Enviro 50-1573 User manual

PELLET STOVE
Evolution
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
OWNER’S MANUAL

50-1573

Table of Contents
2
Introduction..............................................................................................................3
Rating Label Location......................................................................................3
Pellet Quality..................................................................................................3
Safety Warnings & Recommendations.........................................................................4
Specifications............................................................................................................6
Dimensions & Specifications............................................................................6
Operating Instructions...............................................................................................7
Control Board Functions..................................................................................7
Automatic Safety Features of Your Pellet Stove.................................................7
Operating Your Pellet Stove.............................................................................8
Operating Instructions.....................................................................................9
Turning Your Pellet Stove Off...........................................................................9
Slider/Damper Set-Up.....................................................................................9
Routine Cleaning and Maintenance............................................................................10
Installation Data Sheet.............................................................................................13

3
Introduction
* This manual is designed for the home owner in conjunction with the technical manual. *
RATING LABEL LOCATION:
The rating label is located on the inside of the ash pan cover.
PELLET QUALITY:
Pellet quality is important, please read the following:
Your Enviro pellet stove has been designed to burn 6mm dia wood pellets only. DO NOT
use this appliance as an incinerator. DO NOT use unsuitable and non recommended fuels,
including liquid fuels 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. Ask your dealer for a recommended pellet type.
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 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.
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.
Store pellets at least 36” (1 m) away from the pellet stove.
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.
IMPORTANT: This unit must be connectect to an 80mm stainless steel vent pipe exhausting outside the
building.

4
Safety Warnings & Recommendations
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 operating this appliance.
Caution: Do not connect to any air distribution duct or system.
Warning: 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. 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.
OPERATION: The door and ash drawer must be kept closed 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.
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: “SLIDER/DAMPER SETTING”.
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 thoroughly cooled.

5
Safety Warnings & Recommendations
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.
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.
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: Contact your local building or fire official to obtain a permit and any information on
installation restrictions and inspection requirements for your area.
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) must 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.
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

6
Specifications
DIMENSIONS & SPECIFICATIONS:
IMPORTANT: When not installing
the optional Hearth Pad on the
unit, the minimum requirements
for protection on combustibles
floors are a width of 620mm
(24”) & depth of 670mm
(26”) under the unit.
22 1/4" (565 mm)
33 1/16"
(840 mm)
21 1/4"
(539 mm)
513/16"
(147 mm)
26 3/8" (670 mm)
27 7/8"
(708 mm)
24 3/8" (619 mm)
Figure 1: Dimensions of Evolution.
Table 1: Evolution Specifications.
Classification Testing Standard Description
Class I IP-20 EN14785:2006/EN13240:2001/A2:2004 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 (≥ 7900 BTU/lb)
Maximum Flue Gas Temperature Mean Flue Gas Temperature Mean Flue Gas Temperature (Reduced)
200°C (392°F) 192°C (378°F) 143°C (289°F)
Nominal Heat Output CO emissions from Combustion Energy Efficiency
7.6 KWh (25932 BTU) 0.032% 84%
Reduced Heat Output CO emissions from Combustion (Reduced Output) Energy Efficiency (Reduced Output)
3.2 KWh (10919 BTU) 0.045% 75%
CO2 at Nominal Output Nominal Fuel Consumption Rate Unit with Full Hopper
8.35% 1.78 Kg/hr (3.95 lb/hr)* ~ 140kg (310lb)
CO2 at Reduced Output Fuel Consumption Rate (Reduced Output) Hopper Capacity
3.45% 0.83 Kg/hr (1.85 lb/hr)* ~ 40kg (90lb)
*Note: Consumption will vary with the type of fuel used.
Unit Dimensions
Height: 840 mm (33 1/16”)
Width: 565 mm (22 ”)
Depth: 539 mm (21 ”)
Hearth Pad:
Width: 619 mm (24 ”)
Depth: 708 mm (27 ”)

7
Operating Instructions
CONTROL BOARD FUNCTIONS:
1. AUGER TRIM: Used to change feed rates on LOW ONLY for poorer quality fuels. Push the Auger
Trim button until the number 1 and 5 lights appear on the Heat Level Indicator. This will increase the
feed rate to 4 seconds ON time Auger pulse. This is done only on LOW to allow the burning of poor
quality fuels. Push the button until the number 1 and 4 lights appear, this will reduce the Auger On
time to 2 second. This setting is for high-grade fuel only. Push the button until just the number 1
light is on, this is for a three (3) second on time (standard setting).
  


 

 
1
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3
4
5
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7
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9
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

 

 
2. CONVECTION BLOWER CONTROL: Used to
turn the convection blower ON/OFF. Leave the
convection blower ON for peak efficiency
3. AUGER PULSE LIGHT: This light will flash in
conjunction with the auger.
4. MANUAL AUGER FEED: This button can be
used to “prime the auger system”. This button
will turn off after 60 seconds and then must be
released and pressed again.
5. SYSTEM LIGHT: Responsible for signaling the
state of the control board. When the light is
flashing, the stove is in an automatic mode. When
the light is solid, the Heat Level Setting can be
altered.
6. ON/OFF BUTTON: Used to turn the unit ON and
OFF manually.
7. HEAT LEVEL ADJUSTMENT: When pressed, will
change the heat setting of the unit from low to
high.
8. HEAT OUTPUT INDICATOR: Shows the present
heat output setting.
9. THERMOSTAT SWITCH: Sets the unit’s control
mode; AUTO/OFF or HIGH/LOW (when using a
Thermostat or Timer) or MANUAL.
Figure 2: Circuit Board Control Panel Decal
AUTOMATIC SAFETY FEATURES OF YOUR PELLET STOVE:
A. EXHAUST TEMPERATURE SWITCH: The stove will shut off when the fire goes out and the exhaust
temperature drops below 49°C (120°F).
B. HIGH LIMIT SAFETY SWITCH: If the temperature on the hopper reaches 93°C (200°F), the auger will
automatically stop and the stove will shut down when the exhaust temperature cools. If this happens,
call your local dealer to reset the 93°C (200°F) high limit switch. ALSO FIND THE REASONS WHY
THE UNIT OVERHEATED.
C. VACUUM SWITCH: If the combustion fan fails or the exhaust vent becomes blocked this switch will
stop the auger feed motor and the fire will go out.

OPERATING YOUR PELLET STOVE:
DO NOT OPERATE THE UNIT WITH THE DOOR OR ASH PAN OPEN. Keep hopper lid closed
except during re-fuelling.
CAUTION: When operating during adverse weather, such as high winds or freezing rain, if the unit
exhibits dramatic changes in combustion stop using the unit immediately. Watch for blocked exhaust
outlet.
PRE-BURN CHECK: The burn pot liner holes must be clear and the liner installed properly against the
ignitor tube. Check the hopper for enough pellets to start the unit.
Figure 3: Thermostat Switch in
MANUAL position.
Figure 4: Thermostat Switch in
HIGH/LOW position.
  


 

 
1
2
3
4
5
6
7
8
9
  


 

 
  


 

 
1
2
3
4
5
6
7
8
9
  


 

 
Figure 5: Thermostat Switch in
AUTO/OFF position.
  


 

 
1
2
3
4
5
6
7
8
9
  


 

 
Note: The thermostat mode can be changed during normal
operation.
MANUAL MODE:
All control of circuit board function is adjusted at the circuit board.
To START: Press the ON / OFF button. The stove will turn on. The
system light will flash. The Auger Light will flash with each pulse of the
auger (the Auger Feed Rate is pre-programmed during start-up). The
Heat Level Indicator will show the Heat Level that the stove will run at after start-up.
If this is the first time the unit has been started or the unit has run out of fuel, the auger will need to
be primed. Press the Manual Auger Feed button until fuel starts to drop into the Burn Pot Liner (see
“OPERATING INSTRUCTIONS; CONTROL BOARD FUNCTIONS”).
When a fire has been established, the System Light will turn solid and the convection blower will turn on
(after approximately 10 - 15 minutes), and the Auger Light will continue to flash to the corresponding
Heat Level setting.
To OPERATE: Press the Heat Level button to change the desired Heat Level Output setting.
The speed of the convection blower is controlled by the setting of the heat level. This blower can be
turned OFF by depressing the convection blower control button. For the best efficiency, the convection
blower should be left on at all times.
When operating on LOW HEAT LEVEL, the feed rate can be adjusted, using the auger trim, for different
quality fuels. These settings can be used if the fire keeps going out on low (poor quality fuel). Or if the
low setting is too hot for the room (see “OPERATING INSTRUCTIONS; CONTROL BOARD FUNCTIONS”).
HIGH/LOW MODE: (Requires a Thermostat or Timer)
INITIAL START-UP: See MANUAL MODE above.
OPERATION: When the thermostat calls for heat (contacts are
closed) the stove settings are adjustable as per Manual Mode. When
the thermostat contacts open, the HEAT LEVEL and Fans will drop
down to the LOW setting until the thermostat contacts close again.
*The LOW heat setting can be adjusted for different fuel qualities
(see “OPERATING INSTRUCTIONS - CONTROL BOARD FUNCTIONS”). The stove will
come back to the previous HEAT LEVEL setting when the thermostat
contacts close again.
AUTO/OFF MODE: (Requires a Thermostat or Timer)
INITIAL START-UP: See MANUAL MODE above.
OPERATION: When the thermostat contacts close, the unit will light
automatically. Once up to temperature, the stove operates the same as
Operating Instructions
8

9
active flame with no black tips then the air is set for proper
operation, refer to Figure 7.
The combustion exhaust blower is a variable speed blower
controlled by the heat output button. This blower will decrease
the vacuum pressure inside the stove and as the heat output
button is turned down.
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).
in MANUAL. When the thermostat contacts open, the stove’s HEAT LEVEL and Fans will drop down to the
LOW setting for 30 minutes. If the thermostat contacts close within the 30 minutes, the HEAT LEVEL will
return to the previous MANUAL setting. If the thermostat contacts remain open, the stove automatically
begins its shutdown routine. The stove will re-light when the thermostat contacts close again.
TURNING YOUR PELLET STOVE OFF:
• MANUAL and HI / LOW mode: To turn the unit OFF, simply press the ON / OFF button. This will stop
the feed of pellets. The blowers will continue to operate and cool the stove down. When cool enough,
the stove will turn off.
• AUTO / OFF mode: To turn the unit OFF, turn the Thermostat down or Timer off.
DO NOT turn unit off during start-up or unplug unit while operating; this may lead
to smoke escaping from the stove.
SLIDER/DAMPER SET-UP:
THE SLIDER / DAMPER MUST BE SET AT TIME OF INSTALLATION. A Qualified Service Technician
or Installer must set the Slider Damper.
If the fire should happen to go out and the heat output indicator has been set on the lowest setting, the
Slider Damper should be pushed in slightly, decreasing the air in the firebox.
If, after long periods of burning, the fire builds up and overflows the burn pot or there is a build up of
Air Intake Box
Exhaust Channel
Slider Damper
Exhaust Blower
Operating Instructions
Figure 6: Slider/Damper Plate in Unit.
clinkers, this would be a sign that the pellet quality
is poor, this requires more primary air, 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 understand the characteristics of
the fire.
• A tall, lazy flame with dark orange tips requires
more air – Open slider (pull out) slightly.
• A short, brisk flame, like a blowtorch, has too
much air – Close slider (push in) slightly.
• If the flame is in the middle of these two
characteristics with a bright yellow/orange,
Figure 7: Efficient Flame.

DOOR GLASS CLEANING (2-3 days)
Cleaning of the glass must only be done when stove is cold. Open the door by lifting the handle. The glass
can be cleaned by wiping down the outside and inside of the glass with a dry soft cloth.
2-3 Days / Weekly Bi-annually or 2 Tons of Fuel
Burn Pot and Liner Exhaust Vent
Heat Exchanger Tubes Fresh Air Intake Tube
Ash Pan Blower Mechanisms
Door Glass Heat Exchanger Tubes
Inside Firebox Behind Firebox Liners
Ash Pan and Door Gaskets All Hinges
Door Latch Post Season Clean-up
TOOLS REQUIRED TO CLEAN UNIT:
Torx T-20 Screwdriver, 5/16” wrench or socket, Ash Pan Tool, Brush,
Soft Cloth, and Vacuum with fine filter bag
Routine Cleaning and Maintenance
The following list of components should be inspected and maintained routinely to ensure that the
appliance is operating at its optimum and giving you excellent heat value. 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.
Burn Pot
Liner
Ignitor
Air Intake
Tube
Burn
Pot
BURNER POT AND LINER (2-3 days)
This is the ‘pot’ where the pellets are burned. Every two to three days (when the unit is cold), remove
the burn-pot liner from the stove. Using a metal scrapper, remove material that has accumulated or
is clogging the liner’s holes. To remove the burn pot and burn pot liner, open the door using the door
handle provided (located on the right-hand side of the stove). Swing the door open. Lift the liner from
the burn pot. Lift the burn pot from the firebox by gently lifting up the front of the burn pot, then sliding
the assembly from the air intake tube and the ignitor.
Then dispose of the scrapped ashes from the liner and from inside the burn-pot. Place the burn-pot back
into the stove, making sure that the pipes are properly inserted into the burn pot. Place the liner back
into the burn-pot, making sure that the ignitor hole in the liner is aligned with the ignitor tube. Pushing
the liner up against the ignitor tube.
If, after long periods of burning, the fire continually builds up and overflows the burn pot or there is a
Figure 8: Evolution Burn pot and
Liner.
build up of clinkers, this is an indication that the pellet fuel quality is
poor or the stove may need cleaning. Check the stove for ash build
up (clean if required) and adjust the slider / damper to produce the
proper clean combustion.
HEAT EXCHANGER TUBES (2-3 days)
A handle is located in the center of the stove just above the door
(shown in Figure 9). Put gloves on and pull it up and down a few
times (ONLY WHEN THE UNIT IS COLD) in order to clean away
any fly ash that may have collected on the heat exchanger tubes.
As different types of pellets produce different amounts of ash,
cleaning of the tubes should be done on a regular basis to enable
the unit to run efficiently.
Figure 9: Evolution Heat Exchange.
10

11
Routine Cleaning and Maintenance
If the glass has build up that can not be removed with only the cloth, clean the glass using paper towel
and a gas appliance glass cleaner, this may be purchased through most dealers. If a gas appliance glass
cleaner is not available, use a damp paper towel dipped in y ash to clean the glass. After the glass has
been cleaned use the dry soft cloth to wiping down the outside and inside of the glass.
ASH PAN AND DOOR GASKETS (weekly)
After extended use the gasketing may come loose. To repair this, glue the gasketing on using high-
temperature fiberglass gasket glue available from your local dealer. This is important to maintain an
airtight assembly.
Figure 10: Pulling Ash Pan Out.
PELLET FUEL IN ASH PAN.
EXHAUST PASSAGES (biannually)
Removal of the firebox backing for biannual cleaning
• Open the door by lifting the handle, remove the
burn pot and burn pot liner.
• Lubricate all screws with penetrating oil.
• Remove the four (4) screws that hold the side panels
in place.
• With the tip of a flat screwdriver, gently lift up the
side panels and remove the side panels.
• Pull the center panel out.
• Vacuum thoroughly.
Installation of firebox backing:
• Insert center panel.
• Place the side panels back into the firebox and re-
install the two (2) screws on each side.
• Replace the glass door and secure.
• Clean thoroughly.
ASH PAN (weekly)
IMPORTANT: The unit must be OFF while the ash pan
is removed. Sweep the ashes from the firebox through
the grate into the ash pan.
The ash pan is located, in the pedestal, and has a
latching mechanism to secure it. To remove the ash
pan open the cover from the right hand side, unlock
the latch on the pedestal cover and pull the pan out. If
the ash pan is hot and/or dirty, gloves should be worn
to remove it. Pull the ash pan out. When the ash pan
is out of the unit lift the ash pan by the front and back
handles and carry the ash pan to where the ashes will
be emptied.
Vacuum inside ash box
Heat exchanger tubes
cleaner handle.
Figure 11: Evolution Open.
Dump the ashes into a metal container stored away from combustibles. Monitor the ash level every week.
Remember that different pellet fuels will have different ash contents. Ash content is a good indication of
fuel efficiency and quality. Refer to “SAFETY WARNINGS AND RECOMMENDATIONS” for disposal of ashes. Vacuum
the inside of the ash pan compartment inside the pedestal including the hole at the top back of the
compartment. Replace the ash pan and close pedestal door. DO NOT PLACE UNBURNED OR RAW

Routine Cleaning and Maintenance
EXHAUST VENT (annually)
Check vent for blockage prior to lighting after a prolonged shutdown period.
This vent should be cleaned every year or after two tons of pellets. We recommend contacting your
dealer for professional cleaning. For basic cleaning the vent pipe, tap lightly on the pipe to dislodge any
loose ash. Open the bottom of the “T” to dump the ash, then vacuum as much of the ash out of the vent
pipe as possible.
FRESH AIR INTAKE (annually)
Inspect periodically to be sure that it is not clogged with any foreign materials.
BLOWER MECHANISMS (annually)
Unplug the stove then open the right and left side panels to access the two blowers. Vacuum all dust
from motors. Both motors have sealed bearings, DO NOT lubricate these motors. Check gaskets and
replace if needed.
POST SEASON CLEAN-UP
Once you are finished using the pellet appliance for the season, unplug the stove for added electrical
protection. It is very important that the stove be cleaned and serviced as stated above.
CLEANING PLATED SURFACES
Please clean all fingerprints off of all plated parts, with denatured alcohol on a soft cloth, before firing the
unit each time. Fingerprints, etc. can become permanently etched into the plating if not removed before
operating the pellet heater.
BRICK PANEL
The paint on the steel brick panel may peel. This is due to extreme conditions applied to the paint and is
in no way covered by warranty.
DOOR GLASS REPLACEMENT
It is recommended that your dealer replace the glass if broken. The door glass is made of high temperature
PYRO CERAMIC. To replace the glass, unscrew and remove the four (4) glass retainers. Remove the
glass and any broken pieces. High temperature fiberglass tape should be used around the glass. Replace
the glass by securing the glass retainers back to the frame ensure the glass is seated in the bottom glass
retainer. The use of substitute materials is prohibited use only part 20-023.
CONTROL BOARD ERROR MESSAGES
1. Light # 2 on Heat output bar flashing - The Vacuum Switch contacts have opened for more than
15 seconds. Check vent for blockages and combustion blower for operation.
2. Light # 3 on Heat output bar flashing - The exhaust temperature switch has opened (fire has
gone out). Check for fuel in hopper, damper setting, and heat output level; adjust as necessary. Check
high limit switch.
To reset control board, press ON/OFF button after problem has been solved.
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NAME OF OWNER:
_________________________________________
ADDRESS:
_________________________________________
_________________________________________
_________________________________________
PHONE:___________________________________
NAME OF DEALER:
_________________________________________
ADDRESS:
_________________________________________
_________________________________________
_________________________________________
PHONE:___________________________________
MODEL:___________________________________
SERIAL NUMBER:___________________________
DATE OF PURCHASE: _____________ (dd/mm/yyyy)
DATE OF INSTALLATION:___________(dd/mm/yyyy)
MAGNEHELIC AT INSTALL:___________________
INSTALLER’S SIGNATURE:
_________________________________________
NAME OF INSTALLER:
_________________________________________
ADDRESS:
_________________________________________
_________________________________________
_________________________________________
PHONE:___________________________________
WARRANTY: If you have any concerns with your unit please contact the dealer where you purchased
the stove.
MANUFACTURED BY:
SHERWOOD INDUSTRIES LTD.
6782 OLDFIELD RD. SAANICHTON, BC, CANADA V8M 2A3
www.enviro.com
April 27, 2007
C-11207
Installation Data Sheet
The following information must be recorded by the installer for warranty purposes and future reference.