Boiler TECH DUO 18kW

Boiler TECH DUO 18kW

NN: 12381 / 12380
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Cost: Individual calculation
(After placing your order we will send you a non-binding offer containing delivery costs.)
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Nominal heating power:

- coal: 18 kW,
- pellets: 14 kW.
Efficiency: 89,1%

Warranty: 5 years for welded connections, 2 years for other elements, 1 year for the feeding screw


EKO-TECH boilers with an automatic fuel supply system are meant to be used in central heating installations as well as for warm utility water preparation in housing such as detached houses, stores, garages and utility buildings.

DUO means an automatic retort boiler with full function of the classical (normal) boiler. The boiler has an additional cast iron grate and an extra large combustion chamber which allows burning of all solid fuels. If necessary, the boiler can burn coal or wood, for a long, not limited time.

Advantages of the Tech DUO boilers:

- high efficiency,
- automatic functioning,
- quick and easy maintenance,
- economical fuel burning,
- smoke free and ecological burning,
- possibility to steer CH and DHW pumps,
- possibility to install a warm water exchanger.


Primary fuel Other
ekogroszek węgiel kamienny węgiel kostka drewno pelety
Coal 5-25mm Coal Coal Cubes Wood Pellets

Product specification

Power output 18 kW
Exhaust gas pipe diameter 158 mm
Efficiency 89,1 %
Size of heated surface 180 m²
Water capacity 51 L
Slow combustion 140 h
Height 1244 mm
Width 1132 mm
Depth 785 mm
Max. water temperature 85 °C
Max working pressure 1.5 bar
Required chimney draught 25 Pa
Minimum chimney section 190 cm²
Power supply 230V / 50Hz
Absorbed power 190 W


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