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Heat Transfer

Heat transfer fluids carry thermal energy within industrial heating and cooling circuits, supporting processes across manufacturing, food production and chemical processing. Gem Oils supplies heat transfer fluids formulated for stability across the specific temperature range required by the application.
60+

Years in Business

1M +

Litres of Stock

ISO

9001:2015 Certified

32

Counties Served

About the range

Heat transfer fluids carry thermal energy within industrial heating and cooling circuits, supporting processes across manufacturing, food production and chemical processing. Gem Oils supplies heat transfer fluids formulated for stability across the specific temperature range required by the application.

Selecting a heat transfer fluid requires consideration of the system’s minimum and maximum operating temperatures, as thermal degradation can lead to fouling, reduced heat transfer efficiency and increased maintenance requirements. Regular fluid condition monitoring helps maintain system performance.

Formulated for the job

Carries thermal energy within industrial heating and cooling circuits.

Meets industry standards

Formulated for stability across defined operating temperature ranges.

Built for your equipment

Built for manufacturing, food and chemical processing systems.

Technical support

Our technical team will confirm the right fluid for your process before you order.

Industries

Brands

Always check the required product type, grade, specification and compatibility against the vehicle or equipment manufacturer’s recommendations before use.

Common Questions

Heat Transfer Products FAQs

Answers to the questions we are most commonly asked by garages, fleet operators, and motor factors. For vehicle-specific advice, contact our technical team directly.

Heat transfer fluids carry thermal energy within closed industrial heating or cooling circuits — for example in manufacturing processes, food production or chemical plant. Unlike engine coolants, they are formulated for the specific temperature range and materials of the industrial system they serve, not for vehicle cooling circuits. The two types are not interchangeable.

Selection depends on the system’s minimum and maximum operating temperatures, compatibility with circuit materials (seals, pipes and heat exchanger metals), and any specific process requirements such as food-grade certification. Contact the Gem Oils technical team with your system details and operating temperature range to confirm a suitable product.

Sustained exposure to high temperatures causes thermal and oxidative breakdown, leading to higher viscosity, deposit formation and reduced heat transfer performance. Regular fluid condition monitoring helps identify when a change is needed before performance deteriorates.

There is no single universal interval — the correct approach is to monitor fluid condition through periodic sampling and testing. The fluid’s pH, degradation products and viscosity can indicate when a change is required. Equipment manufacturers and fluid suppliers can provide guidance on sampling intervals.

need help selecting a product?

Talk to the Gem Oils Team

Tell us the equipment, application and the grade or specification required. Our team can help identify suitable Gem Oils options and available pack sizes.