Multi Fuel External Furnace Combination Steam Boilers
Shanti Boilers manufactures Multi Fuel External Furnace Combination Steam Boilers that are specifically engineered for medium to large industrial steam applications requiring high efficiency, flexible fuel handling, and economical operation. Designed with an advanced Membrane Walled External Furnace and a Steam-cum-Water Drum Assembly, these boilers combine the advantages of fire tube and water tube technologies to deliver superior steam generation with excellent thermal efficiency.
The Shanti Combi-Flame Boiler (CF-Series) features a membrane water wall furnace that efficiently absorbs radiant heat while the smoke tube boiler section maximizes convective heat transfer. This hybrid design ensures faster steam generation, improved fuel utilization, and reliable performance even under continuous industrial operations.
One of the key advantages of this boiler is its ability to handle both large solid fuels and light biomass fuels. Industries can fire fuels manually, automatically, or through a combination of both systems, making it one of the most versatile multi fuel steam boilers available for demanding industrial applications.
Key Features
Membrane Walled Furnace
Efficiently absorbs radiant heat while protecting the furnace structure for higher thermal efficiency and longer life.
Fire & Water Tube Hybrid
Unique combination provides excellent heat transfer, high steam generation efficiency, and long-term performance.
Multi Fuel Flexibility
Efficiently burns a wide variety of solid fuels based on availability and cost without compromising steam output.
Manual & Automatic Feeding
Supports manual, screw feeding, or combination systems to suit various production requirements.
Large Furnace & Grate
Spacious chamber allows efficient combustion of bulky and low-density fuels for complete burning.
Four-Pass Efficiency
Advanced four-pass configuration with integrated APH maximizes heat recovery and minimizes fuel consumption.
Natural Water Circulation
Continuous natural circulation between the furnace and steam drum improves heat absorption and reliability.
Easy Maintenance
Convenient access points for tube cleaning reduce downtime and simplify routine servicing.
Heavy-Duty Construction
Premium valves and engineered components ensure dependable operation under demanding conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Boiler Model | Shanti Combi-Flame Boiler |
| Model Series | CF- Series |
| Steam Capacity | 1,000 kg/hr to 20,000 kg/hr |
| Working Pressure | 10.54 kg/cm² up to 17.5 kg/cm² |
| Fuel Compatibility | Coal, Wood Logs, Wood Waste, Rice Husk, Sawdust, Bagasse, Coconut/Groundnut Shells, Biomass & Agro Waste |
| Fuel Feeding | Manual, Automatic Screw, or Manual + Automatic Combination |
| Boiler Configuration | Membrane Walled External Furnace, Steam-cum-Water Drum |
| Design Details | Fire & Water Tube Hybrid, Four-Pass Design, Integrated APH |
| Circulation | Natural Water Circulation System |
Applications
Shanti Multi Fuel External Furnace Combination Steam Boilers are widely used in medium and large process industries requiring continuous, high-capacity steam generation.
Parboiled Rice Mills
Reliable steam generation for soaking, steaming, drying, and rice processing operations.
Chemical Industry
Efficient process steam for reactors, heating systems, and chemical manufacturing.
Pharmaceutical Industry
Supports sterilization, clean process heating, and pharmaceutical production.
Paper Industry
Provides continuous steam for paper manufacturing, drying, and finishing applications.
Textile Industry
Ideal for dyeing, bleaching, washing, and fabric finishing processes.
Solvent Extraction
Ensures dependable steam generation for extraction, refining, and process heating.
EPS Manufacturing
Suitable for moulding and production processes requiring consistent steam pressure.
Agro-Based Industries
An ideal solution for biomass processing, grain processing, and other agricultural industries.
Benefits of Choosing Multi Fuel External Furnace Combination Steam Boilers
Superior Fuel Flexibility
Operate efficiently with both bulky and lightweight biomass fuels, allowing industries to optimize fuel selection based on cost and availability.
Cost-Effective for Higher Capacities
The EF-MW Series offers an economical solution for steam capacities above 4 TPH, providing lower operating costs compared to conventional packaged boilers.
Higher Thermal Efficiency
The combination of membrane wall technology, four-pass design, and Air Preheater ensures maximum heat recovery and improved fuel utilization.
Reliable Continuous Steam Generation
Designed for demanding industrial environments where uninterrupted steam supply is critical to production.
Lower Maintenance Costs
The robust construction and simplified maintenance access reduce downtime and overall maintenance expenses.
Why Choose Shanti Boilers?
40+ Years of Expertise
Shanti Boilers has extensive experience in designing and manufacturing reliable industrial steam generation systems for diverse industries.
Advanced Engineering
Our Combi-Flame Boiler integrates proven membrane wall technology with modern combustion engineering to maximize efficiency and reliability.
Customized Solutions
Every boiler is engineered according to your specific steam capacity, pressure requirements, available fuels, and industrial process.
Quality Manufacturing
Precision manufacturing, premium materials, and stringent quality control ensure long-term operational performance.
End-to-End Support
From technical consultation and engineering to installation guidance and after-sales support, we provide complete assistance throughout the lifecycle.
Frequently Asked Questions
What is a Multi Fuel External Furnace Combination Steam Boiler?
It is an industrial steam boiler that combines membrane wall furnace technology with a fire tube boiler design to achieve higher combustion efficiency, improved heat transfer, and flexible multi-fuel operation.
What fuels can this boiler use?
The boiler can efficiently operate on coal, wood logs, wood waste, bagasse, rice husk, sawdust, coconut shells, groundnut shells, biomass briquettes, and various agro waste fuels.
What capacity range is available?
Shanti Boilers manufactures EF-MW Series boilers with steam generation capacities ranging from 1,000 kg/hr to 20,000 kg/hr.
Can the boiler operate with automatic fuel feeding?
Yes. The boiler can be supplied with manual firing, automatic screw feeding systems, or a combination of both depending on the application.
Which industries are best suited for this boiler?
It is ideal for rice mills, chemical plants, pharmaceutical companies, paper mills, textile industries, solvent extraction plants, EPS manufacturers, and other large process industries.
Request a Quote
Are you in search of an efficient Multi Fuel External Furnace Combination Steam Boiler with high fuel flexibility? Get in touch with Shanti Boilers. Our team of engineers will guide you to choose the appropriate model from our EF-MW Series boilers, keeping your steam requirement and industrial application into account.

