What is the Boiler Upgrade Scheme?

The Boiler Upgrade Scheme (BUS) is a UK government–backed grant designed to accelerate the transition away from fossil fuel heating and towards low-carbon technologies.  Administered by Ofgem, the scheme provides financial support to property owners in England and Wales, helping reduce the cost of replacing traditional gas, oil or LPG boilers with efficient, renewable heating systems. 

The Boiler Upgrade Scheme is running until March 2030 and is part of the government’s £14.7 billion Warm Homes Plan, making it one of the UK’s most significant incentives for low-carbon heating. By lowering installation costs and encouraging the adoption of clean heat, the scheme plays a crucial role in reducing carbon emissions, improving energy efficiency and supporting the UK’s transition to net zero – while delivering long-term comfort and sustainability for properties nationwide.

The UK government has announced that heat batteries, including the ZEB heat battery boiler, will be eligible for the Boiler Upgrade Scheme (BUS), offering a £2,500 grant to qualifying homeowners.

Everything you need to know

Is there a government grant available for those purchasing a ZEB?

Yes! The government has recently announced that heat batteries, such as the ZEB heat battery boiler, will be included in the Boiler Upgrade Scheme (BUS) in England and Wales.

Eligible homeowners may receive a £2,500 grant for heat battery installations starting winter 2026.

Please note: Certain conditions must be met for your home to qualify. For full details, check out our blog on the £2,500 grant for ZEB heat batteries.

When will the grant be available?

The grant is expected to take effect by winter 2026.

Some regulatory requirements must be finalised before heat batteries can be registered under the scheme.

If you want to secure your spot and be ready for installation next winter, join our priority waitlist by contacting a member of our team.

How can I find out if I am eligible for the grant?

Getting started is easy:

  1. Complete our online Home Check – quickly see if your property is suitable for a ZEB heat battery boiler.
  2. Book a Telephone Survey – one of our experts will guide you through your options and confirm whether your home is likely to qualify for the grant.

These steps help ensure your home is fully compatible with a ZEB system and meets the Boiler Upgrade Scheme eligibility criteria.

How can I secure my ZEB heat battery boiler in time for winter 2026?

Due to increased demand following the availability of grant funding, we’ve introduced a priority waitlist for customers interested in installing a ZEB heat battery boiler.

Joining the waitlist helps ensure you can secure a ZEB and benefit from a prompt installation when the grant becomes available next year.

To reserve your place on the priority waitlist, we ask for a fully refundable deposit, which can be taken from today.

Can I still buy a ZEB heat battery if my property does not qualify for the grant?

Yes, of course. Provided tepeo or one of our tepeoPRO installers has conducted a home survey to ensure the system is suitable for your home and heating needs; you can still purchase a ZEB as normal. 

The government wants Boiler Upgrade Scheme funding to go to homes that meet clear eligibility rules, similar to those used for heat pumps.

For heat batteries, a home must

  • get at least 75 percent of its heating on the coldest days from overnight charging
  • the heat battery must be capable of providing all the heating for the home

These rules are there to ensure the lowest running costs.

However, a home that does not meet the grant criteria may still be an excellent fit for a ZEB. This can include cases such as

  • the running costs remain reasonable even with some daytime charging
  • secondary heating is available for the very coldest days
  • the home’s heating is run by a zoned system involving more than one heating solution
  • the building is not heated fully throughout the year, for example holiday homes

In these situations, a ZEB can still be a practical and effective low carbon option, even without the subsidy. 

To find out if your property is suitable for a ZEB Boiler simply complete our short Home Check online. 

Who can I contact if I have more questions?

If you have questions about eligibility or want to speak with our team directly we’d be happy to help.

Call us: 020 7072 5462
Email us: customer.service@tepeo.com

Find out if you're eligible today!

Step 1

Complete our online ZEB Home Check to quickly see if your property is suitable for a ZEB heat battery boiler.

ZEB Home Check

Step 2

Book a Telephone Survey with one of our experts who will guide you through your options and confirm whether your home is likely to qualify for the grant.

Telephone Survey