Priority solutionThermal Oil Heater
Gas / Oil-fired Thermal Oil Heater
Natural gas · Diesel · Fuel oilPrecisely controlled high-temperature process heating with clean combustion and flexible system integration.
View solutionLeading Manufacturer & System Supplier In China for Thermal Oil Heaters & Steam Boilers
JIELI THERMAL is a professional Chinese manufacturer of thermal oil heaters, steam boilers and complete heating systems.
- Safety is non-negotiable. Operating reliability guides every design decision, while continuous innovation drives improvement.
- Every solution is engineered around your required heat load, temperature or steam pressure, available fuel and production process.
- Delivery marks the beginning of our cooperation; after-sales service remains a vital part of every sale.
- Our goal is clear: to provide the most reliable thermal-energy solution for your factory.
Relentless Dedication•Advanced Reliability
Direct manufacturerOwn workshop in Linyi, China
12,000+ customersIndustrial users served since establishment
30+ export marketsProject experience across global industries
30 years of focusProfessional boiler design & manufacturing
Regulatory licensedBoiler & pressure-vessel manufacturing in China
Higher supply standardsApplicable ASME & CE/PED engineering capability
System-matched designBoiler, auxiliaries and controls matched to site conditions
Boiler & system expertiseSpecialists in boilers. Stronger in complete-system engineering.
Core Boiler Products
Thermal oil heaters and steam boilers for industrial processes.
Gas, oil, biomass and coal-fired equipment is selected around your real heat demand, operating conditions, fuel and plant arrangement.
Priority solution
Priority solutionThermal Oil Heater
Biomass-fired Thermal Oil Heater
Wood chips · Pellets · Agricultural residuesRobust process-heating systems designed around biomass fuel characteristics and stable thermal-oil circulation.
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Priority solutionSteam Boiler
Gas / Oil-fired Steam Boiler
Natural gas · Diesel · Fuel oilIndustrial steam generation with compact integration, automated control and project-specific auxiliary systems.
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Steam Boiler
Biomass-fired Steam Boiler
Wood chips · Pellets · Agricultural residuesFuel-adapted biomass steam systems for continuous industrial production and complete plant integration.
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Thermal Oil Heater
Coal-fired Thermal Oil Heater
Project-specified coalHeavy-duty thermal-oil heating for sites where solid fuel and long-duration process heat are required.
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Steam Boiler
Coal-fired Steam Boiler
Project-specified coalIndustrial steam boiler packages for solid-fuel applications, engineered with matching auxiliaries and controls.
View solution
More than the boiler bodyOne system. One engineering responsibility.
Tailored System Solutions
Your heat demand and fuel define the solution.
We configure the boiler, fuel system, circulation or feedwater equipment, heat recovery, emissions equipment and controls as one coordinated package for your production process.
- 01Process definition
Duty, temperature, pressure, fuel and operating pattern.
- 02Boiler & system design
Equipment selection, circulation, piping and auxiliaries.
- 03Control integration
Protection logic and operation built around the full system.
- 04Delivery support
Documentation, installation guidance and commissioning support.
Boiler Manufacturing in China
A purpose-built manufacturing base.
These are real photographs from our own workshop. Pressure-part preparation, coil forming, assembly, welding, inspection and control integration are carried out under our manufacturing system.
Our production workshopBoiler manufacturing base in Linyi, Shandong
Products in our workshopThermal-oil coils and boiler bodies under fabrication
Assembly & finishingReal equipment, real people, real manufacturing
Thermal-oil coil formingHeat-transfer geometry produced in-house
CNC plate preparationControlled preparation before forming and welding
About JIELI THERMAL
Experienced enough to see the whole system.
JIELI THERMAL is a professional Chinese designer and manufacturer of thermal oil heaters and steam boilers with 30 years of focused experience. We combine pressure-part production, complete-system engineering and advanced electrical controls within one experienced team.
Project-specific design and manufacturing can follow applicable ASME, CE (PED Directive) and other standards. Our goal is equipment that runs safely, steadily and efficiently for the long term, supported by a system that is practical to operate and maintain.
China licensedBoiler & pressure vessel manufacturing
30 yearsProfessional design & manufacturing
System-firstBoiler and auxiliaries coordinated
Global standardsASME & CE/PED capability
Industrial Applications
Heat for demanding production lines.
- Chemical processing
- Wood & panel production
- Textile & dyeing
- Food processing
- Paper & packaging
- Rubber & plastics
- Pharmaceutical
- Building materials
Selected Work
Built, installed and prepared for delivery.
A first look at our product and project image library. More application details will be added as project records are prepared.
Biomass steam
Thailand Biomass Boiler Project
Gas-fired steam
Industrial Gas-fired Steam Boiler Project
Biomass steam
Overseas Biomass Steam Boiler Superheated Project
News & Industry Knowledge
Practical boiler knowledge from our engineering team.
Technical guidance, project experience and manufacturing updates written for industrial boiler users.
July 30, 2026 · Steam Boiler Guide
Industrial Steam Boiler Selection Guide
A practical engineering workflow for defining steam demand, pressure, load profile, fuel, feedwater, condensate return, controls and boiler-house auxiliaries.Read guideJuly 30, 2026 · Thermal Oil Guide
Thermal Oil Heater Selection Guide
How to define heat duty, operating temperature, thermal-fluid limits, circulation, expansion, fuel equipment and protection logic before selecting a thermal oil heater.Read guide
July 30, 2026 · Engineering Guide
Thermal Oil Heater vs Steam Boiler
Compare process needs, temperature and pressure, system layout, maintenance and lifecycle cost before choosing an industrial heating system.Read guideStart a Project
Tell us what your process needs.
Share your fuel, required capacity, operating conditions and project location. Our team will help shape the boiler and the complete system around your actual production requirements.