Enviro WINDSOR User manual

PELLET STOVE
Windsor
PLEASE READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE
OF THIS PELLET-BURNING ROOM HEATER. FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, BODILY INJURY
OR EVEN DEATH.
Contact your building or fire officials about restrictions and installation
inspection requirements in your area.
SHERWOOD INDUSTRIES IS AN ENVIRONMENTALLY RESPONSIBLE COMPANY. THIS MANUAL IS PRINTED ON RECYCLED PAPER.
PLEASE KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
TECHNICAL MANUAL
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50-836

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Table of Contents
Introduction.............................................................................................................3
Rating Label Location.....................................................................................3
Important Safety Data....................................................................................3
Safety Warnings And Recommendations..........................................................3
Operating Instructions...............................................................................................5
Thermostat Installed......................................................................................5
Turning Your Pellet Stove Off...........................................................................5
Slider/Damper Installation and Operation.........................................................6
Installation...............................................................................................................7
Deciding Where to Locate Your Pellet Appliance................................................7
Dimensions....................................................................................................7
Exhaust and Fresh-Air Intake..........................................................................8
Removing Your New Stove From The Pallet......................................................8
Vent Termination Requirements.......................................................................9
Clearances to Combustibles...........................................................................10
Alcove Clearances........................................................................................10
Horizontal Through Wall Installation..............................................................11
Straight Through Wall Installations................................................................12
Through Wall With Vertical Rise Installations..................................................12
Vertical Installation.......................................................................................13
Hearth Mount Installation..............................................................................14
Exterior Mounted Exhaust Blower...................................................................15
Typical Through Wall Outside Termination Intallation......................................16
Through Wall Vertical Intallation....................................................................17
Troubleshooting......................................................................................................18
Wiring Diagram......................................................................................................20
Parts List................................................................................................................21
Parts Diagram - Components....................................................................................22
Parts Diagram - Steel...............................................................................................23
Warranty................................................................................................................24
Installation Data Sheet.............................................................................................25

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Fuel: This pellet stove is designed and approved to only burn wood pellet fuel with up to 3% ash
content. Dirty fuel will adversely affect the operation and performance of the unit and may void the
warranty. Check with your dealer for fuel recommendations.
THE USE OF CORDWOOD IS PROHIBITED BY LAW.
Soot: Operation of the stove with insufficient combustion air will result in the formation of soot which
will collect on the glass, the heat exchanger, the exhaust vent system and may stain the outside of the
house. This is a dangerous situation and is inefficient. Frequently check your stove and adjust the slider/
damper as needed to ensure proper combustion. See: “Operation - Slider/Damper”
Cleaning: There will be some build up of fly ash and small amounts of creosote in the exhaust. This
will vary due to the ash content of the fuel used and the operation of the stove. It is advisable to inspect
and clean the exhaust vent annually or every two tons of pellets.
Ashes: Disposed ashes should be placed in a metal container with a tight fitting lid. The closed container
of ashes should be on a non-combustible floor on the ground, well away from all combustible materials
pending final disposal. If the ashes are disposed of by burial in soil or otherwise locally dispensed, they
should be retained in the closed container until all cinders have been thoroughly cooled.
Electrical: THE USE OF A SURGE PROTECTED POWER BAR IS RECOMMENDED.
The maximum power requirement is 700 watts (3.1 amp). The stove has a grounded electrical cord and
should be connected to a standard 240 volt, 50-Hz grounded electrical outlet. Make sure the electrical
cord is not trapped under the appliance and that it is clear of any hot surfaces or sharp edges. When
installing the stove in a mobile home, it must be electrically grounded to the steel chassis of the home
and bolted to the floor in accordance with applicable local, state or federal codes.
IMPORTANT SAFETY DATA:
SAFETY WARNINGS AND RECOMMENDATIONS:
Introduction
RATING LABEL LOCATION:
The rating label is located on the back of the hopper.
To prevent the possibility of a fire, this appliance must be properly installed by following
the installation instructions. Please read this entire owner’s manual before installing or
operating your ENVIRO pellet stove. Failure to follow these instructions may result in
property damage, bodily injury, or even death. Contact your local building or fire officials
to obtain a permit and anyinformation on any installation restrictions and inspection
requirements for your area.
An ENVIRO dealer will be happy to assist you.
THE STOVE’S EXHAUST SYSTEM WORKS WITH NEGATIVE COMBUSTION CHAMBER
PRESSURE AND A SLIGHTLY POSITIVE CHIMNEY PRESSURE.
IT IS VERY IMPORTANT TO ENSURE THAT THE EXHAUST SYSTEM
BE SEALED AND IS AIRTIGHT.

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Glass: Do not abuse the glass by striking or slamming the door. Do not attempt to operate the stove
with broken glass. The stove uses ceramic glass. Replacement glass must be purchased from an ENVIRO
dealer. Do not attempt to open the door and clean the glass while the unit is in operation or if glass is
hot.
Flammable Liquids: Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid,
or similar liquids to start or “freshen up” a fire in the heater. Keep all such liquids well away from the
heater while it is in use.
Smoke Detector: Smoke detectors should be installed and maintained in the structure when installing
and operating a pellet burning appliance.
Operation: The ash pan and door must be closed securely for proper and safe operation of the pellet
stove. Also ensure all gaskets on the door are checked and replaced when necessary.
KEEP ASH PAN FREE OF RAW FUEL.
DO NOT PLACE UNBURNED OR NEW PELLET FUEL IN ASH PAN. A fire in the ash pan may occur.
Installation: Be sure to maintain the structural integrity of your home when passing a vent through
walls, ceilings, or roofs.
DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS UNIT.
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
Fresh air: Must be connected to all units installed in Mobile Homes as well as “Air Tight Homes” (R2000).
Fresh air intake is recommended on all installations. Failure to install intake air may result in poor
performance, smoke, property damage, house fire, bodily injury or death under certain conditions.
If you have any questions with regards to your stove or the above-mentioned information, please feel
free to contact your local dealer for further clarification and comments.
SINCE SHERWOOD INDUSTRIES LTD. HAS NO CONTROL OVER THE INSTALLATION
OF YOUR STOVE, SHERWOOD INDUSTRIES LTD. GRANTS NO WARRANTY IMPLIED
OR STATED FOR THE INSTALLATION OR MAINTENANCE OF YOUR STOVE.
THEREFORE, SHERWOOD INDUSTRIES LTD. ASSUMES NO RESPONSIBILITY FOR ANY
CONSEQUENTIAL DAMAGE(S).
SAVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE
Introduction

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THERMOSTAT INSTALLED:
Operating Instructions
A) HI / LOW: when the jumper
is placed on only one of the J9
pins, then the control board is in
a HI / LOW mode of thermostat
operation (factory setting).
B) ON / OFF: If both pins of J9
are jumped (covered) then the
control board is in an ON / OFF
mode of thermostat operation
Remove jumper wire and
intall thermostat wires here
This control board can be placed into two different thermostat modes: when the jumper is not placed on
both pins of J9 then the control board is in a HI / LOW mode of thermostat operation(factory setting). If
both pins of J9 are jumped then the control board is in an ON / OFF mode of thermostat operation.
1. Install the thermostat in a location that is not too close to the unit but will effectively heat the desired
area.
2. Install a 12 or 24 Volt Thermostat using an 18 x 2 gauge wire from the unit to the thermostat.
3. If the unit has been placed in the HI / LOW mode, the unit will be taken to a low or idle setting when
the thermostat is not calling for heat. When the thermostat calls for heat, the unit will go to the setting
that is displayed on the control board Heat Indicator.
4. If the unit has been placed in the ON /OFF thermostat mode, the unit will shut OFF when the
thermostat is not calling for heat. When the thermostat calls for heat, the unit will go through an
ignition sequence once again and relight.
TURNING YOUR PELLET STOVE OFF:
To turn the unit OFF, simply press the ON / OFF button. All LED lights will go out. This will stop the feed
of pellets. The blowers will continue to operate and cool the stove. When cool enough, the stove will shut
down.

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SLIDER/DAMPER INSTALLATION AND OPERATION:
Operating Instructions
This is used to regulate the airflow through the pellet stove.
A Qualified Service Technician or Installer should set the Slider Damper. This slider damper should be set
only on a hot stove (30 minutes or more) by placing a Magnehelic Pressure Gauge in the firebox (test
port located in the center of the stoves just below the door opening). Set the slider damper so that the
pressure is 12” WC (.029 Kpa)
The Slider Damper has been pre-set at the factory for German test pellet fuel.
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If, after long periods of burning, the fire builds up and overflows the burn pot or there is a build up of
clinkers, this would be a sign that the pellet quality is poor and the slider damper must be pulled out to
compensate.
Pulling the slider damper out gives the fire more air.
The easiest way to make sure that an efficient flame is achieved is to see the characteristics of the fire:
• A tall and lazy flame with dark orange tips requires more air – Open slider / damper up.
• A short and brisk flame, like a blowtorch, has too much air – Close slider / damper down.
• If the flame is in the middle of these two characteristics with a bright yellow/orange, active flame then
the air is set for proper operation.
SPECIAL NOTES:
Pellet quality is a major factor in how the Pellet stove will operate. If the Pellets have a high moisture
content or ash content the fire will be less efficient and has a higher possibility of the fire building up
and creating clinkers (hard ash build-up).
The slider damper is located
behind the left side panel. Undo
the two T-20 torx screws that
hold the inspection cover on the
left side and remove.
The combustion exhaust blower
is a variable speed blower
controlled by the heat output
button.
If the fire should happen to
go out and the heat output
has been set on the lowest
setting, then use the auger trim
button to increase feed rate or
the Slider Damper should be
pushed in slightly, decreasing
the air in the firebox.

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DIMENSIONS:
UNIT DIMENSIONS
HEIGHT: 27 1/8” (68.89 cm)
WIDTH: 25 5/8” (65.08 cm)
DEPTH: 26 1/8” (66.35 cm)
HEARTH PAD:
The floor protector must be non-
combustible, extending beneath the
stove the full width and depth of the
unit including 6 “ inches (15.2cm) in
front for ember protection.
WIDTH: 25 1/8” (65.08 cm)
DEPTH: 32 1/8 “ (81.59 cm)
DECIDING WHERE TO LOCATE YOUR PELLET APPLIANCE:
Installation
1. Check clearances to combustibles.
2. Do not obtain combustion air from an attic, garage, or any unventilated space. Combustion air may be
obtained from a ventilated crawlspace.
3. Do not install the stove in a bedroom.
4. You can vent the stove through an exterior wall behind the unit or connect it to an existing masonry or
metal chimney (must be lined if the chimney is over 6” in diameter, or over 28 sq. inches cross sectional
area). An interior vent can be used with approved pipe passing through the ceiling and roof.
5. Locate the stove in a large and open room that is centrally located in the house. This will optimize heat
circulation.
6. The power cord is 8 feet (2.43 m) long and may require a grounded extension cord to reach the
nearest electrical outlet.

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REMOVING YOUR NEW STOVE FROM THE PALLET:
Installation
EXHAUST AND FRESH-AIR INTAKE:
INTERIOR MOUNTED EXHAUST BLOWER.
Base to center of flue 10  in. (26.98 cm)
Side to center of flue 12  in. (30.80 cm)
FRESH AIR INTAKE.
Base to center of intake 8  in. (22.22 cm)
Side to center of intake 7  in. (19.68 cm)
Outside fresh-air is mandatory when
installing this unit in airtight homes
and mobile homes. When connecting to an
outside fresh air source, do not use plastic,
combustible pipe. Only 2” ID (inside diameter)
steel, aluminum or copper pipe should be used.
It is recommended, when you are installing a
fresh-air system, to keep the number of bends
in the pipe to a minimum.
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1. Do not terminate the vent in any enclosed or semi-enclosed areas such as a carport, garage, attic, crawlspace,
narrow walkway, closely fenced area, under a sundeck or porch, or any location that can build up a concentration
of fumes such as stairwells, covered breezeway, etc.
2. Vent surfaces can become hot enough to cause burns if touched by children. Non-combustible shielding or
guards may be required.
3. Termination must exhaust above the inlet elevation. It is recommended that at least five feet of vertical pipe be
installed outside when the appliance is vented directly through a wall, to create some natural draft to prevent the
possibility of smoke or odor during appliance shut-down or power failure. This will keep exhaust from causing a
nuisance or hazard from exposing people or shrubs to high temperatures, the safest and preferred venting method
is to extend the vent through the roof vertically.
4. Vent terminal cannot be:
● less than 4 feet (1.2 m) below
● less than 4 feet (1.2 m) horizontally from, and
● less than 1 foot (305 mm) above doors, window openings, or gravity/ventilation air inlet into building.
5. Distance from bottom termination and grade –12” (305 mm) minimum. This is conditional upon the plants and
nature of grade surface. The exhaust gases are hot enough to ignite grass, plants and shrubs located in the vicinity
of termination. The grade surface must not be lawn. Distance from bottom of termination and public walkways is
7 feet (2.1 m) minimum.
6. Distance to combustible materials is 2 feet (610 mm). This includes adjacent buildings, fences, protruding parts
of the structure, roof overhang, plants, shrubs, etc.
7. If the unit is incorrectly vented or the air-to-fuel mixture is out of balance, a slight discoloration of the exterior
of the house might occur. Since these factors are beyond the control of Sherwood Industries Ltd, we grant no
guarantee against such incidents.
IT IS RECOMMENDED THAT YOUR PELLET STOVE BE INSTALLED BY AN AUTHORIZED DEALER/INSTALLER.
NOTE: Measure clearance to the nearest edge of the exhaust hood
A- MINIMUM 4 feet (1.2m) below or beside any door or window that opens.
B- MINIMUM 1 foot (305 mm) above any door or window that opens.
C- MINIMUM 2 feet (610 mm) from any adjacent buildings.
D- MINIMUM 7 feet (2.1 m) above grade when adjacent to public walkways.
(NOTE) Vent may not terminate in a covered walkway or breezeway.
E- MINIMUM 2 feet (610 mm) above plants, grass or other combustible materials.
F- MINIMUM 3 feet (915 mm) from any forced air intake of other appliances.
G- MINIMUM 2 feet (610 mm) below any eave or roof overhangs.
H- MINIMUM 1 foot (305 mm) clearance to a combustible wall.
W- MINIMUM 2 feet (610 mm) above the roof.
Installation
VENT TERMINATION REQUIREMENTS:
C
W
H
B
A
G
AFD
F
E

CLEARANCES TO COMBUSTIBLES:
Maintain these clearances to combustibles.
SIDE WALL TO UNIT 8 INCHES (203 MM)
BACK WALL TO UNIT 3 INCHES ( 76 MM)
ADJACENT WALL 3 INCHES ( 76 MM)
Installation
ALCOVE CLEARANCES:
This unit may be installed in an alcove. Maintain
these clearances to combustibles.
MIN. ALCOVE WIDTH 48 INCHES ( 122 cm)
MIN. ALCOVE HEIGHT 48 INCHES ( 122 cm)
MIN. ALCOVE DEPTH 36 INCHES (91.5 cm)
Install vent at clearances specified by
the vent manufacturer.
This unit MUST BE installed on a noncombustible hearth pad, extending the full width of the unit. The
hearth must extend 6 inches in front of the unit for ember protection.
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