Enviro P3 Owner's Manual
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1
Table of Contents
Introduction...................................................................................................................3
Important Safety Data........................................................................................................3
Safety Warnings And Recommendations..............................................................................4
Rating Label Location.........................................................................................................6
Pellet Quality......................................................................................................................6
Installation.......................................................................................................................7
Deciding Where to Locate the Appliance............................................................................7
Unpacking and Removing Pellet Stove From Pallet..............................................................7
Clearances to Combustibles................................................................................................9
Alcove Clearances...............................................................................................................9
Vent Termination Requirements.........................................................................................10
Outside Fresh Air Connection...........................................................................................11
Exhaust and Intake Locations...........................................................................................11
Mobile Home Installation..................................................................................................12
Corner Through Wall Installation.......................................................................................12
Horizontal Exhaust Through Wall Installation....................................................................13
Through Wall Vertical Rise Horizontal Termination - Freestanding.......................................14
Inside Vertical Installations................................................................................................15
Outside Vertical Installations..............................................................................................15
Hearth Mount Installation................................................................................................16
Exterior Mounted Exhaust Blower....................................................................................17
Through Wall with Exterior Blower Kit Installation - Horizontal Termination.........................18
Through Wall with Exterior Blower Kit Installation - Vertical Termination.........................19
Thermostat Installation.....................................................................................................19
Specifications.......................................................................................................................20
Dimensions and Specifications...........................................................................................20
Operating Instructions..................................................................................................................21
Control Board Functions....................................................................................................21
Automatic Safety Features of Your Pellet Stove...................................................................21
Operating Your Pellet Stove...............................................................................................22
Turning Your Pellet Stove Off..............................................................................................22
Damper Set-Up.................................................................................................................22
Guidelines For Fine-Tuning For Fuel Quality........................................................................23
Routine Cleaning and Maintenance................................................................................................24
Troubleshooting.................................................................................................................28
Wiring Diagram...........................................................................................................................31
Parts List.....................................................................................................................................32
Parts Diagram..............................................................................................................................34
Rating Label................................................................................................................................36
Warranty..................................................................................................................37
Installation Data Sheet...............................................................................................................38
2
Introduction
IMPORTANT SAFETY DATA:
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.
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.
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.
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.
Operating with door open could cause a fire inside the house as well as the release of carbon monoxide
into the living space.
Carbon monoxide is a colorless and odorless gas, to prevent it from poisoning you or your family know the
symptoms of carbon monoxide poisoning: headache, dizziness, weakness, sleepiness, nausea, vomiting,
and confusion. Carbon monoxide reduces the blood’s ability to carry oxygen. Low blood oxygen levels can
result in loss of consciousness and death.
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.
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. Make sure that the structural integrity of the home is maintained and all
construction meets local building 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.
Soot or creosote may accumulate when the stove is operated under incorrect conditions such as an
extremely rich burn (black tipped, lazy orange flames).
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.
FRESH AIR: Outside Fresh Air connection is optional. Fresh Air must be connected to all units installed in
Mobile Homes and Air Tight Homes (R2000) or where required by local codes.
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.
3
Introduction
SAFETY WARNINGS AND RECOMMENDATIONS:
Caution: Do not connect to any air distribution duct or system. Do not burn garbage or flammable fluids
such as gasoline, naphtha or engine oil. Unit hot while in operation. Keep children, clothing and furniture
away. Contact may cause skin burns.
Warning: Parts of the appliance, especially the external surfaces, will be hot to touch when in operation
and due care will need to be taken. Never place wood, paper, furniture, drapes or other combustible
materials within 80cm (31½”) of the front of the unit, 20cm (7⅞”) 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 (or dial 911). Close the draft fully. 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 CORD WOOD IS PROHIBITED BY LAW.
SOOT and FLYASH: Formation and Need for Removal - The products of combustion will contain small
particles of flyash. The flyash will collect in the exhaust venting system and restrict the flow of flue gases.
Incomplete combustion, such as occurs during startup, shutdown, or incorrect operation of the room
heater will lead to some soot formation which will collect in the exhaust venting system. The exhaust
venting system should be inspected at least once every year to determine if cleaning is necessary.
CREOSOTE: When wood is slowly burned it produces tar and other organic vapours and these combine
with expelled moisture to form creosote. The creosote vapours condense in the relatively cool chimney
flue associated with a slow burning fire. As a result, creosote residue accumulates on the flue lining.
When ignited this creosote can result in an extremely hot chimney fire.
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.
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
4
Introduction
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 unit must be grounded.
The grounded electrical cord should be connected to a standard 110-120 volts, nominal average 2.0 Amps (4.1
Amps peak), 60 hertz electrical outlet and also must be accessible. Ensure the polarity to the outlet the unit will
be plugged into is correct as incorrect polarity can affect the unit’s operation. 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 184 watts (600 watts peak).
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.
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 lace unburned fuel or new 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. It is recommended that the unit be secured into its position in order to avoid any displacement.
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: Outside Fresh Air connection is optional. Must be connected to all units installed in Mobile and “Air
Tight Homes” (R2000) or where required by local codes. Consider all large air moving devices when installing your
unit and provide fresh air accordingly. Limited air for combustion may result in poor performance, smoking and
other side effects of poor combustion.
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
Introduction
RATING LABEL LOCATION:
The rating label is located on the back of the ash pan access cover.
PELLET QUALITY:
Pellet quality is important, please read the following:
Your Enviro pellet stove has been designed to burn wood pellets only. Do not use any other
type of fuel, as this will void any warranties stated in this manual.
The performance of your pellet stove is greatly affected by the type and quality of wood
pellets being burned. As the heat output of various quality wood pellets differs, so will the
performance and heat output of the pellet stove.
CAUTION: It is important to select and use only pellets that are dry and free of dirt or any impurities
such as high salt content. Dirty fuel will adversely affect the operation and performance of the unit
and will void the warranty. Pellet Fuel Industries (P. F. I.) has established standards for wood pellet
manufacturers. We recommend the use of pellets that meet or exceed these standards. Ask your dealer
for a recommended pellet type.
P. F. I. PELLET STANDARDS:
Fines (fine particles)......1% maximum through a ⅛” screen
Bulk Density..................40 pound per cubic foot minimum
Size..............................¼” to 5/16” diameter ½ – 1½” long maximum
Ash Content..................1% maximum (Premium grade)
..................3% maximum (Standard grade)
Moisture Content...........8% maximum
Heat Content.................approximately 8200 BTU per pound minimum
ASH: The ash content of the fuel and operation of your stove will directly determine the frequency of
cleaning. The use of high ash fuels may result in the stove needing to be cleaned daily. A low ash fuel
may allow longer intervals between cleaning.
CLINKERING: [clinkers are silica (sand) or other impurities in the fuel that will form a hard mass during
the burning process]. This hard mass will block the air flow through the Burn Pot Liner and affect the
performance of the stove. Any fuel, even approved types, may tend to clinker. Check the Burn-Pot Liner
daily to ensure that the holes are not blocked with clinkers. If they become blocked, remove the liner
(when the unit is cold) and clean/scrape the clinkers out. Clean the holes with a small pointed object if
required. Refer to the section Routine Cleaning and Maintenance.
PELLET FEED RATES: Due to different fuel densities and sizes, pellet feed rates may vary. This may
require an adjustment to the slider damper setting or to the auger feed trim setting on low.
Since Sherwood Industries Ltd. has no control over the quality of pellets that you use, we assume no
liability for your choice in wood pellets.
Store pellets in a dry area at least 36” (1 m) away from the pellet stove.
6
Installation
Remove
DECIDING WHERE TO LOCATE YOUR PELLET APPLIANCE:
1. Check the “Clearances to Combustibles” section for proper spacing.
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 wood stove 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.
7. Stove must sit on a non-combustible pad that extends six inches in front of the door or
the included hearth pad (50-2929).
UNPACKING AND REMOVING PELLET STOVE FROM PALLET
1. Start by removing the crating and unit bag, you will need a pry bar and hammer to remove the crating. A
sawzall can be used to cut the staples as well.
2. Loosen six screws securing Back Grill, once loose slide downwards and remove.
3. Use a 5/16” wrench or socket to remove the shipping bolts holding the unit to the pallet.
Figure 1: Shipping Bolt Removal
7
Installation
ASSEMBLY
1. First install the hearth pad if you plan on using it. You
may have to unscrew feet to raise unit up. Tilt the unit
so it is balancing on the back feet, slide the hearth pad
under the unit while making sure the side mounting
tabs are on the outside of the base flange. once holes
are aligned secure with provided T-20 thread rolling
screws. See Figure 2.
Figure 3: Cabinet Side Install
3. Now Install Ash Shelf and Louvers. Ash Shelf is
mounted using two T-20 thread roller screws. The
Louvers are installed by inserting into slots cut into
louver mounting brackets located above the door.
If properly aligned the louvers should catch on the
bracket tabs and sit at a 15 degree angle.
Figure 2: Hearth Pad Install
2. Next install the Cabinet Sides. There are six screws
for mounting each cabinet side. Start by installing
screws at front top of the panels, Do not fully tighten
screws. Now get the back top screws started. Now
install the rest of the screws and tighten them down.
See Figure 3.
8
Figure 4: Louver and Ash Shelf Install
Installation
36in
(91.5 cm)
48in
(122 cm)
30in
(76 cm)
A
E
D
C
B
CLEARANCES TO COMBUSTIBLES:
IMPORTANT: The P3 must have a Hearth Pad when installing the unit on a combustible floor. The included
hearth pad meet all the requirement of a proper hearth pad. If you do not use the included hearth pad a certified
non combustible Hearth Pad with a minimum R Value of at least 0.84 must be placed underneath the unit and
extend six inches in front of the unit measured from the glass. If the P3 is installed on carpet the use of a solid non
combustible Hearth Pad must be used under leveling legs.
These dimensions are minimum clearances but it is
recommended that you ensure sufficient room for servicing,
routine cleaning and maintenance.
A. Side wall to unit 8 inches (20 cm)
B. Back wall to unit 5.5 inches (14 cm)
C. Back wall to Chimney Connector 4in inches (10cm)
D. Corner to unit 3 inches (7.5 cm)
E. Glass to Hearth Pad 6 inches (15 cm)
Figure 5: Minimum Install Clearances
ALCOVE CLEARANCES:
The unit may be installed in an alcove if desired.
These minimum clearances to combustibles must
be maintained at all times. Be sure to leave room
for servicing, routine cleaning, and maintenance.
These are inside dimensions.
Minimum Alcove Width 36 inches (91.5 cm)
Minimum Alcove Height 48 inches (122 cm)
Minimum Alcove Depth 30 inches (76 cm)
Figure 6: Minimum Alcove Clearances
9
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 1: Use in conjunction with Figure 6 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 installed.)
C 12 in (30 cm) Above any door or window that may be opened. (9” (23 cm) if outside fresh air
installed.)
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.
. Do not terminate the vent in any
1
enclosed or semi-enclosed areas
such as a carport, garage, attic,
crawlspace, narrow walkway,
closely fenced area, under a sun
deck 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. Noncombustible shielding or guards
Figure 7: Use in conjunction with Table 1 for allowable exterior vent termination locations.
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.
10
Installation
2" ID
(51 mm)
Optional
Elbow
Outside
Wall
10.5in
(26.5 cm)
6.625in
(17 cm)
2.125 in
(5.5 cm)
OUTSIDE FRESH AIR CONNECTION:
Outside fresh air is mandatory when installing this
unit in airtight homes (R2000) and mobile homes.
A Fresh-air intake is strongly recommended for all
installations. Failure to install a fresh air intake may result
in improper combustion as well as the unit smoking during
power failures.
When connecting to an outside fresh air source, do not use
plastic or combustible pipe. A 2” minimum (51 mm) 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.
EXHAUST AND INTAKE LOCATIONS:
Figure 8: Outside Air Connection.
EXHAUST
Base of unit to center of flue 10.5 in (265 mm)
Center of unit to center of flue 0 in (0 mm)
[at center of unit]
FRESH AIR INTAKE
Base of unit to center of intake 6.625 in (170 mm)
Center of unit to center of intake 2.125 in (53 mm)
IMPORTANT: When attaching the exhaust venting
system to the unit or when joining vent sections three
screw must be used at each joint. If vented horizontally,
joints shall be made gas tight with aluminum foil duct
tape.
Figure 9: P3 Inlet and Outlet Location.
11
Installation
ENVIRO P3
1
/4” Lag Bolts
Securely Fastened
Ground Wire Directly
to Metal Chassis
Hearth Pad
Flooring
Steel Frame
3" (75mm)
3"
(75mm)
Wall thimble
manufactured
by pellet vent
manufacturer.
MOBILE HOME INSTALLATION:
● Secure the heater to the floor using the two
holes in the pedestal.
● Ensure the unit is electrically grounded to
the chassis of your home (permanently).
● Do not install in a room people sleep in.
● Outside fresh air is mandatory. Secure
outside air connections directly to fresh air
intake pipe and secure with three screws
evenly spaced.
CAUTION: THE STRUCTURAL
INTEGRITY OF THE MANUFACTURED
HOME FLOOR, WALL AND CEILING/
ROOF MUST BE MAINTAINED.
CORNER THROUGH WALL INSTALLATION:
Minimum clearances must be maintained
for a corner installation as shown in
figure 11.
Figure 10: Mobile home installation.
12
Figure 11: Corner Installation.
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