A cost-effective alternative

What is industrial heating oil?

Our commercial heating oil is a drop-in replacement for gas oil (red diesel). It has been specifically blended to be used in boilers, dryers and heaters. Costing less than gas oil and free from increasing government fuel levies, it is saving money for businesses across all sorts of industries, from factories, garages and offices to schools, retail centres and hospitals.

Download our brochure to discover more about Furnaceflame and read full the full specifications

Our drop-in replacement for gas oil

Furnaceflame™ is a drop-in replacement for gas oil

We’ve developed Furnaceflame™ to directly replace regular gas oil (red diesel) wherever you’re using it for heating purposes. So, no matter how much gas oil you currently have in your tank, we can simply add Furnaceflame™ without needing to drain or modify your equipment.

Furnaceflame™ is a registered trademark of WFL (UK) Limited.


Speak to us about the simple way to switch to Furnaceflame



Developed for heating performance

What makes Furnaceflame™ a more cost-effective commercial heating oil?

If you’re using gas oil for heating purposes, it often costs less to use Furnaceflame™. That’s because commercial heating oil doesn’t need to meet the exacting standards of fuel for off-road mobile plants, making it cheaper to produce. Plus, Furnaceflame™ is a virgin oil that doesn’t need any costly additives.

Because Furnaceflame™ is for use in non-mobile commercial heaters, dryers and burners, so it isn’t subject to the extra government levies for fuel duty. That’s why we can offer it for a lower price than regular red diesel.

Save money and stay efficient with Furnaceflame

‘Winter-grade’ all year round, with no risk of waxing

Fully compliant with BS 2869:2017 Class D for heating applications

FAME-free and virgin heating oil for businesses

Heating oil that saves your business money

FAME-free, reliable performance

Furnaceflame™ is a high-quality industrial heating oil

Furnaceflame™ is a high-quality industrial heating oil. Other alternative fuel on the market can contain components derived from waste oils, which can increase the risk of plant failure due to fouling and reduce the efficiency of heat transfer, racking up your fuel consumption.

Choose Furnaceflame™ and you’ll get a virgin oil sourced from UK and European refineries that will keep your heaters, boilers and dryers running efficiently. There will be no compromise on performance compared to your regular gas oil. Whether you manage an office, school, factory, or farm, you can be confident that Furnaceflame™ will offer the same reliable performance as regular gas oil. And it’s completely FAME-free, hugely reducing the risk of microbial spoilage from water contamination.

Make the switch

Switching to Furnaceflame™

You can use Furnaceflame™ across all static heaters, burners and dryers. It’s fully miscible with gas oil or and most industrial heating oils that you may be using.

That means you don’t need to drain your tank or modify it to switch to our commercial heating oil. All you need to do is order the amount of Furnaceflame™ you need. Our local experts will take care of the rest, delivering it to your business when it suits you.

If you use gas oil for more than heating, burning and drying, speak to our team who will be able to see if a dual purpose or secondary tank could be a cost-effective solution for your business.


Speak to us about switching your industrial heating oil

Watson Fuels

Delivering high quality fuels across the UK

For over 60 years, we’ve been delivering fuel nationwide with our personal, flexible and customer-first ethos. We focus on the highest level of customer service and excellent quality products, making fuel and lubricants one less thing for your business to worry about.

We supply throughout the UK, delivering directly from our extensive network of depots nationwide, or through approved suppliers. Put simply, we deliver. Safely, securely, sustainably. And on time.

Get in touch to ask us about our top-quality industrial heating oil, Furnaceflame™. Fill out the form below and we’ll get back to you shortly.


Get in touch to ask us about our top-quality industrial heating oil, Furnaceflame™