VTM SERIES
VTM SERIES

Solid Fuel Fired Thermic Fluid Heater

  • For fuel such as coal, wood, brickets, baggasse, etc.
  • Overall efficiency of 70 % (+/-2%) on NCV with APH.
  • Option of grate/inclined perforated grate/flat grate, etc.
  • Easy operation in different type of solid fuel with maximum efficiency.
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VTM SERIES
Features

Solid Fuel Fired Thermic Fluid Heater

The VTM Series by Balkrishna Boilers is a high-efficiency, vertical three-pass thermic fluid heater designed to deliver high process temperatures at exceptionally low operating pressures. Specifically engineered for industrial versatility, the VTM Series thrives on a wide range of solid fuels, including coal, wood, and various agro-waste fuels.

By utilizing a sophisticated three-pass radiant-convective design, the VTM Series ensures maximum heat absorption and thermal efficiency, significantly reducing operational fuel costs for your facility.

Operating Range

  • Capacity – 0.4 to 10.0 million kcal/hr
  • Fuel- Solid fuels/agro-fuels
  • Temperature - 300℃
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Robust Engineering & Site-Built Furnace

The VTM Series features a heavy-duty combustion system tailored for the rigorous demands of solid fuel firing. Our engineering team oversees the complete setup, including:

  • Advanced Combustion System: Includes precision-engineered fuel handling, stoking equipment, and a high-performance air/flue gas system (I.D. and F.D. fans).
  • On-Site Furnace Construction: We provide expert on-site refractory work, including the building of refractory chambers, foundation, and the installation of high-durability grate bars and firing doors.
  • Environmental Compliance: Every unit is integrated with modern pollution control equipment to ensure clean operations and adherence to local emission standards.

Key Advantages

  • Agro-Fuel Compatibility: Significantly lower your fuel bills by utilizing cost-effective agro-waste such as rice husk, wood chips, and briquettes.
  • Three-Pass Efficiency: The vertical design forces combustion gases through three distinct passes, maximizing the heat transferred to the thermal oil.
  • High Heat at Low Pressure: Reach process temperatures up to 300°C while maintaining atmospheric or near-atmospheric pressure, enhancing overall plant safety compared to steam systems.
  • Industrial Durability: Built with high-quality supporting structures and access doors for long-term, 24/7 industrial use.

Industries Served

The VTM Series is a versatile heating solution widely used across these sectors:

  • Textiles: For high-temperature dyeing, printing, and stenter machines.
  • Chemical & Pharma: For reactors, distillation units, and specialized drying processes.
  • Plywood & Laminates: Essential for high-pressure hot presses and drying kilns.
  • Food Processing: Used in large-scale frying, roasting, and edible oil refining.
  • Packaging & Paper: Providing consistent heat for corrugation and coating machines.

Technical Specifications

Specification Unit VTM-100 VTM-200 VTM-300 VTM-400 VTM-600 VTM-800 VTM-1000 VTM-1500 VTM-2000
General
Maximum heat output M. Kcal/hr 0.1 0.2 0.3 0.4 0.6 0.8 1.0 1.5 2.0
maximum working temperature °C 280 280 280 280 280 280 280 280 280
hermic fluid
heater Rise temperature 		°C 30 30 30 30 30 30 30 30 30
Hot Oil Inlet/ Outlet MM 40 50 80 80 80 100 100 120 150
Heating surface area of heater M² 7.5 15 23 30 45 60 75 113 150
Oil holding capacity of heater litre 26 97 147 280 418 741 931 1750 2332
Firing Mode Manual
Type of fuel Fuel Wood Log, Briquette, coal,
Boiler efficiency
On Wood Log % 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2
On Briquette % 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2
On Coal % 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2 76 +/-2
Fuel Consumption
Wood Log (3500) Kg/hr 38 75 113 150 226 301 376 564 752
Briquette (4000) Kg/hr 33 66 99 132 197 263 329 493 658
Coal (4500) Kg/hr 29 58 88 117 175 234 292 439 585
Electrical Load
Circulation Oil Pump H.P. 5.00 7.50 10.00 10.00 15.00 20.00 25.00 30.00 40.00
ID fan without BF H.P. 1.00 2.00 3.00 5.00 7.50 10.00 10.00 15.00 20.00
FD fan with APH H.P. N.A. N.A. N.A. 2.00 3.00 3.00 5.00 7.5 10.0
Total Electric Load H.P. 6.00 9.50 13.00 17.00 25.50 33.00 40.00 52.50 70.00
Overall Dimention
Length mm 1600 1600 2400 3200 3500 3500 3600 4300 5000
Width mm 1400 1400 2600 2800 3300 3500 3800 4500 5200
Height mm 2100 2500 3500 5500 5500 5600 5700 6400 7500
NOTE: In view of constant endeavors to improve our products, we reserve the right to alter or change above specifications without prior notice.
  • GCV of wood log is 3500 Kcal/KG.
  • GCV of briquette is 4000 Kcal/KG.
  • GCV of coal is 4500 Kcal/KG.

Frequently Asked Questions (FAQ) about Solid Fuel Fired Thermic Fluid Heater

The primary advantage is fuel cost. By using solid fuels or agro-waste like wood chips and husks, the cost per Kcal of heat generated is significantly lower than that of diesel or gas, leading to a much faster return on investment.

Yes. While the heater body is factory-made, the refractory-lined combustion chamber and brickwork are constructed on-site by our expert team. This ensures the furnace is perfectly integrated with your plant’s foundation and structure.

Yes. We integrate high-performance pollution control equipment (such as Multi-Cyclone Dust Collectors) to ensure that the flue gas emissions meet environmental regulations, even when firing solid fuels.

A thermic fluid heater can reach 300°C at very low pressure, whereas a steam boiler would require dangerous and expensive pressures (over 85 Kg/cm²) to reach the same temperature. This makes the VTM Series a safer and more practical choice for high-heat processes.

The VTM Series is designed for easy maintenance. We include strategically placed access doors for soot cleaning and ash removal, and our high-quality grate bars are engineered for high thermal resistance and easy replacement if necessary.