Morsø 2b classic 2020 User manual

CERTIFICATION TEST REPORT

Report no.:

300-ELAB-2526-EPA Rev4 110821

Page 1 of 49

Init.: JSA/

Order no.: 946206

No. of appendices: 35

Requested by:

Company: Morsø Jernstøberi A/S

Address: Furvej 19

Postcode/town: DK-7900 Nykøbing Mors

Country: Denmark

Email: [email protected]

Web: www.morsoe.com

Product:

Wood heater type: Morsø 2B Classic 2020

Sample:

Receipt at DTI, Aarhus: 1. September 2020

Test period:

Date of testing: 2.-4. September 2020

Procedure

Testing of a wood heater in accordance with DTI method “ELAB-PP-BR-15” based on

a relevant selection of standards and methods:

ASTM E2515-11

Yes

ASTM E3053-17 (Cordwood)

Yes

US EPA Method 28R in combination with ASTM E2780-10 (Cribwood)

CSA B415.1-10

Yes

EPA Communication on alternative method for Cordwood testing

Yes

Result:

The stove/ meets the requirements of NSPS §40 CFR Part 60.

Remarks:

See paragraph 2 - Remarks.

Terms:

Accredited testing was carried out in compliance with international requirements, and the

general terms and conditions of The Danish Technological Institute. The test results apply to

the tested products only. This test report may be reproduced in extract only if the laboratory

has approved the extract in writing. Danish Technological Institute is an EU Notified Body with

identification number 1235 and DIN Certco test laboratory, PL 168.

Issued:

11. August 2021, Danish Technological Institute, Aarhus, Stoves&Boiler test lab

Signature:

Jes Sig Andersen Max Bjerrum

Senior Specialist Quality Assurance

Test reg. no. 300

Teknologiparken

Kongsvang Allé 29

DK-8000 Aarhus C

+45 72 20 20 00

[email protected]

www.dti.dk

Jes Sig Andersen

2021.08.11 11:06:34 +02'00'

Report No.: 300-ELAB-2526-EPA Rev4 110821 
Date: 11.08.2021 
Initials: JSA/ 
Page 2 of 49 
300-ELAB-2526-EPA Rev4 110821 
1. Introduction.........................................................................................................................4 
 General ...........................................................................................................................4 
 Report revision history overview .........................................................................................4 
 Revision 1 changes ...........................................................................................................4 
 Revision 2 changes ...........................................................................................................4 
 Revision 3 changes ...........................................................................................................4 
 Revision 4 changes ...........................................................................................................5 
 List of Issues found (ref. Sanzhez email of June 10. 2021).....................................................5 
 Scope of testing................................................................................................................8 
 Site.................................................................................................................................8 
 Participants ......................................................................................................................8 
DTI staff ..................................................................................................................................8 
Client staff ...............................................................................................................................8 
 Test specimen ..................................................................................................................8 
 Description of the wood heater ...........................................................................................9 
2. Aging prior to testing .......................................................................................................... 10 
3. Summary of test results......................................................................................................11 
 Test schedule ................................................................................................................. 11 
 Main results ................................................................................................................... 11 
 Summary of the CS+HF and LF tests the 02-09-2020.......................................................... 11 
 Duct traverse data 2. September 2020 ..............................................................................15 
 Summary of the CS+HF and MF tests the 03-09-2020.........................................................16 
 Duct traverse data the 3. September 2020......................................................................... 19 
 Summary of CS+HF test the 4-09-2020............................................................................. 20 
 Duct traverse data the 4. September 2020......................................................................... 22 
 Anomalies...................................................................................................................... 22 
4. High Fire net fuel consumption and burn rate calculations .......................................................23 
 Summary of test results .................................................................................................. 24 
 ADEC 18 AAC 50.077 Compliance (Fairbanks proof) ............................................................24 
 CSA HF1 PM report (#1) ..................................................................................................25 
 CSA HF1 CO, HO, EFF report (#1).....................................................................................26 
 CSA LF report (#2) ......................................................................................................... 27 
 CSA HF2 PM report (#3) ..................................................................................................28 
 CSA HF2 CO, HO, EFF report (#3).....................................................................................29 
 CSA MF report (#4)......................................................................................................... 30 
 CSA HF3 PM report (#5) ..................................................................................................31 
 CSA HF3 CO, HO, and EFF report (#5)............................................................................... 32 
 Weighted avg. calculation (LF#2, HF2#3, MF#4, HF3#5).....................................................33 
 Test facility conditions ..................................................................................................... 34 
 Fuel properties ............................................................................................................... 34 
 Summary of test fuel load properties................................................................................. 35 
5. Test accomplishment .......................................................................................................... 36 

Report No.: 300-ELAB-2526-EPA Rev4 110821 
Date: 11.08.2021 
Initials: JSA/ 
Page 3 of 49 
300-ELAB-2526-EPA Rev4 110821 
 Remarks ........................................................................................36 
 Start-up operation ..........................................................................36 
 Sampling arrangement ....................................................................................................36 
 Fluepipe and chimney configuration................................................................................... 37 
6. Sampling methods.............................................................................................................. 38 
 Particulate extraction system............................................................................................ 38 
 Calculation of PM emission ............................................................................................... 38 
7. Quality assurance............................................................................................................... 38 
 Instrument calibration .....................................................................................................38 
 Logger data.................................................................................................................... 38 
 Morsø’s Quality Assurance Plan......................................................................................... 38 
8. Documentation material ...................................................................................................... 39 
9. Remarks ........................................................................................................................... 40 
 Internal correction of gasmeters ....................................................................................... 40 
 Unitary DTI Cribwood and Cordwood spreadsheet ............................................................... 40 
 Request of restriction of the air valve action....................................................................... 40 
 Duplicated High fire calculations .......................................................................................40 
10. Discussion of Results .......................................................................................................... 40 
11. Main results....................................................................................................................... 41 
12. Test details........................................................................................................................42 
 Pre-conditioning.............................................................................................................. 42 
 Data, HF1 (#1) test run 2nd of September 2020..................................................................43 
 Data, LF (#2) test run 2nd of September 2020 .................................................................... 44 
 Data, HF2 (#3) test run 3rd of September 2020 .................................................................. 45 
 Data, MF (#4) test run 3rd of September 2020....................................................................46 
 Data, HF3 (#5) test run 4th of September 2020 .................................................................. 47 
13. Test equipment.................................................................................................................. 48 
14. Annexes............................................................................................................................ 49 
 
 

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

Page 4 of 49

300-ELAB-2526-EPA Rev4 110821

General

This report concerns testing of a free-standing cast iron wood heater, type Morsø 2B Classic 2020

The certification test report holds 35 annexes. From this 2. revision of the report, do not any longer

distinguish between CBI and non-CBI reports. The same unitary report applies for all purposes, meaning

only one version of the report is issued.

Please find the full list of annexes in chapter 14.

Figures are stated in European notation, with a comma as the decimal separator and period as the

thousand’s separator.

Report revision history overview

Release

Report number

Number of pages

(report only)

Issued date

initial

300-ELAB-2526-EPA (CBI and non-CBI)

45 (non-CBI)

18. Nov. 2020

Rev 1

300-ELAB-2526-EPA Rev 1 211221 (CBI

and non-CBI)

45 (non-CBI)

21. Jan. 2021

Rev 2

300-ELAB-2526-EPA Rev 2 220621

22. June 2021

Rev 3

300-ELAB-2526-EPA Rev 3 250621

25. June 2021

Rev 4

300-ELAB-2526-EPA Rev 4 110821

11. August 2021

Revision 1 changes

•New issue date 21. January 2021 and revision # raised to Rev 1

•Clause 3.5 amended with the laboratory’s declaration of test appropriateness, starting with “Based on the

evidence above”

•Clause 3.6 amended with the laboratory’s declaration of test appropriateness, starting with “Based on the

evidence above”

•Clause 3.8 amended with the laboratory’s declaration of test appropriateness, starting with “Based on the

evidence above”

•Annex 35; new annex holding the laboratory hand notes

Revision 2 changes

•New issue date 22. June 2021 and revision # raised to Rev 2

•Clause 1.1 General amended with notice of abandoning of distinguishing between a CBI and a non-CBI report.

Now one unitary report applies for all purposes.

•New clause 1.3 added, holding the EPA list of findings

•Clause 3.2, further elaboration of the reason for discarding of the HF1 test due to a clogged filter

•Clause 4.2, Note added on discarding of the HF1 results

•Report page count raised from 45 to 48

Revision 3 changes

•New issue date 25. June 2021 and revision # raised to Rev 3

•Clause 7.3, the test string “and the action of the air controls” was added

•Revised Annex 26, Assembly drawings showing in detail how the lower restriction of the air controls is

accomplished, notably drawing 2B-148 (Primary Air Controls) showing the bushing which stops the spinner

from being closed below three quarters of a turn. Further drawing 2B-511 (Main assy drawing) displaying an

explanatory note on the air controls extreme settings, the minimum being 0,75 turn which resembles an

effective open valve area of 212 sq mm.

•Revised annex 31a, US Users’ manual, on page 9 (printed manual pages 14-15) providing information in a

highlighted frame on the nature of the lower air controls restriction and a warning of NOT to tamper with the

physical stop.

•Revised annex 31b, CAN(Fr) Users’ manual, the same warning

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

Page 5 of 49

300-ELAB-2526-EPA Rev4 110821

•Revised annex 34, Manufacturers’ QA plan, showing on page 4 where and how to

check the action of the air controls, again emphasizing that the minimum primary air

controls setting is 0,75 turn corresponding to a gap between the spinner and the

door on approximately 1 mm

•Report page count raised from 48 to 49

Revision 4 changes

•New issue date 11. August 2021 and revision # raised to Rev 4

•New clause 1.3 added, describing the report changes from the initial (final) report to the Rev 1 report

•New clause 1.4 added, describing the report changes from the Rev 1 to the Rev 2 report

•New clause 1.5 added, describing the report changes from the Rev 2 to the Rev 3 report

•New clause 1.6 added, describing the report changes from the Rev 3 to the Rev 4 report

List of Issues found (ref. Sanzhez email of June 10. 2021)

List of Issues Found

Issue

Applicable

Method/Rule

Section

Notes

How the

manufacturer/test

lab addressed the

issue

Clause

# or

page #

where

to find

addres-

sing of

irregu-

larities

1. Page 32 "For

the low fire

test, after

ignition the

air valve is

throttled to 3

quarters of a

revolution

open, and for

the medium fire

test, after

ignition the air

valve is

throttled to 1

and one

quarter of a

revolution

open."

Need to document

that the stove cannot

burn any lower than the

¾ turn as described in

the low burn test.

See additional

notes below.

40 CFR 60.537

(2) All

documentation

pertaining to the

certification test

used to obtain

certification,

including the full

test report and raw

data sheets,

laboratory

technician notes,

calculations, the

test results for all

test runs, and

discussions of the

appropriateness

and validity of all

test runs, including

runs attempted but

not completed. The

retained

certification test

documentation

must include, as

applicable, detailed

discussion of all

anomalies,

whether all burn

Manual says

that the low

fire is fixed and

cannot be

adjusted

further.

This means

that it was

tested at the

lowest possible

burn rate. Is

that

assertion

correct?

Need

clarification in

the TR about

the ¾ turn for

the low burn

setting.

There is a fixed stop in

place on production models

that prevents the air

controls from being closed

more that as tested (3/4 of

turn), which results in a

linear measurement of

1mm between the spinner

and the frame. The

appliance cannot be turned

any lower down than what

was tested. This restriction

is shown in detail in

drawing 2B-148, page 7 of

annex 26 (assembly

drawings) and further in

drawing 2B-511, page 2 of

annex 26

(reply clarified the 21/6

2021 by JSA)

Annex 26

(assembly

drawings),

page 2, the

main assy

drawing 2B-

511 and on

page 7,

primary air

controls

assy,

drawing 2B-

148

(21/6 JSA)

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

Page 6 of 49

300-ELAB-2526-EPA Rev4 110821

rate categories

were properly

achieved, any data

not used in the

calculations and,

for any test runs

not completed, the

data that were

collected and the

reason that the

test run was not

completed. The

retained

certification test

also must include

documentation

that the burn

rate for the low

burn rate

category was no

greater than the

rate that an

operator can

achieve in home

use and no

greater than is

advertised by the

manufacturer or

retailer.

2. Page 36,

Discussion of

Results doesn't

document run

appropriateness

The basis for

determining

whether or not

the appliance has

complied with

this requirement

is based on 40

CFR

60.533(b)(5).

Per the

requirement,

"Documentation

must include

discussion of

each test run and

its

appropriateness

and validity, and

must include

detailed

discussion of all

anomalies,

whether all burn

rate categories

were achieved,

any data not

used in the

calculations and,

for any test runs

not completed,

the data

collected during

Revised

discussion.

The test run summaries

(sections 3.3, 3.5, and 3.7)

have been edited to state

that the runs were

determined to be

appropriate.

(reply modified the 21/6 by

JSA –former page

numbers deleted)

End of

section 3.3

on page 14;

End of

section 3.5

on page 18;

End of

section 3.7

on page 21

(21/6 JSA)

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

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300-ELAB-2526-EPA Rev4 110821

the test run and

the reason(s)

that the test run

was not

completed and

why."

3. Page 54-56,

Annex 3 says,

"Sequence of

images from

the tests, the

5th February

2020"

but report indicates

test was 9/2/2020.

Date just

needs to be

changed in the

test report.

This was a typo that has

been corrected.

Annex 3

cover page;

Annex 3

header on

pages 2-4

(21/6 JSA)

4. Page 484 –

doesn't include

proper use of

air controls and

proper low fire

operation.

In manufacturer

instructions to the lab

they included things

such as turning controls

3 ¼ for fully open etc.

40 CFR 60.536

(g)(3)(iii) Proper

use of air controls,

including how to

establish good

combustion and

how to ensure

good combustion

at the lowest burn

rate for which the

heater is

warranted.

Would

recommend

manufacturer

modifying text

to give more

description on

home use

instructions on

operating the

air controls.

User manual instructions

have been updated to

provide more clarity on

various operational settings

including images for better

guidance

(reply modified and

clarified the 21/6 by JSA –

former page number

deleted)

Annex 31a

Users’

manual (US)

page 9;

Annex 31b

Users’

manual

(CAN) page

(21/6 JSA)

5. Did not see raw

data sheets for

filter weighing

etc.

6. Did not see raw

data sheets for

dry gas meter

for each test

run.

40 CFR 60.533

(b)(5)

Need filter

weight raw

data sheets

and raw

technician

notes. Submit

data.

Technician notes have been

added to the report, see

Annex 35

Gas meter values are

recorded pre- and post test

only, in-test monitoring of

sample rates and

proportionality are done via

calibrate flow meters, data

from these flow meters are

shown on raw data sheets.

Calibration certificates by

external Force Technology

to be seen in Annex 15,

page 34-36 (main train –

instrument id 144236

tracible to DTIs’ instrument

database

And further page 37-39

(split train –instrument id

144239)

(reply amended the 21/6

by JSA –Flow metering

details added and former

page number deleted)

Annex 35 in

its entirety;

Annex 21

HF1 Logger

data, page

7-11 (main

train flow

vel. in the

right most

column,

labelled Flow

H) and

pages 12-16

(split train

flow vel. in

the left most

column,

labelled Flow

And similarly

in annexes

22-25 for

the

remaining

tests

(21/6 JSA)

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

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300-ELAB-2526-EPA Rev4 110821

7. HF1 was

omitted and we

see the

description in

the anomalies

section which

we find

acceptable.

8. HF1 in other

sections

(tables) needs

the same note

stating that it

was omitted

due to a

clogged filter.

If the TR is

being modified,

then please

make the

appropriate

changes to

justify the

exclusion of

HF1.

A statement in

each table that

says:

"HF1 was

excluded due

to a clogged

filter."

There are no fewer than 6

references to the fact that

HF1 was excluded due to

filter issues, including all

the relevant summary

tables (3.1, 3.2, 4.1, 4.2,

and 11)

As well as the individual

run summary section

(3.3), where else would

you have us include this

information?

(reply amended the 21/6

by JSA –the statement

“HF1 was excluded due to

a clogged filter” was

amended to the

explanatory note

underneath clause 3.2

‘Main results’)

Clause 3.2

on page 10;

Clause 3.3

on page 14

(bottom);

Clause 11

on page 40

(21/6 JSA)

Scope of testing

The appliance was tested to demonstrate compliance with the NSPS 2020 limits, using the ASTM E3053

ALT-125 Cordwood test method broadly accepted by the administrator. Please find the letter of acceptance

enclosed in annex 1.

Site

Testing was accomplished by Danish Technological Institute, Kongsvang Allé 29, DK-8000 Aarhus C,

Denmark in accordance with DTI’s accredited EPA test procedure ELAB-PP-BR-15.

The test procedure is amended in annex 14.

Participants

DTI staff

Testing in the laboratory was accomplished by:

-Jes Sig Andersen, Senior Specialist (lead)

-Rene Lyngsø Hvidberg, Senior specialist (trainee)

Client staff

The test work was witnessed by:

-Frank Juel Nielsen, Morsø Jernstøberi A/S

Test specimen

The stove was manufactured by:

Company: Morsø Jernstøberi A/S

Address: Furvej 6

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

Page 9 of 49

300-ELAB-2526-EPA Rev4 110821

Postcode/town: DK-7900 Nykøbing Mors

Country: Denmark

The stove weighs 98 kg.

The stove is not equipped with a catalyst. The landscape type of firebox is deeper that its wide,

accommodation up to half a meter wood logs.

Variants: At the time of testing there was no known variants of the 2B Classic 2020 wood heater.

Description of the wood heater

Appliance Manufacturer: Morsø Jernstøberi A/S

Wood Stove Model: 2B Classic 2020

Type: Freestanding, radiant-type wood fired room heater.

WOOD HEATER DESCRIPTION

Materials of Construction: The unit is constructed primarily of cast iron with a stainless-steel secondary

combustion air supplying baffle. The firebox is lined with molded vermiculite firebricks. The feed door has

a 145 mm by 158 mm glass panel and one 870 mm by 8 mm glass fiber gasket. The ash door is sealed

with one 570 mm by 8 mm glass fiber gasket.

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

Page 10 of 49

300-ELAB-2526-EPA Rev4 110821

Air Introduction System: Air enters the firebox through a spin-draft located at

the front of the appliance at the top of the fuel-loading door. Secondary air enters

the appliance through the upper back and supplies a three-step, tiered hollow baffle.

Combustion Control Mechanisms: The combustion air inlet is controlled by a spin draft on the fuel-

loading door.

Combustor: N/A.

Internal Baffles: A stainless steel baffle with a ceramic blanket is mounted in the upper portion of the

firebox. The flame path is forced to the front of the firebox where it travels up through the opening

between the baffle and primary air manifold.

Other Features: N/ A.

Flue Outlet: The 6’’ diameter flue outlet is located at the top of the unit.

Firebox volume: 0,01943 m3or 0,6826 ft3 calculated in SolidWorks CAD simulator. Please find the firebox

drawing showing details on the firebox dimensions amended in Annex 33

The stove had been aged more than 50 hours of operation prior to the certification test while pre-testing

at Morsø including:

•The 21st of August 10 hours

•The 24th of August 10 hours

•The 26th of August 10 hours

•The 27th of August 10 hours

•The 28th of August 11 hours

Please find the set of pre-conditioning data in annex 2.

Report No.: 300-ELAB-2526-EPA Rev4 110821

Date: 11.08.2021

Initials: JSA/

Page 11 of 49

300-ELAB-2526-EPA Rev4 110821

Test schedule

The full certification test comprises three HF test runs, one MF test run and one LF test run.

Date

Test I

Test II

Remarks

2-9-2020

HF test

LF test

Both tests valid, however the HF filters clogged

3-9-2020

HF test

MF test

Both tests valid

4-9-2020

HF test

none

Valid HF test

Main results

Please see also the full set of test results in table of chapter 11 and with more decimals in section 4.10

*) The HF1 test is discarded of in the weighted average emission calculation. HF1 was excluded due to a

clogged filter. Please find details in the test summary below in section 3.3

Summary of the CS+HF and LF tests the 02-09-2020

Data logger files Id: 2020-09-02_08:43:10 (CS+HF) and 2020-09-02_14:01:25 (LF)

12:19:15

Ignition of the Cold Start part test using the gas torch for 45 seconds. The air valve

is set in position 100% open (full action = 3 and one quarter revolution open).

0.604 kg of kindling (10% moisture DB) and 0.913 kg start-up fuel (19,7% moisture

DB) was entered