What is a ZEB Heat Battery Boiler?
A ZEB heat battery boiler is a low carbon, energy-efficient alternative to a traditional gas or oil boiler. Powered by electricity, it stores energy as heat and releases it into your central heating system whenever your thermostat calls for it.
Benefits include:
- Zero emissions at point of use
- Lower running costs than direct electric systems
- Automatic use of off-peak electricity for efficiency
- Seamless integration with existing radiators and underfloor heating
Switching to a ZEB heat battery is a greener alternative to gas boilers and a key step toward a sustainable home heating solution.
To hear more from our customers, read about their experiences here.
Understanding the Boiler Upgrade Scheme (BUS)
The Boiler Upgrade Scheme (BUS) helps homeowners in England & Wales make low carbon heating upgrades more affordable.
Key points about BUS:
- Grants are provided to make energy-efficient heating systems accessible
- ZEB heat batteries are expected to be included starting late 2026
- Installations must meet the MCS standard for thermal storage, ensuring safety, efficiency, and reliability
Factors affecting eligibility may include:
- Your home’s overall heat demand
- The level of insulation in your property
Your existing heating system type
Even if your home isn’t eligible, a ZEB heat battery boiler may still be suitable. Check our FAQs for more information.
Does Your Home Qualify for the £2,500 Grant?
At tepeo, we make it simple to check eligibility. Millions of homes meet the MCS criteria and could qualify for the £2,500 grant, reducing the cost of upgrading your home heating.
Eligibility requirements include:
- You own your home
- You have an EPC from the past 10 years
- Your existing heating system is fossil fuel or direct electric (not a heat pump)
The grant is expected to launch in late 2026, so early preparation is key.
Benefits of Installing a ZEB Heat Battery Boiler
Upgrading to a ZEB heat battery boiler offers multiple advantages:
- Lower energy bills: Store electricity when it’s cheapest
- Environmentally friendly: Reduce household carbon emissions
Easy retrofit: Works with existing heating systems - Smart energy use: Automatically utilises off-peak electricity
How to Claim the £2,500 Grant
Step 1: Complete a Home Check
Visit tepeo.com to see if your property is a good fit for a ZEB heat battery boiler.
Step 2: Book a Telephone Survey
Our experts will explain how the ZEB works, assess your home, and advise on your likely BUS eligibility.
Step 3: Join priority waitlist
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.
Next Steps: Upgrade Your Home Heating
Ready to take advantage of the £2,500 grant?
- Complete a Home Check at tepeo.com
- Book a Telephone Survey with our experts
- Install your ZEB heat battery boiler and secure your grant
Need more information?
If you have questions about eligibility or want to speak with our team directly:
Call us: 020 7072 5462
Email us: customer.service@tepeo.com