Gas-fired hot water or industrial central heating boiler

Gas-fired hot water and industrial central heating boilers are among the most widely used solutions for industrial process and building heating. They combine high operational reliability with proven technology and can be used for a broad range of applications.

The Callens Group designs, builds and integrates hot water and industrial central heating installations tailored to your production environment. In doing so, our specialists look at your heat demand, energy consumption, emission targets and future expansion plans. This ensures that you get an installation that combines efficiency, reliability and flexibility.

Discuss the possibilities

When is a gas-fired hot water or industrial central heating boiler worthwhile?

For many companies, natural gas remains a reliable and economically attractive energy source to meet their heat demand. Gas-fired hot water and industrial central heating boilers are particularly suitable for applications requiring temperatures between 70 °C and 200 °C.

Thanks to their rapid heat-up, simple control and high availability, they are an efficient solution for both process heating and building heating.

Reasons to consider a hot water or industrial central heating boiler:

  • You have a natural gas connection or existing gas infrastructure.
  • You have a continuous demand for heat.
  • You want to reach temperatures up to around 200 °C.
  • You are looking for a reliable technology with a proven track record.
  • You want to respond quickly to changing heat demands.
Poppies Bakeries CV Restwarmte Warmtewisselaar Buffervat PRJ250188 1

Output

up to 20 MW

Process temperature

up to 200 °C

Operating pressure

0.5 to 30 barg

Efficiency

95 %

Technical specifications of gas-fired hot water or industrial central heating boilers

The right installation is determined by the required output, the desired temperature, the consumption profile and the available fuel supply.

In addition, factors such as operating hours, peak loads, energy recovery options and future expansions also play an important role.

Our specialists analyze these parameters and design an installation that perfectly fits your production process.

BENEFITS

Advantages of a gas-fired hot water or industrial central heating boiler

Gas-fired installations remain the benchmark for reliable heat production for many companies. They combine high energy efficiency with broad applicability and relatively simple installation.

High operational reliability

A proven technology that delivers reliable heat for industrial processes and buildings, day after day.

Fast heat-up

Thanks to direct combustion, the installation can reach the required temperature quickly and respond smoothly to changing heat demands.

High energy efficiency

Modern burners, economizers and energy recovery ensure optimal fuel efficiency.

Low maintenance and operating costs

Thanks to their relatively simple operation, maintenance and operation are usually limited.

Broadly applicable

Suitable for process heating, building heating, drying processes, heat exchangers and countless other applications.

Flexible control and modulation

Thanks to advanced control technology, modern installations can precisely match their output to the current heat demand.

When do you choose an industrial central heating boiler and when a hot water boiler?

The choice is largely determined by the required temperature level.

An industrial central heating boiler:

Industrial central heating boilers are usually the most attractive solution for temperatures up to around 110 °C. Thanks to their simple design, limited need for peripheral equipment and inspection-free operation, they are a cost-efficient choice for many industrial applications.

A hot water boiler:

When higher temperatures are needed, a hot water installation offers more possibilities. Depending on the design, temperatures up to around 200 °C can be reached within a closed circuit, while maintaining stable heat transfer.

The Callens Group specialists are happy to help you determine which technology best suits your process.

Polypeptide Braine l Alleud CV 4000 k W PRJ11945 2
20260115 Proud Calliërs service 10

Maintenance of your gas-fired hot water or industrial central heating boiler and 24/7 service

The Callens Group maintenance and service team makes sure your installation keeps performing at its best, even after commissioning. With an in-house team of more than 120 service and maintenance technicians, we schedule preventive maintenance in line with the legal and technical requirements of your installation.

On top of that, you can count on fast support whenever an unexpected breakdown occurs. Thanks to our 24/7 standby service, an extensive range of spare parts and the expertise of our service technicians, interventions can be carried out quickly and effectively.

After all, even the best-maintained installation can malfunction or stop working unexpectedly. That is why the Callens Group offers a range of service packages, tailored to your preferred response time and level of support. So even in unforeseen situations, you are assured of the right support and maximum operational reliability.

More information about our service packages
PARTNERSHIP

Why partner with the Callens Group?

60 years of experience in EPCS projects
Independent integrator focused on customer needs
Flexible customer and project approach
Short decision-making lines and a personal approach
Unique service and maintenance support
Always close to customers with 13 locations

“Maximizing energy efficiency doesn’t start with choosing a technology, but with mapping out your specific situation.”

Projects with gas-fired hot water or industrial central heating boilers

Soudal Turnhout afzuiging drijfgassen PRJ12563 13
Air technology Extraction Gas and vapor extraction

Extraction system takes on hazardous propellants

Capacity40,000 m3/h
Zone typeAtex
Callens cvketel wisselende warmtevraag
Thermal technology Hot water & industrial central heating boilers Gas-fired

Central heating boiler rides the waves of a wood drying plant’s fluctuating heat demands

Output4,200 kW
Combustion efficiency95%
Volvo
Thermal technology

Residual heat makes its way to the boiler room

Output2 x 12.5 MW
Operating conditions125 °C - 12 barg
FAQ

Questions? We have the answers.

Depending on the design and application, industrial central heating boilers can typically deliver temperatures up to around 110 °C. Hot water installations go further and can reach temperatures up to around 200 °C within a closed circuit. The right choice depends on the heat demand of your process, the required temperature and the available infrastructure. Feel free to contact us for more info.

Modern burners and control technology make it possible to precisely match the output to the current heat demand. As a result, the installation responds quickly to changes in the process or heating demand. This ensures more stable operation and also helps optimize energy consumption.

In many cases, yes. Existing pipes, heat exchangers and distribution systems can often be kept fully or partially, which limits the impact of a replacement project. The Callens Group specialists analyze your existing installation and look at which components can be reused. Want to know whether a hot water or industrial central heating boiler can be integrated into your existing installation? Contact our experts for an on-site analysis.

As an EPCS integrator, the Callens Group takes care of the entire process: from on-site analysis and engineering to installation and service. That gives you a single point of contact throughout the full service life of your gas-fired hot water or industrial central heating boiler. You can find more info about the different steps in our workflow here.

For a manufacturer of wooden pallets and packaging, the Callens Group delivered an industrial central heating installation that serves four wood-drying chambers from a single central boiler. The installation has an output of 4,200 kW and a combustion efficiency of 95 %. Thanks to an in-house developed PLC control system, a control accuracy of 1 °C is achieved, while a large buffer makes it possible to flexibly serve one or several drying chambers at the same time.

More info: /projecten/cvketel-surft-mee-op-wisselende-warmtevraag-van-houtdroogkamer

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