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Selling since 1984
Piston feeder boiler STALMARK 30 kW

Piston feeder boiler STALMARK 30 kW

NN: 12511 / 12513
Available Options
- 48 months for tightness
- 24 months for electronic parts

Coal of a granulation from 5 to 40mm

Thanks to its construction Duo Boss is one of the most adjustable boilers with piston feeder. It can be used in both big and small boiler rooms.

Its combustion chamber has side piston feeder and water grate. The boiler is equipped with modern ST-609H controller used for central heating pomp, hot utility water, floor heating and circulating pomp.


Product specification

Power output 30 kW
Exhaust gas pipe diameter 180 mm
Weight 485 kg
Efficiency 89.2 %
Size of heated surface 300 m²
Water capacity 110 L
Boiler heating surface 2.5 m²
thickness of steel 6 - 10 mm
Height 1402 mm
Width 502 mm
Depth 1394 mm
Max. water temperature 90 °C
Max working pressure 1.5 bar
Loading compartment dimensions 300 x 273 mm
Size of the combustion chamber (width/depth/height) 300 x 150 x 290 mm
Silo volume 150 dm³
Required chimney draught 20 Pa
Min. chimney height 5.5 m
Outlet and inlet size 6/4 inch
Min. incoming water temperature 55 °C
Power supply 230V


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