The ZEB is designed to make moving away from gas, oil or LPG feel simple. It works with your existing central heating, with no outdoor unit and minimal disruption – giving you familiar heating with smarter technology behind it.
With colder months on the way, now is a great time to get your home ready for winter. And for a limited time, you can get £2,500 off your ZEB, making the switch to cleaner, intelligent electric heating even easier.
A tepeo ZEB heat battery boiler works a little differently behind the scenes, while heating your home in a way that feels reassuringly familiar.
It simply charges, stores heat and releases it when you need it.
1
Charges like a battery
The ZEB uses smart charging to work out the best times to heat its ceramic core, making the most of cheaper, lower-carbon electricity and your energy tariff.
2
Stores heat for later
The heat is stored safely and efficiently inside the boiler’s ceramic core, ready to be released whenever your home needs it.
3
Heats your home as normal
When your home needs heat, the ZEB sends it straight to your existing radiators or underfloor heating - just like a traditional boiler would.
Get £2,500 off today with the tepeo early grant match
Smart charging that knows when and how much to charge
Smart Charging is what makes the ZEB truly intelligent. It learns your home’s heating patterns, responds to the weather and works with your electricity tariff to decide when to charge and how much energy to store – helping you make better use of cheaper electricity and avoid charging when you don’t need to.
That means you can largely leave the ZEB to manage itself. It plans ahead, adapts continuously and keeps optimising in the background.
You can still see what it’s doing and take control at any time through the tepeo app.
Tell us a little bit about your home and heating system. We'll use your answers to let you know whether a ZEB looks like a good fit.
2
Talk to us for expert advice
If you’d like to ask a few questions or talk through your home in more detail, you can book a call with a tepeo expert at a time that suits you. Or, if you’re ready to move ahead, you can skip the call and go straight to the next step.
3
Complete your Digital Home Assessment
Complete an online form with a few details, photos and videos of your home. It’s simple to fill out and gives our tepeoPRO installers everything they need to assess your installation and prepare a quote.
4
Receive your quote
Once your assessment has been reviewed, you’ll receive a quote for your ZEB installation. You can then take a look through everything and decide whether you’d like to go ahead.
Check if your home is suitable
Complete our quick, 30 second property check to see if the tepeo heat battery boiler could work efficiently in your home.
Please choose your property type, floor area, build period, and main fuel below to calculate your estimate.
Loading property data...
Select Property Type
Select Main Fuel
Select Build Period
Mapped Category:
189019201950198020102026
Adjust Floor Area
Type your value directly or click and hold the up/down buttons to adjust. Press Enter to confirm.
SQM
We have just 3 simple questions for you
Have you renovated your home in the last 10 years to add insulation or double glazing to your windows?
Do you have a wet central heating system i.e. radiators or underfloor heating?
Do you have a hot water cylinder?
Good news! The ZEB is a match for your home.
Based on your estimated usage, a ZEB can comfortably heat your home.
While we aren't actively installing in your area today, we are expanding quickly. Leave your details below to join our priority waitlist and be first in line when we launch in your area.
Your home may not be a good fit for a ZEB
Based on our estimate, which considers your property size and available building records, your home's heat demand appears to be above the suitable range for a ZEB.
If you think this doesn't look right, you can check your latest energy bills and update the heat demand figure on this page. We'll then recheck your suitability and update your estimate.
ADDRESS:
Heat Demand
kWh*
✓ PerfectToo high
*assumes your renovation included insulation/window upgrades
Delivery Area
Covered
✓ Active installExpanding soon
Central Heating
Yes
✓ CompatibleSystem needed
Water Cylinder
Yes
✓ ExistingNew tank needed
Estimated Installed Cost
£2,500 Grant Included
Starting from £5,995
inc. VAT
Estimated running costs
Running Cost Breakdown & Assumptions
Compares fuel consumption, standing charges, and annual maintenance vs your current boiler.
Tariff: Optimised on cheapest flexible tariff ().
Click '?' to view full calculation breakdown
Greener
Save / year
Similar to current bills
Higher running costs
Reduces ~ kg CO2/yr
Ready to take the next step?
Enter your contact details below to get an email with your estimate or book a quick, no-obligation call with one of our heating experts.
On the call, we'll review your home details, answer any questions, and help turn this estimate into a tailored quote. We'll also email you a copy of your estimate and report straight away.
Want to be added to the waiting list?
If you'd like to be notified as soon as we launch in your area, enter your contact details below to join our priority waitlist.
We'll email you a copy of your initial estimate and suitability report right away, and drop you a message as soon as installation opens in your area.
Still think the ZEB is right for you or just want to stay in touch?
If your actual usage is over 14,000 kWh, the ZEB could still work if you have secondary heating (like a wood burner or heat pump), a hybrid setup, or a 3-phase electrical supply. Please fill out your details below and one of our heating specialists will get in touch to discuss your options.
Please enter a valid phone number (min 10 digits)
Please enter a valid email address
Optional
Optional
We may occasionally email you with useful information about ZEB suitability, costs and tepeo services. You can opt out at any time.
By proceeding, you agree that tepeo will use your details to respond to your enquiry in accordance with our Privacy Policy.
Your Next Step
✓ Ready to send your estimate✓ Choose email or booking to continue
Compatibility Check
What are your options?
If you are planning to install wet central heating, or want to explore bespoke arrangements with our specialists, our team is on hand to help.
Edit Heat Demand
If you think our estimate isn't quite right for your home, enter your actual annual heating demand below. You can usually find your annual gas or heating kWh on your recent energy bills.
kWh / yr
Calculation Transparency
Annual Running Cost Estimate & Assumptions
Important Notice on Running Cost Estimates
The cost and carbon figures shown are running cost estimates based on your inputs, typical home efficiencies, smart thermostat usage patterns, and weather data. Your actual experience and heating bills will vary depending on property insulation, household heating habits, and your specific energy tariffs. We provide estimated ranges to reflect natural variations in seasonal weather and occupancy.
How the annual costs compare
Cost Element
Current Boiler
tepeo ZEB Heat Battery
Fuel Consumption Cost
Energy for space heating & hot water
Based on tariff & ~85% boiler efficiency
Smart off-peak charging on
Standing Charges
Dedicated heating supply charges
Gas supply standing charge (~29.68p/day or ~£108/yr)LPG bulk tank rental (~£60-£70/year)£0 dedicated supply charge (bulk fuel deliveries)£0 extra (uses main electricity supply)
£0 extra (uses existing electricity meter)
Maintenance & Servicing
Annual care & upkeep
Typical annual boiler service or cover (~£120-£180)
Included in tepeo Care Plan
Estimated Total / Year
Net Estimated Annual Savings:
Flexible Electricity Tariff Assumptions
To achieve low running costs and take advantage of the ZEB's thermal storage, you will switch to a flexible time-of-use electricity tariff. The ZEB automatically charges when renewable electricity is cheapest on the grid (typically overnight) and supplies heat on demand without drawing peak-rate power.
EV Tariff (e.g. EDF GoElectric)
• 6.99p / kWh off-peak (23:00 - 06:00)
• 33.59p / kWh daytime (06:00 - 23:00)
*You may require an EV to access this tariff.
Heating Tariff (e.g. Octopus Cosy)
• 13.48p / kWh during cheap charge slots
• 41.24p / kWh peak periods
• 27.49p / kWh standard daytime
*The data is based on tariffs during the October-December 2026 Ofgem price cap period.
Current Boiler & Fuel Assumptions
• Mains Gas Baseline: Using 7.97p/kWh (National average Ofgem price cap: 1 October - 31 December 2026) and 85% typical gas boiler efficiency. Standing charge: 29.68p/day (~£108/yr).
• Heating Oil Baseline: Using 102.03p/litre (Government Domestic energy price indices, June 2026) and 85% typical oil boiler efficiency (typically no standing charge, fuel delivery charges apply).
• Solid Fuel Baseline: Modelled on heating oil equivalent cost (102.03p/litre) and 85% typical efficiency for automated central heating equivalence.
• LPG Baseline: Using 98p/litre (Based on online quote) and 85% typical LPG boiler efficiency, plus ~£60-£70/year tank rental charge.
• Direct Electric Baseline: Using 26.32p/kWh (National average Ofgem price cap: 1 October - 31 December 2026) and 100% direct electric efficiency (£0 dedicated standing charge, uses standard household electricity supply).
• Half-Hourly Optimisation: Modelling uses half-hourly charging optimisation over a typical year using real UK weather data from 2022-2024 and typical smart thermostat daily heating profiles. The Heat Battery is assumed to be inside the heated envelope of the building so heat loss contributes to heating the home.
Estimation Notes
The cost and carbon estimates here are estimates based on your inputs, a typical home, and standard usage patterns. Actual results will vary depending on property insulation, household habits, and your specific tariff. Ranges reflect expected variations in real-world outcomes.
Wet heating system: As your home does not currently have radiators or underfloor pipework, our heating engineer will also discuss options for installing wet central heating during your call.
Book a call with one of our experts
Choose a time that suits you and we'll talk through your home, your estimate and any questions you have about the ZEB.
✓ We've also emailed a copy of your initial estimate to
We're emailing your complete estimate and suitability report to . Please check your inbox shortly.
Why not book a call right now?
While you wait for your email, why not lock in a quick call with one of our heating experts? We can review your home's details together, answer any questions, and help turn your estimate into a bespoke installation quote.
Please choose your property type, floor area, build period, and main fuel below to calculate your estimate.
Loading property data...
Select Property Type
Select Main Fuel
Select Build Period
Mapped Category:
189019201950198020102026
Adjust Floor Area
Type your value directly or click and hold the up/down buttons to adjust. Press Enter to confirm.
SQM
We have just 3 simple questions for you
Have you renovated your home in the last 10 years to add insulation or double glazing to your windows?
Do you have a wet central heating system i.e. radiators or underfloor heating?
Do you have a hot water cylinder?
Good news! The ZEB is a match for your home.
Based on your estimated usage, a ZEB can comfortably heat your home.
While we aren't actively installing in your area today, we are expanding quickly. Leave your details below to join our priority waitlist and be first in line when we launch in your area.
Your home may not be a good fit for a ZEB
Based on our estimate, which considers your property size and available building records, your home's heat demand appears to be above the suitable range for a ZEB.
If you think this doesn't look right, you can check your latest energy bills and update the heat demand figure on this page. We'll then recheck your suitability and update your estimate.
ADDRESS:
Heat Demand
kWh*
✓ PerfectToo high
*assumes your renovation included insulation/window upgrades
Delivery Area
Covered
✓ Active installExpanding soon
Central Heating
Yes
✓ CompatibleSystem needed
Water Cylinder
Yes
✓ ExistingNew tank needed
Ready to take the next step?
Enter your contact details below to get an email with your estimate or book a quick, no-obligation call with one of our heating experts.
On the call, we'll review your home details, answer any questions, and help turn this estimate into a tailored quote. We'll also email you a copy of your estimate and report straight away.
Want to be added to the waiting list?
If you'd like to be notified as soon as we launch in your area, enter your contact details below to join our priority waitlist.
We'll email you a copy of your initial estimate and suitability report right away, and drop you a message as soon as installation opens in your area.
Still think the ZEB is right for you or just want to stay in touch?
If your actual usage is over 14,000 kWh, the ZEB could still work if you have secondary heating (like a wood burner or heat pump), a hybrid setup, or a 3-phase electrical supply. Please fill out your details below and one of our heating specialists will get in touch to discuss your options.
Please enter a valid phone number (min 10 digits)
Please enter a valid email address
Optional
Optional
We may occasionally email you with useful information about ZEB suitability, costs and tepeo services. You can opt out at any time.
By proceeding, you agree that tepeo will use your details to respond to your enquiry in accordance with our Privacy Policy.
Your Next Step
✓ Ready to send your estimate✓ Choose email or booking to continue
Compatibility Check
What are your options?
If you are planning to install wet central heating, or want to explore bespoke arrangements with our specialists, our team is on hand to help.
Edit Heat Demand
If you think our estimate isn't quite right for your home, enter your actual annual heating demand below. You can usually find your annual gas or heating kWh on your recent energy bills.
kWh / yr
Calculation Transparency
Annual Running Cost Estimate & Assumptions
Important Notice on Running Cost Estimates
The cost and carbon figures shown are running cost estimates based on your inputs, typical home efficiencies, smart thermostat usage patterns, and weather data. Your actual experience and heating bills will vary depending on property insulation, household heating habits, and your specific energy tariffs. We provide estimated ranges to reflect natural variations in seasonal weather and occupancy.
How the annual costs compare
Cost Element
Current Boiler
tepeo ZEB Heat Battery
Fuel Consumption Cost
Energy for space heating & hot water
Based on tariff & ~85% boiler efficiency
Smart off-peak charging on
Standing Charges
Dedicated heating supply charges
Gas supply standing charge (~29.68p/day or ~£108/yr)LPG bulk tank rental (~£60-£70/year)£0 dedicated supply charge (bulk fuel deliveries)£0 extra (uses main electricity supply)
£0 extra (uses existing electricity meter)
Maintenance & Servicing
Annual care & upkeep
Typical annual boiler service or cover (~£120-£180)
Included in tepeo Care Plan
Estimated Total / Year
Net Estimated Annual Savings:
Flexible Electricity Tariff Assumptions
To achieve low running costs and take advantage of the ZEB's thermal storage, you will switch to a flexible time-of-use electricity tariff. The ZEB automatically charges when renewable electricity is cheapest on the grid (typically overnight) and supplies heat on demand without drawing peak-rate power.
EV Tariff (e.g. EDF GoElectric)
• 6.99p / kWh off-peak (23:00 - 06:00)
• 33.59p / kWh daytime (06:00 - 23:00)
*You may require an EV to access this tariff.
Heating Tariff (e.g. Octopus Cosy)
• 13.48p / kWh during cheap charge slots
• 41.24p / kWh peak periods
• 27.49p / kWh standard daytime
*The data is based on tariffs during the October-December 2026 Ofgem price cap period.
Current Boiler & Fuel Assumptions
• Mains Gas Baseline: Using 7.97p/kWh (National average Ofgem price cap: 1 October - 31 December 2026) and 85% typical gas boiler efficiency. Standing charge: 29.68p/day (~£108/yr).
• Heating Oil Baseline: Using 102.03p/litre (Government Domestic energy price indices, June 2026) and 85% typical oil boiler efficiency (typically no standing charge, fuel delivery charges apply).
• Solid Fuel Baseline: Modelled on heating oil equivalent cost (102.03p/litre) and 85% typical efficiency for automated central heating equivalence.
• LPG Baseline: Using 98p/litre (Based on online quote) and 85% typical LPG boiler efficiency, plus ~£60-£70/year tank rental charge.
• Direct Electric Baseline: Using 26.32p/kWh (National average Ofgem price cap: 1 October - 31 December 2026) and 100% direct electric efficiency (£0 dedicated standing charge, uses standard household electricity supply).
• Half-Hourly Optimisation: Modelling uses half-hourly charging optimisation over a typical year using real UK weather data from 2022-2024 and typical smart thermostat daily heating profiles. The Heat Battery is assumed to be inside the heated envelope of the building so heat loss contributes to heating the home.
Estimation Notes
The cost and carbon estimates here are estimates based on your inputs, a typical home, and standard usage patterns. Actual results will vary depending on property insulation, household habits, and your specific tariff. Ranges reflect expected variations in real-world outcomes.
Wet heating system: As your home does not currently have radiators or underfloor pipework, our heating engineer will also discuss options for installing wet central heating during your call.
Book a call with one of our experts
Choose a time that suits you and we'll talk through your home, your estimate and any questions you have about the ZEB.
✓ We've also emailed a copy of your initial estimate to
We're emailing your complete estimate and suitability report to . Please check your inbox shortly.
Why not book a call right now?
While you wait for your email, why not lock in a quick call with one of our heating experts? We can review your home's details together, answer any questions, and help turn your estimate into a bespoke installation quote.
Both use electricity. Both can help reduce home heating emissions. And both have a role to play in the UK’s transition to cleaner heating. But they work in very different ways.
The right choice depends on your property, your heating system, your budget, and how much disruption you are comfortable with during installation.
Read our full comparison to better understand which is right for you.
The tepeo ZEB replaces the central heating side of your existing system. If you currently have a combi boiler, you’ll just need a separate hot water solution alongside it.
That’s a normal part of switching to any low-carbon heating, with several options available to suit different homes, spaces and budgets:
Traditional hot water cylinders
A reliable and cost-effective option that stores hot water ready for when your home needs it.
Smart cylinders
A more intelligent way to manage hot water, using controls to heat what you need more efficiently and help reduce unnecessary energy use.
Compact heat batteries
A space-saving alternative to a traditional cylinder, storing energy in a compact unit and delivering hot water when you need it.
Kevin: A smart electric heating setup, with £2,500 off
Read about how the tepeo ZEB heat battery boiler helped Kevin complete his move away from gas. The Home: A detached, four-bedroom property in... Read more
When Anna and Gary upgraded the heating in their three-bedroom semi-detached home in Thame, they wanted an electric system that suited the property without... Read more
Damian & Rachel: replacing their gas boiler with a ZEB
Quick Summary: The Switch at a Glance The Property: Three-bedroom semi-detached house with a utility room and garden office. The Homeowners: Damian, Rachel and... Read more
Your ZEB comes with up to a 10-year guarantee, plus two ways to keep it looked after: an annual ZEB Health Check or our monthly tepeo Care Plan, which includes additional monitoring and support.
And if you ever need a hand, you’ll have our customer team behind you. Great customer service is something we’re proud of, so you can buy your ZEB knowing you’ll be well looked after long after installation.
Ready to take the next step towards low-carbon home heating? Start by completing our simple home check.
If your home looks suitable for a ZEB, you’ll then be given the option to book a call with an expert at tepeo to chat through your needs, the installation process, and flexible financing options.
Latest updates, advice and insights from tepeo – covering our heat battery boiler, low-carbon home heating, industry news and practical guidance for homeowners.
