Intertek 25-CAB80 User manual

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. Version: 11 November 2021 SFT-BCH-OP-19c
Page 1 of 2
CERTIFICATE OF CONFORMITY
This is a certificate of conformity to confirm that the bearer has successfully completed the requirements of the Intertek
certification scheme which include the testing of products and the initial assessment. The bearer is subject to continuing
assessments of their compliance through surveillance and testing of products samples taken from production (as applicable to
the scheme) and has been registered within the scheme for the products detailed. The validity of this certificate is contingent to
the listing’s status on the Intertek Directory of Building Products: bpdirectory.intertek.com.
Jean-Philippe Kayl
Vice President – Global Certification
14-Jun-22
Name
Signature
Date
Emissions – Pellet Heater
EPA 40 CFR Part 60, Subpart AAA, ASTM E2779-10 (2017), ASTM E2515-11 (2017), CSA B415.1-10 (R2020)
WHI22 – 21514323
Organization
Stove Builder International
250 de Copenhauge
St Augustin de Desmaures, QC G3A 2H3
Canada
Product: 25-CAB80, 55-SHPCAB80, 55-TRCAB80
Catalytic: No
Maximum Output: 20,959 Btu/hr
Weighted Average Emissions: 1.13
Weighted Average Annual Delivered Efficiency (HHV): 64.1%
Test Fuel Type: Premium Grade Wood Pellets
Weighted Average CO Emissions Rate (g/min): 0.029
Conformance: Complies with 2020 particulate emissions standard
Product Evaluation No.: 104671974MID-001
Product Evaluation No.: 105096672MID-001b
Test Report No.: 103348206MID-001bR2
Certification Body: Intertek Testing Services NA, Inc.
Registered Address: 545 E. Algonquin Rd., Arlington Heights, IL 60005, USA
Initial Issue Date:14-Jun-22
Date of Expiry: 13-Apr-23
Issue Status: 1

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. Version: 11 November 2021 SFT-BCH-OP-19c
Page 2 of 2
Certificate of Conformity WHI22-21514323
Appendix A
Certificate of Conformity #:
Certificate of Conformity Issue Date:
WHI22-21514323
June 14, 2022
REVISION #
REVISION DATE
REPORT PAGES
REVISION
0
June 14, 2022
N/A
Original Report Issue. Ownership transferred from
England’s Stove Works to Stove Builder International.
Previous CoC WHI15-208507005.
Revised Report #:
Report Issue Date:
103348206MID-001b
March 15, 2018
REVISION #
REVISION DATE
REPORT PAGES
REVISION
0
March 15, 2018
N/A
Original Report Issue
1
04/13/18
19
Added similar models 55-SHPCAB80, 55-TRPCAB80, 25-
CAB80S, 55-SHPCAB80S and 55-TRPCAB80S to conclusion
of report.
2
6/14/22
3
Updated the conditioning burn information
5
Test Fuel Properties updated to identify test fuel used
17
Added anomalies, appropriateness, and validation
statement. Added note for not measuring ambient
particulates.
18
added medium burn rate statement
22
Added Appendices
Appendix F
Added 50+ hours of conditioning burn data

ENGLAND STOVE
WORKS, INC.
TEST REPORT
SCOPE OF WORK
EPA EMISSIONS TESTING FOR MODEL 25CAB-80
REPORT NUMBER
103348206MID-001BR2
TEST DATE(S)
03/01/18
ISSUE DATE [REVISED DATE]
03/15/18 06/14/22
PAGES
23
DOCUMENT CONTROL NUMBER
GFT-OP-10c (05/10/17)
© 2017 INTERTEK

8431 Murphy Drive
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Telephone: [phone]
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
Report No.: 103348206MID-001BR2
Date: 06/14/22
Version: 05/10/17 Page 2 of 22 GFT-OP-10c
REPORT ISSUED TO
ENGLAND STOVE WORKS, INC.
589 South Five Forks Road
Monroe, VA 24574-2821
SECTION 1
SCOPE
Intertek Building & Construction (B&C) was contracted by England Stove Works, Inc., 589 South
Five Forks Road, Monroe VA, 24574-2821 to perform testing in accordance with EPA 40 CFR Part
60 “Standards of Performance for New Residential Wood Heaters, New Residential Hydronic
Heaters and Forced-Air Furnaces”, ASTM E2515-11- Standard Test Method for Determination of
Particulate Matter Emissions Collected by a Dilution Tunnel, ASTM E2779-10 - Standard Test
Method for Determining Particulate Matter Emissions from Pellet Heaters, and CSA B415.1-10 -
Performance Testing of Solid-Fuel-Burning Heating Appliances on their Model 25CAB-80, Pellet
Fuel Room Heater.Results obtained are tested values and were secured by using the
designated test method(s). Testing was conducted at Intertek test facility in Middleton, WI.
This report does not constitute certification of this product nor an opinion or endorsement by
this laboratory.
SECTION 2
SUMMARY OF TEST RESULTS
The appliance tests resulted in the following performance:
Particulate Emissions: 1.130 g/hr
Carbon Monoxide Emissions: 0.029 g/min
Heating Efficiency: 64.1 % (Higher Heating Value Basis)
For INTERTEK B&C:
COMPLETED
BY:
Ken Slater
REVIEWED BY:
Brian Ziegler
TITLE:
Associate Engineer –
Hearth
TITLE:
Technical Team Leader -
Hearth
SIGNATURE:
SIGNATURE:
DATE:
06/14/22
DATE:
06/14/22
aaa:bbb

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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
Report No.: 103348206MID-001BR2
Date: 06/14/22
Version: 05/10/17 Page 3 of 22 GFT-OP-10c
SECTION 3
TEST METHOD(S)
The specimen was evaluated in accordance with the following:
EPA 40 CFR Part 60-2015 - Standards of Performance for New Residential Wood Heaters,
New Residential Hydronic Heaters and Forced-Air Furnaces
ASTM E2515-2011 - Standard Test Method for Determination of Particulate Matter
Emissions Collected by a Dilution Tunnel
ASTM E2779-2010 - Standard Test Method for Determining Particulate Matter Emissions
from Pellet Heaters
CSA B415.1-2010 - Performance Testing of Solid-Fuel-Burning Heating Appliances
SECTION 4
MATERIAL SOURCE
A sample was submitted to Intertek directly from the client. The sample was not independently
selected for testing. The test unit was received at Intertek in Middleton, WI on 2/21/18 and was
shipped via the client. The unit was assigned sample ID # MID1802211213-001. The unit was
inspected upon receipt and found to be in good condition. The unit was set up following the
manufacturer's instructions without difficulty.
Following assembly, the unit was placed on the test stand. Prior to beginning the emissions
tests, the manufacturer operated the unit for a minimum of 48 hours at high-to-medium burn
rates to break in the stove. This break-in period was witnessed by England Stove Works, Inc.
staff and data is included in the final report. The unit was found to be operating satisfactory
during this break-in. The 48 plus hours of pre-burning was conducted prior to the test dates.
The fuel used for the break-in process was wood pellets.
Following the pre-burn break-in process the unit was allowed to cool and ash and residue was
removed from the firebox. The unit's chimney system and laboratory dilution tunnels were
cleaned using standard wire brush chimney cleaning equipment. On 3/1/18 the unit was set-up
for testing.

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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
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SECTION 5
EQUIPMENT
Equipment
INV Number
Calibration Due
MU
Platform Scale
008
7/17/18
+ 30g
Balance
713
7/17/18
0.47mg
Data Logger
986
4/12/18
0.21°F
Scale
1134
7/17/18
+ 30g
Timer
646
4/10/18
+0.3 sec
Timer
1213
4/10/18
+0.3 sec
Flow Meter
1413
7/31/18
+ 17mL/min
Flow Meter
1414
7/31/18
+ 17mL/min
Barometer 1420 4/19/18
0.069.6°F, 0.51%
RH, 0.011 in Hg
DGM
1210
6/29/18
0.009925 ft3
SECTION 6
LIST OF OFFICIAL OBSERVERS
NAME
COMPANY
Ken Slater
Intertek B&C
SECTION 7
TEST PROCEDURE
On 3/1/18, the unit was tested for EPA emissions. For pellet stoves, the test was conducted in
accordance with ASTM E2779-10. The fuel used for the test run was premium-Grade Pellets
(Marthwood).
The applicable EPA regulatory limits are:
Step 1 – 2015 – 4.5 grams per hour.
Step 2 – 2020 – 2.0 grams per hour.

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Date: 06/14/22
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TEST SET-UP DESCRIPTON
A 3” horizontal flue is connected by a 90° elbow and adapters to a standard 6” diameter vertical
single wall pipe and insulated chimney system was installed to 15’ above floor level. The singe
wall pipe extended to 8 feet above the floor and insulated chimney extended the remaining
height.
AIR SUPPLY SYSTEM
Combustion air enters a 2” inlet pipe located on the back of the heater, which is directed to the
pellet burn pot. All gases exit through the 3” flue also located at the back of the heater. The
exhaust gases are assisted by a combustion blower.
TEST FUEL PROPERTIES
Wood pellets used for the testing were manufactured by Marthwood, which are certified
Premium by PFI and contain oak and maple wood. The pellets have a measured heating value of
8528 Btu/hr (19836 kJ/kg) and a moisture content of 3.0% on a dry basis and 3.1% on a wet
basis.
SAMPLING LOCATIONS
Particulate samples are collected from the dilution tunnel at a point 20 feet from the tunnel
entrance. The tunnel has two elbows and two mixing baffles in the system ahead of the
sampling section. (See Figure 3.) The sampling section is a continuous 13 foot section of 6 inch
diameter pipe straight over its entire length. Tunnel velocity pressure is determined by a
standard Pitot tube located 60 inches from the beginning of the sampling section. The dry bulb
thermocouple is located six inches downstream from the Pitot tube. Tunnel samplers are
located 60 inches downstream of the Pitot tube and 36 inches upstream from the end of this
section. (See Figure 1.)
Stack gas samples are collected from the steel chimney section 8 feet ± 6 inches above the scale
platform. (See Figure 2.)

8431 Murphy Drive
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
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FIGURE 1 – DILUTION TUNNEL
FIGURE 2 – STACK GAS SAMPLE TRAIN

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FIGURE 3 – DILUTION TUNNEL SAMPLE SYSTEMS
SAMPLING METHODS
PARTICULATE SAMPLING
Particulates were sampled in strict accordance with ASTM E2515-2011. This method uses two
identical sampling systems with Gelman A/E 61631 binder free, 47-mm diameter filters. The
dryers used in the sample systems are filled with “Drierite” before each test run. In order to
measure first-hour emissions rates the a third filter set is prepared at one hour into the test run,
the filter sets are changed in one of the two sample trains. The two filter sets used for this train
are analyzed individually to determine the first hour and total emissions rate.
Figure 3

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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
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Date: 06/14/22
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INSTRUMENT CALIBRATION
DRY GAS METERS
At the conclusion of each test program the dry gas meters are checked against our standard dry
gas meter. Three runs are made on each dry gas meter used during the test program. The
average calibration factors obtained are then compared with the six-month calibration factor
and, if within 5%, the six-month factor is used to calculate standard volumes. Results of this
calibration are contained in Appendix D.
An integral part of the post test calibration procedure is a leak check of the pressure side by
plugging the system exhaust and pressurizing the system to 10” W.C. The system is judged to be
leak free if it retains the pressure for at least 10 minutes.
The standard dry gas meter is calibrated every 6 months using a Spirometer designed by the EPA
Emissions Measurement Branch. The process involves sampling the train operation for 1 cubic
foot of volume. With readings made to .001 ft3, the resolution is .1%, giving an accuracy higher
than the ±2% required by the standard.
STACK SAMPLE ROTAMETER
The stack sample rotometer is checked by running three tests at each flow rate used during the
test program. The flow rate is checked by running the rotometer in series with one of the dry
gas meters for 10 minutes with the rotometer at a constant setting. The dry gas meter volume
measured is then corrected to standard temperature and pressure conditions. The flow rate
determined is then used to calculate actual sampled volumes.
GAS ANALYZERS
The continuous analyzers are zeroed and spanned before each test with appropriate gases. A
mid-scale multi-component calibration gas is then analyzed (values are recorded). At the
conclusion of a test, the instruments are checked again with zero, span and calibration gases
(values are recorded only). The drift in each meter is then calculated and must not exceed 5% of
the scale used for the test.
At the conclusion of each unit test program, a three-point calibration check is made. This
calibration check must meet accuracy requirements of the applicable standards. Consistent
deviations between analyzer readings and calibration gas concentrations are used to correct
data before computer processing. Data is also corrected for interferences as prescribed by the
instrument manufacturer’s instructions.

8431 Murphy Drive
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Telephone: [phone]
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
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Date: 06/14/22
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TEST METHOD PROCEDURES
LEAK CHECK PROCEDURES
Before and after each test, each sample train is tested for leaks. Leakage rates are measured
and must not exceed 0.02 CFM or 4% of the sampling rate. Leak checks are performed checking
the entire sampling train, not just the dry gas meters. Pre-test and post-test leak checks are
conducted with a vacuum of 10 inches of mercury. Vacuum is monitored during each test and
the highest vacuum reached is then used for the post test vacuum value. If leakage limits are
not met, the test run is rejected. During, these tests the vacuum was typically less than 2 inches
of mercury. Thus, leakage rates reported are expected to be much higher than actual leakage
during the tests.
TUNNEL VELOCITY/FLOW MEASUREMENT
The tunnel velocity is calculated from a center point Pitot tube signal multiplied by an
adjustment factor. This factor is determined by a traverse of the tunnel as prescribed in EPA
Method 1. Final tunnel velocities and flow rates are calculated from EPA Method 2, Equation
6.9 and 6.10. (Tunnel cross sectional area is the average from both lines of traverse.)
Pitot tubes are cleaned before each test and leak checks are conducted after each test.
PM SAMPLING PROPORTIONALITY
Proportionality was calculated in accordance with ASTM E2515-11. The data and results are
included in Appendix C.
DEVIATIONS FROM STANDARD METHOD:
SECTION 8
TEST CALCULATIONS
WEIGHT OF TEST FUEL BURNED (DRY) – ASTM E2779
MBdb = (MSwb – MEwb)(100/(100 + FM))
where:
FM = average fuel moisture of test fuel, % dry basis,
MSwb = weight of test fuel in hopper at start of test run, wet basis, kg (lb),
MEwb = weight of test fuel in hopper at end of test run, wet basis, kg (lb), and
MBdb = weight of test fuel burned during test run, dry basis, kg (lb).

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Middleton, WI 53562
Telephone: [phone]
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WEIGHT OF TEST FUEL BURNED PER TEST SEGMENT (DRY) – ASTM E2779
MBSidb = (MSSiwb – MESiwb) (100/(100 + FM))
where:
MSSiwb = weight of test fuel in hopper at start of test run segment i, wet basis, kg (lb),
MESiwb = weight of test fuel in hopper at end of test run segment i, wet basis, kg (lb),
MBSidb = weight of test fuel burned during test run segment i, dry basis, kg (lb), and
i= test run segments in accordance with 9.4, Table 1.
AVERAGE BURN RATE FOR FULL TEST (DRY) – ASTM E2779
BR = 60 MBdb/θ
where:
BR = average dry burn rate over the full integrated test run, kg/h (lb/h), and
θ= total length of full integrated test run, min.
AVERAGE BURN RATE PER TEST SEGMENT (DRY) – ASTM E2779
BRSi = 60 MBSidb/ θSi
where:
BRSi = average dry burn rate over test run segment i, kg/h (lb/h), and
θSi = total length of test run segment i, min.
AVERAGE EMISSION RATE FOR FULL TEST (g/hr) – ASTM E2779
PMR= 60(ET/θ)
where:
ET= total particulate emissions for full integrated test run measured using Test Method
E2515, g (lb),
θ= total length of test run, min, and
PMR= average particulate emission rate over the full integrated test run, g/h.
AVERAGE EMISSION FACTOR FOR FULL TEST (g/kg dry) – ASTM E2779
PMF= ET/MBdb
where:
PMF= average particulate emission factor over the full integrated test run, g/dry kg of fuel
burned.

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AVERAGE EMISSIONS FOR FULL TEST (g/MJ or lb/MMBtu) – ASTM E2779
PMH= ET/EO
where:
EO= average measured overall heat output over the full integrated test run from Annex A1,
MJ (MMBTU), and
PMH= average particulate emissions in accordance with unit of average heat output over the
full integrated test run, g/MJ (lb/MMBtu).
NOMENCLATURE FOR ASTM E2515:
A = Cross-sectional area of tunnel m2 (ft2).
Bws = Water vapor in the gas stream, proportion by volume (assumed to be 0.02 (2.0 %)).
Cp= Pitot tube coefficient, dimensionless (assigned a value of 0.99).
cr= Concentration of particulate matter room air, dry basis, corrected to standard
conditions, g/dscm (gr/ dscf) (mg/dscf).
cs = Concentration of particulate matter in tunnel gas, dry basis, corrected to standard
conditions, g/dscm (gr/dscf) (mg/dscf).
ET = Total particulate emissions, g.
Fp = Adjustment factor for center of tunnel pitot tube placement.
Fp= Vstrav/Vscent
KP= Pitot Tube Constant, 34.97 
 [󰇡
󰇢( )
()( )]

or
= Pitot Tube Constant, 85.49 
 [󰇡
󰇢( )
()( )]

La= Maximum acceptable leakage rate for either a pretest or post-test leak- check, equal
to 0.0003 m3/min (0.010 cfm) or 4 % of the average sampling rate, whichever is less.
Lp= Leakage rate observed during the post-test leak-check, m3/min (cfm).
mp= mass of particulate from probe, mg.
mf= mass of particulate from filters, mg.
mg= mass of particulate from filter gaskets, mg.
mr= mass of particulate from the filter, filter gasket, and probe assembly from the room air
blank filter holder assembly, mg.
mn= Total amount of particulate matter collected, mg.
Ms= the dilution tunnel dry gas molecular weight (may be assumed to be 29 g/g mole (lb/lb
mole).
Pbar = Barometric pressure at the sampling site, mm Hg (in. Hg).
Pg= Static Pressure in the tunnel (in. water).
PR= Percent of proportional sampling rate.
Ps= Absolute average gas static pressure in dilution tunnel, mm Hg (in. Hg).
Pstd = Standard absolute pressure, 760 mm Hg (29.92 in. Hg).
Qstd = Average gas flow rate in dilution tunnel.

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Qstd = 60 (1 - Bws) VsA [Tstd Ps/TsPstd]
dscm/min (dscf/min).
Tm= Absolute average dry gas meter temperature, K (R).
Tmi = Absolute average dry gas meter temperature during each 10-min interval, i, of the test
run.
Tmi = (Tmi(b)+ Tmi(e))/2
where:
Tmi(b) = Absolute dry gas meter temperature at the beginning of each 10-min test interval, i, of
the test run, K (R), and
Tmi(e) = Absolute dry gas meter temperature at the end of each 10-min test interval, i, of the
test run, K (R).
Ts = Absolute average gas temperature in the dilution tunnel, K (R).
Tsi = Absolute average gas temperature in the dilution tunnel during each 10-min interval, i,
of the test run, K (R).
Tsi = (Tsi(b) + Tm=si(e))/2
where:
Tsi(b) = Absolute gas temperature in the dilution tunnel at the beginning of each 10-min test
interval, i, of the test run, K (R), and
Tsi(e) = Absolute gas temperature in the dilution tunnel at the end of each 10-min test
interval, i, of the test run, K (R).
Vm= Volume of gas sample as measured by dry gas meter, dcm (dcf).
Vmc = Volume of gas sampled corrected for the post test leak rate, dcm (dcf).
Vmi = Volume of gas sample as measured by dry gas meter during each 10-min interval, i, of
the test run, dcm.
Vm(std) = Volume of gas sample measured by the dry gas meter, corrected to standard
conditions.
Vm(std) = K1Vm Y [(Pbar + (ΔH/13.6))/Tm]
where:
K1= 0.3855 K/mm Hg for SI units and = 17.64 R/in. Hg for inch-pound units.
Vm(std) = K1Vmc Y [(Pbar + (ΔH/13.6))/Tm]
where:
Vmc = Vm– (Lp– La)u
Vmr = Volume of room air sample as measured by dry gas meter, dcm (dcf), and
Vmr(std) = Volume of room air sample measured by the dry gas meter, corrected to standard
conditions.
Vm(std) = K1Vmr Y [(Pbar + (ΔH/13.6))/Tm]
Where:
K1= 0.3855 K/mm Hg for SI units and = 17.64 R/in. Hg for inch-pound units, and
Vs= Average gas velocity in the dilution tunnel.
Vs= Fp Kp Cp(√ΔPavg)(√(Ts/PsMs))

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Vsi = Average gas velocity in dilution tunnel during each 10-min interval, i, of the test run.
Vsi = Fp Kp Cp(√ΔPi)(√(Tsi/PsMs))
Vscent = Average gas velocity at the center of the dilution tunnel calculated after the Pitot tube
traverse.
Vstrav = Average gas velocity calculated after the multipoint Pitot traverse.
Y = Dry gas meter calibration factor.
ΔH = Average pressure at the outlet of the dry gas meter or the average differential
pressure across the orifice meter, if used, mm water (in. water).
ΔPavg = Average velocity pressure in the dilution tunnel, mm water (in. water).
ΔPi= Velocity pressure in the dilution tunnel as measured with the Pitot tube during each
10-min interval, i, of the test run.
ΔPi= (ΔPi(b) + ΔPi(e))/2
where:
ΔPi(b) = Velocity pressure in the dilution tunnel as measured with the Pitot tube at the
beginning of each 10-min interval, i, of the test run, mm water (in. water), and
ΔPi(e) = Velocity pressure in the dilution tunnel as measured with the Pitot tube at the end of
each 10-min interval, i, of the test run, mm water (in. water).
θ= Total sampling time, min.
10 = ten min, length of first sampling period.
13.6 = Specific gravity of mercury.
100 = Conversion to percent.
TOTAL PARTICULATE WEIGHT – ASTM E2515
Mn= mp+ mf+ mg
PARTICULATE CONCENTRATION – ASTM E2515
Cs= K2(mn/Vm(std)) g/dscm (g/dscf)
where:
K2= 0.001 g/mg
TOTAL PARTICULATE EMISSIONS (g) – ASTM E2515
ET= (Cs– Cr)Qstdθ
PROPORTIONAL RATE VARIATION (%) – ASTM E2515
PR = [θ(Vmi VsTm Tsi)/(10(VmVsi TsTmi)] x 100
MEASUREMENT OF UNCERTAINTY – ASTM E2515
MUweighing = √0.12• X

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Date: 06/14/22
Version: 05/10/17 Page 14 of 22 GFT-OP-10c
GENERAL FORMULA – ASTM E2515
uY = √((δY/δx1) x u1)2+ … + ((δY/δxn) x un)2
Where:
δY/δxi= Partial derivative of the combining formula with respect to individual measurement xi,
ui= is the uncertainty associated with that measurement.
TOTAL PARTICULATE EMISSIONS – ASTM E2515
ET= (cs– cr) Qstd θ
where:
cs= sample filter catch/(sample flow rate x test duration), g/dscf,
cr = room background filter catch/(sample flow x sampling time), g/dscf,
Qstd = average dilution tunnel flow rate, dscf/min, and
θ= sampling time, minutes.
MU OF cs
cs= Fc/(Qsample x θ) = 0.025/(0.25 x 180) = 0.0005555
δcs/δFc= 1/Qsample • Θ = 1/0.25 • 180 = 0.0222
δcs/δQsample = -Fc/Q2sample • Θ = -0.025/0.252• 180 = -0.00222
δcs/δΘ = -Fc/Qsample • Θ2= -0.025/0.25 • 1802= -0.000003
MUcs= √(0.00027 • 0.0222)2+ (0.0025 • - 0.00222)2
√ + (0.1 • - 0.000003)2= 0.0000091g
Thus, cswould be 0.555 mg/dscf ± 0.0081 mg/dscf at 95% confidence level.
MU OF cr
cr= BGc/(QBG x θ) = 0.002/(0.15 x 180) = 0.000074
δcr/δBGc= 1/QBG • Θ = 1/0.15 • 180 = 0.03704
δcr/δQBG = -BGc/Q2BG • Θ = -0.002/0.152• 180 = -0.0004938
δcr/δΘ = -BGc/QBG • Θ2= -0.002/0.15 • 1802= -0.0000004
MUcr= √(0.00027 • 0.03704)2+ (0.0015 • - 0.0004938)2
√ + (0.1 • - 0.0000004)2= 0.00001g
Thus, crwould be 0.074 mg/dscf ± 0.01 mg/dscf at 95% confidence level.
ETAND MUET
ET= (cs– cr) Qsd θ= (0.000555 - 0.000074) x 150 x 180 = 13.00g
δET/δcs= Qstd • Θ = 150 • 180 = 27,000
δET/δcr= Qstd • Θ = 150 • 180 = 27,000
δET/δQstd = cs• Θ – cr• Θ = 0.000555 • 180 – 0.000074 • 180 = 0.08667
δET/δΘ = cs• Qstd – cr• Qstd = 0.000555 • 180 – 0.000074 • 180 = 0.07222
MUET = √(27,000 • 0.0000081)2+ (27,000 • 0.00001)2(0.08667 • 3)2
√ + (0.07222 • 0.1)2= 0.436

8431 Murphy Drive
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
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Version: 05/10/17 Page 15 of 22 GFT-OP-10c
Thus the result in this example would be:
ET = 13.00g ± 0.44 g at a 95% confidence level.
EFFICIENCY – CSA B415.1
The change in enthalpy of the circulating air shall be calculated using the moisture content and
temperature rise of the circulating air, as follows:
Δh = Δt (1.006 + 1.84x)
Where:
Δh = change in enthalpy, kJ/kg
Δt = temperature rise, °C
1.006 = specific heat of air, kJ/kg °C
1.84 = specific heat of water vapor, kJ/kg °C
x = humidity ratio, kg/kg
The equivalent duct diameter shall be calculated as follows:
ED = 2HW/H+W
Where:
ED = equivalent duct diameter
H = duct height, m
W = duct width, m
The air flow velocity shall be calculated as follows:
V = Fpx Cpx 34.97 x √T/28.56(Pbaro + Ps)
where
V = velocity, m/s
FP= Pitot tube calibration factor determined from vane anemometer measurements
CP= Pitot factor
= 0.99 for a standard Pitot tube or as determined by calibration for a Type S Pitot tube
34.97 = Pitot tube constant
Note: The Pitot tube constant is determined on the basis of the following units:
m/s[g/g mole (mm Hg)/(K)(mm H2O)]0.5
ΔP = velocity pressure, mm H2O
T = temperature, K
28.56 = molecular weight of air
PBaro = barometric pressure, mm Hg
Ps= duct static pressure, mm Hg

8431 Murphy Drive
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
Report No.: 103348206MID-001BR2
Date: 06/14/22
Version: 05/10/17 Page 16 of 22 GFT-OP-10c
The mass flow rate shall be calculated as follows:
m = 3600VAp
where:
m = mass flow rate, kg/h
V = air flow velocity, m/s
3600 = number of seconds per hour
A = duct cross-sectional area, m2
p = density of air at standard temperature and pressure (use 1.204 kg/m3)
The rate of heat release into the circulating air shall be calculated using the air flow and change
in enthalpy, as follows:
Δe = Δh × m
Where:
Δe = rate of heat release into the circulating air, kJ/h
Δh = change in enthalpy of the circulating air, kJ/kg
m = mass air flow rate, kg/h
The heat output over any time interval shall be calculated as the sum of the heat released over
each measurement time interval, as follows:
Et= ∑(Δe × i) for i= t1to t2
Where:
Et = delivered heat output over any time interval t2–t1, kJ
i = time interval for each measurement, h
The average heat output rate over any time interval shall be calculated as follows:
et= Et /t
where
et= average heat output, kJ/h
t = time interval over which the average output is desired, h
The total heat output during the burn shall be calculated as the sum of all the heat outputs over
each time interval, as follows:
Ed= ∑(Et) for t = t0to tfinal
Where:
Ed= heat output over a burn, kJ/h (Btu/h)
Et= heat output during each time interval, kJ/h (Btu/h)

8431 Murphy Drive
Middleton, WI 53562
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
Report No.: 103348206MID-001BR2
Date: 06/14/22
Version: 05/10/17 Page 17 of 22 GFT-OP-10c
The efficiency shall be calculated as the total heat output divided by the total energy input,
expressed as a percentage as follows:
Efficiency, % = 100 × Ed/I
Where:
Ed= total heat output of the appliance over the test period, kJ/kg
I = input energy (fuel calorific value as-fired times weight of fuel charge), kJ/kg (Btu/lb)
SECTION 9
TEST SPECIMEN DESCRIPTION
The model 25-CAB80 Pellet Fuel Room Heater is constructed of sheet steel. The outer
dimensions are 2.35-inches deep, 38.5-inches high, and 23.5-inches wide. The unit has a door
located on the front with a viewing glass.
SECTION 10
TEST RESULTS
DESCRIPTION OF TEST RUNS:
RUN #1 (3/1/18): The test for pellet heaters is a continuous test with three separate burn rates.
At 6:37am the unit was started and operated for a minimum of 1 hour for the pretest operation.
At 8:22am the unit was set to the maximum feed rate (level M9) with a burn rate of 1.68 kg/hr,
the scale was tared and a 25-lb weight was added to the scale to determine feed rate of the
fuel, and the sampling system was started. At 9:22am, the system #3 sampling filter was
changed out and the unit was set to ≤50% feed rate (level M2) with a burn rate of 1.18 kg/hr. At
11:22am, the heater was changed to the minimum feed rate (level M1) with a burn rate of 1.04
kg/hr. At 2:22pm, testing was completed. The total burn time was 360 minutes.
The test run has been found to be appropriate, with no anomalies, and the test run has been
validated and is deemed compliant. No negative weight was found on the filters, as the filters
and gaskets are weighed together to eliminate filter material transfer to gaskets. All weightings
were handled property, with no negative weight on gaskets or probes.
No attempt was made to collect the ambient background particulate during testing. Any
collection that would have been made, would subtract from the particulate collected in the
dilution tunnel. The particulate collected in the dilution tunnel has been deemed worst case.

8431 Murphy Drive
Middleton, WI 53562
Telephone: [phone]
Facsimile: 608-831-9279
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TEST REPORT FOR ENGLAND STOVE WORKS, INC.
Report No.: 103348206MID-001BR2
Date: 06/14/22
Version: 05/10/17 Page 18 of 22 GFT-OP-10c
With the maximum burn rate at 1.68 kg/hr and the minimum burn rate at 1.04 kg/hr, this heater
cannot achieve the required ≤50% of the maximum burn rate at the medium burn setting. The
EPA letter issued on February 2, 2022, is being implemented to determine the required medium
burn rate. The medium burn rate is determined by adding the maximum burn rate and the
minimum burn rate and dividing by 2 [(1.68 + 1.04)/2=1.36 kg/hr]. This heater was operated at
a level 2 setting to achieve a burn rate of 1.18 kg/hr, which is less than the required 1.36 kg/hr
and complies with this requirement.
TABLE 1 – EMISSIONS
RUN#
TEST
DATE
BURN RATES
(kg/hr)(Dry)
PARTICULATE
EMISSION
RATE (g/hr)
1st HOUR
EMISSIONS
(g)
CO EMISSIONS
(g/min)
HEATING
EFFICIENCY
(%HHV)
1 3/1/18
H*
1.63
1.130 1.36 0.029 64.1
M*
1.14
L*
1.01
OA*
1.16
*Notes: H= High burn rate, M= Medium burn rate, L= low burn rate, OA= overall burn rate.
TABLE 2 – TEST FACILITY CONDITIONS
RUN
#
ROOM
TEMP
BEFORE
(°F)
ROOM
TEMP
AFTER
(°F)
BARO
PRES
BEFORE
(in/Hg)
BARO
PRES
AFTER
(in/Hg)
R. H.
BEFORE
(%)
R. H.
AFTER
(%)
AIR VEL
BEFORE
(ft/min)
AIR VEL
AFTER
(ft/min)
1
71
69
28.93
29.03
28.0
23.0
0
0
TABLE 3 – DILUTION TUNNEL FLOW RATE MEASUREMENTS AND SAMPLING DATA
RUN
#
BURN
TIME
(min)
VELOCITY
(ft/sec)
VOLUMETRIC
FLOW RATE
(dscf/min)
AVG TEMP
(°R)
SAMPLE
VOLUME (dscf)
PARTICULATE
CATCH (mg)
1
2
1
2
1
360
21.10
225.93
550.95
81.66
81.52
6.70
6.90
TABLE 4 - DILUTION TUNNEL DUAL TRAIN PRECISION
RUN
#
SAMPLE RATIOS
TOTAL EMISSIONS (g)
DEVIATION (%)
DEVIATION (g/kg)
TRAIN 1
TRAIN 2
TRAIN 1
TRAIN 2
1
996.00
997.72
6.67
6.88
1.56
0.029