"Hydrogen is a key element of sector coupling. In the sectors in which electricity from renewable energy can't be used directly, green hydrogen and its derivatives (Power-to-X) open up new decarbonisation pathways ..."

Logano plus SB625 with Dunphy burner: Hydrogen strategy.
Hydrogen strategy of the German government.
Ziel:
- germany-wide, efficient hydrogen core network that can be expanded and quickly implemented by the target date of 2032
focus on power plants, industry and urban areas
Current planning status:
- total length in 2032: Approx. 9000 km
- 60 % changed gas cables
- hydrogen core network approved by the German Federal Network Agency

Logano plus SB625 with Dunphy burner: H2 in GEG.
The German Buildings Energy Act (GEG).
Hydrogen heating as a fulfilment option.
- a heating system powered by hydrogen is a simple fulfilment option in accordance with GEG Section 71 (3)
- the requirements of the German Buildings Energy Act (GEG) can be fulfilled if the hydrogen heating is powered by at least 65 % green or blue hydrogen
- in addition, gas heat generators that use natural gas and can be converted to 100 % hydrogen also comply with GEG if:
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- the heating system is in the expansion area of the hydrogen network and
- the gas distribution network operator and municipality have published a "binding roadmap" (by 31st June 2028)
Logano plus SB625 with Dunphy burner: Subsidies.
German Federal Funding for Efficient Buildings (BEG).
Funding of hydrogen-capable heating systems – according to Federal Funding for Efficient Buildings – Individual Measures (BEG EM) 2024.
- hydrogen-capable heating systems (100 %) are eligible for a 30 % basic-level subsidy
- only the additional investment costs necessary are eligible costs
- these are accepted as a flat rate with 5 % of the total costs
Logano plus SB625 with Dunphy burner: Subsidies.
German Federal Funding for Efficient Buildings (BEG).
100 % H2 ready as part of German Federal Funding for Efficient Buildings for 2024.
- hydrogen-capable heating systems under BEG EM are gas-condensing systems that
- during commissioning, are powered directly with 100 % green or blue hydrogen or
- meet the requirements of German Buildings Energy Act (GEG) Section 71k and can be converted to operation with 100 % hydrogen using conversion kits or retrofit sets. Under Section 71k of GEG, the building must be demonstrably located in an expansion area of a hydrogen network and there must be a roadmap for the complete supply of hydrogen by the distribution network operator (see German Federal Funding for Efficient Buildings: List of technical FAQs – BEG EM (Version 6.1)).
Logano plus SB625 with Dunphy burner: Product.
7 boiler dimensions with an output range from 145 kW to 640 kW.
- retuned and preset boiler-burner combination for 100 % hydrogen operation (H2)
- alternative operation with 100 % natural gas (G20) possible (e.g. as a backup or if no (H2) is available)
- low NOx emission levels (ERP, < 56 mg/kWh) for natural gas and hydrogen operation thanks to flue gas recirculation (FGR)
- commissioning, service and maintenance from a single source (Bosch Industriekessel)
- burner CE-certified for hydrogen operation
Hydrogen solution for commercial applications.
Transformation:
Transformation of a tried-and-tested technology towards CO2-neutral combustion.
H2-ready:
Designed for operation with 100 % green hydrogen.
Emission reduction:
Up to 350 tonnes of CO2 are saved per boiler per year compared with natural gas firing.
Infrastructure alternative:
Possible alternative technology to "hydrogen islands" or for critical electrical infrastructure.
Logano plus SB625 floor-standing condensing boiler
- thanks to the low hydraulic resistance, the boiler can be integrated into any new or existing system without any difficulty
- hybrid system with heat pumps or can be combined with a combined heat and power unit
- guarantee of up to 10 years on the boiler block
Logamatic 5311
- state-of-the-art system control with maximum comfort: The main controller for boiler-burner combinations
- modular, digital main controller for medium and large boiler systems
- premium, hard-wearing 7-inch capacitive touch screen
- IP and Modbus connectivity
Dunphy dual fuel burner for 100 % H2 or 100 % natural gas operation.
- equipment fully ready to connect
- burners are tested warm and preset to the relevant boiler dimensions (natural gas and hydrogen)
- low emissions: NOx < 56 mg/kWh (< 40 mg/kWh possible) for natural gas and hydrogen
- up to 350 tonnes of CO2 are saved per boiler per year compared with natural gas firing
- service from a single source by Bosch Industriekessel – one contact partner (commissioning and maintenance)
- it is also possible to retrofit existing systems with Logano plus SB625 boilers
- H2 gas line (100 mbar)
- natural gas line (20/40 mbar)
- flue gas recirculation (FGR) DN 100, PN 16, stainless steel
- flap for FGR control
- mounting frame (option of left or right design)
- burner plate incl. gaskets and screws
- dual-fuel burner (preset to boiler dimensions) incl. speed control

Logatherm WLW376: Product.
Logatherm WLW376 air to water heat pump
- highly-efficient modulating heat pump with R290 refrigerant
- seven output sizes from 30 to 61 kW (for A-7/W35)
- can be cascaded up to 16 times (up to 1 megawatt!) for higher energy demands
- for new buildings and modernisations: Flow temperature up to max. 75 °C
Logatherm WLW376: Cascade.
Logatherm WLW376 air to water heat pump
- compact cascade set-up with optional hydraulic connection set for up to six cascades (max. 366 kW)
- various outputs can be cascaded
- the same output as a comparable individual machine, but with:
- reduced costs for transport, crane, etc.
- smaller safety area because there is a smaller refrigerant charge for each refrigerant circuit
- protection against failure/redundancy and advantages in partial load operation
Steam boiler: Overview.
Boiler systems from 175 to 55,000 kg/h steam for diverse processes.
The industrial boiler experts at Bosch configure and manufacture your steam boiler system in accordance with your individual requirements. From compact boilers and double-flame tube boilers for a high output, through to electric boilers – we map the steam generation for all industrial and commercial processes. All of the industrial boilers can be converted to climate-neutral fuels, making them future-proof.
Steam boiler: ELSB.
Electric steam boiler ELSB
The ELSB (Electric Steam Boiler) is a highly efficient, electrically heated steam generator for 350 to 7,500 kg/h steam at up to 24 bar. When operating with green energy, the boiler allows your company to achieve a CO2-neutral steam supply.
Steam boiler: ELSB.
Electric steam boiler ELSB
- generate up to 7.5 t steam per hour in a highly efficient way using just electricity – no combustion and no emissions
- high steam quality, excellent dynamics, full flexibility
- reduced expenditure: No flue gas and no fuel supply
Steam boiler: ELSB.
Electric steam boiler ELSB
- application-specific design and particularly reliable operation
- smart boiler control and seamless system integration
- system equipment and service from a single source

100 % electric, zero emissions: The ELSB steam boiler by Bosch.
Bosch Industrial Boilers presents the ELSB electrical steam boiler: Available in six different capacities for 350 to 7000 kg of steam produced per hour, the electric boiler is perfect for virtually any industrial application. In combination with regenerative power, the system generates zero emissions. The ELSB also achieves an outstanding efficiency rating of 98.5 % – and it’s compatible with water treatment and control components in the Industrial Boilers portfolio.
Steam boiler: CSB.
CSB universal steam boiler
Ultra-compact steam boiler producing up to 23,600 kg of steam per hour, built to EN 12953 standard. The CSB excels with its high efficiency rating and its low emissions already comply with future requirements of the MCP Directive (EU) 2015/2193.
Steam boiler: CSB.
CSB universal steam boiler
- large output range from 300 to 23,600 kg/h for pressures ranging between 0.5 and 16 bar
- high efficiency thanks to the integrated economiser and helical heat exchanger pipes
- versatile design for use with different fuel types and as a multi-fuel firing unit (oil, natural gas, biogas, up to 20 % hydrogen)
Steam boiler: CSB.
CSB universal steam boiler
- compliant with even strict emission levels when used in combination with our burners and controls
- easy-to-remove retractable back chamber makes cleaning, maintenance and inspection simple
- easy to operate with CSC boiler control (up to 4000 kg/h) and BCO

The CSB universal compact steam boiler – increased output up to 23,600 kg/h.
Ultra-compact steam boiler producing 300 to 23,600 kg of steam per hour, built to EN 12953 standard. The CSB excels with its high efficiency rating and its low emissions already comply with future requirements of the MCP Directive (EU) 2015/2193.
Steam boiler: UL-S(X)
Universal steam boiler UL-S, UL-SX
The UL-S is a highly efficient steam boiler with a three-pass design for 1250 to 28,000 kg of steam per hour at up to 30 bar. With impressively low emissions and its ability to be converted for biofuels or hydrogen, the UL-S is designed to be future-proof. Also available as a waste heat boiler to make cost-effective and environmentally friendly use of waste heat sources, for example in combination with a combined heat and power unit or gas turbines.
Steam boiler: UL-S(X)
Universal steam boiler UL-S, UL-SX
- very high efficiency for all output ratings from 1250 to 28,000 kg/h for low running costs and emissions
- complete system with customer-specific equipment and future-proof technology
- extremely well proven design "Made in Germany", highly durable and easy to maintain
Steam boiler: UL-S(X)
Universal steam boiler UL-S, UL-SX
- consistent steam quality for a reliable supply
- custom designs for heat recovery boilers and hybrid boilers or for superheated steam
- smart boiler control and seamless system integration with digital assistants

UL-S universal steam boiler: Maximum efficiency for minimal running costs for all outputs.
Maximum efficiency with the lowest running costs for all output ratings from 1250 to 28,000 kg/h.
Steam boiler: UL-S(X)
Universal steam boiler ZFR, ZFR-X
The ZFR is a highly efficient double-flame tube boiler with a three-pass design for 18,000 to 55,000 kg of steam per hour at up to 30 bar. Two independent firing units and flue gas paths offer very high flexibility thanks to a doubled modulation range.
Steam boiler: ZXR(X)
Universal steam boiler ZFR, ZFR-X
- double-flame tube boiler for 18,000 to 55,000 kg/h with very high efficiency across the entire output range
- reliable solution for highly fluctuating steam demand
- project-specific equipment and optional components, for example for superheated steam generation
Steam boiler: ZXR(X)
Universal steam boiler ZFR, ZFR-X
- future-proof with options for low-NOx and CO2-neutral operation
- smart boiler control and seamless system integration
- stable supply and durable design "Made in Germany"

The powerful ZFR universal steam boiler
The ZFR steam boiler by Bosch impresses with its performance and considerable control range. It produces 18,000 to 55,000 kg of steam per hour at up to 30 bar. Two independent firing units and flue gas paths offer very high flexibility thanks to a doubled modulation range. A highly-efficient solution in a double-flame tube design for heavy industry or power plants. Also available in a low-NOx design or for using alternative fuels.
Hot water boilers and floor standing boilers: Overview.
Boiler systems for DHW and hot water from 650 to 38,000 KW.
The sizing and features of the boilers and hot water boilers are designed specifically for the customer with a wide range of options and variation possibilities. The result is achieving maximum energy efficiency, conserving resources and reaching the highest levels of availability. All of the industrial boilers can be converted to climate-neutral fuels, therefore making them future-proof.
Hot water boiler and floor-standing boiler: ELHB
ELHB electric boiler for heating energy and hot water
The ELHB electric boiler for low voltage generates hot water and heating energy with outputs of up to 5.5 MW per appliance at up to 16 bar. A versatile power-to-heat solution from Bosch for local and district heating, building heating, process heat or as redundancy for other energy generators.
Hot water boiler and floor-standing boiler: ELHB
ELHB electric boiler for heating energy and hot water
- heat that is generated 100 % electrically
- reducing CO2 emissions: Using surplus power from photovoltaics, hydropower and wind power
- electric heat system from a single source and simple system integration
Hot water boiler and floor-standing boiler: ELHB
ELHB electric boiler for heating energy and hot water
- fast availability of heat and flexible control behaviour for a demand-based supply
- made in Germany: Excellent quality and safety standards from Bosch
- increase system availability and operational safety with reliable technology
Hot water boiler and floor standing boiler: UT-L
Unimat UT-L/S825L heating boiler
The UT-L/S825L is a particularly reliable and efficient heat generator with outputs from 650 to 25,000 kW at up to 16 bar. The design complies with the Gas Appliances Regulation. The heating boiler offers high performance and is extremely compact.
Hot water boiler and floor standing boiler: UT-L
Unimat UT-L/S825L heating boiler
- highly efficient heating energy from 650 to 25,000 kW with very high efficiency up to 105 %
- compact design for easy positioning and effective use of heat
- flexible application and low return flow temperature of 50 °C possible
Hot water boiler and floor standing boiler: UT-L
Unimat UT-L/S825L heating boiler
- customised control concept and optional real-time monitoring
- future-proof heat supply and options for CO2-neutral operation
- proven and durable Bosch system from a single source

UT-L hot water boiler – compact and powerful.
The UT-L floor-standing boiler by Bosch optimises your energy costs and achieves very high efficiency up to 105 %.
Versatile for use in district heating and commercial applications.
Hot water boiler and floor standing boiler: UT-M.
Unimat hot water boiler UT-M
The highly efficient UT-M is a three-pass boiler designed for 750 to 19,200 kW of heating at up to 16 bar. Its various output sizes and temperature ranges up to 190 °C enable flexible operation for countless process heat and heating applications.
Hot water boiler and floor standing boiler: UT-M.
Unimat hot water boiler UT-M
- efficient heat and process heat from 750 to 19,200 kW for low running costs and emissions
- compact design for easy positioning and quick heating
- flexible use for industry, commerce and combined heat and power stations with temperatures up to 190 °C
Hot water boiler and floor standing boiler: UT-M.
Unimat hot water boiler UT-M
- project-specific control solutions and optional real-time monitoring
- complete system from a single source, low-emission or CO2-neutral customer-specific operation possible
- proven and maintenance-friendly construction for a long service life and reliability
Hot water boiler and floor standing boiler: UT-H(Z).
Unimat UT-H, UT-HZ hot water boilers
The UT-H or UT-HZ is an energy-efficient hot water boiler with outputs from 820 to 18,300 kW or from 13,000 to 38,000 kW at up to 30 bar. Suitable for processes in high temperature and pressure ranges. Two independent firing units and flue gas paths create a double control range for individual heat consumption.
Hot water boiler and floor standing boiler: UT-H(Z)
Unimat hot water boiler UT-H
- high-pressure hot water boiler from 820 to 18,300 kW with very high efficiency levels
- versatile operation for the manufacturing industry and district heating grids with temperature levels up to 225 °C
- custom designs for heat recovery boilers
Hot water boiler and floor standing boiler: UT-H(Z)
Unimat hot water boiler UT-HZ
- double-flame tube hot water boiler from 13,000 to 38,000 kW with very high efficiency across all output ranges
- particularly suitable for highly fluctuating heat and process heat demand
- reliable solution for combined heat and power stations and the manufacturing industry with temperature levels up to 225 °C

The UT-HZ hot water boiler for high heat demand.
The double-flame tube design of the Unimat UT-HZ by Bosch offers total flexibility in the high output range from 13,000 to 38,000 kW at up to 30 bar. Two independent firing units and flue gas paths create a double control range for individual heat consumption. A particularly energy-efficient and reliable heat supply for combined heat and power stations and the manufacturing industry. Also available in a low-NOx design or for using alternative fuels.