Industrial heating oil Q&A: how to beat cold weather, the right way

Many businesses rely on gas oil (red diesel) for industrial heating, but there’s a more cost-effective and efficient alternative available. Industrial heating oil is a drop-in solution that works seamlessly across various settings, including construction sites, leisure facilities, and farms.

You might be surprised to learn how accessible and convenient this option is. To help you explore its benefits, we’ve answered the most common questions our customers ask about industrial heating oil.

What is industrial heating oil?

Industrial heating oil,  available through Certas Energy under the brand name Therma35, is a highly cost-efficient drop-in alternative to conventional Ultra Low Sulphur Class A2 gas oil (red diesel). Because it complies with government regulations for use in a range of commercial and non-commercial heating applications, it is already a highly popular solution across various sectors.

What can industrial heating oil be used for?

Industrial heating oil is a versatile alternative to gas oil, suitable for any heating application without requiring modifications to equipment or machinery. However, it is strictly for heating purposes and cannot be used to power mobile or stationary plant or machinery. Its applications are diverse and include:

  • Space and central heating: Ideal for apartment blocks, commercial buildings, schools, hospitals, and site cabins.
  • Drying and industrial heating: Commonly used in agriculture for grain dryers on farms, as well as in metal processing and tarmac production.
  • Industrial boiler systems: Supports heat-related processes in food and beverage manufacturing, abattoirs, dairies, distilleries, and animal feed mills.

Why is industrial heating oil less expensive than gas oil?

Gas oil requires specific cetane levels to work effectively in modern diesel engines. However, since Therma35 is exclusively for heating applications, it doesn’t need the costly addition of cetane or expensive sulfur removal processes. This makes industrial heating oil more cost-efficient to produce while remaining fully compliant with regulations. Additionally, it delivers better value for everyday use, as it burns more slowly than standard gas oil.

What are the other benefits of using industrial heating oil?

Getting ready and stocking up in time for winter is especially important when it comes to heating oil: a sudden drop in temperature due to a lack of supply may not only disrupt production, but it can also severely damage equipment or even structures in the event of a burst pipe, so being able to store it up ahead of a cold snap is a major benefit.

An important benefit of Therma35 is its stability and efficiency. Industrial heating oil is safe to store all year round, because it contains zero bio content. That means you can stock up in advance without worrying about spoilage due to microbial content, interruption or waxing. “Waxing” refers to the build-up of wax crystals in fuel that can clog pipes and lead to equipment failure.

How will transitioning to industrial heating oil impact my business?

The great news is that switching over to Therma35 is incredibly simple. It is a drop-in alternative that is entirely miscible with red diesel. That means it is not necessary to clean out or empty your gas oil tank before topping up with Therma35. It is important to remember that since Therma35 is only permitted for heating applications, it should only be mixed with gas oil that is intended exclusively for heating.

How can my business make the switch to industrial heating oil?

Certas Energy is committed to helping businesses fuel a more efficient and successful future. As part of our extensive range of products, we offer Therma35 and kerosene alongside fuels, lubricants, additives, and heating oils—everything you need to keep your farm or business running smoothly.

As the UK’s largest fuel distributor, we provide a reliable supply of high-quality industrial heating oil, delivered in bulk to customers across all sectors and regions.

Contact us today for a personalised quote and see how Therma35 can help your business save money this winter—and for years to come.

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