Boiler Defro Optima Komfort 12 kW

Boiler Defro Optima Komfort 12 kW

Catalog number: KCO-OK-12|

OPTIMA KOMFORT boilers are equipped with horizontal-skew flue gas channels and are adapted for upper combustion of solid fuels. Operation process does not require use of electric energy - boilers are operating using natural draught and temperature is mechanically controlled using knob on lifting flap in ash-pan doors or using draught controllers (additional equipment). Boilers are factory adapted for installation of fan and electronic controller what significantly increases comfort. Large furnace chamber and arrangement of cleaning holes are only some of solutions ensuring high comfort.

- coal,
- mix of coal and fine coal,
- wood in pieces,
- edgings and chips.


- 4 years for tightness of the boiler's exchanger.
- 2 years for other elements.

Product specification

Power output 12 kW
Weight 250 kg
Exhaust gas pipe diameter 178 mm
Efficiency 80 %
Min. chimney diameter 160 mm
Size of heated surface 150 m²
Water capacity 53 L
Boiler heating surface 1.6 m²
Height 1530 mm
Width 550 mm
Depth 1045 mm
Max. water temperature 90 °C
Max working pressure 1.5 bar
Loading compartment dimensions 258x188 mm
Required chimney draught 22 Pa
Min. chimney height 6 m
Outlet and inlet size 1 1/2 inch
Min. incoming water temperature 65 °C


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