Boiler Defro Optima Komfort Plus 35 kW

Boiler Defro Optima Komfort Plus 35 kW

Catalog number: KCO-KP-35|
Available Options

Structure of OPTIMA KOMFORT PLUS boilers ensures two-system operation and combustion of all types of fuels - fines in case of firing from top (with operation time up to 20 hours) and the remaining solid fuels (coal, wood, mix of coal and fines) in case of firing from bottom. Electronic control of air blowing for combustion, allowing more precise temperature adjustment and increasing servicing comfort, are used in the boilers. Multi-point air supply system to the fuel charing zone increases stability and efficiency of boiler operation.

- 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 35 kW
Weight 480 kg
Exhaust gas pipe diameter 178 mm
Efficiency 81 %
Min. chimney diameter 200 mm
Size of heated surface 390 m²
Water capacity 111 L
Boiler heating surface 3.9 m²
Inner metal sheet thickness 6 mm
Height 1640 mm
Width 750 mm
Depth 1215 mm
Max. water temperature 85 °C
Max working pressure 1.5 bar
Loading compartment dimensions 358x188 mm
Required chimney draught 31 Pa
Min. chimney height 8 m
Outlet and inlet size 1 1/2 inch
Min. incoming water temperature 65 °C


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