Drum Heaters

Drum Heaters (also known as barrel heaters) are the best method for reliably heating and safely storing temperature-sensitive materials without worrying about overheating, burning, or freezing.

Drum Heaters can be designed as a drum heating jacket to wrap around the drum, as a base drum heater for heating from the bottom, or as an immersion heater for direct contact with the contents. Each type offers unique benefits tailored to different heating requirements.

Suitable for water, oils, resin, vaseline, wax, adhesives, foodstuffs, and more, they provide safe, fast, and uniform heating to the entire surface of your container.

By increasing and maintaining the temperature inside a container, drum heaters can effectively alter the viscosity of the materials and reduce unnecessary product waste.

What is a Drum Heater?

A drum heater — also known as a barrel heater, heating jacket or drum heating system — is an electric heating system developed specifically for the temperature regulation of drums, containers and tanks. Drum heaters are used to reduce the viscosity of liquids and gels, prevent substances from solidifying, or bring materials to the temperature required for processing. Depending on the fluid and the application, a drum heater can keep a liquid in a fluid state, re-melt a solidified material, or maintain a precise process temperature for hours and days.

HeatXperts supplies drum heaters for drums from 25 to 200 litres — in metal or plastic, for standard and ATEX applications, with or without an integrated temperature controller. Whether it's a heating jacket, a base drum heater or a high-temperature version: all models are designed to distribute heat evenly across the entire drum surface.

How does a drum heater work?

A drum heater works on the principle of contact heat: the heating element is placed directly around the drum or under the base. Electric current passes through the heating element, which transfers the energy as heat to the drum wall — and from there to the contents. The heat is distributed evenly across the entire heated surface, with no zone overheating or remaining cold.

Integrated thermostats or external temperature controllers manage the heating process with precision: as soon as the target temperature is reached, the system switches off automatically — and back on when the temperature drops below the set value. This enables continuous, unattended operation without risk of overheating.

Unlike ovens, steam baths or indirect heating methods, the drum heater is applied directly to the container. This means minimal heat losses, fast response times and significantly lower energy consumption.

Advantages of a drum heater over other heating methods

  • Even heat distribution: no localised overheating, no cold spots — the substance is heated uniformly across the entire contact surface
  • Energy efficiency: heat is transferred directly into the drum, with almost no losses to the surroundings — considerably more economical than heated rooms or indirect systems
  • Quality preservation: gentle, controlled heating prevents thermal damage to sensitive substances such as honey, resins or food additives
  • Reduce product waste: materials that freeze, sediment or harden at incorrect temperatures cause rejects — a drum heater keeps them permanently processable
  • Plug & Play: all models are delivered fully configured and ready to operate — no installation, no modifications
  • Unattended operation: integrated thermostats and safety devices allow continuous use without supervision

Which materials is a drum heater suitable for?

Drum heaters are suitable for almost all pumpable or meltable materials stored in drums or containers. The most common applications involve:

  • Oils and lubricants: hydraulic oil, machine oil, heavy oil — heating to reduce viscosity before pumping
  • Waxes and paraffins: melting and maintaining at processing temperature
  • Resins, adhesives and sealants: heating to processing viscosity, preventing hardening at low temperatures
  • Food products: honey, syrup, vegetable fats, chocolate — gentle heating without quality loss
  • Chemicals: acids, bases, solvents — in ATEX versions also for explosive substances
  • Paints and lacquers: maintaining processing viscosity in production
  • Water and aqueous solutions: frost protection in unheated warehouses and outdoor environments

Application areas for drum heaters

Chemical & oil industry

Drum heaters are widely used for heating oils, heavy oils and oil drums in the chemical industry. Targeted temperature control reduces viscosity and enables efficient transport or safe processing.

Food & honey

In the food industry, drum heaters are used to gently warm products such as honey, syrup or fats. A uniform temperature prevents quality loss and makes filling and pumping easier.

Waxes & resins

For processing waxes, resins and adhesives, precise temperature control is essential. Drum heaters ensure that materials remain fluid and can be processed efficiently.

ATEX and explosive environments

For applications in explosion-risk zones we supply ATEX-certified drum heaters, specifically developed for safe use in Zone 1, 2, 21 and 22.

Buying a drum heater – what to consider

When purchasing a drum heater, pay particular attention to the maximum temperature, the drum material (metal or plastic), the power rating and any safety requirements such as ATEX certification. The right choice ensures efficient heating, reduces energy consumption and minimises product losses.

For standard applications up to approximately 80–100°C and plastic drums, standard heating jackets are the most economical solution. For higher temperatures, metal drums or explosion-risk environments, high-temperature versions or ATEX-certified models are recommended. If you are unsure which drum heater suits your application — contact us. We will help you find the right model.

Frequently asked questions about Drum Heaters (FAQ)

What is a Drum Heater, and what is it used for?

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  1. A Drum Heater is a flexible heating device designed to heat the contents of drums, such as metal or plastic drums. Common applications include:
  • Maintaining desired temperatures in industries like chemicals, food, oil, and pharmaceuticals.
  • Reducing material viscosity for easier handling, for example, when pumping liquids like honey, oils, or chemicals.
  • Preventing solidification of temperature-sensitive materials during storage or transport.

Explore our range of Drum Heaters to find the right solution for your application.

What types of Drum Heaters are available?

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Drum Heaters come in several designs tailored to specific needs:

  • Heating Jackets: Flexible, lightweight heaters designed to wrap around the drum.
  • Band Heaters: Compact heaters that target smaller surface areas, ideal for quick heating or confined spaces.
  • Base Heaters: Provide heat from below the drum, ideal for materials that settle or solidify at the bottom.

Waterproof Covers are also available to provide added protection in outdoor or damp environments.

Which temperature model should I choose?

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Selecting the right temperature model depends on:

  • The Material Being Heated:
    • Viscous liquids like honey, molasses, or oils require moderate heat to reduce viscosity for easy pumping or pouring.
    • Chemicals and sensitive materials may require precise temperature control to avoid degradation or damage.
  • The Drum Type:
    • Metal drums: Can handle high temperatures up to 300°C, suitable for heat-intensive applications.
    • Plastic drums: Require lower temperature models (maximum 50°C) to avoid deformation.

Need help? Contact our experts for personalized guidance on selecting the best heater for your needs.

What is the difference between metal and plastic drum heaters?

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While both types of heaters serve the same purpose, the main difference lies in their temperature limits and applications:

  • Drum Heaters for Metal Drums:
    • Designed for high-temperature use, ideal for heating chemicals, adhesives, and heavy oils.
    • Operates efficiently at temperatures up to 300°C.
  • Drum Heaters for Plastic Drums (HDPE):
    • Operate at lower temperatures to prevent softening or deformation of the drum material.
    • Best suited for applications like heating water-based products or sensitive liquids.

How do I install a Drum Heater?

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Installation varies depending on the type of drum heater:

  • Heating Jackets: Wrap the heater around the drum and secure it with adjustable buckles or straps.
  • Band Heaters: Use the provided springs to fit the heater snugly around the drum's circumference.
  • Base Heaters: Place the drum directly on top of the base heater, ensuring it is centered for even heat distribution.

Always follow the product’s detailed instructions to ensure safe and efficient operation.

How do I operate a Drum Heater?

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To operate your drum heater safely and efficiently:

  • Ensure proper installation according to the product manual.
  • Connect the heater to a suitable power source.
  • Set the thermostat to the desired temperature:
    • For viscous liquids, use moderate heat to prevent burning or overheating.
    • For plastic drums, never exceed 50°C.
  • Monitor the heating process periodically to ensure even heat distribution and avoid overheating.

Safety Tip: For hazardous environments, ensure the heater is ATEX-certified. Learn more about our ATEX Certified Solutions.

If in doubt, contact us for operational guidance.

What is the maximum temperature a Drum Heater can reach?

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The maximum temperature depends on the type of drum heater:

  • Base Heaters: Can reach up to 300°C for high-performance heating.
  • Heating Jackets and Band Heaters: Typically range from 0–200°C for controlled heating.
  • Plastic Drum Heaters: Operate at a maximum of 50°C to prevent drum damage.

Discover high-temperature drum heaters for your specific needs

Do you provide Drum Heaters for non-standard drum sizes?

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Yes, we offer custom production for drums that do not conform to standard sizes.

  • Custom drum heaters can be designed to fit unique dimensions or applications.
  • This ensures optimal heat distribution and performance for specialized needs.
  • Contact us with your specific requirements, and we’ll develop a solution tailored to your application.

Learn more about custom drum heaters.

Do you have Drum Heaters for hazardous environments?

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Yes, we provide ATEX-certified Drum Heaters designed for use in hazardous or explosive environments. Features include:

  • Certification for ATEX Zones 1 and 2 (Gas) and Zones 21 and 22 (Dust).
  • Designed to safely heat volatile or flammable materials, such as solvents or chemicals.
  • Durable construction to withstand harsh industrial conditions.

Learn more about ATEX-certified solutions.

Do you provide Drum Heaters for foodstuffs?

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Yes, we offer food-grade Drum Heaters that are specially designed for applications in the food and beverage industry:

  • Made with materials that comply with FDA hygiene standards.
  • Suitable for heating sensitive materials such as oils, syrups, honey, or other consumables.
  • Easy to clean and maintain to meet industry safety requirements.

View our food-grade drum heaters to find the perfect solution for your application.

Can I use a Drum Heater on a partially filled drum?

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Yes, but there are specific considerations:

  • Monitor Heat Distribution: Ensure even heating to avoid hot spots or damage to the drum.
  • Adjust Temperature Settings: Use a lower temperature setting if the material volume is significantly reduced.
  • Use Base Heaters for Small Volumes: Base heaters are ideal for partially filled drums as they provide direct, localized heat.

For best practices and safety tips, contact us.

What safety precautions should I follow when using a Drum Heater?

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To ensure safe operation:

  • Monitor Drum Material: Always use temperature-appropriate heaters for metal or plastic drums.
  • Avoid Overheating: Never exceed the recommended temperature setting, especially for sensitive materials or plastic drums.
  • Inspect Regularly: Check the heater and power connections for any damage before each use.
  • Use ATEX Heaters in Hazardous Environments: If working with flammable materials, choose an ATEX-certified heater.
  • Follow Manufacturer Instructions: Always refer to the user manual for safe installation and operation.

Drum heater or barrel heater – what is the difference?

The terms drum heater and barrel heater are frequently used interchangeably. While "barrel heater" is often used in older industry literature, "drum heater" has become the dominant term in European industrial practice. In practice, both terms refer to solutions for heating 200L drums and smaller containers, covering heating jackets, base heaters and band heaters.