An automatic pellet boiler that complies with environmental standards of Class 5 and Ecodesign.
Boiler specification/type | IU | 10 | 14 | 20 | 25 |
Fuel | wood pellet with a diameter of 6 mm | ||||
Power range | kW | 3,0-10 | 4,2-14 | 6,0-20 | 7,5-25 |
Heating surface | m2 | 1,5 | 1,8 | 2,3 | 3,0 |
Energy efficiency class | A+ | A+ | A+ | A+ | |
Size of the heated area 1 | m2 | Up to 125 | Up to 175 | Up to 240 | Up to 300 |
One-time fuel filling 2 | kg | ~141 | ~141 | ~152 | ~199 |
Optimum thermal efficiency | % |
~92,9-94,7 |
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Max. permissible working pressure | bar | 1,5 | |||
Required exhaust gas draft | mbar | 0,20 | 0,23 | 0,26 | 0,28 |
Supply water temperature min/max. | °C | 65/80 | |||
Boiler weight 3 | kg | ~340 | ~350 | ~372 | ~467 |
Boiler water capacity | l | 65 | 63 | 71 | 103 |
Cross-section of the chimney | cmxcm | 14×14 | 14×14 | 14×14 | 15×15 |
Cross-section of the chimney | Ømm | 160 | 160 | 160 | 170 |
Minimum height of the chimney | m | 6 | 6,5 | 7 | 7,5 |
Diameter of the supply/return connection | inch |
GW 1 ½” |
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Drain port diameter | inch | ½” | ½” | ½” | ½” |
Flue diameter | mm | 159 | 159 | 159 | 159 |
Height to the bottom edge of the exhaust outlet. | mm | 995 | 995 | 1045 | 1100 |
• Innovative ADAPTIVE Control with the use of a turbine flow meter, ensuring optimal adjustment of fan and fuel feeder parameters.
• Fan control (monitoring of the airflow required for proper combustion) and fuel feeder control.
• Control of the heating pump, hot water pump, and valve.
• Control of additional equipment.
• Control of a single mixing valve.
• Automatic ignition and shutdown of the boiler.
• Weekly scheduling control.
• Internet-based control (remote ignition,
and shutdown) – an optional feature.
• Option to connect a room controller.
with RS or traditional communication.
• Option to connect an ST-65 GSM module.
• Ignition with an electric heater.
• Option to control an additional valve.
mixing using the DEFRO MZ module.
• Large color graphical display.
• Control panel placed in a console with an adjustable tilt angle.
• Temperature sensors for heating, hot water, valve, and exhaust gases.
• Photoreceptor (flame sensor).
• Equipped with a thermal protection system for the burner.