Sunamp Heat Batteries

Full installation service with 10 Years warranty

Direct Water Heater

Sunamp Heat Batteries

The sleek alternative to direct cylinders saving space and energy.

Sunamp UniQ eHW heat batteries are the smart way to heat water and save space and money too, especially when combined with an off-peak tariff.

The ideal replacement for outdated direct hot water cylinders. Heated by an internal element, they guarantee powerful showers at the temperature that is perfect for you.

The sleek design and advanced storage technology makes them up to four times smaller than the equivalent hot water cylinders freeing up valuable storage space in your home.

Available in four sizes which can also be combined, they are the right solution to perfectly match the exact hot water requirements of your property.

Full of Benefits

Direct Water Heater Sunamp Heat Batteries

Cost Effective

Save money using off-peak or iPV tariffs and improved efficiency.

Compact Design

Being up to four times smaller than an equivalent hot water cylinder.

Energy Efficient

Instant hot water at mains pressure with extremely low heat losses.


Non-toxic and significantly reduced risk of legionella.


Easily combined to increase storage capacity.


Can be used with any volt-free signal switch, including smart controllers such as Nest, Hive etc.


Models Available

Direct Water Heater

Our prices are guaranteed and include removing your old system and fitting your new Sunamp with all the pipe work and extras along with specialist delivery.

Available in four sizes which can also be combined, they are the right solution to perfectly match the exact hot water requirements of your property.

Thermino Thermino 150 e Thermino 210 e Thermino 300 e
Heat Storage Capacity (kWh)1 6 9 12
Equivalent Hot Water Cylinder Size2 142 212 284
V40, Volume of Hot Water Available at 40°C (L) 185 300 370
Standby Heat Loss Rate (kWh/24h | [W]) 0.68[28] 0.77[32] 0.84[35]
Energy Efficiency Rating C C C
Recommended Maximum Flow Rate (L/Min) 15 20 25
Heater Power Rating (~230V) 2.8kW 2.8kW 2.8kW
Supply Price* £1,945 plus VAT £2,182 plus VAT £2,889 plus VAT
Installed Price** £2,895 plus VAT £3,132 plus VAT £3,839 plus VAT

* Supply and Delivery to the point of installation:

We use our delivery partners Zonzini to deliver your Sunamp on the date of installation directly to the point of installation. This service also comes with a .5L expansion vessel and 22mm Thermostatic blending valve as required by Sunamp to conform with their installation instructions for a valid warranty. For PV versions we also include the My Energi Eddi solar diverter and Harvi to maximise the use of excess PV.

** Full installation by Accredited Sunamp Installers:

Our full installation service includes our supply and delivery service as above using Zonzini to the point of installation plus a full bore isolation valve, anti lime scale device, all pipe work removal of old pipework (except under floors) and removal of old unwanted header tanks if possible.

Choose Your Sunamp

Consumer & Trade Suppliers

Nationwide Service

We supply and fit directly to the consumer or supply to the trade throughout the UK so if you are interested in a Sunamp Heat Battery we can help you.

If you are planning to improve your property, you are a housing developer or a landlord. Thermal energy storage technology can cut carbon emissions using efficient eco-friendly heat batteries.

If you are a developer or in the trade it is now time to start thinking about alternatives to the traditional way we would expect to deliver hot water. Working alongside a renewable energy source heat batteries can deliver environmental benefits, save space and improve cost efficiencies.

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Comments From Our Customers

Eco Smart Heat Testimonials

  • Cannot recommend enough, the prices are really competitive and the service is second to none.

    They advised on the best Sunamp for my house and took out my old system and fitted everything to a really high standard. Everything works really well and is saving me money!



Why Choose Us?

Eco Smart Heat

Choosing your new heating solution is a big decision, it is important you choose a company you can trust that offer a great service at reasonable prices.

We use the latest electric thermal technology from the best brands with a full rip out and fit service by our engineers who have years of experience. Delivering an energy efficient hot water and heating system.

All backed up with unbeatable warranties:

Sunamp Heat Batteries: 10 Year Warranty
Electrorad Radiators: 30 Year Warranty
Electrorad Radiators Electrical Components: 5 Year Warranty

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