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Boiler Tekla DRACO Duo Bio 75

Boiler Tekla DRACO Duo Bio 75

TEKLA
Available Options

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 69 kW
Weight 890 kg
Exhaust gas pipe diameter 145 mm
Efficiency 90 %
Boiler class (303-5:2012) 3
Water capacity 155 L
Boiler heating surface 7.6 m²
Height 1820 mm
Width 2250 mm
Width without hopper 1410 mm
Exhaust pipe distance measured from the floor to its axis. 1455 mm
Depth 1130 mm
Max. water temperature 90 °C
Max working pressure 1.5 bar
Loading compartment dimensions 850 x 850 mm
Silo volume 500 dm³
Required chimney draught 25 ÷ 35 Pa
Outlet and inlet size 2" inch
Min. incoming water temperature 55 °C
Flue gas temperature 130 ÷ 200 °C

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