Enviro 50-1095 User manual

PELLET STOVE
Bern
PLEASE READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE
OF THIS PELLET BURNING ROOM HEATER. FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, BODILY INJURY
OR EVEN DEATH
Contact your building or fire officials about restrictions and installation
inspection requirements in your area.
SHERWOOD INDUSTRIES IS AN ENVIRONMENTALLY RESPONSIBLE COMPANY. THIS MANUAL IS PRINTED ON RECYCLED PAPER.
PLEASE KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
TECHNICAL MANUAL
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50-1095

2
Introduction...................................................................................................................................3
Rating Label Location................................................................................................................3
Important Safety Data...............................................................................................................3
Safety Warnings And Recommendations.....................................................................................3
Installation.....................................................................................................................................5
Deciding Where to Locate your Pellet Appliance..........................................................................5
Removing Pellet Stove From Pallet.............................................................................................5
Appliance Dimensions and Specifications .................................................................................6
Clearances to Combustibles.......................................................................................................7
Alcove Clearances.....................................................................................................................7
Vent Termination Requirements.................................................................................................8
Exhaust Location......................................................................................................................9
Corner Through Wall Installation................................................................................................9
Horizontal Exhaust Through Wall Installation.............................................................................10
Through Wall With Vertical Rise and Horizontal Termination Installation - Freestanding................11
Inside Vertical Installations......................................................................................................12
Outside Vertical Installations....................................................................................................12
Hearth Mount Installation........................................................................................................13
Exterior Mounted Exhaust Blower.............................................................................................15
Typical Through Wall With Exterior Blower Kit Installation - Horizontal Termination......................16
Typical Through Wall With Exterior Blower Kit Installation - Vertical Termination..........................17
Thermostat Installation............................................................................................................18
Optional Slider/Damper Installation..........................................................................................18
Slider/Damper Set-Up..............................................................................................................19
Optional Panel Kit....................................................................................................................20
Optional Fan Kit.......................................................................................................................21
Troubleshooting............................................................................................................................22
Fuses.....................................................................................................................................24
Wiring Diagram.............................................................................................................................25
Parts List......................................................................................................................................26
Parts Diagram - Components..........................................................................................................28
Parts Diagram - Steel.....................................................................................................................29
Warranty...............................................................................................................................30
Installation Data Sheet..................................................................................................................31
Table of Contents

3
Introduction
* This manual is designed for the technician in conjunction with the owner’s manual. *
RATING LABEL LOCATION:
The rating label is located on the back of the unit.
IMPORTANT SAFETY DATA:
Please read this entire Owner’s Manual before installing or operating this ENVIRO Pellet
Stove. Failure to follow these instructions may result in property damage, bodily injury
or even death. Contact your local building or fire official to obtain a permit and any information on
installation restrictions and inspection requirements for your area.
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.
Be sure to maintain the structural integrity of the home when passing a vent through walls, ceilings, or
roofs.
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.
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.
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 regard to your stove or the above-mentioned information, please feel free
to contact your local dealer for further clarification and comments.
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, naptha or engine oil.
Unit hot while in operation. Keep children, clothing and furniture away. Contact
may cause skin burns.
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: “INSTALLATION SLIDER/DAMPER SETTING”.

4
Introduction
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,, nominal
average 0.8 Amps (1.4 Amps peak), 50 hertz electrical outlet and also must be accessible. If this power
cord should become damaged, a replacement power cord must be purchased from 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 (322 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.
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 is optional. Consider all large air moving devices when installing your unit
and provide room 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
Installation
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 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:
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 screw located on the front of the
cabinet side, below the louvers and loosen the
screw behind the ash door.
3. Using a 5/16” socket of flat head screwdriver,
remove the three (3) wood screws that are holding
the bottom of the stove to the pallet. There is one
(1) screw behind each side panel and one (1) at the
back behind the back grill.
4. Close the side panels.
5. Install the four (4) leveling legs into the nuts in the
base.
Figure 1: Screws to take out to remove stove from
pallet.

6
Installation
APPLIANCE DIMENSIONS AND SPECIFICATIONS:
Figure 2: Dimensions of Bern.
15 1/2"
(393 mm)
18 7/8"
(481 mm)
17 1/2"
(444 mm) 19 5/8"
(497 mm)
17 7/8"
(455 mm)
34 3/4"
(883 mm)
Weight (with full hopper): 238 lb (108 Kg)
Hopper Capacity: up to 52 lb (23.6 Kg)
Voltage: 220 - 240 V
Max Current: 1.4 Amps
Consumption on High: 2.9 lb/hr (1.3 Kg/hr)*
Consumption on Low: 0.9 lb/hr (0.4 Kg/hr)*
(Note: Consumption will vary with the type of
fuel used.)

7
Installation
CLEARANCES TO COMBUSTIBLES:
Use a hearth pad that extends 6 inches (15 cm) in front of the unit when installing on a combustible
floor.
ALCOVE CLEARANCES:
This unit may be installed in an alcove. Maintain
these clearances to combustibles.
Minimum Alcove width 48 inches (122 cm)
Minimum Alcove height 48 inches (122 cm)
Maximum Alcove depth 48 inches (122 cm)
Install vent at clearances specified by
the vent manufacturer.
Side Wall
Back Wall
AdjacentWall
8"
(20cm)
4"
(8cm)
4" (8cm)
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These dimensions are minimum clearances but it
is recommended that you ensure sufficient room
for servicing, routine cleaning and maintenance.
Side wall to unit 8 inches (20 cm)
Back wall to unit 4 inches (10 cm)
Corner to unit 4 inches (10 cm)
Figure 3: Bern Clearance to Combustibles.
Figure 4: Bern Minimum Alcove Size.

fumes such as stairwells, covered breezeway, etc.
2. Vent surfaces can become hot enough to cause burns if touched by children. Non-combustible shielding
or guards may be required.
3. Termination must exhaust above the inlet elevation. It is recommended that at least five feet of
vertical pipe be installed outside when the appliance is vented directly through a wall, to create some
natural draft to prevent the possibility of smoke or odor during appliance shut down or power failure.
This will keep exhaust from causing a nuisance or hazard from exposing people or shrubs to high
temperatures. 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.
Installation
VENT TERMINATION REQUIREMENTS:
IT IS RECOMMENDED THAT YOUR PELLET STOVE BE INSTALLED BY AN AUTHORIZED DEALER/INSTALLER.
Figure 5: Use in conjunction with Table 1 for allowable exterior vent termination locations.
Table 1: 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) From beside/below any door or window that may be opened.
C 24 in (61 cm) From above any door or window that may be opened.
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
To each side of center line extended above natural gas or propane meter/regulator assembly or
mechanical vent.
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 inlet to any appliance.
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.
Air Supply Inlet Gas Meter Restriction Zone
(Termination not allowed)
Termination Cap
G
G
Opens
Opens
Opens
DF
B
B
AI
H
K
G
G
L
C
E
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
8

9
Installation
EXHAUST LOCATION:
83/4"
(222mm)
10 3/4"
(273mm)
Figure 6: Bern Inlet and Outlet Location.
Base of unit to center of flue 10” (273 mm)
Side of unit to center of flue 8” (222 mm)
[at center of unit]
Figure 7: Corner Installation.
CORNER THROUGH WALL INSTALLATION:
4" (8 cm)
4"
(8 cm)
Wall thimble
manufactured
by pellet vent
manufacturer.

10
Installation
HORIZONTAL EXHAUST THROUGH WALL INSTALLATION:
Vent installation: install vent at clearances specified by the vent manufacturer.
A chimney connector shall not pass through an attic or roof space, closet or similar concealed spaces,
or a floor, or ceiling. Where passage through a wall or partition of combustible construction is desired,
the installation shall conform to CAN/CSA-B365 Installation Code for Solid-Fuel-Burning Appliances and
Equipment. Only use venting of L or PL type with an inside diameter of 3 or 4 inches (7.6 or 10.1 cm).
1. Choose a location for your stove that meets the requirements stated in this manual and allows
installation with the least amount of interference to house framing, plumbing, wiring, etc.
2. Install a non-combustible hearth pad
(where necessary).
3. Place the appliance 15” (37.5 cm) away
from the wall. If the stove is to be set on
a hearth pad, set the unit on it.
4. Locate the center of the exhaust pipe on
the stove. Extend that line to the wall.
Once you have located the center point on
the wall, refer to pellet vent manufacturer
installation instructions for correct hole
size and clearance to combustibles.
5. Install the wall thimble as per the
instructions written on the thimble.
Maintain an effective vapour barrier in
accordance with local building codes.
6. Install a length of 3” (75 mm) or 4” (100
mm) vent pipe into the wall thimble. The
pipe should install easily into the thimble.
7. Connect the exhaust vent pipe to the Figure 8: Straight through wall Installation.
Non-combustible
floor protection.
Existing floor
(combustible)
6"
(15 cm)
4"
(10 cm)
Wall
thimble
Rodent
mesh cap
45°
elbow
12"
(30.5 cm)
Exhaust Tube
3" (75mm) or 4" (100mm) "PL" or "L" vent
Wall Thimble
45° Elbow with screen or
Termination Cap
High Temperature RTV
Silicone Required
Figure 9: Venting to use with straight through wall Installation.
exhaust pipe on the stove.
Seal the connection with high
temperature silicone.
8. Push the stove straight back,
leaving a minimum of 4” (10
cm) clearance from the back
of the stove to the wall. Seal
the vent pipe to the thimble
with high temperature
silicone.
9. The pipe must extend at least
12” (30 cm) away from the
building. If necessary, bring
another length of pipe (PL
type) to the outside of the
home to connect to the
first section. Do not forget
to place high temperature
silicone around the pipe that
passes through the thimble.