Enviro 50-1574 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
Evolution
TECHNICAL MANUAL
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.
50-1574
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..............................................................................................................................7
Clearances to Combustibles.......................................................................................................8
Alcove Clearances.....................................................................................................................8
Hearth Pad Pedestal Installation.................................................................................................9
Vent Termination Requirements................................................................................................10
Outside Fresh-Air Connection...................................................................................................11
Exhaust And Fresh Air Intake Locations....................................................................................11
Mobile Home Installation.........................................................................................................12
Corner Through Wall Installation..............................................................................................12
Horizontal Exhaust Through Wall Installation.............................................................................13
Through Wall With Vertical Rise and Horizontal Termination Installation- Recommended..............14
Through Concrete Wall With Vertical Rise Installations...............................................................14
Inside Vertical Installations......................................................................................................15
Outside Vertical Installations....................................................................................................15
Hearth Mount Installation........................................................................................................16
Exterior Mounted Exhaust Blower.............................................................................................17
Typical Through Wall With Exterior Blower Kit Installation - Horizontal Termination......................18
Typical Through Wall With Exterior Blower Kit Installation - Vertical Termination..........................19
Thermostat Installation............................................................................................................20
Optional Slider/Damper Installation..........................................................................................20
Slider/Damper Set-Up..............................................................................................................21
Troubleshooting............................................................................................................................22
Wiring Diagram.............................................................................................................................25
Parts List......................................................................................................................................26
Parts Diagram - Components..........................................................................................................28
Parts Diagram - Steel.....................................................................................................................29
Installation Data Sheet..................................................................................................................30
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
Remove the two (2)
wood screws (one
on either side of the
unit) to remove the
unit from the pallet.
Installation
RATING LABEL LOCATION:
The rating label is located on the inside of the ash pan cover.
DECIDING WHERE TO LOCATE YOUR PELLET APPLIANCE:
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 15 cm (6”) diameter, or over 180 cm² (28
inches²) 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 2.43 m (8 feet) long and may require a grounded extension cord to reach the
nearest electrical outlet.
REMOVING PELLET STOVE FROM PALLET:
1. Remove the right and left hand cabinet
sides by loosening the three (3) T-20 Torx
screws on the back of the each panel.
2. Remove the one (1) screw located on the
front of the cabinet side, behind the top
louvers and one (1) screw behind the ash
door.
3. Remove the two (2) wood screws that are
holding the bottom of the stove to the
pallet.
4. Close the side panels.
Figure 1: Screws to take out to remove stove from pallet.
6
DIMENSIONS:
221/4" (565 mm)
331/16"
(840 mm)
211/4"
(539 mm)
513/16"
(147 mm)
263/8" (670 mm)
277/8"
(708 mm)
243/8" (619 mm)
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.
Installation
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 ”)
*Note: Consumption will vary with the type of fuel used.
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)
7
Installation
Side Wall
Back Wall
Adja
c
e
n
t
W
a
l
l
77/8"
(20cm)
4"
(10cm)
4" (10cm)
48"
(122cm)
48"
(122cm)
48"
(122cm)
CLEARANCES TO COMBUSTIBLES:
This unit can be installed on a combustible floor when installed with the optional hearth pad part 50-1568
(for example linoleum, hardwood flooring). If this unit is to be installed onto a carpeted surface, a hearth
pad must be used for stability.
These dimensions are minimum clearances
but it is recommended that you ensure
sufficient room for servicing, 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)
Figure 3: Evolution Clearance to Combustibles.
ALCOVE CLEARANCES:
This unit may be installed in an alcove.
Maintain these clearances to combustibles.
Minimum Alcove width 1220mm (48 inches)
Minimum Alcove height 1220mm (48 inches)
Maximum Alcove depth 1220mm (48 inches)
Install vent at clearances specified by
the vent manufacturer.
Figure 4: Evolution Minimum Alcove Size.
8
Installation
HEARTH PAD PEDESTAL INSTALLATION:
This unit can be installed on a combustible floor (e.g. linoleum, hardwood flooring) when the Optional
Hearth Pad is installed. If this unit is to be installed onto a carpeted surface, a solid pad must be used
underneath the Optional Hearth Pad for stability.
Carefully place the the pellet appliance on its back, on the pallet (allow the exhaust tube to fit thru an
opening in the pallet). Align the holes in the hearth pad and the unit and install the four (4) screws
provided. Stand the unit back up. Adjust the leveling legs to below the Hearth Pad, to support the weight
of the unit.
When moving the unit - be careful not to damage the floor or the Hearth Pad.
Figure 5: Installing Hearth Pad Pedestal onto Evolution.
9
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