BLT reference number: 027/07 BLT approval number: 008/10

(replaces BLT reference number: -/-) (replaces BLT approval number: -/-)

Pellet heating boiler 

EVOTHERM P 200 ECO 

Test fuel: Wood pellets 

Applicant and manufacturer: 

EVOTHERM Heiztechnik Vertriebs GmbH 

Seeleiten 24 

AT 5120 St. Pantaleon 

AT 3250 Wieselburg, Rottenhauser Straße 1 

Tel.: +43 7416 52175 – 0, Fax: +43 7416 52175 – 45

blt@josephinum.at, http://blt.josephinum.at 

TEST REPORT
The BLT Wieselburg is an accredited burner test centre issued with identification number 112 according accreditation law BGBl. No. 468/1992. The quality management system complies with the requirements defined 

in ÖVE/ÖNORM EN ISOIEC 17 025. 

Rottenhauser Straße 1 

AT 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 translation 

In the event of doubt the German original shall prevail.
Page I 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

TABLE OF CONTENTS 

Page 

1 DESCRIPTION ...................................................................................................................... 1

1.1 General ........................................................................................................................................... 1

1.2 Boiler plate information................................................................................................................... 1

1.3 Diagram of the boiler ...................................................................................................................... 2

1.4 Technical data ................................................................................................................................ 2

2 TEST AND RESULTS ........................................................................................................... 3

2.1 Test setup – measurement methods ............................................................................................. 3

2.2 Performance of heating tests ......................................................................................................... 4

2.3 Interpretation of emission measurements ...................................................................................... 4

2.4 Investigatory heating tests with wood pellets at nominal heat output ............................................. 5

2.4.1 Output-related measurements .......................................................................................... 7

2.4.2 Flue gas composition ........................................................................................................ 8

2.5 Investigatory heating tests with wood pellets at minimum heat output........................................... 9

2.5.1 Output-related measurements ........................................................................................ 11

2.5.2 Flue gas composition ..................................................................................................... 12

2.6 Surface losses .............................................................................................................................. 13

2.7 Water-side resistance of boiler .................................................................................................... 13

2.8 Electrical power consumption ...................................................................................................... 14

2.8.1 Average electrical power consumption at nominal heat output, 

minimum heat output, at ignition and on standby position .............................................. 14

2.8.2 Electrical power consumption of main loads ................................................................... 14

3 SUMMARY OF RESULTS ................................................................................................... 14

3.1 Heating tests ................................................................................................................................ 14

3.2 Function check of the temperature controller / safety temperature limiter on the boiler .............. 15

3.3 Function check of device to extract excessive heat ..................................................................... 15

4 ASSESSMENT .................................................................................................................... 16

APPENDIX A (FOR INFORMATION ONLY) ................................................................................. 17

Legal requirements relating to small firing systems for biogenous fuels in Austria ................................17

APPENDIX B (FOR INFORMATION ONLY) ................................................................................ 19

Surface temperature measuring points ..................................................................................................19
Page II 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

APPLIED STANDARDS 

[1] ÖNORM EN 303-5:1999 Heating boilers for solid fuels, hand and automatically stoked, nominal 

heat output of up to 300 kW 

[2] ÖNORM EN 304:2005 Heating boilers. Test code for heating boilers for atomising oil burners

[3] ÖNORM EN 267:1999 Forced draught oil burners – definitions, requirements, testing, marking 

[4] ÖNORM M 7132:1998 Energy-efficient use of wood and bark as fuel – Definition and features 

[5] ÖNORM M 7135:2000 Compressed wood and compressed bark in natural state – Pellets 

and briquettes – Requirements and test specifications 

[6] DIN 4702-1:1990 Central heating boilers – Terms, requirements, testing, marking 

[7] DIN 4702-2:1990 Central heating boilers – Test code 

[8] ÖNORM M 5861-1:1993 Manual determination of dust concentrations in drifty gases – Gravimetric method – General requirements 

[9] ÖNORM M 5861-2:1994 Manual determination of dust concentrations in drifty gases – Gravimetric method – Special measuring requirements 

BASICALLY APPLIED STANDARDS 

[1] ÖNORM EN 13284-1:2002 Stationary source emissions – Determination of low range mass 

concentration of dust – Part 1: Manual gravimetric method 

[2] VDI 2066-1:2006 Measuring of particles, determination of dust in drifty gases, gravimetric method of dust loading 
Page 1 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

1 DESCRIPTION 

1.1 General 

The tested pellet heating boiler EVOTHERM P 200 ECO manufactured by Evotherm Heiztechnik 

Vertriebs GmbH with a nominal heat output of 200,0 kW comprises a boiler with integrated 

combustion chamber and a vertically arranged three-pipe heat exchanger, a fuel feeding system 

with integrated burn-back protection device and the stoker screw. The burner is equipped with 

an electric ignition fan, an automatic cleaning system for the heat exchanger, a speed-controlled 

draught fan as well as a secondary air fan, a Lambda sensor, a microprocessor control system 

with control panel and the display with associated switches and sensors. 

 

A sheet metal storage container was used to perform the tests. The screw conveyor for the fuel 

extraction is directly driven by a gear motor and transports the pellets to the down pipe with integrated rotary valve. The stoker screw transports the fuel upwards from where it falls through a 

drop shaft and a down pipe on the boiler front side which is equipped with a photocell and an inspection glass. From there it can fall into the heat resistant metal burner. The boiler is periodically cleaned from the ashes by moving the step grate; the residues fall then into the subjacent 

ash screw. A photocell is controlling constant supplies. 

After reversing the combustion gases above the burner, the gases are directed through the 

three-pipe heat exchanger. The speed-controlled combustion fan directs the combustion air as 

primary air flow through the fuel bed and as secondary air flow to the fuel gases. At the outlet of 

the heat exchanger the speed-controlled draught fan, the Lambda sensor and the flue gas temperature sensor are installed. 

The burner and the heat exchanger are automatically cleaned by a separate motor which also 

opens the burner and cleans the heat exchanger pipes with rotators. The ash finally falls into an 

ash screw which is installed below the heat exchanger and transports the residues into an attached ash box. 

The fuel is automatically ignited with a hot air blower. The combustion is monitored by a photo 

cell. It is then regulated by a Lambda sensor, a speed-controlled draught fan and a speedcontrolled secondary air fan according to the required heat output level. The negative pressure 

in the combustion chamber is monitored by a load cell. 

The combustion chamber and the heat exchanger are thermally insulated from the outside. 

1.2 Boiler plate information 
Page 2 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

1.3 Diagram of the boiler 

1 The draught fan produces the required low 

pressure which is measured and monitored 

by a low pressure device. 

2 The flue gases flow through the three-pipe 

heat exchanger and release the heat to the 

cold water together with the cleaning turbulators. 

3 The burner screw transports the pellets 

upwards which then fall downwards via a 

chute with integrated inspection glass into 

the combustion chamber. The fuel is ignited 

with a hot air blower. Above the inspection 

glass a photo cell is installed which controls 

the flame. 

4 The ash is transported to the ash screw by 

opening the ash removal element below the 

2

nd and 3rd draught. 

5 The step grate arranges the cleaning of the grate by moving the grate elements. Thus the residues 

 are directly transported to the ash screw. 

6 The secondary air flow is led by a high pressure secondary air fan through the vent to the thermal 

 reheating. The regulation is adapted according to the boiler output and the lambda value. 

 

1.4 Technical data 

Parameter – Overall dimensions of burner Value Unit 

Overall width of boiler 1000 mm 

Overall depth incl. draught fan, without stoker unit 1890 mm 

Overall height 1990 mm 

Diameter of flue gas pipe 250 mm 

Height to centre of flue gas pipe connection 2090 mm 

Flow / return connection 2 " 

Water capacity (measured) 224 l 

Thickness of sheets exposed to fire 8 mm 

Thermal insulation 20 - 100 mm 

Total weight of boiler incl. stoker unit 1357 kg 

Source: Measurements by BLT Wieselburg 
Page 3 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2 TEST AND RESULTS 

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

gas composition, flue gas temperature in the measuring section, feed pressure (draught), emission characteristics and the electrical power consumption. The surface temperatures were 

measured at nominal heat output and at stationary 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 304:2005 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). 

2.1 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 400 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 83 F from Endress & Hauser, as well as the water temperatures 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 from company RIXEN, Type MU Digital/97, measurement range 0-100 Pa. 

WATER-SIDE RESISTANCE: Differential pressure transducer with ceramic measuring membranes DELTABARS PMD 70 from Endress & Hauser. 

CARBON DIOXIDE AND CARBON MONOXIDE CONTENT: Non-dispersive infrared gas analyser NGA 2000 from Emerson; carbon dioxide: lowest measurement range 0 - 5 %, highest 

measurement range 0 - 20 %; carbon monoxide: CO Low - lowest measurement range 

0 - 50 ppm, highest measurement range 0 - 2500 ppm; CO High – lowest measurement range 

0 - 1,0 %, highest measurement range 0 - 10 %; measured in dry flue gas. 

DUST CONTENT: Measuring device for gravimetric determination of total dust by company Paul 

Gothe GmbH according to ÖNORM EN 13284-1:2002 with a nominal suction quantity of 6 m3

/ 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 of dust content is arranged directly after the measuring section. 

CONTENT OF ORGANIC GASEOUS SUBSTANCES: Flame ionisation detector Thermo-FID 

„ES“; samples taken via heated filter and heated pipe (thermostatically controlled to 180 °C); 

measured in damp 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 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

ELECTRICAL POWER CONSUMPTION: Modular energy meter ULYS ETD from ENERDIS, 

three phase 100-400 with a measurement accuracy for active energy corresponding to 

IEC 61036/EN61036 C1.1. Maximum resolution of the pulse output: 0,1 Wh. 

Power Analyzer Norma 4000 with 3 Power Phase PP40 with following specifications: 8 measurement ranges for voltage (0,3 / 1 / 3 / 10 / 100 / 300 / 1000 V), 6 measurement ranges for current (30 – 100 mA – 0,3 – 1 – 3 – 10 A). The measurement accuracy of +/- 0,1 % of measured 

value and 0,1 % of measuring range, Sample Rate 341 kHz, bandwidth for voltage 3 MHz. 

DATA LOGGING using TopMessage data logging system from Delphin Technologie AG, sampling interval 1 second, average value determined from 10 measurements, average data stored 

to media. 

2.2 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 themselves 

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. 

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

values were averaged over the whole test duration. 

DUST CONTENT: For determining the dust content, basically according to ÖNORM 

EN 13284-1:2002, the extraction time per filter was limited to 30 minutes. The dust content was 

determined by 6 half-hourly averages, 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 6,0 % and 6,1 %. The water content, the ash content and the calorific value were determined; the average values of the chemical data relating to the water- and ash-free substance were taken from ÖNORM M 7132:1998. 

FUNCTION CHECK of the temperature controller, safety temperature limiter and monitor, and 

the installation to extract excessive heat of the boiler. The measurements were performed as 

specified in 5.13 and 5.14 of ÖNORM EN 303-5:1999. 

2.3 Interpretation of emission measurements 

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

the carbon monoxide and 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 NO2. 
Page 5 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.4 Investigatory heating tests with wood pellets at nominal heat output 

Number of test HKB_1032 

Name of boiler 

Nominal heat output (kW) 

Pellet heating boiler EVOTHERM P 200 ECO 

200,0 kW 

 

Minimum 

value 

Average 

value 

Maximum 

value 

Test conditions 

Start of test 28.08.2008 08:01 

End of test 28.08.2008 14:02 

Test duration [hh:mm] 6:00 

 

Ambient temperature °C 23,5 26,3 28,0

Outside temperature °C 20,5 24,0 27,5

Air pressure mbar 989

 

Test fuel, heat input 

Test fuel Wood pellets 08_0418 

Water content kg/kg 0,060

Ash content kg/kg 0,002

Carbon content kg/kg 0,476

Hydrogen content kg/kg 0,058

Oxygen content kg/kg 0,403

Calorific value of anhydrous and 

ash-free substance MJ/kg 19,1

Calorific value of test fuel MJ/kg 17,7

 

Applied fuel quantity kg 268,8

Hourly fuel quantity kg/h 44,7

Fuel heat input kW 220,5

 

Heat output, efficiency 

Water circulation kg/h 8471,2 8571,4 8653,4

Flow temperature °C 54,4 54,8 55,3

Return temperature °C 74,8 75,3 75,8

Temperature difference K 20,0 20,5 21,2

Heat output kW 204,9

Utilisation % 102,4

Boiler efficiency % 92,9

 

Measured values at flue gas 

measuring section 

Flue gas temperature °C 137,9 139,4 142,4

Manometric pressure Pa 17,0 19,3 26,7

 

Carbon dioxide % 10,4 14,1 14,9

Carbon monoxide ppm 11,4 18,9 42,7

Organic gaseous substances ppm 0,1 0,1 0,4

Nitrogen monoxide ppm 73,9 100,4 107,6
Page 6 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

Emission measurements 

 

Measurement results test: HKB_1032 

Calculation depending on CO2-measurement 

 

Suction start: hh:mm 08:05 09:05 10:05 11:05 12:05 13:05

 

Suction period: min 30 30 30 30 30 30

 

Suction gas sample: m3 0,526 0,530 0,543 0,537 0,537 0,528

 

Measured CO2-content: % 13,9 14,0 14,0 13,9 14,1 14,1

Calculated O2-content: % 6,6 6,4 6,4 6,6 6,3 6,4

 

Density of gas sample: 

Dry gas kg/Nm3 1,36 1,36 1,36 1,36 1,36 1,36

Humid gas kg/Nm3 1,30 1,30 1,30 1,30 1,30 1,30

Water content g/Nm3 81,32 81,97 82,26 81,42 82,52 82,39

 

Flue gas mass flow: 

Dry gas kg/kg 8,71 8,64 8,61 8,70 8,58 8,60

 

Velocity: 

At sampling point m/s 2,78 2,76 2,75 2,78 2,74 2,75

At probe head m/s 2,37 2,38 2,43 2,39 2,39 2,33

 

Dust content: 

separated mg 10,7 10,3 9,9 11,1 12,0 12,2

separated relating to 

sample volume mg/Nm3 24,3 23,4 22,0 25,0 27,2 28,3

13 % O2-content mg/Nm3 13,5 12,9 12,1 13,9 14,8 15,5

Evaluation 

 

 relating to relating to 

 applied energy O2-content of 

 10 % 13 % 

 mg/MJ mg/Nm3 mg/Nm3 

 

Dust 9 19 14 

Carbon monoxide (CO) 8 18 13 

Organic gaseous substances (OGC) <1 <1 <1 

Nitrogen oxides (NOx) 74 156 113 
Page 7 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.4.1 Output-related measurements 
Page 8 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.4.2 Flue gas composition 
Page 9 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.5 Investigatory heating tests with wood pellets at minimum heat output 

Number of test HKB_1030 

Name of boiler 

Nominal heat output (kW) 

Pellet heating boiler EVOTHERM P 200 ECO 

200 kW 

 

 

Minimum 

value 

Average 

value 

Maximum 

value 

Test conditions 

Start of test 26.08.2008 09:12 

End of test 26.08.2008 15:14 

Test duration [hh:mm] 6:01 

 

Ambient temperature °C 21,7 24,4 26,2

Outside temperature °C 19,5 23,6 26,7

Air pressure mbar 993

 

Test fuel, heat input 

Test fuel Wood pellets 08_0418 

Water content kg/kg 0,061

Ash content kg/kg 0,002

Carbon content kg/kg 0,476

Hydrogen content kg/kg 0,058

Oxygen content kg/kg 0,403

Calorific value of anhydrous 

and ash-free substance MJ/kg 19,1

Calorific value of test fuel MJ/kg 17,7

 

Applied fuel quantity kg 67,6

Hourly fuel quantity kg/h 11,2

Fuel heat input kW 55,3

 

Heat output, efficiency 

Water circulation kg/h 2546,8 2571,4 2598,5

Flow temperature °C 56,4 56,6 56,7

Return temperature °C 65,2 73,8 76,3

Temperature difference K 8,7 17,2 19,7

 

Heat output kW 51,6

Utilisation % 25,8

Boiler efficiency % 93,5

 

Measured values at flue gas 

measuring section 

Flue gas temperature °C 80,5 85,3 86,8

Manometric pressure Pa 8,0 11,1 18,2

 

Carbon dioxide % 2,0 7,3 10,0

Carbon monoxide ppm 100,5 193,8 677,4

Organic gaseous substances ppm 0,4 4,6 11,6

Nitrogen monoxide ppm 4,9 36,8 45,1
Page 10 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

Emission measurements 

 

Measurement results test: HKB_1030 

Calculation depending on CO2-measurement 

 

Suction start: hh:mm 09:15 10:15 11:15 12:15 13:15 14:15

 

Suction period: min 30 30 30 30 30 30

 

Suctioned gas sample: m3 0,527 0,534 0,539 0,530 0,532 0,525

 

Measured CO2-content: % 8,1 8,6 8,2 7,2 7,9 7,7

Calculated O2-content: % 12,5 12,0 12,5 13,4 12,7 12,9

 

Density of gas sample: 

Dry gas kg/Nm3 1,33 1,33 1,33 1,33 1,33 1,33

Humid gas kg/Nm3 1,30 1,30 1,30 1,30 1,30 1,30

Water content g/Nm3 49,79 52,56 50,19 44,68 48,76 47,62

 

Flue gas mass flow: 

Dry gas kg/kg 14,53 13,74 14,41 16,24 14,85 15,21

 

Velocity: 

At sampling point m/s 0,99 0,94 0,98 1,10 1,01 1,03

At probe head m/s 0,72 0,72 0,73 0,71 0,71 0,71

 

Dust content: 

separated mg 9,2 7,8 9,0 5,8 5,9 7,9

separated relating to 

sample volume mg/Nm3 20,4 17,7 20,1 13,1 13,4 18,0

13 % O2-content. mg/Nm3 19,4 15,8 18,9 14,0 13,0 18,0

Evaluation 

 

 relating to relating to 

 applied energy O2-content of 

 10 % 13 % 

 mg/MJ mg/Nm3

 mg/Nm3 

 

Dust 12 23 17 

Carbon monoxide (CO) 165 351 255 

Organic gaseous substances (OGC) 6 12 9 

Nitrogen oxides (NOx) 53 112 81 
Page 11 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.5.1 Output-related measurements 
Page 12 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.5.2 Flue gas composition 
Page 13 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.6 Surface 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). Temperatures were 

measured at 63 points on the boiler surface during the test at nominal heat output. The measurement results are shown in the following table and the table of measurements in appendix B: 

Parameter Value Unit 

Test number HKB_1032 

Ambient temperature 28,5 °C 

Flow temperature 75 °C 

Flue gas temperature 140 °C 

Heat output in the boiler circuit 204,9 kW 

Radiation losses from boiler 0,58 kW 

Percentage loss at nominal heat output 0,3 % 

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

above the ambient temperature. 

 

2.7 Water-side resistance of boiler 

The water-side resistance for the flow rates was determined at nominal heat output which 

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

Flow rate Temperature difference Water temperature Differential pressure 

[kg/h] [K] [°C] [mbar] 

8570 20 20,5 31,8 

14290 12 20,6 88,6 
Page 14 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

2.8 Electrical power consumption 

2.8.1 Average electrical power consumption at nominal heat output, minimum 

heat output, at ignition and on standby position 

Operating status Fuel 

Meas. 

duration

Electrical 

energy 

Average 

electrical power 

consumption 

Percentage of 

nominal heat 

output 

[min] [Wh] [W] [%] 

Nominal heat output 

Wood pellets

362 2940 488 0,2 

Minimum heat output 363 970 160 0,1 

Ignition procedure 27 320 712 

Standby position 60 10 10 

2.8.2 Electrical power consumption of main loads 

Load Power [W] 

Draught fan 160 

Secondary air fan 125 

Drive motor – stoker screw 248 

Drive motor – extraction screw 254 

Drive motor – cleaning of heat exchanger 77 

Ignition fan 1640 

3 SUMMARY OF RESULTS 

3.1 Heating tests 

The tested pellet heating boiler EVOTHERM P 200 ECO from the company Evotherm Heiztechnik Vertriebs GmbH, with a nominal heat output of 200,0 kW, was tested in the power range of 

51,6 to 204,9 kW using wood pellets compliant to ÖNORM M 7135:2000 having a diameter of 

6 mm and a water content of 6,0 % and 6,1 %. 

Since the boiler 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 303-5:1999 regarding the flue installation in order to ensure sufficient draught and to prevent 

sooting up of the chimney and condensation. 
Page 15 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

The results of the emission measurements are as follows: 

Nominal heat output Minimum heat output 

Test fuel [-] Wood pellets 

Water content [%] 6,0 6,1 

Heat output [kW] 204,9 51,6 

Fuel heat input [kW] 220,5 55,3 

Flue gas mass flow [kg/h] 409,5 186,5 

Load [%] 102,4 25,8 

Flue gas temperature [°C] 139,4 85,3 

Boiler efficiency [%] 92,9 93,5 

Carbon dioxide [%] 14,1 7,3 

[mg/MJ] 1) [mg/m3

]

 2) [mg/m3

]

 3) [mg/MJ] 1) [mg/m3

]

 2) [mg/m3

]

 3)

Dust 9 19 14 12 23 17 

Carbon monoxide 8 18 13 165 351 255 

Organic carbon <1 <1 <1 6 12 9 

Nitrogen oxides 74 156 113 53 112 81 

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

2) Emission values in mg/m3 (relating to 10 % O2, 1013 mbar, dry flue gas), according to 

ÖNORM EN 303-5:1999. 

3) Emission values in mg/m3 (relating to 13 % O2, 1013 mbar, dry flue gas), corresponding to 

various national and international requirements. 

3.2 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 303-5:1999. The 

requirements were fulfilled. 

3.3 Function check of device to extract excessive heat 

Since the tested pellet heating boiler EVOTHERM P 200 ECO from the company Evotherm 

Heiztechnik Vertriebs GmbH is equipped with a device to dissipate the residual heat as described in section 4.1.5.11.3 of ÖNORM EN 303-5:1999, the function check was performed. 

 

During the course of the checks on the temperature controller, the safety temperature limiter and 

the device to extract excessive heat no dangerous operating conditions arose neither with the 

water system nor the burner. 
Page 16 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

4 ASSESSMENT 

Based on the test results, one can hereby confirm that the 

Pellet heating boiler EVOTHERM P 200 ECO 

Test fuel: Wood pellets 

from 

Evotherm Heiztechnik Vertriebs GmbH 

 fulfils the requirements governed by the agreements in Art. 15 a BV-G relating to “Protective 

measures for small firings” (1998) and “Saving energy” (1995) and the requirements according 

to the 331. Regulation on firing systems - FAV (1997), § 23 (3). 

. 

For the 

factual correctness: 

Amtsdirektor Dipl.-HLFL-Ing. 

Leopold Lasselsberger m.p.

 For the 

report and tests: 

Amtsdirektor Ing. 

Harald Baumgartner m.p.

Head of the 

accredited test centre: 

Hofrat Dipl.-Ing. Dr. 

Johann Schrottmaier m.p. 

Wieselburg, 02/03/2010 

Translation: 09/03/2010 
Page 17 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

Appendix A (for information only) 

Legal requirements relating to small firing systems for biogenous fuels in Austria 

A.1 Agreement according to Art. 15 a B-VG concerning an amendment to the agreement according to Art. 15 a B-VG relating to protective measures for small firings (1998) 

Small solid fuel boilers must not exceed the following emission limits: 

Solid fuel boilers 

Emission limits [mg/MJ] 

CO NOx 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 

*) The NOx limit only applies to wood firings. 

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

of nominal heat output. 

A.2 Energy saving agreement according to Art. 15 a B-VG (1995) 

The efficiency of small solid fuel boilers should not fall below the following values: 

Small boilers used for solid fuel central heating: 

Manually loaded 

Up to 10 kW 73 % 

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

> 200 kW 83 % 

Automatically loaded 

Up to 10 kW 76 % 

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

> 200 kW 86 % 

These federal requirements are implemented in local state law. 
Page 18 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

A.3 Regulation on firing systems - FAV (1997) 

331. Regulation of the Federal Minister for Economic Affairs according to construction, method of operation, equipment and the admissible extent of emissions of heating systems for solid, liquid and gaseous fuels in industrial plants 

(Regulation on firing systems – FAV) 

Emission limits 

Wood firing systems 

 § 11. (1) Wood firing systems must not exceed the following emission limits (relating to 

13 % O2, 1013 mbar, dry flue gas) according to the highest allowable fuel thermal output: 

Pollutant 

Fuel thermal output (MW) 

≤ 0,1 > 0,1–0,35 > 0,35–2 > 2–5 > 5–10 > 10 

Dust mg/m3 150 150 150 *) 50 50 

CO mg/m3 800**) 800 250 250 100 100 

NOx mg/m3

Beech, oak, natural bark, brush 

wood, fir cones 

Other natural 

wood 

Residues of derived timber 

products or structural elements 

which have no 

binders, hardeners, coating materials and preservers with 

heavy metal or 

halogen compounds 

300 

250 

500 

300 

250 

500 

300 

250 

500 

300 

250 

500 

300 

250 

350 

200 

200 

350 

HC mg/m3 50 50 20 20 20 20 

*) until 31. December 2001: 100 

 from 1. January 2002 onwards: 50 

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

Flue gas losses (exhaust gas losses) 

 § 21. Firing systems which are only used for room heating or as boilers must not exceed the 

following flue gas losses according to the used fuel (burning material) during nominal load operation: 

1. for automatically stocked firing systems for solid fuels ....................................................... 19 % 
Page 19 of 19 

Pellet heating boiler EVOTHERM P 200 ECO 

BLT reference number: 027/07 

Appendix B (for information only) 

Surface temperature measuring points 

N1...N5 Floor area 

Type of boiler:

 Description of position of handle Temp. Temp.

[ °C ] [ °C ]

30

Temp. Temp. Temp. Temp. Temp. Temp.

NR. Area [ °C ] NR. Area [ °C] NR. Area [ °C] NR. Area [ °C] NR. Area [ °C] NR. Area [ °C]

1 A1 36,7 21 E1 28,5 41 I 1 31,9 61 M1 37,8 61 Q1 61 U1

2 A2 35,1 22 E2 28,5 42 I 2 30,1 62 M2 39,0 62 Q2 62 U2

3 A3 35,8 23 E3 28,6 43 I 3 28,9 63 M3 47,4 63 Q3 63 U3

4 A4 33,7 24 E4 44 I 4 29,9 64 M4 36,3 64 Q4 64 U4

5 A5 25 E5 45 I 5 28,4 65 M5 39,0 65 Q5 65 U5

Average 35,3 Average 28,5 Average 29,8 Average 39,9 Average Average

6 B1 30,9 26 F1 33,1 46 J1 48,7 66 N1 47,2 66 R1 66 V1

7 B2 30,9 27 F2 36,4 47 J2 36,2 67 N2 42,6 67 R2 67 V2

8 B3 30,6 28 F3 30,6 48 J3 45,3 68 N3 42,8 68 R3 68 V3

9 B4 30,4 29 F4 30,8 49 J4 48,7 69 N4 33,2 69 R4 69 V4

10 B5 30,4 30 F5 36,4 50 J5 70 N5 35,0 70 R5 70 V5

Average 30,6 Average 33,5 Average 44,7 Average 40,2 Average Average

11 C1 30,0 31 G1 31,5 51 K1 35,0 71 O1 71 S1 71 W1

12 C2 29,9 32 G2 33,7 52 K2 33,1 72 O2 72 S2 72 W2

13 C3 29,9 33 G3 31,1 53 K3 27,7 73 O3 73 S3 73 W3

14 C4 29,7 34 G4 29,9 54 K4 28,2 74 O4 74 S4 74 W4

15 C5 35 G5 39,2 55 K5 26,7 75 O5 75 S5 75 W5

Average 29,9 Average 33,1 Average 30,1 Average Average Average

16 D1 29,6 36 H1 33,6 56 L1 37,1 76 P1 76 T1 76 X1

17 D2 29,1 37 H2 30,9 57 L2 36,9 77 P2 77 T2 77 X2

18 D3 28,3 38 H3 29,3 58 L3 37,9 78 P3 78 T3 78 X3

19 D4 28,6 39 H4 35,2 59 L4 29,4 79 P4 79 T4 79 X4

20 D5 40 H5 30,6 60 L5 80 P5 80 T5 80 X5

Average 28,9 Average 31,9 Average 35,3 Average Average Average

EVOTHERM Heiztechnik Vertriebs GmbH

Handle – Front panel

Manufacturer of boiler:

Measuring point

description

 Meas. Meas.

Material

(ME / PO / KU)

Description of position of handle

 Meas. Meas. Meas. Meas.

Z1

Z2 Z4

ME Z3

description

Material Measuring point

(ME / PO / KU)

Pellet heating boiler EVOTHERM P 200 ECO