Boiler TECH DUO 22kW

Boiler TECH DUO 22kW

NN: 12383 / 12386
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Container on the right: 6 items

Container on the left: 4 items

Container on the right: 6 items
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Available Options



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: 22 kW,
- pellets: 17 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 ZP 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.

The KRS Tech DUO 18 kW boiler has the 5 emission class, so it has no additional grate and therefore no alternative fuels to burn.

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 22 kW
Exhaust gas pipe diameter 158 mm
Efficiency 89.1 %
Size of heated surface 220 m²
Water capacity 58 L
Slow combustion 54 h
Weight of boiler with feeder 353 kg
thickness of steel 6 mm
Height 1106 mm
Width 1170 mm
Depth 778 mm
Max. water temperature 85 °C
Max working pressure 1.5 bar
Required chimney draught 20 Pa
Minimum chimney section 225 cm²
Outlet and inlet size 6/4" inch
Power supply 230V / 50Hz
Absorbed power 90 W
Warranty 60 months


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