Research and Innovation

Our research
ensuresyour long-term competitiveness.

Burners convert the chemical energy locked inside fuel into heat. This is the essence of every fuel-based heating system. To best equip you to meet your future needs, we’ve been doing research and development in diverse fields over the course of many years. You, too, can use our know-how to your competitive advantage.

Quality and Faultless Operation
We are capable of simulating extreme operating conditions in our laboratory. The knowledge we obtain during this testing process flows directly into our products. As a result, our burners are well-engineered, reliable and durable.

Energy Efficiency
Our modern mixture preparation systems are designed for fuel combustion at low excess air levels. This ensures the heating equipment is highly efficient.

Reducing Emissions
To reduce emissions, we are increasingly integrating blue flame burner mixing equipment into our burners. These systems prevent the formation of soot, vaporising the fuel spray that emanates from the nozzle by mixing in hot flue gases before the flame is reached. Recirculating the flue gases also significantly decreases the formation of NOx gases.

Use of Renewable Energies/Biofuels
Together with our partners, we’ve been involved in numerous field tests assessing the usability of regenerative biofuels for many years. After evaluating the test results, we’ve approved numerous regenerative biofuels for our products.

Burner Starting Behaviour
Our burners are equipped with specially-developed blowers featuring extremely high pressure resistance. This makes our burners best suited for fireboxes with high counter pressures.

Mixture Preparation Process for the Smallest Fireboxes
The equipment industry has often built fireboxes smaller than the DIN EN 267 specifications regarding minimum dimensions for heating chambers. This results in an increased thermal load for the mixing equipment and injection system. Unfavourable flow patterns also make it more difficult to stabilise the flame. Consequently, such units require special attention with regard to material selection, the cooling of critical components and the effect of the mixing equipment on the flame’s combustion behaviour.

Energy-Saving by EC Motors
To power our combustion air blowers, we use especially energy-efficient EC motors in our two-stage and modular burners. The same applies to the powering of geared pumps in our modulating burners.

Modulating Reciprocating Pump
The reciprocating pump’s volumetric dosing function enables direct control and detection of the oil mass flow. We’ve also disconnected the oil circuit ventilation from the dosing function of the pump. For smaller combustion capacities, high volumes of circulating oil are carried through a combination filter/ventilator.

Due to the integrated and generously proportioned gas separator, only 100% gas-free oil reaches the nozzle even when there is massive gas input resulting from leaky supply lines or outgassing oil. This represents a significant advantage compared to the gear pumps currently used.

Burner faults due to gas bubbles in the supply lines —typical of older oil installations — are safely prevented by this new technology. The pump’s drive and conveying concept also reduces electric energy consumption.

HLM 35

HLM 35 – Modulating Blue Burner with Reciprocating Pump

  • Modulation range 3:1
  • Volumetric oil dosing
  • Electronic fuel/air mixture
  • Not prone to the formation of air bubbles in the oil supply
  • Intuitive operating and control concept through the display
  • Motor pump unit with integrated drive technology
  • Low electric energy consumption
Red Box Forschung

CATVAP – Catalytic Vaporiser Burner
Together with the Fraunhofer Institute for Solar Energy Systems in Freiburg and another industrial partner, we’re developing a premixing line burner for liquid fuels. In a catalytic process arranged before combustion, some of the combustion air is used to trigger a preliminary fuel reaction. The resulting heat inside the catalytic converter completely vaporises the fuel. After the remaining combustion air is mixed in, the whole mixture is combusted using a conventional line burner. As a result, it’s possible to employ the equipment platform used for condensing boilers for liquid fuels as well. This is particularly advantageous due to the heating equipment’s high modulation range, low emissions, reduced lower performance limit, low noise level and compact construction.

High-Modulating Burners (Oil/Gas) for Compact Fireboxes in Heat Pumps
The massive reduction in CO2 emissions from buildings is one of the most important goals of climate policy. Our central approach is to significantly reduce specific CO2 emissions (decarbonisation) from heating technologies. Besides electrically-driven heat pumps, thermally-driven heat pumps are also a sensible alternative, especially for existing buildings.

For large-scale development of the heating market with thermally-driven heat pumps, high feed temperatures (>50°C) are just as important as the quick loading of hot water tanks. According to the present state of development, such heat pumps can achieve coefficients of performance totalling >1.5 in existing buildings.

To achieve this goal, we have been part of a research project together with the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg and other industrial partners. In this field, we are also cooperating directly with heat pump providers.