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Article · October 26, 2026 · 5 min

TANSU fire-tube steam boilers: industrial boilers for gas, diesel and heavy fuel oil

Fire-tube steam boilers are a widely used type of industrial boiler equipment, designed to produce process steam at manufacturing plants. Industrial steam boilers are used for heating raw materials, product treatment, sterilisation, drying and supporting process operations.

When choosing equipment, it is important to consider steam output, working pressure, fuel type, energy efficiency and operating conditions. TANSU, a manufacturer of industrial boilers since 1995, offers fire-tube steam boilers for natural gas and liquid fuel to plants across many industries.

TANSU boiler with an Ecoflam gas burner and a control cabinet in a boiler house

TANSU industrial fire-tube steam boilers

TANSU steam boilers are designed for industrial steam generation and can be used in new boiler houses or when modernising existing heat and steam supply systems.

Main specifications of TANSU industrial steam boilers:

  • Steam output: from 300 to 25,000 kg/h.
  • Working steam pressure: up to 25 bar.
  • Fuels: natural gas, diesel and heavy fuel oil.
  • Design: fire-tube steam boiler.
  • Flue gas path: three-pass.
  • Efficiency: up to 92% without an economiser and up to 95% with one, according to the manufacturer’s declared specifications.

In a fire-tube design, the hot combustion products pass inside the furnace and the fire tubes. Heat is transferred to the water through the metal walls, producing steam for production needs.

Gas-fired industrial boilers suit plants with access to a gas supply. Diesel and heavy fuel oil steam boilers can be considered for sites set up to use liquid fuel. The specific option is selected to suit the plant’s production requirements and infrastructure.

For more on the specifications and available solutions, see the catalogue of TANSU industrial steam boilers.

A gas, diesel or heavy fuel oil steam boiler: how to choose?

When choosing an industrial steam boiler, you need to consider fuel availability, the required capacity of the equipment and the specifics of the process.

A gas-fired steam boiler is considered by plants connected to the gas network. To select a model, you need to determine the required steam output, working pressure and the boiler house’s operating schedule.

A diesel-fired steam boiler can be used at sites set up for liquid fuel. When calculating operating costs, the fuel price, its consumption, storage conditions and fuel-system requirements are taken into account.

A heavy fuel oil steam boiler is considered by plants whose process and infrastructure are set up for heavy fuel oil. When selecting the equipment, you need to consider the fuel’s properties and the requirements for its preparation and feed.

So the choice of an industrial boiler depends not only on the price of the equipment but also on the total cost of operation, the steam parameters and the plant’s operating conditions.

Where are industrial steam boilers used?

Industrial steam boilers for manufacturing are in demand in industries where steam is needed for heating, treating raw materials and carrying out process operations.

  • Food industry: heating raw materials, pasteurisation, sterilisation and product treatment.
  • Construction industry: steam curing of precast concrete and the production of building materials.
  • Chemical industry: process heating and keeping production processes running.
  • Textile industry: fabric treatment and the operation of process equipment.
  • Pulp and paper industry: heating and drying materials.
  • Oil and gas industry: use of steam in process units and production systems.

When selecting boiler equipment, it is important to consider the actual steam consumption, peak load, working pressure and operating hours. A correct calculation helps select a boiler that matches the production tasks.

TANSU, the industrial boiler manufacturer: experience and capabilities

TANSU, a manufacturer of industrial boiler equipment, has been in business since 1995. The company has its own production site in Bishkek, Kyrgyzstan, and produces equipment for industrial plants.

When choosing a boiler from a manufacturer, customers should consider not only the specifications but also the manufacturer’s experience, the scope-of-supply options and whether the equipment meets the site’s requirements.

Main features of TANSU boiler equipment:

  • in-house manufacturing;
  • experience in industrial boiler equipment since 1995;
  • steam boilers with outputs from 300 to 25,000 kg/h;
  • working pressure up to 25 bar;
  • versions for gas, diesel and heavy fuel oil;
  • the option of an economiser and auxiliary equipment;
  • configuration selected to suit the parameters of the process.

When designing a boiler house, the burner equipment, automation systems, water treatment and the other elements needed for safe and efficient operation are also taken into account.

For more on the company’s history, production and activities, see the About TANSU page.

An industrial steam boiler with an economiser

To raise the efficiency of a boiler house, an economiser can be used: heat-exchange equipment that uses the heat of the flue gases to preheat the feedwater.

An industrial steam boiler with an economiser recovers part of the heat that would otherwise be lost with the flue gases. The actual effect depends on the operating mode, the boiler’s characteristics and the parameters of the system.

The option of installing an economiser is considered when designing a new boiler house or modernising existing equipment. To decide whether it is worthwhile, the load profile and the expected fuel saving need to be assessed.

If a plant needs equipment for a different fuel, it can consider TANSU solid-fuel steam boilers. For processes that need a heated heat-transfer fluid rather than steam, there are TANSU thermal oil boilers.

How to buy a TANSU industrial steam boiler?

Before buying an industrial steam boiler, you need to define the main technical parameters of the equipment:

  1. The required steam output in kilograms of steam per hour.
  2. The working pressure the production equipment needs.
  3. The fuel type and its availability at the site.
  4. The operating mode and how the load varies.
  5. The required scope of supply, including an economiser and auxiliary systems.

From this data, the suitable boiler type and the scope-of-supply requirements can be determined. When a boiler house is modernised, the existing utilities, the characteristics of the installed equipment and the specifics of the production process are also taken into account.

TANSU fire-tube steam boilers: a solution for plants that need industrial boiler equipment for gas, diesel or heavy fuel oil. The model range with steam outputs from 300 to 25,000 kg/h allows the equipment to be considered for a variety of production tasks.

Explore the catalogue of TANSU industrial steam boilers to see the products and define the equipment parameters for your plant.

Selection

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