Struggling with Rising Heating Oil Costs?

Struggling with Rising Heating Oil Costs? Why More Businesses Are Switching to Biomass

For many commercial properties and large domestic estates, heating oil has long been the default choice for off-gas heating.

But over the past few years, oil prices have become increasingly volatile—leaving businesses exposed to rising and unpredictable energy costs.

If you’re currently relying on oil to heat multiple buildings, workshops, or large properties, now is the time to reassess whether it’s still the right solution.

Biomass heating offers a proven alternative—delivering cost savings, stability, and long-term sustainability. You can explore the different options available on Treco’s biomass boiler systems page.

Why Heating Oil Is Becoming a Problem

1. Ongoing Price Volatility

Heating oil prices are heavily influenced by global markets. Political instability, supply chain disruptions, and demand fluctuations all play a role—making it difficult to predict costs.

For businesses, this lack of certainty makes budgeting increasingly challenging.

2. High Running Costs

Compared to renewable alternatives, oil is becoming one of the more expensive ways to generate heat—particularly for sites with high or consistent demand.

For estates, farms, and commercial buildings, this can result in significant annual spend. 

3. Carbon and Compliance Pressures

As the UK continues to move towards net zero, organisations are under growing pressure to reduce carbon emissions.

Oil systems, by their nature, are carbon-intensive—making them less viable as a long-term solution.

A Practical Alternative: Biomass Heating

Biomass boilers use renewable fuel sources such as wood pellets or wood chip to generate heat.

Modern systems are fully automated and designed to provide reliable, controllable heat across a wide range of applications—from commercial buildings to multi-property estates.

For sites currently using oil, biomass offers a direct and effective replacement.

For a more detailed overview of how these systems work in real-world applications, visit Treco’s commercial biomass boiler page.

The Benefits of Switching from Oil to Biomass

1. Lower and More Stable Fuel Costs

One of the most immediate benefits of biomass is fuel cost.

Biomass fuels are typically cheaper than heating oil and far less exposed to global market fluctuations. This provides greater cost stability and improved long-term budgeting.

For high-usage sites, the savings can be substantial over time.

If you’re comparing systems, Treco outlines the advantages in more detail on our biomass heating solutions page.

2. Significant Reduction in Running Costs

Where there is consistent heat demand, biomass systems can deliver a strong return on investment.

Switching from oil to biomass often results in meaningful reductions in annual heating spend—particularly across larger sites or multiple buildings.

3. Improved Energy Security

With oil, you are dependent on external supply and pricing.

Biomass offers greater control—especially where fuel can be sourced locally. This reduces exposure to supply disruptions and gives you more confidence in long-term energy planning.

4. Lower Carbon Emissions

Biomass is considered a low-carbon heating solution, helping businesses and property owners reduce their environmental impact.

For organisations with sustainability targets, switching away from oil is often a key step.

Treco also supports clients in delivering long-term, sustainable heating through fully managed systems and ongoing support services.

5. Designed for Larger Heat Demands

Biomass systems are particularly well suited to:

• Farms and agricultural buildings
• Estates with multiple properties
• Industrial and commercial sites
• District heating systems
• Large domestic properties with outbuildings

These are environments where oil systems are often expensive to run—and where biomass can deliver the greatest benefit.

You can see examples of these applications across Treco’s case studies and sectors pages.

Is Your Site Suitable for Biomass?

While biomass is a strong alternative to oil, it’s not a one-size-fits-all solution.

Key factors to consider include:

• Heat demand: Consistent usage delivers the best results
• Space availability: Room for a plant room and fuel storage
• System design: A correctly specified system is critical to performance
• Fuel type: Pellet or chip depending on site requirements

Treco takes a consultative approach to system design, ensuring each installation is tailored to the application rather than a standardised solution. Learn more about our approach to biomass installations.

Replacing an Existing Oil System

In most cases, an existing oil boiler can be replaced or integrated with a biomass system.

This can be done as:

• A full replacement of the oil system
• A hybrid setup where biomass provides the primary heat load
• A staged transition to reduce upfront investment

The right approach will depend on your site, usage, and long-term goals. Treco offers a complete end-to-end service—from initial design through to long-term maintenance. You can find more about our capabilities here.

Choosing the Right Biomass Partner

Switching from oil to biomass is a significant investment—so getting the design and installation right is essential.

An experienced provider will:

• Assess your current system and usage
• Design a solution tailored to your site
• Install and commission the system correctly
• Provide ongoing servicing and support

With over 20 years’ experience and more than 1,000 systems installed across the UK, Treco focuses on delivering the right solution for each application—ensuring performance, reliability, and long-term value.

Is It Time to Move Away from Oil?

If you’re seeing rising fuel bills, struggling with price volatility, or planning for the future of your heating system, biomass is well worth considering.

For the right site, it offers a practical and proven way to reduce costs, improve energy security, and move towards a more sustainable heating solution.

How Treco can help

If you’re currently using heating oil and want to understand what switching to biomass could look like for your site, Treco can provide a detailed assessment and tailored recommendation.

Get in touch with the team for advice.