Gas-fired thermal oil boiler

Today, gas-fired thermal oil boilers are among the most widely used industrial process heat solutions. They combine high operational reliability with a broad output range and make it possible to reach process temperatures of up to approximately 300 °C without high system pressures.

The Callens Group designs, builds and integrates thermal oil systems tailored to your production environment. To do so, our specialists take account of your heat demand, energy consumption, emission targets and future expansion plans. That way, you can be sure of an installation that combines efficiency, reliability and flexibility.

Discuss the possibilities

When is a gas-fired thermal oil boiler the right choice?

A gas-fired thermal oil boiler is often the most obvious solution when you need a continuous supply of process heat at high temperatures. Thanks to the wide availability of natural gas, fast controllability and proven technology, gas-fired installations remain a technically and economically attractive choice for many industrial applications.

On top of that, modern burners, economizers and flue gas heat recovery make it possible to limit fuel consumption and push efficiency even higher.

Reasons to consider a gas-fired thermal oil boiler:

  • You have a natural gas connection or existing gas infrastructure.
  • You have a continuous demand for process heat.
  • You want to reach temperatures of up to approximately 300 °C.
  • You are looking for a reliable technology with a proven track record.
  • You want to be able to combine your installation with alternative fuels or other heat sources at some future stage.
Callens TO Ashland

Power

up to 60 MW

Capacity

100.000 kcal/h to 12.500.000 kcal/h

PRocess temperature

up to 300°C

Operating pressure

0,5 to 30 barg

Efficiency

95%

Technical specifications of gas-fired thermal oil boilers

Required thermal output, desired process temperature, operating hours and the available fuel supply all help determine which thermal oil boiler best suits your operation.

Factors such as peak loads, future expansion plans, energy efficiency and maintenance requirements also play an important role.

Our specialists analyze these parameters and design an installation that is perfectly tailored to your production process and energy management.

BENEFITS

gas-fired thermal oil boiler

For many industrial companies, gas-fired thermal oil boilers remain the benchmark for reliable process heat. They combine high temperatures with stable heat transfer and an attractive economic return.

operational reliability

A proven technology that delivers reliable process heat under a wide range of operating conditions.

High process temperatures

Temperatures of up to approximately 300 °C are possible without the high pressure that steam installations require.

energy efficiency

Modern burner technology, economizers and flue gas heat recovery ensure optimal fuel efficiency and lower operating costs.

expandable

Easy to combine with alternative fuels, heat recovery or other heat sources within a thermal oil circuit.

Precise temperature control

Processes can be very precisely kept at the required temperature, which benefits product quality and process stability.

applicable

Suitable for applications in the chemical industry, the food industry, plastics processing, textiles and asphalt production, to name just a few.

How do you integrate a gas-fired thermal oil boiler into your existing infrastructure?

In many cases, a new thermal oil boiler can be integrated into an existing process installation relatively easily. Often, it will even be possible to retain all or part of your existing consumers, pipework and auxiliary systems.

In addition, a gas-fired thermal oil boiler will allow you to gradually become more sustainable. We can prepare your installation for alternative fuels or combine it with heat recovery from existing processes.

The Callens Group specialists analyze your existing infrastructure and advise you on the configuration that will best suit your heat demand, energy consumption and future plans.

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Guardian Luxguard TO 1920 k W

Maintenance of your gas-fired thermal oil boiler and 24/7 service

The Callens Group’s maintenance and service team makes sure your installation keeps performing at its best long 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 shut down unexpectedly. That is why the Callens Group offers a range of service packages, tailored to the response time and support you need. So even in unforeseen situations, you are assured of the right support and maximum operational reliability.

More information about our service packages
PARTNERSHIP

Why work 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 thermal oil boilers

Soudal Turnhout afzuiging drijfgassen PRJ12563 13
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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 type of thermal oil and the installation configuration, process temperatures of up to around 300 °C can be reached. The exact temperature will depend on the application and the properties of the heat transfer fluid used.

The Callens Group specialists will help you determine the optimal temperature for your process and supply you with an installation that is perfectly tailored to your production requirements. Contact us for more information.

Modern thermal oil boilers achieve high efficiency thanks to high-performance burners, optimized heat exchangers and additional techniques such as economizers and heat recovery. Because the thermal oil circulates in a closed loop and transfers heat to the process directly, energy losses also remain limited.

In many cases, yes. Existing consumers, pipework and process installations can often be retained when a thermal oil boiler is replaced or expanded. The most suitable solution will depend on your existing infrastructure, required temperatures, output and future expansion plans. The Callens Group specialists analyze these factors and will advise you on the most efficient configuration.

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. This gives you a single point of contact throughout the full lifetime of your gas-fired thermal oil boiler. You can find out more about the different steps in our workflow here.

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Discuss your challenge or project with our experts

Would you like to explore which solution is suitable for your specific project?

Our engineers are happy to think along with you, from initial exploration to concrete engineering.

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