Boiler Tekla DRACO Duo Bio 50
A steel double-furnace boiler with a burner for pellets. The design of DRACO DUO BIO boiler is based on proven and very effective double-furnace exchanger. In BIO series boilers, there is a unique burner for pellets installed instead of a retort burner, which is made of heat-resistant steel. There are two holes on the grate of the burner, which provide the flow of air necessary for the combustion, supplied by a blower installed directly to the air mixer. The boiler exchanger is made of high quality attested steel 8 mm thick. A proper operation of the boiler is controlled by a modern electronic adjuster with clear LCD display.
The advantages of the boiler:
- Boiler exchanger made of high quality steel 8 mm thick
- Additional (emergency) combustion chamber with a water grate
- Completely automatic operation of the boiler (automatic ignition and extinguishing of a burner)
- Easy and fast operation and maintenance
- Return temperature adjustment mode through adjuster control on a four-way valve
- Room thermostat option
- Economical operation
- Low level of harmful substances in exhaust fumes
- High efficiency
Warranty:
- 5-year warranty for tightness of the exchanger
Fuel:
- Main: pellets
- Substitute: coal, wood
Product specification
Power output | 47 kW |
Weight | 717 kg |
Exhaust gas pipe diameter | 160 mm |
Efficiency | 90 % |
Boiler class (303-5:2012) | 3 |
Water capacity | 155 L |
Boiler heating surface | 5.8 m² |
Height | 1660 mm |
Width | 1880 mm |
Width without hopper | 1050 mm |
Exhaust pipe distance measured from the floor to its axis. | 1380 mm |
Depth | 1100 mm |
Max. water temperature | 90 °C |
Max working pressure | 1.5 bar |
Loading compartment dimensions | 670x670 mm |
Silo volume | 340 dm³ |
Required chimney draught | 20 Pa |
Outlet and inlet size | 2" inch |
Flue gas temperature | 100 ÷ 160 °C |
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