
burning, close the Service Door and latch it shut.
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DANGER! When in operation, the surfaces of this stove get
extremely hot. To avoid burns, never touch any surface of the
stove when it is running, or for at least two hours after it has
been shut off.
Adjusting the Temperature
Once the temperature gauge indicates 400°, the temperature can be controlled via
the Draft Slide on the bottom tube:
lOpen the Draft Slide to decrease the temperature
lClose the Draft Slide to increase the temperature
Shutting Down the Stove
1. Close the Draft Slide.
2. Push the Hopper Slide to the Closed position. This will stop the pellets from
dropping into the stove.
Ensure that the "Closed" mark on the slide is visible - this indicates that the
slide is fully closed. Note that it may be necessary to "tap" the slide to get it
fully closed.
The slide has a sharp front edge that can cut through wood pellets that are in
the way of it closing. Use a wooden handle or other blunt instrument to tap on
the slide gate to cut through any wood pellets that are preventing the slide
from closing fully.
To avoid damaging the slide, always tap the slide straight in. Tapping it from
above or from below may bend the slide out of shape, which could prevent it from
working properly.
NOTE: The stove will continue to run for approximately one hour after the Hopper
Slide has been closed.
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DANGER! When in operation, the surfaces of this stove get
extremely hot. To avoid burns, never touch any surface of the
stove when it is running, or for at least two hours after it has
been shut off.
Emptying the Ashtray
Always empty the ashtray before use, and only after the stove has had several
hours to cool since the last use.
1. Open the Service Door.
2. Slide the lower tray out, and safely dispose the
ashes.
3. Slide the tray back into position.
4. Close the service door.
Letting the ashtray fill up with ashes can choke the stove causing a decrease in tem-
perature and increase the possibility of smouldering fuel and smoke.
Disposal of Ashes
Ashes should be placed in a metal container with a tight fitting lid. The closed con-
tainer of ashes should be placed on a noncombustible floor or on the ground, well
away from all combustible materials, pending final disposal. If the ashes are dis-
posed of by burial in soil or otherwise locally dispersed, they should be retained in
the closed container until all cinders have thoroughly cooled.
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Clearing the Secondary Burn Plate
CLEARING YOUR SECONDARY CHAMBER IS REQUIRED WHILE BURNING
HARDWOOD PELLETS.
To empty the Ashtray:
Surfaces will be hot.
1. Remove the Ashtray, dispose of any ashes, and reinstall Ashtray.
2. Inspect the Secondary Burn Chamber:
Any layers of ash should be removed and discarded:
Lightly tap the Secondary Burn Chamber on the edge of your disposal con-
tainer to clear any clogged hole(s) in the burn plate. This will resume proper
air flow through the burn plate; reinstall the Secondary Burn Chamber.
Experience will determine how often you need to clear the Secondary Burn
Chamber and Ashtray while the stove is in operation.
Until you have establish a regular routine, do not leave the stove unattended
for long periods of time.
Clearing the Heat Exchanger
It is normal for ash to collect in the Heat Exchanger. Look for ash build up in the
heat exchanger by moving the draft slide to the all the way open position. Exper-
ience will determine how often the heat exchanger needs to be cleared of ash build
up. A shop vacuum works well for heat exchanger ash removal.
DO NOT ATTEMPT TOCLEARTHEHEATEXCHANGER WHILE THE STOVE IS IN
OPERATION.
Failure to keep a clean burn chamber or secondary burn plate can result in poor
stove performance.
Letting ash build up into the primary burn basket can cause choking of the stove
and increase the risk of smoldering fuel and or smoke spillage.
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Notes on Running the Stove
If smoke becomes present during ignition, it is likely due to the pellets starting to
burn before the draft is established. You will need to establish a better draft before
proceeding to lightening the pellets. In this case, reposition the torch head so the
flame is burning across the bottom of the burn basket not directly on it.
lWE RECOMEND ALL SUN MOUNTAIN STOVES BE CONECTED TO OUTSIDE
AIR. Check local building codes for compliance.
lKeep foreign debris out of the hopper.
lVacuStack™ chimney caps are recommended when experiencing high wind
issues or fluctuating temperatures or low heat output. These chimney caps
are designed to increase draft on any chimney by causing a vacuum effect
through the flue below when the air moves past the cap.
In Case of Temperature Drop
If you experience a temperature drop after several hours of operation:
1. Dump the ashtray and dispose of ashes.
2. Clear the secondary burn plate.
If this does not bring the temperature back up, then it may be necessary to clear a
Pellet Jam in the vertical pellet feed tube beneath the Hopper.
Clearing a Pellet Jam
In some cases, the vertical pellet feed tube beneath the Hopper can get jammed
with wood pellets.
1. Fully close the Slide Gate on the bottom of the Hopper, and run the stove on
high for approximately 35 minutes.
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