Empire Comfort Systems GATEWAY 3500 User manual

TEST REPORT
SCOPE: EMISSIONS, EFFICIENCY AND OUTPUT
FUEL: CORDWOOD
TEST STANDARD: EPA
MODEL: Gateway 3500 WOOD STOVE

Guillaume Thibodeau-Fortin
2018-05-22
Test load procedure for certification of 3.5 Series wood stove using
ASTM E3053-17 according to EPA Alt-127
Low burn rate
Stove lighting: 14.1 lbs
Split the start-up fuel log into 8 pieces. Crisscross the 8 pieces on the brick, leaving some space between
each wood pieces (3 in the bottom, 3 in the middle and 2 on the top). Crisscross the kindling on the top of
the start-up fuel. The kindling is made of between 14-16 finly split piece of wood that are 10% of moisture
content. Place crumbled newspaper on top of the kindling (5 full sheets). Light up the paper and let the
door ajar at 90° until the flue temperature reaches 170°F, then close the door. The fan is always OFF.
Pre-load (high burn): 29 lbs
When there is coal bed of 3.3 lb left, break ashes and level coal bed, then add pre-load in an East-West
configuration divided in 3 columns: 2 smallest logs in the back, 2 logs in the middle and 2 logs in the front.
Leave one inch or air space between the rear bricks and the first column, another one inch between the
first two columns, and finally leave no space between the second and the third column. Let the door ajar
to leave a space of one inch on the door handle’s side for 3 minutes (including loading time). Close the
door and let burn until the weight is down to target.
When the average stove temperature gets to 355°F, slightly level the coal bed. Let the door ajar by one
inch for one minute. There should be approximately 4.5 to 4.6 lb of coal bed and the average temperature
should be around 350°F.
Loading: 34 lbs
For the loading, put 2 logs at the back, 2 in the center and 2 in the front. The distance between the logs
and the rear brick shall be approximately 1 inch. There should be one inch of air space between all the
columns. Let the door ajar for 6 minutes 20 seconds and then close the door with the primary air control
open. When the oxygen falls below 7.5% and the CO increase above 3500ppm, close the primary air
control by introducing a ½” cylinder into the primary air intake. Remove the cylinder. Close the primary air
control completely at 16 minutes 20 seconds or when 15% of the load weight has been consumed,
whichever comes first. Start the fan at minimum speed at 30 minutes.
Medium burn rate
Stove lighting: 14.1 lbs
Use the same method than for low burn rate.
Pre-load (high burn): 29 lbs
Use the same method than for low burn rate.

Guillaume Thibodeau-Fortin
2018-05-22
Loading: 34 lbs
For the loading, put 2 logs at the back, 2 in the center and 2 in the front. The distance between the logs
and the rear brick shall be approximately 1 inch. There should be one inch of air space between all the
columns. Let the door ajar for 6 minutes 20 seconds and then close the door with the primary air control
open. When the oxygen falls below 7.5% and the CO increase above 3500ppm, close the primary air
control by introducing a ½” cylinder into the primary air intake. Remove the cylinder. Close the primary air
control using a ¼” cylinder into the primary air intake at 16 minutes 20 seconds or when 15% of the load
weight has been consumed, whichever comes first. Remove the cylinder. Start the fan at medium speed
at 30 minutes.
High burn rate
Note: For this test run, according to ASTM E3053-17, the sampling starts as soon as the kindling is ignited
(cold start).
Stove lighting: 14.1 lbs
Split the start-up fuel log into 8 pieces. Crisscross the 8 pieces on the brick, leaving some space between
each wood pieces (3 in the bottom, 3 in the middle and 2 on the top). Crisscross the kindling on the top of
the start-up fuel. The kindling is made of between 14-16 finly split piece of wood that are 10% of moisture
content. Place crumbled newspaper on top of the kindling (5 full sheets). Light up the paper and let the
door ajar at 90° until the flue temperature reaches 170°F, then close the door. The fan is always OFF.
High burn: 29 lbs
When there is coal bed of 3.3 lb left, break ashes and level coal bed, then add the load in an East-West
configuration divided in 3 columns: 2 smallest logs in the back, 2 logs in the middle and 2 logs in the front.
Leave one inch or air space between the rear bricks and the first column, another one inch between the
first two columns, and finally leave no space between the second and the third column. Let the door ajar
to leave a space of one inch on the door handle’s side for 3 minutes (including loading time). Close the
door. Start the fan at full speed.

LISTING REPORT FOR APPLICANT
ISSUED: May 31 2019 2:49PM
INSPECTION TESTS AND EVALUATION OF
SBI Series 3.5(Solution 3.5, Escape 2100, HT-3000, Gateway 3500, Osburn 3500) Emissions and Efficiency -
EPA (44826)
RENDERED TO
Stove Builder International Inc.
250, rue de Copenhague
St-Augustin-de-Desmaures, QC G3A 2H3
Canada
GENERAL: This report gives the results of the inspection, tests and evaluation of the above for compliance
with applicable requirements of the following standards: CSA B415.1 (2010), ASTM E2515 Ed. 2011
(R2017), ASTM E3053 (2017)
This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of
the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is
authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or
service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or
service is or has ever been under an Intertek certification program.

PRODUCT DESCRIPTION
Product Covered:
SBI Series 3.5(Solution 3.5, Escape 2100, HT-3000, Gateway 3500, Osburn 3500) Emissions and Efficiency -
EPA
Product Description:
Product covered
Series 3.5 (Solution 3.5, Escape 2100, HT-3000, Gateway 3500, Osburn 3500)Wood Fuel Room Heaters
Final emission results are as follows:
Model
Series 3.5
(Solution 3.5,
Escape 2100,
HT-3000,
Gateway 3500,
Osburn 3500)
Units
Maximum Output 49,500 Btu/hr
Weighted average Emission Rate 1.32 g/hr
Weighted Average CO Emissions Rate 1.37 g/min
Weighted Average Efficiency 71 %HHV
Test Fuel Cordwood
Attribute Value
Criteria CSA B415.1 (2010)
Criteria ASTM E2515 Ed. 2011 (R2017)
Criteria ASTM E3053 (2017)
CSI Code 10 30 00 Fireplaces and Stoves
Intertek Services Certification
Listed or Inspected LISTED
Listing Section SOLID FUEL EMISSIONS AND EFFICIENCY
Report Number G103536746
Spec ID 44826
Test Original Issue Date July 13, 2018
Verification Testing No
Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
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DRAWING INDEX
Certificate of Conformity - SBI - Solution 3.5 Series Emissions and Efficiency - EPA
Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
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CERTIFICATE OF CONFORMITY - SBI - SOLUTION 3.5 SERIES
EMISSIONS AND EFFICIENCY - EPA
www.intertek.com
The certificate and schedule are held in force by regular annual surveillance visits by Intertek Testing Services NA, Inc. and the reader or user should contact Intertek to validate its
status. This certificate remains the property of Intertek Testing Services NA, Inc. and must be returned to them on demand. This Certificate is for the exclusive use of Intertek's Client
and is provided pursuant to the Certification agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement.
Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this certificate. Only
the Client is authorized to permit copying or distribution of this certificate and then only in its entirety. Use of Intertek’s Certification mark is restricted to the conditions laid out in the
agreement. Any further use of the Intertek name for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. Initial Factory
Assessments and Follow up Services are for the purpose of assuring appropriate usage of the Certification mark in accordance with the agreement, they are not for the purposes of
production quality control and do not relieve the Client of their obligations in this respect.
Certificate of Conformity
Certification body: Intertek Testing Services NA, Inc.
Initial registration: July 31-2018
Date of expiry: No expiry date
Issue status: 2
Product Model Series 3.5 (Escape 2100, HT-3000, Solution 3.5, Osburn 3500,
Gateway 3500)
Maximum Output: 49 500 Btu/hour
Weighted Average Emissions Rate: 1.32 g/hr
Weighted Average CO Emissions Rate: 1.37 g/min
Weighted Average Efficiency: 71% HHV
Test Fuel Type: Cordwood
Compliance: Certified to comply with 2020 particulate emissions standard.
Report Number: 103536746MTL-002
Emissions –Adjustable burn rate
wood burning heater
ASTM E3053-17, ASTM E2515-2011, CSA B415.1-2010
Certificate number: WHI18 –21514309
Organization:
Company Name: Stove Builder International inc.
Address: 250 de Copenhague
City, State: St-Augustin-de-Desmaures
Zip Code: G3A 2H3
Country: Canada
This is a certificate of conformity
to certify that the bearer has
successfully completed the
requirements of the above
scheme which include the
testing of products, the initial
assessment, and are subject to
continuing annual assessments
of their compliance and testing
of samples of products taken
from production (as applicable
to the scheme) and has been
registered within the scheme for
the products detailed.
Charles Meyers
Certification Manager
03/05/2019
Name
Signature
Date
Registered address:
Intertek Testing Services NA, Inc. 545 E. Algonquin Rd. Arlington Heights, IL 60005 USA
Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
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MANUFACTURING INFORMATION
Product Covered
The Solution Series 3.5 ( with models Solution 3.5, Escape 2100, HT-3000, Gateway 3500, Osburn 3500) is a
Wood Fuel Room Heater. The models are constructed of sheet steel. The outer dimensions are 33 3/4-inches
deep, 34 7/16-inches high, and 27 9/16-inches wide. The units have a door located on the front with a viewing
glass.
Proprietary drawings and manufacturing methods are on file at the Intertek site at 1829
32nd Avenue Montreal (Lachine), QC Canada H8T 3J1 and in the EPA filing system. Drawings can also be found
in this specification and in the EPF system.
The Solution 3.5, (the represenattive unit) unit was tested. It is considered a representative unit of the Series 3.5
(Solution 3.5, Escape 2100, HT-3000, Gateway 3500, Osburn 3500).
Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
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SIGNATURE PAGE
Reported By:
Reviewed By:
Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
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DRAWING INDEX
1 - Installation Manual Series 3.5 English
1 - Installation Manual Series 3.5 French
1 - Installation Manual Solution 3.5 English
1 - Installation Manual Solution 3.5 French
2 - Labels
3 - Drawings Solution 3.5
3 - Drawings Escape 2500
3 - Drawings Gateway 3500
3 - Drawings HT 3000
3 - Drawings Osburn 3500
3 - Drawings Solution 3.5
Report prepared for Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on
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Installation
and Operation
Manual
MOBILE
HOME
Printed in Canada
Safety tested according to
ULC S627, UL 1482 and
UL 737 standards by an
accredited laboratory.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION REQUIREMENTS IN
LOCAL AREA.
READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE OF THIS WOOD STOVE. FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN DEATH.
READ AND KEEP THIS MANUAL FOR REFERENCE
46100A
2019-06-12
US Environmental Protection
Agency phase II certified wood
stove compliant with 2020
cordwood standard.
GATEWAY 3500
(WB35FS model)
PEDESTAL VERSION ONLY

The following pages provide
general advice on wood
heating, detailed instructions
for safe and effective
installation, and guidance
on how to get the best
performance from this stove.
It is highly recommended
that this wood burning hearth
product be installed and
serviced by professionals who
are certified by a «Qualified
Agency» such as NFI (National
Fireplace Institute®) or CSIA
(Chimney Safety Institute of
America) in the United States
and in Canada by WETT
(Wood Energy Technology
Transfer) or in Quebec
by APC (Association des
Professionnels du Chauffage).
Contact local building or fire
officials about restrictions
and installation inspection
requirements in your local
area.
A building permit might be
required for the installation of
this stove and the chimney
that it is connected to. It is
also highly recommended to
inform your home insurance
company.
Please read this entire manual
before installing and using this
stove.
A primary alternative heat
source should be available in
the home. This heating unit
may serve as a supplementary
heat source. The manufacturer
cannot be responsible for
additional heating costs
associated with the use of an
alternative heat source.
THANK YOU FOR CHOOSING
THIS WOOD STOVE.
If this stove is not
installed properly,
combustible materials
near it may overheat
and catch fire.
To reduce the
risk of fire, follow
the installation
instructions in this
manual.

Page 4 Installation and Operation Manual - Gateway 3500
ENGLISH
TABLE OF CONTENTS
PART A - OPERATION AND MAINTENANCE .............................................................................. 7
1. Safety Information................................................................................................................... 7
2. General Information ................................................................................................................ 8
2.1 Performances..................................................................................................................... 8
2.2 Specifications..................................................................................................................... 9
2.3 Dimensions .......................................................................................................................10
2.4 Materials...........................................................................................................................14
2.5 Zone Heating ....................................................................................................................14
2.6 Emissions and Efficiency....................................................................................................15
3. Fuel ........................................................................................................................................ 15
3.1 Tree Species .....................................................................................................................15
3.2 Log Length .......................................................................................................................16
3.3 Piece Size.........................................................................................................................16
3.4 Compressed Wood Logs....................................................................................................16
3.5 Drying Time.......................................................................................................................16
4. Operating the Stove.............................................................................................................. 17
4.1 Blower Operation ..............................................................................................................18
4.2 The Use of a Fire Screen....................................................................................................18
5. Burning Wood Efficiently ..................................................................................................... 18
5.1 First Use ...........................................................................................................................18
5.2 Lighting Fires ....................................................................................................................19
5.3 Combustion Cycles............................................................................................................20
5.4 Rekindling a Fire................................................................................................................20
5.5 Removing Ashes................................................................................................................21
5.6 Air Intake Control...............................................................................................................21
5.7 Fire Types .........................................................................................................................22
6. Maintenance.......................................................................................................................... 24
6.1 Cleaning and Painting ........................................................................................................24
6.2 Refractory Materials and Baffle...........................................................................................24
6.3 Glass Door........................................................................................................................24
6.4 Door.................................................................................................................................25
6.5 Exhaust System ................................................................................................................26
PART B - INSTALLATION............................................................................................................ 28
7. Safety Information and Standards ....................................................................................... 28
7.1 Mobile Home.....................................................................................................................28
7.2 Regulations Covering Stove Installation...............................................................................28
7.3 Location of the Certification Label ......................................................................................28

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Installation and Operation Manual - Gateway 3500
ENGLISH
Dealer:
Installer:
Phone Number:
Serial Number:
8. Clearances to Combustible Material.................................................................................... 29
8.1 Clearances........................................................................................................................30
8.2 Floor Protection.................................................................................................................33
8.3 Reducing Clearances Safely...............................................................................................34
9. The Venting System .............................................................................................................. 37
9.1 Suitable Chimneys.............................................................................................................37
9.2 Minimum Chimney Height...................................................................................................39
9.3 Chimney Location..............................................................................................................39
9.4 Supply of Combustion Air ..................................................................................................40
9.5 Chimney Connector...........................................................................................................41
Appendix 1: Legs Installation ................................................................................................... 43
Appendix 2: Pedestal Installation ............................................................................................. 46
Appendix 3: Door Overlay Installation...................................................................................... 48
Appendix 4: Decorative Panels................................................................................................. 49
Appendix 5: Optional Step Top Add On Installation ................................................................ 50
Appendix 6: Optional Fresh Air Intake Kit Installation............................................................. 51
Appendix 7: Optional Fire Screen Installation.......................................................................... 52
Appendix 8: Optional Blower Installation................................................................................. 53
Appendix 9: Optional Thermodisc Installation......................................................................... 54
Appendix 10: Air Tubes and Baffle Installation ........................................................................ 55
Appendix 11: Mobile Home Installation ................................................................................... 57
Appendix 12: Exploded Diagram and Parts List...................................................................... 58
EMPIRE Limited Lifetime Warranty ........................................................................................... 61

Page 6 Installation and Operation Manual - Gateway 3500
ENGLISH
CERTIFICATION PLATE

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Installation and Operation Manual - Gateway 3500
ENGLISH
PART A - OPERATION AND MAINTENANCE
1. Safety Information
• This stove has been tested for use with an open door in conjunction with a fire screen, sold
separately. The door may be opened, or fire screen removed only during lighting procedures or
reloading. Always close the door or put back on the fire screen after ignition. Do not leave the stove
unattended when the door is opened with or without the fire screen.
• WARNING : OPERATE ONLY WITH THE DOOR FULLY CLOSED OR FULLY OPEN WITH THE
FIRE SCREEN IN PLACE. IF THE DOOR IS LEFT PARTLY OPEN, GAS AND FLAME MAY BE
DRAWN OUT OF THE OPENING, CREATING RISKS FROM BOTH FIRE AND SMOKE.
• HOT WHILE IN OPERATION, KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT
MAY CAUSE SKIN BURNS. GLOVES MAY BE NEEDED FOR THE STOVE OPERATION.
• Using a stove with cracked or broken components, such as glass, firebricks or baffle may produce
an unsafe condition and may damage the stove.
• Open the air control fully before opening the loading door.
• NEVER USE GASOLINE, LANTERN FUEL (NAPHTHA), FUEL OIL, MOTOR OIL, KEROSENE,
CHARCOAL LIGHTER FLUID, OR SIMILAR LIQUIDS OR AEROSOLS TO START A FIRE IN
THIS STOVE. KEEP ALL SUCH LIQUIDS OR AEROSOLS WELL AWAY FROM THE STOVE
WHILE IT IS IN USE.
• Do not store fuel within heater minimum installation clearances.
• Burn only seasoned natural firewood.
• This appliance should always be maintained and operated in accordance with these instructions.
• Do not elevate the fire by using a grate.
• Do not use makeshift materials or make any compromises when installing this appliance.
• This wood heater needs periodic inspection and repairs for the proper operation. It is against
federal regulations to operate this wood heater in a manner inconsistent with operating instructions
in this manual.
• A smoke detector, a carbon monoxide detector and a fire extinguisher should be installed in the
house. The location of the fire extinguisher should be known by all family members.
This product can expose you to chemicals including carbon monoxide, which is
known to the State of California to cause cancer, birth defects or other reproductive
harm. For more information go to www.P65warnings.ca.gov/

Page 8 Installation and Operation Manual - Gateway 3500
ENGLISH
2. General Information
2.1 Performances
Values are as measured per test method, except for the recommended heating area, firebox volume,
maximum burn time and maximum heat output.
Model Gateway 3500
Fuel Type Dry Cordwood
Combustion Technology Non-Catalytic
Recommended heating area (sq. ft..)1 1,000 to 2,700 ft2(93 to 251 m2)
Nominal firebox volume 3.5 ft3(0.099 m3)
Maximum burn time110 hours
Maximum heat output (dry cordwood)2 110,000 BTU/h (32.2 kW)
Overall heat output rate (min. to max.)2 3 18,200 BTU/h to 49,500 BTU/h
(5.3 kW to 14.5 kW)
Average overall efficiency3
Dry cordwood 71 % (HHV)4 76 % (LHV)5
Optimum efficiency6 77 %
Average particulate emissions rate7 1.32 g/h (EPA / CSA B415.1-10)8
Average CO9 92 g/h
1Recommended heating area and maximum burn time may vary subject to location in home, chimney draft,heat loss factors, climate, fuel type
and other variables. The recommended heated area for a given appliance is dened by the manufacturer as its capacity to maintain a minimum
acceptable temperature in the designated area in case of a power failure.
2The maximum heat output (dry cordwood) is based on a loading density varying between 15 lb/ft3and 20 lb/ft3. Other performances are based on
a fuel load prescribed by the standard. The specied loading density varies between 7 lb/ft³ and 12 lb/ft3. The moisture content is between 19%
and 25%.
3As measured per CSA B415.1-10 stack loss method.
4Higher Heating Value of the fuel.
5Lower Heating Value of the fuel.
6Optimum overall efciency at a specic burn rate (LHV).
7This appliance is ofcially tested and certied by an independent agency.
8Tested and certied in compliance with CFR 40 part 60, subpart AAA, section 60.534(a)(1(ii) and ASTM E3053-17
9Carbon monoxide.

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Installation and Operation Manual - Gateway 3500
ENGLISH
2.2 Specifications
Maximum log length10 22 in (560 mm) east-west
Flue outlet diameter 6 in (150 mm)
Recommended connector pipe diameter 6 in (150 mm)
Type of chimney ULC S629, UL 103 HT (2100 °F)
Baffle material C-Cast
Approved for alcove installation Yes
Approved for mobile home installation11 Yes
Type of door Simple, glass with cast iron frame
Type of glass Ceramic glass
Blower Optional (up to 130 CFM)
Particulate emission standard12 EPA / CSA B415.1-10
USA standard (Safety) UL 1482, UL 737
Canada standard (Safety) ULC S627
10 North-south: ends of the logs visible, East-west: sides of the logs visible.
11 Mobile homes (Canada) or manufactured homes (USA): The US Department of Housing and Urban Development describes “manufactured homes”
better known as “mobile homes” as follows; buildings built on xed wheels and those transported on temporary wheels/axles and set on a permanent
foundation. In Canada, a mobile home is a dwelling for which the manufacture and assembly of each component is completed or substantially
completed prior to being moved to a site for installation on a foundation and connection to service facilities and which conforms to the CAN/CSA-
Z240 MH standard.
12 Tested and certied in compliance with CFR 40 part 60, subpart AAA, section 60.534(a)(1(ii) and ASTM E3053-17.

Page 10 Installation and Operation Manual - Gateway 3500
ENGLISH
2.3 Dimensions
2.3.1 Stove Dimensions with Queen Anne Legs
28 1/8"
714mm
14 1/8"
357mm
8 1/8"
206mm
Ø
6"
150mm
Figure 1: Top View
27 3/4"
706mm
18 1/2"
469mm
12 1/4"
310mm
32 1/8"
817mm
30 1/8"
766mm
23 1/2"
597mm
30 1/2"
774mm
24 5/8"
625mm
Figure 2: Front View Figure 3: Side View

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Installation and Operation Manual - Gateway 3500
ENGLISH
2.3.2 Stove Dimensions with Straight Legs
28 1/8"
714mm
14 1/8"
357mm
8 1/8"
206mm
Ø
6"
150mm
Figure 4: Top View
12 1/4"
310mm
18 1/2"
468mm
28 1/2"
725mm
32 1/8"
817mm
24 5/8"
625mm
30 1/8"
766mm
24 1/4"
617mm
30 1/2"
774mm
Figure 5: Front View Figure 6: Side View