By forcing the flue gases through three distinct stages of the heat exchanger, we lower the exit temperature of the gases. This ensures that more heat is absorbed by the thermic fluid, leading to thermal efficiencies of 88% to 90%.

• Space Saving: Takes up significantly less floor area than horizontal models.
• Uniform Heating: Natural upward flow of heat assists in uniform temperature distribution.
• Ease of Cleaning: Soot and dust particles naturally fall to the bottom, making maintenance easier.

Our standard units at indianboilers.com are designed to reach 300°C. For special high-temperature applications, we can customize units to achieve up to 350°C using synthetic fluids.

This model is highly versatile and can be fired with:

• Liquid Fuels: LDO (Light Diesel Oil), HSD (Diesel), and Furnace Oil.
• Gaseous Fuels: Natural Gas (PNG), LPG, and Biogas.

We offer a wide range starting from 1 Lac kcal/hr up to 25 Lac kcal/hr in the vertical configuration. Larger capacities are also available upon request.

No. This is the primary benefit of thermic fluid heaters. They provide high-temperature heat (300°C) at near-atmospheric pressure (1 to 4 bar), whereas a steam boiler would require over 85 bar of pressure to reach the same temperature.

We equip our heaters with world-class, fully automatic burners (like Riello or Elco). These burners provide precise air-fuel mixing for clean, smokeless combustion.

We use high-grade Seamless Carbon Steel tubes (BS-3059/SA-210). The coils are precisely wound to ensure the correct velocity of the thermic fluid, preventing localized overheating and oil degradation.

The system is managed by a high-precision Digital PID Controller or an optional PLC-based system, which automatically modulates the burner to maintain the fluid temperature within ±1°C.

Thermic fluid heaters generally do not generate steam and therefore do not fall under the Indian Boiler Regulations (IBR). This means you do not need a government-certified boiler attendant to operate the unit.

• High Temperature Cut-off: Prevents the oil from exceeding its safe limit.
• Low Flow Switch: Instantly shuts off the burner if oil circulation stops.
• Stack Temperature Alarm: Detects if excessive heat is being lost.
• Flame Sensor: Shuts off fuel if the burner flame is not detected.

We design for a Low Heat Flux. By maintaining a high turbulent flow of oil through the coils, we ensure the "Film Temperature" remains well below the oil's cracking point, extending the life of your thermic fluid.

As thermic fluid heats up, it expands in volume. The expansion tank safely absorbs this extra volume and ensures the system remains at a constant pressure.

• Food Industry: For industrial frying and ovens.
• Chemicals: For heating reactors and distillation columns.
• Textiles: For stenters and curing ranges.
• Pharma: For clean heating in sensitive environments.

With proper operation and our low-flux design, a high-quality mineral-based oil can last 3 to 5 years. We recommend testing the oil every 6 months for viscosity and flashpoint changes.

Because oil and gas are clean fuels, soot buildup is minimal. A basic inspection of the burner and a visual check of the coils every 3 to 6 months is usually sufficient.

The cost varies based on kcal capacity and burner automation. For 2025, estimated prices at indianboilers.com are:

• 1 Lac to 4 Lac kcal/hr: ₹500,000.
• 6 Lac to 10 Lac kcal/hr: ₹8,50,000 – ₹16,00,000.
• 15 Lac to 25 Lac kcal/hr: ₹18,00,000 – ₹35,00,000.

Prices are affected by the Burner Type (Single stage vs. Modulating), Fuel Choice (Gas-only vs. Dual Fuel), and the inclusion of Waste Heat Recovery units or advanced PLC controls.

Due to the high efficiency and low maintenance requirements, most customers achieve a complete Return on Investment within 10 to 14 months through fuel savings and reduced labor costs.