30 years · professional boiler manufacturer & system integrator

Process heat, specified correctly

Steam Boilers and Thermal Oil Heater Systems for Process Plants

30 years of professional manufacturing experience · One of China’s leading industrial boiler manufacturers

Focused on quality, system engineering and equipment reliability, JIELI develops complete steam boiler and thermal oil heater systems for demanding industrial plants.

Multi-fuel combustion systemsNatural gas · fuel oil · biomass · coal
Thermal oil heater 0.6–30 MWUp to 320°C
Steam boiler 1–35 t/hUp to 2.5 MPa
Three gas-fired industrial boilers manufactured in the JIELI workshop
30 years of professional boiler manufacturing and system integrationA leading Chinese supplier working to the highest quality standards, backed by disciplined engineering and real export-project evidence.
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Start with the process

Choose the heating medium before choosing the boiler

Thermal oil and steam solve different process problems. A correct first decision reduces operating risk, unnecessary pressure and lifecycle cost.

The fundamental difference

Thermal oil transfers heat without a phase change; steam transfers heat through vapor generation and condensation.

Most thermal oil systems circulate an organic heat-transfer fluid in the liquid phase. Because the fluid does not have to boil to carry useful process heat, the system can provide high-temperature heat without generating steam pressure. It also avoids boiler-water testing, deoxygenation, demineralization and condensate recovery because no water-side condensate is produced.

Thermal oil heater — best fit

Indirect, stable high-temperature heating

Drying, hot pressing, laminating, reactor and vessel jackets, heat exchangers, asphalt and other closed-loop process heating duties.

Steam boiler — best fit

Steam contact and steam-side heating

Direct steam injection or contact heating, general process heating, reactor jackets, sterilization, humidification, washing and other duties that specifically require steam.

Gas fired thermal oil heater installed with process piping and burner system
High-temperature, low-pressure process heat

Thermal Oil Heater Systems

For plywood presses, asphalt tanks, chemical reactors, textile stenters and other duties requiring stable high-temperature heat without high steam pressure.

Compare thermal fluid heater options
WNS wet-back gas fired industrial steam boiler with burner and boiler-room piping
Steam for process, sterilization and humidification

Industrial Steam Boiler

Fire-tube, water-tube and biomass systems selected by steam load, pressure, fuel, water quality and condensate-return conditions.

Compare industrial steam boiler options

Application-led engineering

Selection logic matched to the plant, not just the nameplate

Plywood & wood panels

Thermal oil supply for hot presses, dryers and continuous production lines, with return-temperature and pump-flow checks.

Bitumen & asphalt

Tank, pipeline and mixing-plant heating sized for cold starts, ambient conditions and the required product temperature.

Chemical processing

Stable jacket or coil heating for reactors, distillation and process vessels, with temperature-control and safety-loop review.

Food & edible oils

Steam and thermal fluid duties for cooking, refining, drying and cleaning, with water treatment and heat recovery considered.

Fuel and system scope

One duty, several technically valid configurations

Fuel availability, emissions limits, turndown, automation level and local service capability can change the best configuration. We compare the complete operating system rather than isolating the boiler body.

Natural gasLPGDiesel / light oilWood chipsBiomass pelletsCoal
  • Boiler or heater body and combustion equipment
  • Pumps, expansion/deaeration, water treatment and tanks
  • Heat recovery, controls, interlocks and instrumentation
  • Site data, layout constraints and export delivery scope
Complete biomass fired thermal oil heater system with fuel conveying equipment in the workshop

Quick engineering reference

Convert thermal duty before shortlisting equipment

Regional specifications may express the same heat duty in kcal/h, kW, MW or MMBtu/h. Use this quick comparison for early planning; final selection still requires process temperatures, efficiency, fuel and operating profile.

Reference: 1,000,000 kcal/h ≈ 1.163 MW ≈ 3.968 MMBtu/h.

Heat-duty converter

Five million kcal gas fired thermal oil heater system installed for an industrial battery project in South Korea

Project proof

Specification must survive real installation conditions

This 5,000,000 kcal/h gas-fired thermal oil heater project in South Korea shows the system-level view: heater, combustion, circulation, piping interfaces, controls and site layout are coordinated as one operating package.

  • Heat duty5,000,000 kcal/h
  • Equivalent outputApprox. 5.81 MW
  • Heating mediumThermal fluid
  • Project typeIndustrial battery plant

For company history, manufacturing evidence and the full project gallery, visit the JIELI THERMAL manufacturing website.

System-integration capability

Controls and emissions equipment complete the operating package

Boiler performance depends on the control architecture and project-specific flue-gas or waste-gas treatment scope—not only the pressure vessel or heater body.

Industrial boiler automatic control system manufactured and wired by JIELI
Automatic boiler control systemInterlocks, instrumentation and operating logic
Industrial combustion device with grate or burner manufactured by JIELI
Combustion device (grate or burner)Project-specific combustion and emissions scope

Engineering selection request

Send five parameters. Receive a useful shortlist.

Required duty, outlet temperature or steam pressure, fuel, industry/process and project country.

Email project parameters