Thermal
Oil Heaters

Advanced thermal oil heaters delivering precise, efficient, high-temperature process heat

Thermax offers a comprehensive range of thermal oil heaters, designed for high-temperature process heating, multi-fuel flexibility, and consistent performance, focusing on precision, efficiency, and reliability across industries.

Thermax’s thermal oil heater portfolio spans capacities up to 20 Mn kcal/hr, ideal for applications requiring precise temperature control without high-pressure steam. Pioneering thermic fluid heating with its flagship product Thermopac, now a generic name in the industry, these heaters use thermal oil as the heating medium, enabling stable, uniform heat transfer at high temperatures while reducing water and condensate handling. Designed for fuel flexibility, they operate efficiently on biomass as well as conventional solid, liquid, and gaseous fuels. Advanced heat transfer designs, robust combustion systems, and precise controls ensure seamless operation, superior energy efficiency, and long-term reliability across diverse industrial processes.

Our products

GreenBloc™

An advanced thermic fluid heater engineered for efficient energy generation from challenging low-density biomass fuels like rice and mustard straw


Capacity Range 2 Mn kcal/hr to 6 Mn kcal/hr
Fuel Types Solid fuel
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ThermoPac Global

A high-performance, modular oil-and-gas-fired thermic fluid heater offering fuel flexibility, superior heat transfer, and efficient, low-pressure high-temperature process heating


Capacity Range 1 Mn kcal/hr to 20 Mn kcal/hr
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DynaTherm™

A high-performance solid-fuel-fired thermic fluid heater with multiple combustor options, offering multi-fuel flexibility, advanced heat recovery, and reliable, efficient high-temperature process heating with reduced operating costs


Capacity Range 1 Mn kcal/hr to 6 Mn kcal/hr
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HT Thermal Oil Heater Solutions

High-capacity thermal oil heating solution with a membrane panel design and reciprocating grate or fluidised bed firing, offering multi-fuel flexibility, reliable high-temperature performance, and consistent operation for demanding processes


Capacity Range Up to 20 Mn kcal/hr
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