BLT reference number : 136/06 BLT approval number : 036/06

(replaces BLT reference number : 170/02) (replaces BLT approval number : 034/03)



## Pellet burner

EVOTHERM HP 28

Applicant and manufacturer :

EVOTHERM

Heiztechnik Vertriebs GmbH

Seeleiten 2 4

AT 5120 St. Pantaleon

A 3250 Wieselburg, Rottenhauser Straße 1

Tel.: +43 7416 52175

- 0, Fax: +43 7416 52175

– 45

blt@josephinum.at, http://blt.josephinum.at TEST REPORTREVISED EDITION

The present test report for pellet burner EVOTHERM HP 28

, appro val no. 036 /06, is a revised edition of the

test report for pellet bu rner HMS HP 14, approval no. 034/03

.

The pellet burner EVOTHERM HP 28 has been manufactured by Evotherm Heiztechnik Vertriebs GmbH.

The revised test report has been reissued due to the modified manufacturer and type designation.

The construction of this burner is identical to that of the type

- tested pellet bu rner HMS HP 14, approval no.

034/03

.

For the

factual correctness:

ADir. Dipl.

- HLFL

- Ing.

Leopold Lasselsbe r ger e. h. For t he

report and tests:

Ing

. Harald Baumgar t ner e. h.

Head of the

accredited test centre:

Hofrat Dipl.

- Ing. Dr.

Johann Schrottmaier e. h.

Wieselburg, 21/06/2006

Translation: 31/07/2009

Pellet burner EVOTHERM HP 28

BLT refe rence number : 136/06The BLT Wieselburg is an accredited burner test centre issued with identification number 112 according

a c creditation law BGBl. No. 468/1992. The quality management system complies with the re quirements

d e fined in ÖVE/ÖNORM EN ISOIEC 17 025.

Rottenhauser Straße 1

A 3250 Wieselburg

Austria / Österreich Tel.: +43

- 7416

- 52175

- 0

Fax: +43

- 7416

- 52175

- 45

E

- Mail: blt@josephinum.at

Internet: http://blt.josephinum.at

The test results detailed in this test report exclusively refer to the test piece specified in the chapter

„Boiler plate information“.

The test report must be published only literally and unabridged.

Exceptions have to be authorized by Francisco Josephinum BLT.

Authorized translat ion

In the event of doubt the German original shall prevail.

# TEST REPORT

BLT reference number : 170/02 BLT approval number : 034/03



## Pellet burner HMS HP 28

Applicant :

HMS Heiztechnik Maschinenbau Service

Hofer & Manglberger OEG

Seel eiten 24

5120 St. Pantaleon Manufacturer :

Ing. E. Hofer

Technisches Büro

Seeleiten 24

5120 St. Pantaleon

## Bundesanstalt für Landtechnik

Federal Institute of Agricultural Engineering

Postfach 10

Rottenha user Straße 1

A 3250 Wieselburg

Austria / Österreich Tel.: +43

- 7416

- 52175

- 0

Fax: +43

- 7416

- 52175

- 45

E

- Mail: direktion@blt.bmlfuw.gv.at

Internet: http://www.blt.bmlfuw.gv.at

The test report must be published only literally and unabridged

apart from exc eptional cases confirmed in writing.- Page 1 of 15

- (170/02)

DESCRIPTION

The tested pellet burner HMS HP 28 manufactured by the company HMS Heiztechnik

Maschinenbau Service Hofer & Manglberger OEG with a nominal heat output of 28,0 kW

comprises a pellet container, the fuel f eeding system with an integrated rotary gate valve, the

burner and the combustion chamber and a two

- pass vertically set up pipe heat exchanger.

The burner is equipped with an electric ignition fan, a cleaning motor for the heat exchanger

and the burner, a speed

- controlled draught fan, a Lambda sensor and a microprocessor

control system.

A cuboid sheet metal storage container was used to perform the tests. At the bottom of the

extraction container a flexible extraction screw is situated which is arranged in a ductile PLT

pipe. The discharge system with integrated rotary gate valve is powered by a DC motor. The

discharge system and the stoker screw are coupled with a slewable ball clutch system. The

stoker screw transports the wood pellets diagonally upwards from where they fall through a

drop shaft into the heat resistant metal burner. The fuel is ignited with a hot air blower and is

monitored by a photo cell. The ignition is regulated by a microprocessor system which

adjusts the fuel feed with a speed

- contro lled draught fan, a Lambda sensor, a photo cell and

the boiler and flue gas temperature sensors according to the required heat output level. The

levels of the primary air and secondary air flows are preset with factory

- made valves. The

primary air flow is directed through the fuel bed and the combustion gases are supplied with

the secondary air flow with baffle plates. The combustion gases flow then to the pipe heat

exchanger with integrated turbulators. The heat exchanger and the burner are automatically

c leaned by a cleaning motor. The cleaning process takes place automatically via a two

- part

tipping grate. The ashes from the heat exchanger and the combustion chamber are collected

in a common ash box. The combustion chamber and the heat exchanger are therm ally

insulated from the outside.

BOILER PLATE INFORMATION

HMS Heiztechnik Maschinenbau Service

Hofer

– Manglberger OEG

Seeleiten 24

A

- 5120 St. Pantaleon

Heizkessel

- Type: HMS HP 28

Brennstoff: Holzpellets

Wasserinhalt: 36 l

Wärmeleistung: 28 kW

Ba ujahr: 2003

Seriennummer: 30020

Leistungsbereich: 8

- 28 kW

max. Betriebsdruck: 3 bar

max. Betriebstemperatur: 80 °C

elektr. Anschluss: 230V AC 50 Hz 8 A

Leistungsaufnahme: max. 1,6 kW- Page 2 of 15

- (170/02)

DIAGRAM OF THE BURNER

TECHNICAL DATA

B urner

Overall width

................................ ................................ ................................ ............... 590 mm

Overall depth

................................ ................................ ................................ ............... 820 mm

Overall depth with stoker driving unit

................................ ................................ ......... 1220 mm

Overall height

................................ ................................ ................................ .............. 990 mm

Overall weight incl. s toker driving unit (without water )

................................ .................. 240 kg

Water capacity (measured )

................................ ................................ ............................ 39 l

Diameter of flue gas pipe

................................ ................................ ............................ 130 mm

He ight to centre of flue gas pipe

................................ ................................ .................. 775 mm

Flow / return connection

................................ ................................ ................................ .. 1 "

Thermal insulation

................................ ................................ ................................ .. 75

- 100 mm

Thickness of sheets exposed to fire (heat resistant steel )

................................ ................ 5 mm Draught fan

Ash box Heat exchanger

with

swirls Control panel

Inspection glass Downpip e

inlet

Burner Control

box 

### Operation unit- Page 3 of 15

- (170/02)

ME ASUREMENTS AT THE TEST RIG

Measurements were taken to determine the heat output, boile r efficiency (direct method), flue

gas composition, flue gas temperature in the measuring section, feed pressure (draught),

emission characteristics and electrical power consumption. The surface temperatures were

measured at nominal heat output and at stat ionary operation; this allowed the surface losses

to be estimated.

The measurement equipment and the measurement methods correspond to ÖNORM EN

303

- 5:1999, ÖNORM EN 304:1992/A1:1998 and EN 267:1999. The measurement accuracy

and the measurement uncertainty are stated in the procedures for verification in the quality

management manual issued by the Federal Institute of Agricultural Engineering

(Bundesanstalt für Landtechnik).

TEST SETUP, MEASUREMENT METHODS

BOILER TEST RIG WITH HEAT EXCHANGER: Heat output measurement by directly

measuring the amount of water circulated through the heating circuit and its temperature

increase (DIN 4702

- 2:1990).

FLUE GAS EXTRACTION through a vertical measuring section, generating the feed

pressure using a prefabricated flue pipe, diameter 200 mm, height above ground level 9 m,

feed pressure limited by draught restriction flap.

HEAT OUTPUT MEASUREMENT: Determining the mass flow using the Coriolis mass flow

meter PROMASS 63 F from Endress & Hauser, as well as the water tempera tures at the

boiler flow/return using a Pt 100 resistance thermometer, 1/3 DIN, calibrated as a pair.

FLUE GAS TEMPERATURE in the measuring section using a measurement system with 5

Pt 100 resistance thermometers.

FEED PRESSURE with a ring balance meter.

WATER

- SIDE RESISTANCE: Differential pressure transducer with ceramic measuring

membranes DELTABARS PMD 230 from Endress & Hauser.

CARBON DIOXIDE AND CARBON MONOXIDE CONTENT: Non

- dispersive infrared gas

analyser NGA 2000 from Fisher

- Rosemount; carbon dio xide: lowest measurement range 0

- 5 %, highest measurement range 0

- 20 %; carbon monoxide: lowest measurement range 0

- 400 ppm, highest measurement range 0

- 20000 ppm; measured in dry flue gas.

DUST CONTENT: Dust meter by company Ströhlein with nomin al suction quantity of 4 m 3 /h,

dust separation on stuffed quartz wool filter; filter is located directly after sampling probe and

elbow, determination of partial flow volume by dry gas meter and upstream drying tower. The

sampling point for determination o f dust content is arranged directly after the measuring

section.

CONTENT OF ORGANIC GASEOUS SUBSTANCES: Flame ionisation detector from JUM,

Type VE 5; samples taken via heated filter and heated pipe (thermostatically controlled to

180 °C); measured in dam p flue gas.

NITROGEN MONOXIDE CONTENT: Gas analyser from ECO Physics Type CLD 700 E1

- ht;

chemiluminescent measurement principle; samples taken via heated filter and heated pipe;

gas cooler; measured in dry flue gas.- Page 4 of 15

- (170/02)

DATA LOGGING using TopMessage data log ging system from Delphin Technologie AG,

sampling interval 1 second, average value determined from 60 measurements, average data

stored to media.

PERFORMANCE OF HEATING TESTS

HEAT OUTPUT: The measurements were carried out in accordance with ÖNORM EN 303

- 5:1999 at nominal and minimum heat output ( < 30 % of the nominal heat output)

respectively. The nominal heat output measurements were performed after the burner had

been in operation for at least 3 hours in the nominal heat output range. The measurements

t hemselves were taken over a test period of at least 6 hours. The efficiency was calculated

by taking into account the heat stored in the boiler water.

EMISSIONS: Carbon dioxide, carbon monoxide, organic carbon and nitrogen oxide values

were averaged over the whole test duration. The emissions of dust and nitrogen oxides were

determined only at nominal heat output. For determining the dust content the extraction time

per filter was limited to 30 minutes. The dust content was determined by 6 half

- hourly

aver ages, evenly distributed over the test duration. Calibration gases were used to check the

gas analysers before and after every test period.

SETTINGS: The declared measurements relate to reproducible tests using optimised

settings. The settings were made during preliminary tests based on recommendations of the

manufacturer. It was aspired to maximise the carbon dioxide content whilst at the same time

minimising the carbon monoxide content.

FUEL: The measurements were performed with wood pellets according to ÖNORM M

7135:2000 with a diameter of 6 mm and a water content of 7,4 % and 7,8 %. The calorific

value, the water content and the ash content were determined; the average values of the

chemical data relating to the water

- and ash

- free substances were ta ken from ÖNORM M

7132:1998.

FUNCTION CHECK of the temperature controller, safety temperature limiter and monitor. The measurements at the boiler were performed as specified in 5.13 of ÖNORM EN 303

- 5:1999. The functional check to verify the rapid shutdown of the burner system was performed as specified in 3.35 and 4.1.5.11.2 according to ÖNORM EN 303

- 5:1999.

INTERPRETATION OF EMISSION MEASUREMENTS

The emission measurements were analysed by calculating the complete flue gas analysis

using the carbon monoxi de and the carbon dioxide content averaged over the measurement

period together with the fuel composition data. The speed of the flue gas at the measuring

point was calculated from the flue gas volume taking into account the pressure and

temperature.

The content of organic gaseous substances was measured in damp flue gas, the emissions

were then converted for dry flue gas conditions and declared as organic carbon. The content

of nitrogen oxides was measured in dry flue gas and declared as NO 2

.- Page 5 of 15

- (170/02)

Test ident ification Nominal heat output

Number of test : HKA_1012

Nam e of boiler: Pellet burner HMS HP 28

Nominal heat output : 28 kW

Minimum Average Ma ximum

value value value

Test conditions

Start of test : 2003

- 03

- 05 08:44

End of test : 2003

- 03

- 05 14:45

Test duration : 06:01

Ambient temperature : °C 19,4 19,8 20,1

Outside temperature : °C 1,1 2,1 3,4

Air pressure : mbar 998

Test fuel, heat input

Test fuel Wood pellets 03_024

Water content kg/kg 0,074

Ash content kg/kg 0,003

Carbon content kg/kg 0,469

Hydrogen content kg/kg 0,057

Oxygen content kg/kg 0,397

Calorific value of anhydrous

and ash

- free substance MJ/kg 19,1

Calorific value of test fuel MJ/kg 17,5

Applied fuel quantity kg 37,7

Hourly fuel quantity kg/h 6,3

Fuel heat input kW 30,4

Heat output, efficiency

Water circulation kg/h 1152,6 1157,1 1161,0

Flow temperature °C 51,1 51,6 52,1

Return temperature °C 70,2 72,1 73,6

Temperatur e difference K 18,7 20,5 22,1

Heat output kW 27,6

Utilisation % 98,5

Boiler efficiency % 90,8

Measured values flue gas measuring section

Flue gas temperatu re °C 122,9 124,3 126,5

Manometric pressure Pa 3,7 4,2 4,7

Carbon dioxid e % 10,4 14,1 16,7

Carbon monoxid e ppm 9,5 202,1 6325,9

Organic gaseous substances ppm 0,9 1,9 26,7

Nitrogen monoxid e ppm 101,7 145,0 178,6- Page 6 of 15

- (170/02)

EMISSION MEASU REMENTS

Measurement results test : HKA_1012

(Calculation depending on CO 2 - measurement )

Suction start : hh:mm 08:45 09:45 10:45 11:45 12:45 13:45

Suction period : min 30 30 30 30 30 30

Measured CO 2 - content : % 14,0 14,2 14,1 14,1 14,0 14,0

Calculated O 2 - content : % 6,4 6,3 6,4 6,4 6,4 6,4

Density of gas sample:

Dry gas : kg/Nm 3 1,36 1,36 1,36 1,36 1,36 1,36

Humid gas: kg/Nm 3 1,30 1,30 1,30 1,30 1,30 1,30

Water content : g/Nm 3 84,0 84,9 84,3 84,3 84,2 84,3

Velocity:

At sampling point : m/s 1,35 1,34 1,34 1,34 1,35 1,35

At probe head: m/s 1,16 1,21 1,21 1,21 1,20 1,20

Dust content:

separated mg 13 ,6 14,9 9,0 8,9 13,1 14,3

separated relating

to sample volume mg/Nm 3 21,8 22,9 13,9 13,7 20,4 22,3

EVALUATION

relating to relating to

applied energy O 2 - content of

10 % 13 %

mg/MJ mg/Nm 3 mg/Nm 3

Dust 7 14 11

Carbon monoxid e (CO) 90 190 138

Organic gaseous

substances (OGC) 1 3 2

Nitrogen oxide s (NO

x ) 106 224 163- Page 7 of 15

- (170/02)

OUTPUT

- RELATED MEASUREMENTS

0 60 120 180 240 300 360

Time [min] 0 5 10 15 20 25 30 [kW]

Heat output HKA_1012

0 60 120 180 240 300 360

Time [min] 0 50 100 150 200 250 300 [°C]

Flue gas temp.

Flow temp.

Return temp. HKA_1012- Page 8 of 15

- (170/02)

FLUE GAS COMPOSITION

0 60 120 180 240 300 360

Time [min] 0 4 8 12 16 20 24 CO2 [%]

0 2000 4000 6000 8000 10000 12000 CO [ppm]

Carbon dioxide

Carbon monoxide HKA_1012

0 60 120 180 240 300 360

Time [min] Dust

0 25 50 75 100 125 150 Dust [mg/Nm3]

Organic C

0 50 100 150 200 250 300 OGC, NOx [ppm]

Nitrogen oxide HKA_1012- Page 9 of 15

- (170/02)

Test identification Minimum heat output

Number of test : HKA_1011

Name of boiler : Pellet burner HMS HP 28

Nominal heat input : 28 kW

Minimum Average Maximum

value value value

Test conditions

Start of test : 2003

- 03

- 04 1 4:36

End of test : 2003

- 03

- 05 05:04

Test duration : 14:28

Ambient temperature : °C 19,4 19,7 20,0

Out s i de temperature : °C 1,5 3,9 7,8

Air pr essure : mbar 998

Test fuel, heat input

Test fuel Wood pellets 03_024

Water content kg/kg 0,078

Ash content kg/kg 0,003

Carbon content kg/kg 0,467

Hydrogen content kg/kg 0,057

Oxygen content kg/kg 0,395

Calorific value of anhydrous

and ash

- free substance MJ/kg 19,1

Calorific value of fuel MJ/kg 17,4

Applied fuel quantity kg 26,0

Hourly fuel quantity kg/h 1,8

Fuel heat input kW 8,7

Heat output, effic iency

Water circulation kg/h 335,1 338,6 340,6

Flow temperature °C 54,3 56,7 57,7

Return temperature °C 73,1 76,7 79,9

Temperatur e difference K 17,9 20,1 22,9

Heat output kW 7,9

Utilisation % 28,3

Boiler efficiency % 91,5

Measured values flue gas measuring section

Flue gas temperature °C 80,2 8 3,1 85,2

Manometric pressure Pa 2,3 2,4 2,9

Carbon dioxid e % 6,7 9,8 13,0

Carbon monoxid e ppm 10,7 25,7 105,3

Organic gaseous substances ppm 0,4 0,5 0,8- Page 10 of 15

- (170/02)

OUTPUT

- RELATED MEASUREMENTS

0 150 300 450 600 750 900

Time [min] 0 2 4 6 8 10 12 [kW]

Heat output HKA_1011

0 150 300 450 600 750 900

Time [min] 0 50 100 150 200 250 300 [°C]

Flue gas temp.

Flow temp.

Return temp. HKA_1011- Page 11 of 15

- (170/02)

FLUE GAS COMPOSITION

0 150 300 450 600 750 900

Time [min] 0 4 8 12 16 20 24 CO2 [%]

0 20 40 60 80 100 120 CO [ppm]

Carbon dioxide

Carbon monoxide HKA_1011

0 150 300 450 600 750 900

Time [min] Organic C

0 25 50 75 100 125 150 OGC, NOx [ppm]

HKA_1011- Page 12 of 15

- (170/02)

S URFACE LOSSES

The heat loss through the boiler surface is determined using DIN 4702

- 2:1990 basing on

radiation coefficients and arrangements of technical surfaces (according to Nusselt). During

a test temperatures were measured at 35 points on the boiler surface at the nominal heat

output and the heat loss through the surfa ce was determined. The measurement results are

shown in the following table:

Test number : HKA_1012

Ambient temperatur e : 20 °C

Flow temperatur e : 71 °C

Flue gas temperatur e : 123 °C

Heat output in the boiler circuit : 28,0 kW

Radiation losses from boi ler : 0,15 kW

Percentage loss at nominal heat output : 0,5 %

The surface temperature of the handle on the combustion chamber/ash door was 2 K above

the ambient temperature

.

FUNCTION CHECK OF THE TEMPERATURE CONTROLLER / SAFETY TEMPERATURE

LIMITER ON THE BOILER

The functional check of the temperature controller and the safety temperature limiter and monitor on the boiler was performed in accordance with section 5.13 of ÖNORM EN 303

- 5.

The requirements were fulfilled.

FUNCTION CHECK TO VERIFY THE R APID SHUTDOWN OF THE SYSTEM

Since the tested pellet burner HMS HP 28 from the company HMS Heiztechnik

Maschinenbau Service Hofer & Manglberger OEG is not equipped with a device to dissipate

the residual heat as described in section 4.1.5.11.3 of ÖNORM EN 303

- 5, the operating and

fault conditions associated with a power outage and sudden loss of heat extraction were

simulated in order to satisfy the definition of a burner system with a rapid shutdown facility.

During the course of the checks on the tempe rature controller, the safety temperature limiter

and the rapid shutdown facility no dangerous operating conditions arose neither with the

water system nor the burner.- Page 13 of 15

- (170/02)

WATER

- SIDE RESISTANCE OF T HE BOILER

The water

- side resistance for the flow rates wa s determined at nominal heat output which

occured at temperature differences of 10 K and 20 K respectively.

Flow rate

[l/h] Temperatur e

difference [K] Wat er temperatur e

[°C] Differential pressure

[mbar]

1200 20 18,7 2,2

2400 10 18,8 9,7

ELECTRICAL POWER CONSUMPTION

P EL [W] *)

Drive motor

– extraction screw 90

Drive motor

– s toker screw 60

Draught fan 35

Hot air blower

- ignition 1551

Cleaning motor

– heat exchanger / grate cleaner 63

*) All values of active power were measured incl. contro l in stand

- by position.

During the test of 361 minutes 499 Wh were took up at nominal output with wood pellets; this

complies with 0,3 % of the nominal heat output.

SUMMARY OF RESU LTS

The pellet burner HMS HP 28 from the company HMS Heiztechnik Masch inenbau Service

Hofer & Manglberger OEG with a nominal heat output of 28,0 kW was tested in the power range of 7,9 to 27,6 kW using wood pellets compliant to ÖNORM M 7135:2000 having a

diameter of 6 mm and a water content of 7,4 % and 7,8 %.

Since the boi ler flue gas temperature is less than 160 K above room temperature at nominal

heat output, the boiler manufacturer shall make recommendations in accordance with

ÖNORM EN 303

- 5, regarding the flue installation in order to ensure sufficient draught and to

pr event sooting up of the chimney and condensation.- Page 14 of 15

- (170/02)

The results of the measurements were as follows:

Nominal heat output Minimum heat output

Test fuel [

- ] Wood pellets

Water content [%] 7,4 7,8

Heat output [kW] 27,6 7,9

Load [%] 98,5 28,3

Flu e gas

temperatur e [°C] 124,3 83,1

Boiler efficiency [%] 90,8 91,5

Carbon dioxid e [%] 14,1 9,8

[mg/MJ] 1 ) [mg/m 3 ] 2 ) [mg/m 3 ] 3 ) [mg/MJ] 1 ) [mg/m 3 ] 2 ) [mg/m 3 ] 3 )

Dust 7 14 11 n.g. n.g. n.g.

Carbon monoxid e 90 190 138 16 35 25

Organ ic carbon 1 3 2 <1 1 1

Nitrogen oxide s 106 224 163 n.g. n.g. n.g.

1) Emission values in mg/MJ (relating to applied energy), subject to legal requirements in Austria.

2) Emission values in mg/m 3 (relating to 10 % O 2 , 1013 mbar, dry flue gas), according to ÖNORM EN 303

-

5:199 9.

3) Emission values in mg/m 3 (relating to 13 % O 2 , 1013 mbar, dry flue gas), corresponding to various n a tional

and international requirements.

Based on the results, one can hereby confirm t hat the pellet burner HMS HP 28 from the

company HMS Heiztechn ik Maschinenbau Service Hofer & Manglberger OEG can be

provided with the test mark of the Federal Institute for Agricultural Engineering.

Head of department for

biogenic fuels:

Amtsdirektor Dipl.

- HLFL

- Ing.

Leopold Lasselsberger e.h. For the

report and tests:

Ing.

Harald Baumgartner e.h.

Head of the

Federal Institute:

Hofrat Dipl.

- Ing. Dr.

Johann Schrottmaier e.h.

Wieselburg, 30/06/ 2003- Page 15 of 15

- (170/02)



### APPENDIX (for information only )

LEGAL REQUIREMENTS RELATING TO SMALL BURNER SYSTEMS FOR

BI OGENOUS FUELS IN AUSTRIA

Agreement according to Art. 15 a B

- VG concernin g an amendment to the agreement

according to Art. 15 a B

- VG relating to protective measures for small burners (1998)

Small solid fuel burners must not exceed the following emission l imits:

Solid fuel burners Emission limits [mg/MJ]

CO NO

x OGC Dust

Manually

loaded Biogenous

fuels 1100 150*) 80 60

Fossil

fuels 1100 100 80 60

Automatically

loaded Biogenous

fuels 500**) 150*) 40 60

Fossil

fuels 500 100 40 40

*) T he NOx limit only applies to wood burners.

**) This limit value can be exceeded by 50% during partial load operation at 30% of nominal heat

output.

Energy saving agreement according to Art. 15 a B

- VG:

The efficiency of small solid fuel burners should not fall below t he following values:

Small burners used for solid fuel central heating:

Manually loaded

up to 10 kW 73 %

> 10 bis 200 kW (65,3 + 7,7 log Pn) %

> 200 kW 83 %

Automatically loaded

up to 10 kW 76 %

> 10 bis 200 kW (68,3 + 7,7 log Pn) %

> 200 kW 86 %

Based on the test results, one can hereby confirm that the requirements governed by the

agreements in Art. 15 a BV

- G relating to “Protective measures for small burners” (1998)

and “Saving energy” (1995) are fulfilled. These federal re q u irements are impl emented in

local state law.