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# Test Report

Eastern Research Group

Wood

- Fired Hydronic Heater

Model: Central Boiler E1400

Prepared for: Eastern Research Group

14555 Avion Parkway, Suite 200 Chantilly, VA 20151

Prepared by: OMNI

- Test Laboratories, Inc.

133 27 NE Airport Way Portland, OR 97230 (503) 643

- 3788

Test Period: October 3

- 25, 2011

Report Date: November 2011

Report Number: 488

- O

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All data and information contained in this report are confidential and proprietary to Eas tern Research Group . Its significance is subject to the adequacy and representative character of the samples and to the comprehensiveness of the tests, examinations, or surveys made. The contents of this report cannot be copied or quoted, except in full, without specific, written authorization from Eastern Research Group and OMNI

- Test Laboratories, Inc. No use of the
OMNI

- Test Laboratories, Inc. name, logo, or registered mark (O

- TL) is permitted, except as expressly authorized by OMNI

- Test Laboratories, Inc. in writing.Model: Central Boiler E1400

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# AUTHORIZED SIGNATORIES

This report has been reviewed and approved by the following authorized signatories:

James Weston, President

OMNI

- Test Laboratories, Inc.

Sebastian Button, Emissions Testing Manager

OMNI

- T est Laboratories, Inc.

Aaron Kravitz, Emissions Testing Technician

OMNI

- Test Laboratories, Inc.Model: Central Boiler E1400

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## TABLE OF CONTENTS

PREFACE

................................ ................................ ................................ ................................ ........ (4 pages)

1. INTRODUCTION/ TEST PHOTOGRAPHS

................................ ................................ ...... 1

- 1 ( 1 1 pages)
Introduction

................................ ................................ ................................ ................................ ... 1

- 2 Photographs

................................ ................................ ................................ ................................ .. 1

- 4

2

. TEST DATA BY RUN

................................ ................................ ................................ ..... 2

- 1 ( 113 pages)
OAK CORD WOOD TESTS

................................ ................................ ................................ ........ 2

- 2
Run 1

................................ ................................ ................................ ................................ ...... 2

- 5
Run 2

................................ ................................ ................................ ................................ .... 2

- 13
Run 3

................................ ................................ ................................ ................................ .... 2

- 16
Run 4

................................ ................................ ................................ ................................ .... 2

- 25
DOUGLAS FIR CORD WOOD TESTS

................................ ................................ .................... 2

- 28
Run 5

................................ ................................ ................................ ................................ .... 2

- 31

Run 6

................................ ................................ ................................ ................................ .... 2

- 34

Run 7

................................ ................................ ................................ ................................ .... 2

- 43
Run 8

................................ ................................ ................................ ................................ .... 2

- 51

Run 9

................................ ................................ ................................ ................................ .... 2

- 61
Run 14

................................ ................................ ................................ ................................ .. 2

- 64
Run 15

................................ ................................ ................................ ................................ .. 2

- 67
DOUGLAS FIR CRIBS TESTS

................................ ................................ ................................ . 2

- 76
Run 10

................................ ................................ ................................ ................................ .. 2

- 79
Run 11

................................ ................................ ................................ ................................ .. 2

- 87
Run 12

................................ ................................ ................................ ................................ .. 2

- 96
Run 13

................................ ................................ ................................ ................................ 2

- 105

3

. TESTING PROCEDURES A ND RESULTS

................................ ................................ ..... 3

- 1 ( 10 pages) Summary Tables
OAK CORD WOOD TESTS
Table 1a

– Oak Cord Wood Data (Runs 1

- 4)

................................ ................................ ......... 3

- 2
Table 1b

– Oak Cord Wood Emissions Data (Runs 1

- 4)

................................ ....................... 3

- 3
Table 1c

– Oak Cord Wood Year

- Round Use Weighting (Runs 1

- 4)

................................ .... 3

- 3
DOUGLAS FIR CORD WOOD TESTS
Table 2 a

– Douglas Fir Cord Wood Data (Runs 5

- 9, 14

- 15)

................................ ................. 3

- 4
Table 2 b

– Douglas Fir Cord Wood Emissions Data (Runs 5

- 9, 14

- 15)

................................ 3

- 5
Table 2c

– Douglas Fir Cord Wood Year

- Ro und Use Weighting (Runs 5

- 9, 14

- 15)

............ 3

- 5
Table 2d

– Douglas Fir Cord Wood Hangtag

................................ ................................ ......... 3

- 6
DOUGLAS FIR CRIBS TESTS
Table 3 a

– Douglas Fir Cribs Data (Runs 10

- 13)

................................ ................................ ... 3

- 7
Table 3 b

– Douglas Fir Cribs Emissions Data (Runs 10

- 13)

................................ ................. 3

- 8
Table 3c

– Douglas Fir Cribs Y ear

- Round Use Weighting (Runs 10

- 13)

.............................. 3

- 8
Table 3d

– Douglas Fir Cribs Hangtag

................................ ................................ ................... 3

- 9

Test Results and Discussion

................................ ................................ ................................ ........ 3

- 10Model: Central Boiler E1400

Eastern Research Group 14555 Avion Parkway, Suite 200 Chantilly, VA 20151

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### 4. EXAMPLE CALCULATIONS

................................ ................................ ......................... 4

- 1 ( 35 pages)

Appendix A

– Quality Ass urance/Quality Control

................................ ................. A

- 1 (117 pages)

Appendix B

– Water Tempe rature Graphs

................................ ................................ . B

- 1 (6 pages)

Appendix C

– Stack Gas Concentration Graphs

................................ ....................... C

- 1 (11 pages)

Appendix D

– ERG Statement of Work

................................ ................................ .... D

- 1 (28 pages)Model: Central Bo iler E1400

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# Section 1

Introductio n/Test PhotographsModel: Central Bo iler E1400

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## INTRODUCTION

Eastern Research Group retained OMNI

- Test L aboratories, Inc. ( OMNI ) to perform emissions testing on the Central Boiler E1400 boiler using the EPA Method 28

- OWHH Test Standard. The purpose of the testing was to supplement existing data in the development of the new New Source Performance Standard ( NSPS). The testing took a variety of fueling options into account
to determine if Method 28

- OWHH should include the testing of softwood, which is currently the required fuel for resid ential wood stoves. Table 1 show the test matrix of fueling scenarios

t ested.

Scenario Number of

Test Runs Test Category Wood Type Fuel Configuration

A 1 Category 1 Douglas Fir Crib Wood

1 Category 2 Douglas Fir Crib Wood

1 Category 3 Douglas Fir Crib Wood

1 Category 4 Douglas Fir Crib Wood

B 1 Category 1 Douglas Fir Cord Wood

1 Category 2 Douglas Fir Cord Wood

1 Category 3 Douglas Fir Cord Wood

1 Category 4 Douglas Fir Cord Wood

C 1 Category 1 Oak Cord Wood

1 Category 2 Oak Cord Wood

1 Category 3 Oak Cord Wood

1 Category 4 Oak Cord Wood



## Table 1: Test Ma trix

The testing was performed at OMNI ’s testing facility in Portland, Oregon. OMNI representative s Sebastian Button, Jeremy Clark, and Aaron Kravitz conducted the testing and completed all testing by Oct ober 25, 2011

. Data were not collected but OMNI personnel did witness the aging

process.

The testing was performed using the most r ecent revision of the Method 28 WHH standard (dated June 30, 2011). However, there were some slight deviations from the method with regards to wood selection. Test scenar ios A and B required Douglas Fir, which is less dense than Oak. To account for this, a fuel loading density of 7 lbs/ft 3 

## for these two scenarios was used. Additionally, procuring oak cord wood within the specified moisture ra nge proved to be very
difficu lt; available wood supplies were either too dry or too wet. With direction from ERG,

OMNI selected partially seasoned (at least 6 months) wood, that had an average moisture of approximately 33%.Model: Central Bo iler E1400

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## The testing method used is composed of three distinc t aspects:

 Dilution Tunnel: Method 5G

- 3/ASTM E 2515

- 07.

 Efficiency: Uses entering and exiting water temperature differences along with measured flow rate to determine useful heat output.

 Operation: The appliance is brought to operating temperature before a dding the test fuel charge, providing for a hot

- to

- hot test cycle with measurements taken under constant heat draw conditions within pre

- determined ranges. There is no attempt to modulate heat demand to simulate an indoor thermostat cycling on and off in response to changes in the
indoor environment.

Four test categories are used within the “Operation” scope:

 Category I: Heat Output 15% Or Less of Manufacturer’s Rated Heat Output Capacity

 Category II: Heat Output 16 To 24% of Manufacturer’s Rated Heat Ou tput Capacity

 Category III: Heat Output 25 To 50% of Manufacturer’s Rated Heat Output Capacity

 Category IV: Manufacturer’s Rated Heat Output Capacity

This test report shall not be reproduced, except in full, without written approval from OMNI

. The test r esults presented herein apply only to the specific appliance tested.Model: Central Bo iler E1400

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# Eastern Research Group
Central Boiler E1400

Test Dates: October 3

- 25, 2011Model: Central Bo iler E1400

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# Section 2

Test Data by RunModel: Central Bo iler E1400

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# Runs 1

- 4: Oak Cord W ood Tests

Fire went out on R uns 2 and 4 (Category 1 and 2 , respectively)Model: Central Bo iler E1400

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# Run 1Model: Central Bo iler E1400

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# Run 2Model: Central Bo iler E1400

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# Run 3Model: Central Bo iler E1400

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# Run 4Model: Central Bo iler E1400

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# Runs 5

- 9, 14

- 15 : Douglas Fir Cord W ood Tests

Data files were corrupted for Runs 5 an d 9; R un 14 was set aside
due to a failed post

- test sample train leak check.Model: Central Bo iler E1400

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# Run 5Model: Central Bo iler E1400

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# Run 6Model: Central Bo iler E1400

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# Run 7Model: Central Bo iler E1400

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# Run 8Model: Central Bo iler E1400

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# Run 9Model: Central Bo iler E1400

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# Run 1 4Model: Central Bo iler E1400

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# Run 1 5Model: Central Bo iler E1400

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# Run s 10

- 13 : Dougla s Fir Crib TestsModel: Central Bo iler E1400

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# Run 1 0Model: Central Bo iler E1400

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# Run 1 1Model: Central Bo iler E1400

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# Run 12Model: Central Bo iler E1400

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# Run 1 3Model: Central Bo iler E1400

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# Section 3

Testing ResultsModel: Central Bo iler E1400

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## Table 1a

 Oak Cord W ood Data (Runs 1

- 4)

θ W fuel 

### MC ave 

### Q inLHV 

### Q inHHV 

### Q out

Category Run

No

. Load % Capacity Target

Load Actual

Load Actual Load Test Duration Wood Weight
As

- F ired Wood

Moisture Heat

Input (LHV) Heat

Input (HHV) Heat

Output

Btu/hr Btu/hr hrs lb % DB Btu Btu B tu % of max

I 2 < 15%

of max 0

–

12179 N/A N/A N/A N/A N/A N/A N/A N/A

II 4 16

- 24%

of max 12991

-

19487 NA N/A N/A N/A N/A N/A N/A N/A

III 3 25

- 50%

of max 20299

-

40598 32940 40% 13.63 13 7.0 3 3.08 82 2299 8 85299 4 49080

IV 1 Max

capacity N/A 81197 100.0% 5.57 138.3 33.24 829141 892665 451997Model: Central Bo iler E1400

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## Table 1b

 Oak Cord W ood Emissions Data (Runs 1

- 4)

T2 Min E T E E E g/hr E g/kg η del η delLHV η SLM

Category Run No

. Load % Capacity Min Return
Water Temp. Total PM

Emissions PM

Output
Based PM Output

Based PM

Rate PM

Factor Delivered

Efficiency LHV

Delivered Efficiency LHV

Stack
Loss Efficiency

°F g lb/MMBtu Out g/MJ g/hr g/kg % % %

I 2 < 15% of max N/A N/A N/A N/A N/A N/A N/A N/A N/A

II 4 16

- 24% of max N/A N/A N/A N/A N/A N/A N/A N/A N/A

III 3 25

- 50% of max 152.5 72.4 0.36 0 .15 5.3 1.5 50. 7 54. 6 75.7

IV 1 Max capacity 135.3 212.1 1.03 0.4 4 38.1 4.5 50.6 54.5 72.3



## Table 1c

 Oak Cord W ood Year

- Round Use Weighting (Runs 1

- 4)

Category Weighting Factor

(F i 

### ) η del,i 

### x

F i 

### E g/MJ,i 

### x

F i 

### E g/kg,i 

### x

F i 

### E lb/MMBtu Out,i 

### x

F i 

### E g/hr,i 

### x

F i


### I 0.437

- - - - -
II 0.238

- - - - -

III 0.275 12.1 0.04 0.37 0.08 1.26

IV 0.05 13.9 0.12 1.24 0.28 10.48

Totals 1

- - - - -Model: Central Bo iler E1400

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## Table 2a

 Douglas Fir Cord W ood Data (Runs 5

- 9 , 14

- 15)

θ W fuel 

### MC ave 

### Q inLHV 

### Q inHHV 

### Q out

Category Run

No

. Load % Capacity Target

Load Actual

Load Actual Load Test Duration Wood Weight
As

- F ired Wood

Moisture Heat

Input (LHV) Heat

Input (HHV) Heat

Output

Btu/hr Btu/hr hrs lb % DB Btu Btu Btu % of max

I 8 < 15%

of max 0

-

23211 18956 12.3% 17.25 97.3 19.86 648473 698156 326995

II 6 16

- 24%

of max 24759

–

37138 34217 22.1% 11.78 96.6 20.99 637792 686656 403188

III 15 25

- 50%

of max 38686

–

77372 61765 39.9% 7 .75 96.6 21.17 636845 685637 478677

IV 7 Max

capacity N/A 154743 100.0% 2.72 99.9 21.98 654226 704349 420386Model: Central Bo iler E1400

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## Table 2b

 Douglas Fir Cord W ood Emissions Data (Runs 5

- 9, 14

- 15)

T2 Min E T E E E g/hr E g/kg η del η delLHV η SLM

Category Run No

. Load % Capacity Min Return
Water Temp. Total PM

Emissions PM

Output
Based PM Output

Based PM

Rate PM

Factor Delivered

Efficiency LHV

Delivered Efficiency LHV

Stack
Loss Efficiency

°F g lb/MMBtu
Out g/MJ g/hr g/kg % % %

I 8 < 15% of max 146.7 113.6 0.77 0.33 6.6 3.1 46.8 50.4 50.8

II 6 16

- 24% of max 153.4 203.8 1.11 0.48 17.3 5.6 58.7 63.2 73.9

III 15 25

- 50% of max 141.6 114.7 0.53 0.23 14.8 3.2 69.8 75.2 79.6

IV 7 Max capacity 117.2 112.6 0.59 0.25 41.5 3.0 59.7 64.3 75.0



## Table 2c

 Douglas Fir Cord W ood Year

- Round Use Weighting (Runs 5

- 9, 14

- 15)

Category Weighting Factor

(F i 

### ) η del,i 

### x

F i 

### E g/MJ,i 

### x

F i 

### E g/kg,i 

### x

F i 

### E lb/MMBtu Out,i 

### x

F i 

### E g/hr,i 

### x

F i 

### I 0.437 20.5 0.14 1.35 0.33 2.88

II 0.238 14.0 0.11 1.34 0.27 4.12

III 0.275 19.2 0.06 0.87 0.15 4.07

IV 0.05 3.0 0.01 0.15 0.02 2.07

Totals 1 56.6 0.33 3.7 0.76 13.1Model: Central Bo iler E1400

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## Table 2 d

 Douglas Fir Cord W ood Hangtag

MANUFACTURER: N/A

MODEL NUMBER: N/A

8

- HOUR OUTPUT RATING: Q out

- 8hr 

### 60057 Btu/hr

8

- HOUR AVERAGE
EFFICIENCY: η avg

- 8hr 

### 69.1% (Using higher heating value)

74.4% (Using lower heating value)

ANNUAL EFFICIENCY RATING: ηavg 56.6% (Using higher heating value)

61.0% (Using lower heating value)

PARTICLE EMISSIONS: E avg 

### 13.1 GRAMS/HR (average)

0.77 LBS/MILLION Btu OUTPUTModel: Central Bo iler E1400

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## Table 3a

 Douglas Fir Cribs Data (Runs 10

- 13)

θ W fuel 

### MC ave 

### Q inLHV 

### Q inHHV 

### Q out

Category Run

No

. Load % Capacity Target

Load Actual

Load Actual Load Test Duration Wood Weight
As

- F ired Wood

Moisture Heat

Input (LHV) Heat

Input (HHV) Heat

Output

Btu/hr Btu/hr hrs lb % DB Btu Btu Btu % of max

I 11 < 15%

of max 0

–

25684 20068 11.7% 15.22 96.5 22.91 627177 675228 305368

II 13 16

- 24%

of max 27397

–

41095 35612 20.8% 12.45 102.6 22.52 668920 720169 443375

III 12 25

- 50%

of max 42807

–

85614 66358 3 8.8% 8.17 109.3 22.57 712290 766862 541920

IV 10 Max

capacity N/A 171228 100.0% 2.77 98.7 21.94 646560 696096 473732Model: Central Bo iler E1400

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## Table 3b

 Douglas Fir Cribs Emissions Data (Runs 10

- 13)

T2 Min E T E E E g/hr E g/kg η del η delLHV η SLM

Category Run No

. Load % Capacity Min Return
Water Temp. Total PM

Emissions PM

Output
Based PM Output

Based PM

Rate PM

Factor Delivered

Efficiency LHV

Delivered Efficiency LHV

Stack
Loss Efficiency

°F g lb/MMBtu
Out g/MJ g/hr g/kg % % %

I 11 < 15% of max 145.0 188.0 1.36 0.58 12.4 5.3 45.2 48.7 74.4

II 13 16

- 24% of max 128.3 136.5 0.68 0.29 11.0 3.6 61.6 66.3 66.1

III 12 25

- 50% of max 147.0 125.1 0.51 0.22 15.3 3.1 70.7 76.1 72.3

IV 10 Max capa city 113.9 114.7 0.53 0.23 41.5 3.1 68.1 73.3 76.1



## Table 3c

 Douglas Fir Cribs Year

- Round Use Weighting (Runs 10

- 13)

Category Weighting Factor

(F i 

### ) η del,i 

### x

F i 

### E g/MJ,i 

### x

F i 

### E g/kg,i 

### x

F i 

### E lb/MMBtu Out,i 

### x

F i 

### E g/hr,i 

### x

F i 

### I 0.437 19.8 0.26 2.31 0.59 5.40

II 0.238 14.7 0.07 0.86 0.16 2.61

III 0.275 19.4 0.06 0.85 0.14 4.21

IV 0.05 3.4 0.01 0.16 0.02 2.07

Totals 1 57.3 0.40 4.2 0.91 14.3Model: Central Bo iler E1400

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## Tabl e 3d

 Douglas Fir Cribs Hangtag

MANUFACTURER: N/A

MODEL NUMBER: N/A

8

- HOUR OUTPUT RATING: Q out

- 8hr 

### 69594 Btu/hr

8

- HOUR AVERAGE
EFFICIENCY: η avg

- 8hr 

### 70.6% (Using higher heating value)

76.0% (Using lower heating value)

ANNUAL EFFICIENCY RATING: ηavg 57.3% (Using higher heating value)

61.6% (Using lower heating value)

PARTICLE EMISSIONS: E avg 

### 14.3 GRAMS/HR (average)

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## TEST RESULTS AND DISCUSSION

A total of 15 test runs were performed on the Central Boiler E1400 boiler. T est runs for each fuel type (Oak cord wood, Douglas Fir cord wood, Douglas Fir cribs) were conducted in the following categories based on the manufacturer’s rated heat capacity: 15% or le ss of maximum capacity (category I); 16

- 24% of capacity (category II); 25

- 50% of capacity (category III); and manufacturer’s rated heat capacity (category IV). NOTES: During Oak cord wood testing, the fire went on Runs 2 and 4 (Categories I and II, respec tively). During Douglas Fir cord wood testing, the data files were corrupted for Runs 5 and 9, and Run 14 was thrown out due to the sample train failing the post

- test leak check.

Emissions (lb/mmbtu output)

Runs 5

- 9, 14

- 15 (Douglas Fir Cord W ood) Run s 10

- 13 (Douglas Fir Cribs)

Weighting High Heating Value

(8600 Btu) Low Heating Value

(7988 Btu) High Heating

Value (8600 Btu) Low Heating

Value (7988 Btu)

Heating Season 0.74 0.74 0.71 0.71

Year

- Round Use 0.77 0.77 0.92 0.92

For Douglas Fir cord woo d testing, the average Btu/hr for 8

- hour burn time was measured to be 60,057 Btu/hr . The average efficiencies for 8

- hour burn time were measured to be 69.1% (HHV) and 74.4% (LHV)

.

For Douglas Fir crib testing, t he average Btu/hr for 8

- hour burn time was measured to be 69,594
Btu/hr . The average efficiencies for 8

- hour burn time were measured to be 70.6 % (HHV) and 76.0% (LHV)

.

The precision and accuracy of the emissions and heating efficiency results presented in this report cannot be specified because o f the unmeasured variability of results that would occur between identical appliances and fueling protocols. It is estimated, using precision data from similar sampling and measurement methods, that the precision of the results presented in this
report ar e +/

- 10 to 12% of the emissions values and +/

- 3 to 4 percentage points of thermal efficiency.Model: Central Bo iler E1400

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# Section 4

Example CalculationsModel: Central Bo iler E1400

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# Appendix A

Quality Assurance/Quality ControlModel: Central Bo iler E1400

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## QUALITY ASSURANCE/QUALIT Y CONTROL

OMNI follows the guidelines of ISO/IEC 17025, “General Requirements for the Competence of Testing and Calibration Laboratories,” and the quality assurance/quality control (QA/QC) procedures found in OMNI ’s Quality Assurance Manual.

OMNI ’s scope of accreditation includes, but is not limited to, the following:

 ANSI (American National Standards Institute) for certification of product to safety
standards.

 To perform product safety testing by the International Accreditation Service, Inc. (formerly I CBO ES) under accreditation as a testing laboratory designated TL

- 130.

 To perform product safety testing as a “Certification Organization” by the Standards Council of Canada (SCC).

 Serving as a testing laboratory for the certification of wood heaters by th e U.S. Environmental Protection Agency.

This report is issued within the scope of OMNI ’s accreditation. Accreditation certificates are available upon request.

This report shall not be reproduced, except in full, without the written approval of OMNI

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# Sample Analysis

Analysis Worksheets
Tared Filter and Probe DataModel: Central Bo iler E1400

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# Calibrations

ID # Lab Name/Purpose Log Name Attachment Type

23 Scale Analytical Balance

– Mettler Instrument Calibration Certi ficate

131 500 mg Weight Standard Weight, 500 mg

– Ohaus Calibration Certificate

132 10 lb Weight Standard Weight, 10 lb Calibration Log

183 Moisture Meter Moisture Meter

– Delmhorst Manual

209 Barometer Barometer

– Princo Manual Cover

265 Vaneometer Vaneometer/Air Velocity Meter

– Calibration Log Calibration Log

289 Control Module Control Module

– Apex Calibration Logs

291 Hygrometer Digital Hygrometer/Thermometer

– Omega Calibration Certificate

353 Scale Small Platform Scale

– MTW Calibration Log

356 Scale Pro

- Dec Scale

– Weigh

- Tronix Manual Cover

371 Sampling Box Method 6 Source Sampler

– Apex Calibration Logs

372 Sampling Box Method 6 Source Sampler

– Apex Calibration Logs

410 Microtector Microtector

– Dwyer Manual

419 Gas Analyzer Infrared Gas Analyzer

– California Analytical
Instruments Manual Cover

436 Stopwatch Stopwatch

– Robic Calibration Log

513 Magmeter Low Flow Magmeter

– Omega Calibration Sheets
Thermopile 5

- Junction Type

- T T hermopile Schematic/AlgorithmModel: Central Bo iler E1400

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# Appendix B

Water Temperature GraphsModel: Central Bo iler E1400

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# Appendix C

Stack Gas Concentration GraphsModel: Central Bo iler E1400

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# Appendix D

ERG Statement of Work