Hot water boilers

The proven Unimat type series is available in various output sizes and generates heat and hot water highly efficiently.

Bosch heating and hot water boilers can be used flexibly for heating demands from 650 to 38,000 kW. The sizing and equipment level of the products are designed to individual customer specification with many different options and variants available. The result: maximum energy efficiency, excellent conservation of resources and outstanding availability. The intelligent control technology offered by Bosch ensures convenient, fully-automatic boiler operation.

Unimat heating boiler UT-L

• 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

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 industrial, commercial and district heating applications with temperatures up to 190 °C

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

• Customer-specific design and future-proof technology

Unimat hot water boiler UT-HZ

• Double-flame tube hot water boiler for 13,000 to 38,000 kW with very high efficiency across all power ranges

• Particularly suitable for highly fluctuating heat and process heat demand

• Reliable solutions for heating plants and the manufacturing industry with temperature levels up to 225 °C

Future-proof steam generation with boiler systems from Bosch: 175 to 55,000 kg/h steam for industrial and commercial processes. Efficient, sustainable and reliable.

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 high outputs, through to electric boilers – we map the steam generation for all industrial and commercial processes. You receive a system that, thanks to particularly high energy efficiency, saves operating costs and, at the same time, reduces emissions in a manner that has a beneficial effect on the environment. With options to use CO2-neutral energy sources such as green hydrogen, biofuels or green power, we support you on your path to climate neutrality. The steam boiler systems from Bosch fulfil the demanding requirements for availability and reliability, and allow for seamless Industry 4.0 integration. This ensures the long-term sustainability of your steam generation.

 Electric steam boiler ELSB

• Generate up to 7.5 t/h steam in a highly efficient way using just electricity – no combustion, no emissions

• High steam quality, excellent dynamics, full flexibility

• Reduced expenditure: No flue gas, no fuel supply

 Universal steam boiler CSB

• Available in six output sizes, from 300 to 5,200 kg/h for pressures ranging between 0.5 and 16 bar

• High efficiency rating of up to 95.3% with integrated economiser and helical heat exchanger tubes

• Versatile design for use with different fuel types and as a multi-fuel firing unit (oil, gas, biogas, hydrogen)

 Universal Steam Boiler U-MB

• Three-pass boiler for a small to medium steam demand of 200 to 2,000 kg/h at up to 16 bar

• Lower space requirement for easy installation

• High level of efficiency due to the integrated economizer

 Universal steam boiler UL-S, UL-SX

• Very high efficiency for all output ratings from 1,250 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

 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 power range

• Reliable solution for highly fluctuating steam demand

• Project-specific equipment and optional components, for example superheated steam generation

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.

Generate up to 7.5 t/h steam in a highly efficient way using just electricity – no combustion, no emissions

With an over 99% efficiency level, the electrical heating system in the ELSB steam boiler surpasses all combustion systems. When using renewable power, its operation is completely CO2-neutral and particularly environmentally friendly. With the ELSB, you generate up to 7.5 t/h steam per appliance at a maximum of 24 bar – entirely independently of fossil fuels.

High steam quality, excellent dynamics, full flexibility

The steam chamber in the ELSB allows for a high level of steam quality as well as low residual steam moisture. Thanks to its variable output, the thyristor switching of the control achieves an extremely high level of efficiency across the entire load range. Furthermore, the output can be automatically adjusted to your requirements or to available surpluses in the self-generated electricity.

Reduced expenditure: No flue gas, no fuel supply

The ELSB electrical steam boiler does not emit any flue gas. The chimney, the flue gas after-treatment components and the infrastructure for the fuel supply are not required at the installation site. There is also no need for approval or maintenance for the flue system. This reduces the space requirement, as well as the duration and costs for the installation.

Application-specific design and particularly reliable operation

The electric boiler from Bosch is individually configured, manufactured and equipped for your specific application. Replacement elements are integrated into the heating assembly as standard in order to increase availability. Furthermore, the ELSB can be integrated into existing boiler systems and therefore allows for multivalent operation.

Smart boiler control and seamless system integration

The BCO boiler control system lets you easily control the ELSB using a touch display. The SCO system control also offers the option to integrate multi-boiler systems. Both Bosch controls are compatible with all common control systems and, as an option, come with protected remote access.

System equipment and service from a single source

In addition to the boiler equipment, Bosch offers components for water treatment, condensate management and energy saving for the ELSB. In accordance with your specific requirements, you receive a complete system from a single source. Bosch's industrial service is available for service-side advice and maintenance for your ELSB system.

The conventional fired boiler generates thermal heat or process heat while simultaneously utilising the heat potential from waste heat sources.

• Conventional fired heat generator with additionally integrated smoke tube pass for waste heat utilization

• Environmentally friendly generation of thermal heat or process heat through the utilisation of waste heat sources

• High supply reliability thanks to self-firing function

• Robust, reliable and durable

• Versatile design for use with different fuel types and as a multi-fuel firing unit (oil, gas, biogas, hydrogen)

• Ideal for combination with combined heat and power units or gas turbines

The heat recovery boiler uses accumulated flue gas heat to generate process steam.

• Environmentally friendly generation of steam from available waste heat

• The perfect addition to energy concepts involving combined heat and power generation

• High efficiency through efficient tubular heat exchanger and thermal insulation

• Additional efficiency gain thanks to optional integrated economizer

• Matched, modular system for easy planning and fast installation