Press release #Thermotechnology

One step closer to the energy transition

Bosch presents hydrogen boiler for residential buildings

  • Conversion from natural gas to hydrogen possible at any time
  • H2-ready boiler a climate-neutral alternative in existing buildings

Anne Kaletsch >

Bosch Thermotechnology’s H2-ready boiler today shows how green hydrogen can secure tomorrow’s heat supply of buildings. The demonstration boiler was presented at the Bosch Thermotechnology site in Worcester.

H2-ready boiler accelerates the energy transition

Although hydrogen is increasingly being seen as an environmentally friendly energy carrier, also in Europe’s building sector, its implementation has so far been rather slow. By developing a hydrogen-compatible boiler, the developers at Bosch Thermotechnology are proving that boilers can be converted quickly and easily from the currently used natural gas to 100 percent hydrogen. A first demonstration boiler of the H2-ready boiler with a rated heat output of 30 kW has been in operation on a test stand since 2017. The H2-ready boiler can initially run on conventional natural gas or a hydrogen admixture of up to 20 percent. As soon as the local network has been switched over to hydrogen, the boiler can be converted to full use of the green gas within an hour by making just a few adjustments.
Most of the existing natural gas pipelines are almost ready to transport hydrogen, which means that existing infrastructures can be used when switching to the green gas. The operation of the H2-ready boiler is similar to that of an ordinary gas condensing boiler. The important difference lies in the energy source. Hydrogen can be stored indefinitely, thus ensuring constant availability for users. Green hydrogen is climate-neutral and therefore has the potential to lead the heating sector into a green future.

Hydrogen boilers as a solution for existing buildings

Renewable energy is becoming more and more popular in both new buildings and modernisation projects. Without additional adjustments such as insulation measures, however, the installation of climate-friendly heating solutions (e.g. heat pumps) in existing buildings is often complex and expensive. The new H2-ready boiler from Bosch makes the difference, as it requires no additional modernisation measures and enables carbon savings in every existing building. But climate protection does not mean compromising on heating comfort. The hydrogen boiler from Bosch can react quickly to fluctuating heating requirements due to weather and user conditions and offers the same high performance as a conventional gas condensing boiler. The H2-ready boiler fits into the same footprint as a current gas-condensing boiler, which is a great advantage especially in houses with limited space for the building services.

Bosch Thermotechnology is a leading European manufacturer of energy-efficient heating products and hot water solutions. In fiscal 2020, the company generated sales of about 3.5 billion euros (63 percent outside Germany) and employed almost 14,000 people. Bosch Thermotechnology has strong international and regional brands and manufactures a diversified product range in Europe, America and Asia.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 395,000 associates worldwide (as of December 31, 2020). The company generated sales of 71.5 billion euros in 2020. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. With its more than 400 locations worldwide, the Bosch Group has been carbon neutral since the first quarter of 2020. The basis for the company’s future growth is its innovative strength. At 129 locations across the globe, Bosch employs some 73,000 associates in research and development, of which nearly 34,000 are software engineers.

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