Tag: custom boiler manufacturers in India

Choosing the right boiler manufacturers in India is an important decision for industries that depend on reliable steam, process heating, hot water or thermal energy. Boiler performance can influence fuel consumption, production efficiency, plant safety, emissions, maintenance requirements and long-term operating costs.

India has a large boiler manufacturing ecosystem covering packaged steam boilers, industrial boilers, biomass-fired systems, water-tube boilers, fire-tube boilers, waste heat recovery boilers and project-specific heating equipment.

For industrial buyers, the challenge is therefore not simply finding a boiler supplier. It is identifying a manufacturer whose engineering, fabrication, fuel-handling, quality-control and project-support capabilities match the actual plant requirement.

This guide covers 30 manufacturers, major boiler types, applications, selection criteria, regulatory considerations and the information buyers should prepare before requesting a quotation.

Quick Answer: Who Manufactures Industrial Boilers in India?

Some well-known boiler manufacturers in India include National Engineers & Steel Fabricators, Thermax, Forbes Marshall, ISGEC Heavy Engineering, BHEL, Cheema Boilers, Industrial Boilers Limited, Rakhoh Industries, Balkrishna Boilers, Ross Boilers and several other specialist manufacturers.

There is no single manufacturer that is automatically the best for every project.

The right supplier depends on:

• Required steam capacity
• Operating and design pressure
• Fuel type
• Steam temperature
• Boiler configuration
• Plant operating hours
• Automation requirements
• Emission requirements
• Applicable statutory requirements
• Custom fabrication needs
• Installation and commissioning scope
• Future expansion plans

For project-specific fabricated equipment, buyers may prefer a custom boiler manufacturer in India with broader pressure-equipment and heavy-fabrication capabilities. Larger utility or power projects may require manufacturers specialising in high-capacity boiler systems.

What Is an Industrial Boiler?

An industrial boiler is pressure equipment in which heat is used to produce steam or hot water for use outside the equipment itself.

Industrial steam can be used for heating, drying, processing, sterilisation, evaporation, cleaning, power generation and many other plant operations.

Common boiler users include:

• Chemical plants
• Petrochemical facilities
• Refineries
• Food-processing plants
• Pharmaceutical units
• Textile mills
• Paper and pulp plants
• Sugar factories
• Distilleries
• Dairy plants
• Steel plants
• Power-generation facilities
• General manufacturing units

This broad application base is one reason why industrial boiler manufacturers in India offer multiple boiler configurations rather than one universal design.

How Does an Industrial Boiler Work?

A boiler converts energy from fuel, electricity or recovered process heat into usable thermal energy.

In a conventional fired boiler, the sequence is generally:

Fuel or heat source → combustion or heating → heat transfer → water heating → steam generation → steam supplied to process

Depending on the boiler system, associated equipment can include:

• Feed-water pumps
• Burners
• Furnace
• Steam drum
• Economiser
• Air preheater
• Safety valves
• Pressure controls
• Water-level controls
• Chimney or stack
• Pollution-control system
• Blowdown system
• Water-treatment equipment
• Automation and instrumentation

An experienced industrial boiler manufacturer should consider the complete steam system rather than only the boiler shell.

Types of Industrial Boilers Used in India

Different industrial processes require different boiler technologies.

Understanding the major types makes it easier to compare steam boiler manufacturers in India based on the actual operating requirement.

1. Fire-Tube Boilers

In a fire-tube boiler, hot combustion gases flow through tubes surrounded by water.

Fire-tube boilers are widely used for small and medium industrial steam requirements.

They may be suitable for:

• Food processing
• Textiles
• Small chemical plants
• Packaging plants
• Laundry operations
• General manufacturing

Advantages can include relatively simple construction, compact installation and straightforward operation depending on the design.

2. Water-Tube Boilers

In water-tube boilers, water flows inside tubes while hot gases transfer heat around the tubes.

These systems are commonly used where higher pressure, higher steam capacity or demanding continuous operation is required.

Applications can include:

• Power generation
• Refineries
• Large chemical plants
• Paper mills
• Sugar plants
• Cogeneration facilities
• Large process industries

3. Oil- and Gas-Fired Boilers

Oil- and gas-fired boilers use approved liquid or gaseous fuels.

These systems can provide controlled combustion, rapid response and high levels of automation.

They are commonly considered where a reliable gas or oil supply is available and operational control is important.

4. Biomass Boilers

Biomass boiler manufacturers in India design equipment capable of using selected renewable or agricultural fuels.

Common biomass fuels can include:

• Rice husk
• Bagasse
• Wood chips
• Biomass briquettes
• Agricultural residues

Boiler design should consider fuel moisture, ash percentage, particle size, calorific value and consistency of fuel supply.

5. AFBC and CFBC Boilers

Fluidised-bed combustion technology is frequently used for solid-fuel and multi-fuel applications.

Common designs include:

AFBC: Atmospheric Fluidised Bed Combustion

BFBC: Bubbling Fluidised Bed Combustion

CFBC: Circulating Fluidised Bed Combustion

These technologies may be considered for biomass, coal and selected industrial fuels where fuel flexibility is important.

6. Electric Boilers

Electric boilers generate steam using electrical energy instead of combustion.

They may be appropriate where:

• Electrical supply is sufficient
• Local combustion needs to be avoided
• Steam demand is controlled
• Compact installation is required
• Fuel storage is undesirable

Operating cost should be calculated using actual electricity tariffs and duty cycles.

7. Waste Heat Recovery Boilers

A Waste Heat Recovery Boiler, or WHRB, captures useful heat from industrial exhaust gases.

Waste heat may come from:

• Furnaces
• Gas turbines
• Kilns
• Engines
• Process plants
• Other high-temperature exhaust streams

Recovering usable thermal energy can improve the overall efficiency of a plant where adequate waste heat is available.

8. Package Boilers

Package boilers are generally supplied as compact, integrated systems designed to simplify installation and commissioning.

Buyers searching for industrial steam boiler manufacturers in India often consider packaged boiler systems for small and medium process-steam requirements.

9. Thermal Oil and Dowtherm Heating Systems

Some processes require high-temperature heating without producing steam.

Thermal oil or heat-transfer-fluid systems circulate a suitable fluid between the heating system and process equipment.

Although technically different from conventional steam boilers, they are frequently considered when selecting industrial process-heating equipment.

30 Boiler Manufacturers in India to Compare in 2026

The following list is designed to help industrial buyers identify potential manufacturers operating at different scales and across different boiler technologies.

Important: The order below is an editorial comparison for this buyer guide and is not an independent or government-recognised industry ranking. Buyers should independently verify each manufacturer’s current capabilities, approvals and suitability for their project.

1. National Engineers & Steel Fabricators – Surat, Gujarat

National Engineers & Steel Fabricators (NESF) is an industrial fabrication and process-equipment manufacturer based in Sachin GIDC, Surat, Gujarat.

Established in 1990, the company lists boilers alongside pressure vessels, heat exchangers, air receiver vessels, storage tanks, process equipment, piping systems and custom fabricated equipment among its capabilities.

Among boiler manufacturers in India, National Engineers are particularly relevant for project-specific requirements where the boiler or heating system needs to form part of a wider fabricated industrial package.

Key Manufacturing Capabilities

National Engineers & Steel Fabricators works across:

• Boilers
• Pressure vessels
• Heat exchangers
• Air receivers
• Storage tanks and silos
• Process vessels
• Heavy plate fabrication
• Process piping skids
• Structural fabrication
• Industrial ducting
• Carbon-steel fabrication
• Stainless-steel fabrication
• Alloy-steel fabrication
• Equipment manufactured as per approved drawings and specifications

The company also highlights QA/QC systems, qualified welding procedures, material traceability and dimensional inspection as part of its fabrication approach.

Best suited for: Custom industrial fabrication, boiler-related equipment, pressure equipment and integrated project-specific manufacturing.

2. Thermax Limited

Thermax is a major Indian energy and environmental engineering company with industrial heating and steam-generation solutions.

Its product portfolio covers boilers for different fuel types and applications along with energy, water and environmental systems.

Suitable for: Medium and large industrial steam and process-energy projects.

3. Forbes Marshall

Forbes Marshall specialises in steam engineering, industrial boiler systems, controls and steam-system efficiency.

It is widely considered by process industries that require integrated steam-generation and steam-management solutions.

Suitable for: Process plants seeking integrated steam engineering.

4. ISGEC Heavy Engineering Limited

ISGEC operates in heavy engineering and provides industrial and power-boiler technologies.

Its capabilities cover large process, biomass, power and heat-recovery applications.

Suitable for: Large industrial and cogeneration projects.

5. Bharat Heavy Electricals Limited – BHEL

BHEL is one of India’s major heavy-engineering and power-equipment manufacturers.

The organisation has extensive capabilities in large steam-generation equipment for power-generation and industrial applications.

Suitable for: Utility-scale and large power projects.

6. Cheema Boilers Limited

Cheema Boilers manufactures industrial steam-generation and power systems, including solid-fuel and biomass-based boiler technologies.

Suitable for: Biomass, process steam and cogeneration projects.

7. Industrial Boilers Limited

Industrial Boilers Limited, commonly known as IBL, operates in industrial and power steam-generation equipment.

Suitable for: Process boilers, industrial steam and captive-power applications.

8. Rakhoh Industries

Rakhoh Industries manufactures industrial boilers and process-heating systems for multiple manufacturing sectors.

Suitable for: Process-steam applications and biomass-based systems.

9. Balkrishna Boilers

Balkrishna Boilers supplies industrial steam boilers, thermic-fluid heaters and process-heating equipment.

Suitable for: Small and medium industrial steam requirements.

10. Ross Boilers

Ross Boilers manufactures packaged steam boilers and industrial heating equipment.

Its portfolio is relevant to various process-manufacturing applications.

Suitable for: Packaged boiler and process-heating requirements.

11. Maxima Boilers

Maxima Boilers operates in industrial steam and thermal heating equipment.

Suitable for: Process heating, steam-generation and multi-fuel projects.

12. Thermodyne Engineering Systems

Thermodyne develops industrial boiler and steam-generation systems for different process industries.

Suitable for: Industrial process steam and energy-efficiency projects.

13. Sitson India Limited

Sitson operates in boiler engineering and power-generation equipment.

Suitable for: Sugar, paper, chemical, biomass and industrial power applications.

14. Southern Boilers & Equipments

Southern Boilers manufactures industrial boilers and process-heating equipment.

Suitable for: Industrial steam and process-heating projects.

15. Microtech Boilers

Microtech Boilers operates in package boilers, FBC systems and related heating equipment.

Suitable for: Multi-fuel and process-steam applications.

16. Urjex Boilers

Urjex manufactures industrial steam boilers and related process-heating equipment.

Suitable for: Small and medium industrial steam requirements.

17. Par Techno-Heat

Par Techno-Heat provides industrial boiler, fluidised-bed and process-heating equipment.

Suitable for: Solid-fuel and customised industrial heating projects.

18. Energypack Boilers

Energypack manufactures industrial steam and heating systems.

Suitable for: IBR-related steam and process-heating requirements subject to applicable approvals.

19. Hi-Therm Boilers

Hi-Therm operates in industrial boilers, electrical heating and thermal systems.

Suitable for: Custom steam and process-heating applications.

20. Heatex Industries – Surat, Gujarat

Heatex Industries operates from Surat and manufactures industrial process-heating equipment.

Suitable for: Process-steam and thermal-heating applications.

21. Uni-Therm Boilers

Uni-Therm supplies industrial boiler and heating systems for process requirements.

Suitable for: Small and medium steam applications.

22. Thermokrupp Engineers

Thermokrupp operates in industrial boiler and heating-equipment manufacturing.

Suitable for: Industrial process-steam and customised boiler enquiries.

23. Silson Boilers

Silson operates in industrial steam boilers and pressure-equipment manufacturing.

Suitable for: Industrial steam and high-pressure boiler applications subject to project specifications.

24. SAZ Boilers

SAZ Boilers operates in industrial steam-generation and heating equipment.

Suitable for: Industrial steam and packaged heating requirements.

25. RIBO Industries

RIBO Industries supplies boiler and energy-related industrial systems.

Suitable for: Process steam and industrial heating applications.

26. TKIL Industries

TKIL Industries operates in heavy industrial and engineering systems and has experience relevant to boiler and energy projects.

Suitable for: Large industrial and engineered projects.

27. Jaya Boilers

Jaya Boilers manufactures industrial steam boilers and related systems.

Suitable for: Small and medium process-steam applications.

28. Ambica Boiler

Ambica Boiler operates in industrial steam and heating equipment manufacturing.

Suitable for: Industrial steam and process-heating requirements.

29. Thermal Engitech

Thermal Engitech provides boiler and thermal-engineering solutions.

Suitable for: Steam-generation and process-heating projects.

30. Girison Engineering System

Girison Engineering System supplies industrial steam and heating equipment.

Suitable for: Industrial process and steam-generation applications.

Quick Comparison of Industrial Boiler Manufacturers in India

The table below gives buyers a faster way to compare boiler manufacturers in India according to their broad market positioning.

Manufacturer	Location / Market	Broad Capability	Typical Requirement
National Engineers & Steel Fabricators	Surat, Gujarat	Custom boilers + heavy fabrication	Project-specific industrial fabrication
Thermax	Pan India	Industrial and energy systems	Medium-large plants
Forbes Marshall	Pan India	Steam engineering	Process steam
ISGEC	Pan India	Industrial and power boilers	Large projects
BHEL	Pan India	Utility steam generation	Power plants
Cheema Boilers	Punjab / Pan India	Process and biomass systems	Biomass/cogeneration
Industrial Boilers Ltd.	India	Process and power boilers	Industrial steam
Rakhoh Industries	Pune	Industrial boilers	Process industries
Balkrishna Boilers	Gujarat	Steam and heating equipment	General industry
Ross Boilers	Pune	Packaged boilers	Small-medium plants
Maxima Boilers	Maharashtra	Steam and thermal systems	Process heating
Thermodyne	India	Industrial boilers	Process steam
Sitson India	Maharashtra	Boiler and power systems	Large process plants
Southern Boilers	Tamil Nadu	Industrial boilers	Process heating
Microtech Boilers	Gujarat	Package/FBC systems	Multi-fuel applications

A technical comparison should still be based on capacity, pressure, fuel, efficiency, materials, regulatory applicability and project scope rather than the order of a manufacturer list.

Boiler Manufacturers in Gujarat: Why the Region Matters

Gujarat is one of India’s major industrial manufacturing states, with strong chemical, petrochemical, textile, pharmaceutical, engineering and processing clusters.

As a result, buyers can find a significant ecosystem of boiler manufacturers in Gujarat, fabrication companies, pressure-equipment manufacturers, piping contractors and industrial service providers.

Surat and Ahmedabad in particular have developed large engineering and fabrication networks.

National Engineers & Steel Fabricators operates from Sachin GIDC, Surat, Gujarat, making it relevant to industrial projects in Surat, Hazira, Bharuch, Ankleshwar, Dahej, Vadodara and other industrial locations where logistics and fabrication support can be important.

How to Choose a Boiler Manufacturer in India

When shortlisting boiler manufacturers in India, buyers should evaluate technical suitability before comparing final price.

1. Calculate Steam Capacity

Determine normal and maximum steam demand.

Capacity is commonly expressed in:

• kg/hr
• TPH or tonnes per hour

Future production expansion should also be considered.

2. Define Operating Pressure

Specify:

• Working pressure
• Design pressure
• Steam temperature
• Saturated or superheated steam
• Maximum load
• Minimum operating load

Pressure and temperature directly influence boiler design and material selection.

3. Select the Fuel

Possible energy sources include:

• Natural gas
• Approved liquid fuels
• Coal
• Biomass
• Bagasse
• Rice husk
• Briquettes
• Electricity
• Waste heat

The cheapest fuel per unit is not necessarily the cheapest boiler system to operate.

Fuel handling, transportation, storage, emissions, ash disposal, maintenance and combustion efficiency also affect lifecycle cost.

4. Evaluate Boiler Efficiency

Efficiency has a direct effect on long-term fuel cost.

Ask suppliers to explain:

• Rated efficiency
• Test conditions
• Expected operating efficiency
• Heat losses
• Economiser options
• Air-preheater options
• Condensate recovery
• Blowdown heat recovery

Comparisons should use the same operating basis.

5. Check Fabrication Capability

For custom boiler projects, evaluate whether the manufacturer has adequate facilities for:

• Plate cutting
• Rolling and forming
• Welding
• Pressure-part fabrication
• Dimensional inspection
• NDT
• Hydrotesting
• Material traceability
• Heat treatment where required
• Documentation

This factor is especially important when evaluating custom boiler manufacturers in India.

6. Review Material Selection

Material selection depends on:

• Pressure
• Temperature
• Corrosion environment
• Water chemistry
• Design code
• Service conditions
• Expected equipment life

Carbon steel, stainless steel and selected alloy steels may be used in different sections depending on the approved design.

7. Evaluate Controls and Automation

Modern boiler systems can integrate:

• Automatic fuel control
• Water-level control
• Pressure control
• Burner-management systems
• Flame monitoring
• Safety interlocks
• Temperature monitoring
• Remote monitoring
• Alarm systems
• Energy tracking

Automation requirements should be specified during the quotation stage.

8. Check After-Sales and Installation Support

A reliable boiler supplier in India should clearly define the scope for:

• Installation
• Erection
• Commissioning
• Operator training
• Spare parts
• Maintenance
• Troubleshooting
• Technical support

Do not assume these services are included unless they are specifically mentioned in the quotation.

IBR Boiler Manufacturers in India and Regulatory Requirements

Industrial boilers are safety-critical pressure equipment.

When comparing boiler manufacturers in India, buyers should verify which statutory requirements apply to their proposed boiler, installation and operating conditions.

India’s current primary boiler legislation is the Boilers Act, 2025, which came into force on May 1, 2025. The Act covers areas including regulation, inspection, certification and registration of boilers and boiler components. Applicable technical regulations and requirements should always be confirmed for the specific project before manufacture or installation.

The Boilers Act, 2025 officially replaced the previous century-old legislative framework, so boiler-related content published in 2026 should not present the Boilers Act, 1923 as the current governing Act.

Buyers evaluating IBR boiler manufacturers in India should discuss applicable certification, inspection, manufacturing documentation and registration requirements early in the procurement process.

Pressure Vessel and Boiler Manufacturers in India

Boilers and pressure vessels share several important engineering disciplines, including pressure-boundary fabrication, welding control, material traceability, inspection and testing.

For projects involving both types of equipment, working with experienced pressure vessel and boiler manufacturers in India can simplify coordination between:

• Boiler systems
• Pressure vessels
• Heat exchangers
• Steam drums
• Air receivers
• Process vessels
• Storage equipment
• Process piping
• Structural supports
• Skid-mounted assemblies

National Engineers & Steel Fabricators is relevant in this category because its manufacturing portfolio extends beyond boilers into pressure vessels, heat exchangers, storage systems, process piping and heavy custom fabrication.

How Much Does an Industrial Boiler Cost in India?

There is no fixed price for an industrial boiler.

Cost depends on factors such as:

Cost Factor	Effect on Boiler Price
Steam capacity	Larger capacity generally increases equipment cost
Design pressure	Higher pressure can require heavier construction
Fuel type	Changes furnace and fuel-handling requirements
Boiler design	Fire-tube, water-tube, FBC, electric, etc.
Materials	Material grade affects fabrication cost
Automation	Advanced controls increase initial investment
Pollution control	Additional equipment may be required
Accessories	Economiser, chimney, pumps, controls, etc.
Installation	Site conditions affect erection cost
Compliance	Inspection and documentation requirements vary
Customisation	Special designs generally require added engineering

Rather than asking only for the lowest boiler price, buyers should compare total lifecycle cost.

A slightly higher initial investment can sometimes be justified by better efficiency, lower fuel consumption, reduced downtime or improved maintainability.

What Information Should You Send to Boiler Suppliers in India?

A detailed enquiry enables manufacturers to provide a more accurate technical and commercial quotation.

Share the following information whenever available:

Requirement	Information
Steam capacity	kg/hr or TPH
Operating pressure	bar / kg/cm²
Design pressure	Required value
Steam condition	Saturated / superheated
Fuel	Gas, biomass, oil, electric, etc.
Fuel data	GCV, moisture, ash where relevant
Feed-water temperature	°C
Operating schedule	Hours per day
Load pattern	Continuous / variable
Site location	City and state
Automation	Required level
Emission requirement	Applicable limits
Boiler accessories	Economiser, pumps, chimney, etc.
Installation scope	Supply / erection / commissioning
Drawings	Available drawings or layouts
Documentation	Client and statutory requirements

This information is particularly useful when approaching boiler manufacturing companies in India for a customised proposal.

Why Custom Boiler Fabrication Can Be Important

Standard packaged boilers work well for many applications, but not every plant has a standard requirement.

Custom engineering can become necessary when a project involves:

• Limited installation space
• Special process connections
• Existing plant integration
• Unusual operating conditions
• Different fuel characteristics
• Custom support structures
• Waste heat recovery
• Special piping arrangements
• Skid-mounted assemblies
• Client-specific fabrication specifications
• Existing equipment modifications

In such cases, custom boiler manufacturers in India with broader industrial-fabrication experience may provide greater flexibility than suppliers focused only on catalogue equipment.

Why Consider National Engineers & Steel Fabricators?

National Engineers & Steel Fabricators brings boiler manufacturing together with broader process-equipment and heavy-fabrication capabilities.

The company has operated from Surat, Gujarat since 1990 and works with industrial sectors including chemicals, petrochemicals, oil and gas, fertilizers, steel, shipbuilding, effluent treatment and manufacturing.

Its fabrication portfolio includes:

• Boilers
• Pressure vessels
• Heat exchangers
• Storage tanks
• Silos
• Air receivers
• Process equipment
• Process piping skids
• Structural steelwork
• Custom heavy fabricated equipment

This wider manufacturing capability can be beneficial where the project involves multiple pieces of equipment that need to be coordinated around the same process, drawings or plant layout.

For buyers searching for a boiler manufacturer in India with custom steel-fabrication capability, National Engineers & Steel Fabricators can therefore be considered for technically defined and project-specific requirements.

Conclusion

Choosing among boiler manufacturers in India requires a technical evaluation rather than simply selecting the lowest quotation or the first company on a manufacturer list.

Steam demand, pressure, temperature, fuel availability, boiler configuration, efficiency, statutory requirements, fabrication capability, automation, emissions and lifecycle operating cost should all be evaluated together.

Large boiler OEMs can be appropriate for standardised and high-capacity systems, while engineering and fabrication companies can offer advantages for customised industrial projects.

National Engineers & Steel Fabricators combines boiler-related capability with pressure vessels, heat exchangers, storage equipment, process piping and heavy custom fabrication from its manufacturing base in Surat, Gujarat.

Looking for a Custom Industrial Boiler or Fabrication Solution?

If you are comparing boiler manufacturers in India for a project-specific requirement, share your steam capacity, pressure, fuel type, operating temperature, material requirement, drawings and site details with National Engineers & Steel Fabricators.

A technically defined enquiry can help the engineering team understand the project scope and recommend an appropriate fabrication approach.

Also, Read: Best Heat Exchanger Manufacturers in India

Frequently Asked Questions