Enviro WINDSOR 50-1578 User Manual
SHERWOOD INDUSTRIES IS AN ENVIRONMENTALLY RESPONSIBLE COMPANY. THIS MANUAL IS PRINTED ON RECYCLED
PLEASE KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
PAPER.
PELLET STOVE
WINDSOR
TECHNICAL MANUAL
Contact your building or fire officials about restrictions and
installation inspection requirements in your area.
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.
50-1578
Table of Contents
Safety Warnings & Recommendations.........................................................................3
Installation...............................................................................................................6
Rating Label Location.....................................................................................6
Deciding Where to Locate your Pellet Appliance................................................6
Removing Pellet Stove From Pallet...................................................................6
Dimensions & Specications............................................................................7
Clearances to Combustibles.............................................................................8
Alcove Clearances...........................................................................................8
Vent Termination Requirements.......................................................................9
Exhaust And Fresh Air Intake Locations..........................................................10
Outside Fresh-Air Connection.........................................................................10
Corner Through Wall Installation....................................................................11
Horizontal Exhaust Through Wall Installation..................................................11
Vertical Rise with Horizontal Termination Installation (Recommended)..............13
Through Concrete Wall With Vertical Rise Installations.....................................13
Inside Vertical Installations............................................................................14
Outside Vertical Installations..........................................................................15
Hearth Mount Installation..............................................................................16
Installation with Exterior Mounted Exhaust Blower...........................................17
Through Wall Vertical Installation With Exhaust Blower....................................19
Thermostat Installation.................................................................................20
Slider/Damper Setting...................................................................................20
Installation..............................................................................................................21
Troubleshooting......................................................................................................22
Wiring Diagram.......................................................................................................25
Parts List - Components...........................................................................................26
Parts List - Cast.......................................................................................................28
Parts Diagram - Components....................................................................................29
Parts Diagram - Steel & Cast....................................................................................30
Installation Data Sheet............................................................................................31
2
Safety Warnings & Recommendations
* This manual is designed for the technician in conjunction with the owner’s manual. *
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. Any unauthorized modification of the appliance or use of replacement parts
not recommended by the manufacturer is prohibited. All national and local regulations and
European Standards shall be complied with when installing this appliance.
Caution: Do not connect to any air distribution duct or system.
Warning: Parts of the appliance, especially the external surfaces, will be hot to touch when
in operation so use due care and the fire gloves provided. Never place wood, paper, furniture,
drapes or other combustible materials within 80cm (31”) of the front of the unit, 20cm (7”) from
each side, and 10cm (4”) from the back of the unit. Do not let children or pets touch it when it is hot.
To prevent the possibility of a fire, ensure that the appliance is properly installed by adhering to the
installation instructions. An ENVIRO dealer will be happy to assist you in obtaining information with
regards to your local building codes and installation restrictions.
FIRE EXTINGUISHER AND SMOKE DETECTION: All homes with a pellet burning stove should have
at least one fire extinguisher in a central location known to all in the household. Smoke detectors should
be installed and maintained in the room containing the stove when installing and operating a pellet
burning appliance. If it sounds the alarm, correct the cause but do not deactivate. You may choose to
relocate the smoke detection devise within the room; DO NOT REMOVE THE SMOKE DETECTOR FROM
THE ROOM.
CHIMNEY OR RUN AWAY FIRE: Call local fire department. Close the draft fully. Extinguish the fire
in the burn pot liner with a cup of water and close the door. Examine the flue pipes, chimney, attic, and
roof of the house, to see if any part has become hot enough to catch fire. If necessary, spray with fire
extinguisher or water from the garden hose. IMPORTANT: Do not operate the stove again until you are
certain the chimney and its lining have not been damaged.
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. When filling fuel hopper, open lid on top of unit, check hopper for foreign objects, empty the
bag into the hopper, DO NOT OVER FILL, and ensure hopper lid closes completely. DO NOT use this
appliance as an incinerator. DO NOT use unsuitable and non recommended fuels, including liquid fuels.
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.
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: “SLIDER/DAMPER SETTING”.
3
Safety Warnings & Recommendations
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 semi-annually or every two tons of pellets. The appliance, flue gas connector
and the chimney flue require regular cleaning. Check them for blockage prior to re-lighting after a
prolonged shut down period.
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 surface, 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.
IMPORTANT: The door and ash drawer cover must be kept closed except during ignition, refueling and
removal of residue material to prevent fume spillage.
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. To clean the glass, use a soft cotton cloth and mild window cleaner, gas or wood stove glass cleaner,
or take a damp paper towel and dip into the fly ash. This is a very mild abrasive and will not damage the
glass.
ELECTRICAL: The use of a surge protected power bar is recommended. The unit must be
grounded. The grounded electrical cord should be connected to a standard 220-240 volts (2.0-2.3 Amps),
50 hertz electrical outlet and also must be accessible. If this power cord should become damaged, a
replacement power cord must be purchased from the manufacturer or a qualified ENVIRO dealer. Be
careful that the electrical cord is not trapped under the appliance and that it is clear of any hot surfaces
or sharp edges. This unit’s maximum power requirement is 525 watts.
OPERATION: The door and ash drawer cover must be kept closed securely when the unit is in operation
to prevent fume spillage and for proper and safe operation of the pellet stove. Also ensure all gaskets on
the door are checked and replaced when necessary.
CAUTION: When operating during adverse weather, if the unit exhibits dramatic changes in combustion
stop using the unit immediately.
INSTALLATION: Contact your local building or fire official to obtain a permit and any information on
installation restrictions and inspection requirements for your area. All local regulations, including those
referring to national and European Standards need to be complied with when installing this appliance.
Be sure to maintain the structural integrity of your home when passing a vent through walls, ceilings, or
roofs. It is recommended that the unit be secured into its position in order to avoid any displacement. This
appliance must be installed on a floor with an adequate load bearing capacity. If an existing construction
doesn’t meet these prerequisite, suitable measures (e.g. load distributing plate) shall be taken to achieve
it.
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.
4
Safety Warnings & Recommendations
FRESH AIR: Outside Fresh Air connection is optional. Fresh Air must be connected to all units installed
in “Air Tight Homes” or where required by local codes.
Consider all large air moving devices when installing your unit and provide room air accordingly. NOTE:
Extractor fans when operating in the same room or space as the appliance, may cause problems. Limited
air for combustion may result in poor performance, smoking and other side effects of poor combustion.
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 airtight. The ash
pan and viewing door must be locked securely for proper and safe operation of the pellet stove.
Do 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 slider damper located on the left side of the stove.
Minor soot or creosote may accumulate when the stove is operated under incorrect conditions such as an
extremely rich burn (black tipped, lazy orange flames).
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
5
Installation
Hold-down brackets.
RATING LABEL LOCATION:
The rating label is located on the back of the hopper.
DECIDING WHERE TO LOCATE YOUR PELLET APPLIANCE:
1. Check clearances to combustibles (see INSTALLATION - CLEARANCES TO COMBUSTIBLES and INSTALLATION - ALCOVE
CLEARANCES).
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” (15 cm) diameter, or over 28 inches² (180
cm²) 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.
REMOVING PELLET STOVE FROM PALLET:
Remove screws from the two (2) hold-down
brackets that secure the Windsor to the pallet.
Lift the brackets up to unhook from the chassis.
Figure 1: Removing Freestanding Stove From the Pallet.
6
271/8"
(689mm)
253/4"
(653mm)
257/8"
(659mm)
153/8"
(390mm)
141/4"
(360mm)
241/8"
(614mm)
DIMENSIONS & SPECIFICATIONS:
Installation
Figure 2: Windsor Dimensions.
Table 1: Windsor Specifications.
Classification Testing Standard Description
Class I IP-20 EN14785:2006 Residential Wood Pellet Heater
Voltage Current Frequency
220 - 240 V 2.0 - 2.3 Amps 50 Hz
Maximum Power Requirement Fuel type Calorific value of Pellet used
525W (1793 BTU/hr) wood pellets - 6mm (”) dia. ≥ 5.10 kWh/kg (≥ 8000 BTU/lb)
Maximum Flue Gas Temperature Mean Flue Gas Temperature Mean Flue Gas Temperature (Reduced)
230°C (446°F) 180.5°C (357°F) 128.5°C (263°F)
Nominal Heat Output CO emissions from Combustion Energy Efficiency
6.9 KWh (23544 BTU) 0.035% 82.6%
Reduced Heat Output CO emissions from Combustion (Reduced Output) Energy Efficiency (Reduced Output)
2.3 KWh (7848 BTU) 0.052% 77.3%
CO2 at Nominal Output Nominal Fuel Consumption Rate Unit with Full Hopper
8.16% 1.65 Kg/hr (3.64 lb/hr)* ~ 151kg (333lb)
CO2 at Reduced Output Fuel Consumption Rate (Reduced Output) Hopper Capacity
4.142% 0.59 Kg/hr (1.30 lb/hr)* ~ 20kg (45lb)
*Note: Consumption will vary with the type of fuel used.
7
Minimum Width
1220mm (48")
Minimum Height
1220mm (48")
Maximum Depth
915mm (36")
Back wall
Side wall
Adjacent
wall
100mm
(4")
100mm (4")
200mm
(77/8 inches)
150mm
(6")
Floor Protection
Installation
CLEARANCES TO COMBUSTIBLES:
These dimensions are minimum clearances but it
is recommended that you ensure sufficient room
for serving, routine cleaning and maintenance.
Side wall to unit 200mm (7 inches)
Back wall to unit 100mm (4 inches)
Corner to unit 100mm (4 inches)
In Front of unit 800mm (31” inches)
This pellet stove requires floor protection. The
floor protection must be non-combustible,
extending beneath the stove the full width and
depth of the unit including 150mm (6“) in front
for ember protection.
Hearth Pad Size:
Width: 650 mm (25 ”)
Depth: 815mm (32 ”)
ALCOVE CLEARANCES:
This unit may be installed in an alcove. Maintain the
clearances to combustibles shown in Figure 4.
Minimum Alcove width 1220mm (48 inches)
Minimum Alcove height 1220mm (48 inches)
Maximum Alcove depth 915mm (36 inches)
Install vent at clearances specified by
the vent manufacturer.
Figure 3: Minimum Clearances to Combustibles for
Freestanding Windsor.
8
Figure 4: Alcove Clearances.
Installation
Air Supply Inlet
Gas Meter
Restriction Zone
(Termination not allowed)
Termination Cap
G
G
Opens
Opens
Opens
D
F
B
B
A
I
H
K
G
G
L
C
E
VENT TERMINATION REQUIREMENTS:
IT IS RECOMMENDED THAT YOUR PELLET STOVE BE INSTALLED BY AN AUTHORIZED DEALER/INSTALLER.
Table 2: Use in conjunction with Figure 5 for allowable exterior vent termination locations.
Letter Minimum Clearance Description
A 24 in (61 cm) Above grass, top of plants, wood, or any other combustible materials.
B 48 in (122 cm) Beside/below any door or window that may be opened. (18” (46 cm) if outside
fresh air install.)
C 12 in (30 cm) Above any door or window that may be opened. (9” (23 cm) if outside fresh air
install.)
D 24 in (61 cm) To any adjacent building, fences and protruding parts of the structure.
E 24 in (61 cm) Below any eave or roof overhang
F 12 in (30 cm) To outside corner.
G 12 in (30 cm) To inside corner, combustible wall (vertical and horizontal terminations).
H 3 ft (91 cm) within a height
of 15 ft (4.5 m) above the
meter/regulator assembly
I 3 ft (91 cm) From any forced air intake of other appliance
J 12 in (30 cm) Clearance to non-mechanical air supply inlet to building, or the combustion air
K 24 in (61 cm) Clearance above roof line for vertical terminations.
L 7 ft (2.13 m) Clearance above paved sidewalk or paved driveway located on public property.
To each side of center line extended above natural gas or propane meter/
regulator assembly or mechanical vent.
inlet to any appliance.
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
Figure 5: Use in conjunction with Table 2 for allowable exterior vent termination
locations.
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. In any case, the safest and preferred
venting method is to extend the vent through the roof vertically.
4. Distance from the bottom of the termination and grade is 12” (30 cm) 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.
5. 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.
NOTE: Venting terminals shall not be recessed into walls or siding.
9
10
1
/2”
(265 mm)
8
1
/2”
(216 mm)
12
7
/8”
(326 mm)
8
3
/8”
(214 mm)
4
3
/8”
(112 mm)
Installation
EXHAUST AND FRESH AIR INTAKE LOCATIONS:
INSTALL VENT AT CLEARANCES SPECIFIED
BY THE VENTING MANUFACTURER
10
Figure 6: Inlet and Outlet Location.
EXHAUST
Base of unit to center of flue 270 mm (10 ”)
Side of unit to center of flue 308 mm (12 ”)
Center of unit to center of flue 19 mm (”)
FRESH AIR INTAKE.
Base of unit to center of intake 222 mm (8 ”)
Side of unit to center of intake 197 mm (7 ”)
Center of unit to center of flue 130 mm (5 ”)
OUTSIDE FRESH-AIR CONNECTION:
This Heater must have adequate air for proper combustion in the room that it is installed.
A Fresh-air intake is strongly recommended for all
installations. Failure to install intake air may result in improper
combustion as well as the unit smoking during power failures.
The inlet to the intake must be below and a minimum of 305mm
(12”) away from the unit exhaust outlet.
Outside fresh air is mandatory when installing this unit
in airtight homes.
When connecting to an outside fresh air source, do not use
plastic or combustible pipe. A 50mm minimum (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.
Figure 7: Outside Air Connection.
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