Clean heating with cleanEfficiency 2.0
KWB heating systems meet stringent European environmental standards thanks to cleanEfficiency 2.0 technology.
Clean, modern and innovative heating
For more than 30 years, KWB experts have been developing innovative solutions for cleaner energy supply. One of the most important advances in KWB heating systems has been the continued development of combustion technology, with the aim of reducing emissions and particulate matter even further. This is what the cleanEfficiency 2.0 label stands for.
cleanEfficiency 2.0 stands for
Exceptionally low emissions
Particulate emissions have been reduced to as little as 2.5 mg.
High efficiency
The innovative burner design with cleanEfficiency 2.0 technology ensures efficient operation.
Economical operation
Fuel is used effectively while efficiency remains consistently high.
Precisely coordinated components
The design and control elements work together as one system.
Even lower emissions and particulate matter
After many months of research, KWB succeeded in reducing particulate emissions to below 2.5 mg. KWB heating systems equipped with this technology not only meet stringent European environmental standards but go beyond them. They also meet and outperform the requirements of the EU Ecodesign Directive for emissions, efficiency and energy consumption.
At the heart of the technology
The newly developed burner concept with cleanEfficiency 2.0 technology makes KWB heating systems even cleaner. Three different burner systems are used across KWB’s premium heating range. Each is designed to maintain calm, stable combustion. The fuel is moved as little as possible, helping to keep emissions to a minimum.
Clean heating with the KWB underfeed burner
In pellet operation, the generously sized burner plate creates a stable bed of embers and allows the pellets to burn out completely. Automatic ash removal from the burner plate prevents ash from falling back into the combustion process. Cyclone technology directs dust particles outwards and into the ash container.
cleanEfficiency 2.0 technology significantly reduces the formation of particulate matter inside the combustion chamber without changing the underlying burner system. A deeper bed of embers allows the pellets to burn more efficiently. The fine particles are less likely to evaporate, bind with the ash and are then removed with it.
KWB crawler burner for varying fuel qualities
The robust KWB crawler burner is used in both pellet and wood chip heating systems. Built to industrial standards, it moves the fuel through the combustion process in a similar way to a conveyor belt. The moving grate handles varying fuel qualities with ease.
Pellets and wood chips burn particularly cleanly because the bed of embers remains stable and no dust particles are stirred up. The crawler burner moves beneath the fuel rather than moving the fuel itself. The combustion process has been refined to achieve very low emissions.
Optional flue gas recirculation takes part of the cooled flue gas produced during combustion and feeds it back into the combustion chamber. This cools the bed of embers on the grate and further reduces particulate emissions.
KWB rotating grate burner with cyclone combustion chamber
The KWB rotating grate burner with cyclone combustion chamber provides calm, controlled combustion in higher-output pellet and wood chip heating systems.
Its distinctive rotating grate system feeds the fuel sideways into the pre-combustion chamber and onto a rotating grate. As the grate turns, the fuel moves through the combustion chamber and burns out fully before a dedicated cleaning system removes the ash.
With cleanEfficiency 2.0 technology, the rotating grate principle uses staged combustion air. Combined with the cyclone combustion chamber, this ensures effective fuel use, consistently high efficiency and low emissions.
Simple operation with KWB control technology
The KWB Comfort 4 control concept maintains optimum combustion conditions, low emissions and economical operation. Its intelligent control logic responds quickly to changes in combustion, including those caused by variations in fuel quality.
Interested in a KWB heating system?
KWB offers an energy system tailored to your needs. A KWB heating adviser will visit your property and work with you to identify the right solution.