Boiler Upgrade Scheme Eligibility:
Everything You Need to Know

Introduction

If you’re considering replacing your oil, LPG or older heating system with an air source heat pump, the Boiler Upgrade Scheme (BUS) could significantly reduce the cost of installation.

The scheme provides government funding towards eligible low-carbon heating systems, helping homeowners transition to more energy-efficient heating while reducing carbon emissions and lowering running costs.

At Enerus, we guide homeowners through every stage of the process—from checking eligibility and carrying out a heat loss survey to applying for the grant on your behalf and completing the installation.

In this guide, we’ll explain exactly who qualifies, how much funding is available, how the application process works, and answer the most common questions homeowners ask.

What is the Boiler Upgrade Scheme?

The Boiler Upgrade Scheme (BUS) is a UK Government initiative designed to encourage homeowners and small non-domestic properties in England and Wales to replace fossil fuel heating systems with low-carbon alternatives.

Rather than paying the grant directly to homeowners, the funding is paid to the MCS-certified installer, who deducts the grant from the overall installation cost. This means homeowners only pay the remaining balance.

The scheme aims to make renewable heating technologies more affordable while helping the UK move towards its net-zero carbon targets.

How Much Funding is Available?

For most homeowners, the Boiler Upgrade Scheme currently provides:

Air Source Heat Pumps

Up to £7,500 towards installation.

Ground Source Heat Pumps

Up to £7,500 towards installation.

Off-Gas Grid Homes (Oil or LPG)

Some eligible properties replacing oil or LPG heating systems may benefit from enhanced funding of up to £9,000, depending on the current scheme rules and eligibility at the time of application.

At Enerus, we’ll confirm exactly what funding applies before any work begins.

Who is Eligible?

Most homeowners will qualify if:

✅ You own the property.

✅ The property is located in England or Wales.

✅ You’re replacing an eligible fossil fuel heating system.

✅ The installation is completed by an MCS-certified installer.

✅ The property has a valid EPC where required.

Every property is slightly different, so eligibility is assessed on an individual basis.

Who Cannot Apply?

Some situations may prevent an application, including:

– New build properties (with some exceptions).
– Properties that have already received funding under the Boiler Upgrade Scheme.
– Certain social housing projects.
– Properties that don’t meet the scheme requirements.

If you’re unsure, we can check your eligibility free of charge.

Which Heating Systems Can Be Replaced?

The Boiler Upgrade Scheme commonly supports replacing:

– Oil boilers
– LPG boilers
– Electric heating
– Gas boilers

Many homeowners assume heat pumps are only suitable for new homes, but modern systems can work exceptionally well in existing properties when properly designed.

How Does the Application Process Work?

One of the biggest misconceptions is that homeowners need to apply themselves.

In reality, the process is straightforward:

1. Arrange a home survey.
2. We carry out a full heat loss calculation.
3. We design the heating system.
4. We confirm your eligibility.
5. We apply for the grant on your behalf.
6. Ofgem confirms the voucher.
7. We complete the installation.
8. The grant is deducted from your final invoice.

You don’t need to navigate the paperwork alone—we manage the process from start to finish.

Why Choose Enerus?

Choosing the right installer is just as important as choosing the right heat pump.

At Enerus, we don’t install “off-the-shelf” systems. Every installation begins with detailed design calculations to ensure your new heating system performs efficiently for years to come.

Our service includes:

– MCS-certified installation
– Detailed room-by-room heat loss calculations
– Heat pump sizing and design
– Radiator assessments
– Underfloor heating design where required
– Grant application management
– Manufacturer-backed warranties
– Ongoing servicing and support