At Arne Nielsen A/S, we keep a close eye on the heating and combustion industry — and few topics are as relevant right now as fuel flexibility. A recent article from Finnish burner manufacturer Oilon shows how far versatile combustion technology has come, and why it stays central to a dependable, lower-carbon energy future.
Why fuel flexibility matters for modern heating
The fuels powering industrial and commercial heating are changing. Alongside familiar options like natural gas and fuel oil, renewable and locally produced fuels are gaining ground — biogas chief among them. Biogas is largely a blend of methane and carbon dioxide, and because it often arrives as a by-product of agriculture or industry, it can cut emissions while keeping energy sourcing close to home.
The catch is consistency. Biogas quality and supply can vary, and at peak demand a fuel with a higher heating value may be needed. That’s where dual-fuel and combination burners earn their place: by running on more than one fuel, they keep heat flowing even when conditions shift.
For heating operators, the advantages add up:
- Lower emissions with renewable, locally produced biogas
- Uninterrupted heat, even when fuel quality or supply fluctuates
- A practical route to decarbonization — no need to rip out existing systems
- Future-ready operation as renewable and synthetic fuels take a bigger share
Dual-fuel burners, proven in the real world
This isn’t theory. Manufacturers like Oilon have installed combination burners that switch between natural gas and biogas in demanding industrial settings — from retrofits in North America to biogas projects across South America. These installations show that cleaner, locally sourced fuels can be adopted without tearing out existing equipment or interrupting production.
What this means for Danish heating customers
The direction of travel is clear. The share of fossil fuels will keep falling and renewable and synthetic fuels will take on a bigger role — but versatile, reliable combustion technology isn’t going anywhere. Industry still needs high temperatures and flexible energy production, and the right burner makes that transition smoother and more economical.
Choosing the right combustion technology — and the right partner to support it — is what keeps a heating system efficient and future-ready. That’s the part we care about most.
Have questions about reliable heating solutions or fuel-flexible combustion? Get in touch at info@arnenielsen.com — we’re happy to help.