The compact COB wall mounted oil condensing boiler is equipped with a two-stage burner, i.e. it combines robust technology with high efficiency. You can operate it with low sulphur fuel oil or bio-oil (B10). The COB is available with four output ratings from 15 to 40 kW.
Suitable for your detached house or apartment building, it is available in four sizes with heating outputs of 15, 20, 29 and 40 kW
It has been developed for operation with low sulphur fuel oil (EL) and bio-oil (B10)
Efficient and economical: the COB achieves energy efficiency class A for central heating
Available as COB-TS combi boiler with suitable DHW cylinder
Environmentally friendly and resource-conserving thanks to clean, complete combustion
The two-stage blue flame burner draws its combustion air from the installation room or via a coaxial pipe from outside the building. This increases efficiency (through preheating of the air supply) and prevents the installation room from cooling down
The space saving COB can be mounted directly on the wall without any side clearances and takes up less than half a square metre of space
The perfect replacement for your old boiler, because it fits into every installation situation on the spot
It can be combined with various WOLF DHW cylinders and with a solar thermal system to also provide you with free heating and domestic hot water through the power of the sun
Straightforward and intuitive to operate with the BM programming unit or directly using the optional smartphone app
Five year warranty on the COB and two years on electrical and moving parts provide you with peace of mind for your investment