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Press Release

MHG Heiztechnik GmbH

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Press Release

MHG Heiztechnik ______1

Rocket technology for home heating systems:
The Raketenbrenner® from MHG

Thirty years ago the development of the Raketenbrenner®represented a big step for heating technology. The MHG blue burner was the first of a new generation of oil burners which in contrast to conventional yellow burners was especially economical and eco-friendly in its use of heating oil.

The Raketenbrenner® incorporated a new kind of combustion principle which today is just as up to date as it ever was. The burner is especially suited to cost-efficient part-modernisation of existing boiler systems. The Raketenbrenner® has no difficulty meeting all the current limit values for home heating even in old systems. The RE 1H now represents the third generation of the tried and proven blue burner to be launched on the market by MHG. Since March 1997 MHG Heiztechnik has made the unique advantages of this burner also available in the context of a total high-tech oil heating system with cast-iron boiler, comfort regulator and hot water storage tank. And since March 2005 the Raketenbrenner® has also formed the core of the MHG EcoStar oil-fired condensing unit

Development history

In the 1970s against the background of dramatic increases in oil prices interest grew in burners with improved energy efficiency. The challenge went out to manufacturers. Professor Winfried Buschulte from the German Research Institute for Air and Space Travel (DLR), who for many years previous had been involved with the optimum energy efficiency for the American Space-Shuttle programme, was asked by MHG to help with the development of an economic burner.

Buschulte took on the challenge and developed what previously no one in the industry had been able to do: a functional system to convert heating oil into gas. Having registered the patent, MHG obtained the licence for sales in Europe, turned the system into a product they could distribute and launched it onto the market in 1997 under the brand name of Raketenbrenner®.

The innovative combustion principle

What is revolutionary about MHG’s blue burner? The hitherto common method of atomising heating oil and mixing it with air could not always guarantee optimum combustion. The result is soot which is deposited on the walls of the boiler and restricts the transfer of heat from the combustion chamber into the heating system; the unused heat escapes through the chimney: It only takes one millimetre of soot to increase the exhaust gas temperature by 50 degrees Celsius.

Buschulte’s idea consisted of transforming oil into gas: in the Raketenbrenner® the hot gases from the combustion zone are fed back to the diffuser nozzle, where they heat the oil mist in such a way that it turns into gas. This makes complete combustion possible and results in a permanent level of heat efficiency never before achieved since no soot is produced. Even the emission of other harmful substances such as nitrous oxide and carbon monoxide is reduced not only due to the reduction in the consumption of heating oil, but also by the perfect combustion.

So it was no surprise that in 1981 the Raketenbrenner® was awarded the ‘Blue Angel’ environmental label, the first oil burner in the FederalRepublic to do so. What is more, in March 1999 the RE 1H Raketenbrenner® was awarded the iF Ecology Award from the Industrial Design Forum, Hanover. The blue burner was one of 104 products from15 different countries entered for this award – one of the most internationally coveted – and selected not only for what they felt was the rocket burner's excellent design, but also because of the exceptional quality of the product combined with its top ecological performance.

The Raketenbrenner®: unique in the burner replacement market sector

The Raketenbrenner® is suited above all for the part-modernisation of existing systems. The installation of a modern burner and boiler unit is certainly the best solution, but when the home owner is not able to afford to replace a total system, replacing the burner by the Raketenbrenner® is a cost-efficient alternative.

The current version of the Raketenbrenner® represents the sum of experience from the last 30 years of burner technology. Through the use of a new type of mixing system and an air-suction sound absorber it was possible to greatly reduce nitrous oxide emissions and most importantly to decrease the operating noise compared to the original version. An increased blower pressure ensures that it can be applied universally to heating boilers of different generations and that it affords a particularly high level of operational reliability.

15 to 315 kW: complete blue burner range

In addition to the single stage RE 1H Raketenbrenner® for boiler outputs from 15 to 70 kW, MHG blue-burner technology offers the option of installation in multi occupancy dwellings and industrial and commercial buildings. The burners in the RZ 2 series cover boiler outputs between 55 and 185 kW.
The RZ 3 Raketenbrenner® is designed for boiler outputs from 195 to 315 kW.

MHG Heiztechnik

MHG Heiztechnik is one of the leading German providers of high-quality heating systems and components for oil, gas, pellets and solar systems and can look back on a tradition spanning 80 years. Developed from MAN Heiztechnik GmbH, we are an independent owner-operated company that has a financially strong and long-term-oriented co-partner in the form of Haspa Beteiligungsgesellschaft für den Mittelstand mbH at its side. As a result of particularly high quality standards and continuous investment in research and development, MHG Heiztechnik will continue to set standards with regard to economical, environmentally-friendly and future-proof heating systems.