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Sunamp Smart Water Cylinders

Ensure access to instant hot water and be energy efficient and eco-friendly at the same time

Whether you’re planning to improve your existing property or embark on a new build project, Sunamp’s space saving, eco-friendly, safe and efficient thermal batteries store heat to deliver instant, high-flow rate hot water for your home.

Up to four times smaller than the average family’s hot water cylinder

Our Thermino heat batteries can replace standard hot water cylinders and work with boilers, mains electricity, heat pumps and solar panels to reduce energy use and increase living space.

Thermino batteries come with a market-leading 10-year warranty. What’s more, our batteries are easy to install and require no routine maintenance.


Thermino thermal storage for domestic hot water

Thousands of Sunamp thermal batteries are already in homes across the UK storing heat from low-carbon energy sources and releasing it for mains-pressure hot water when needed.Our Thermino batteries replace traditional hot water cylinders – direct (for grid electricity and solar PV) or indirect (for boilers and heat pumps).

They are up to four times smaller than the equivalent hot water tank because they are filled with our energy-dense phase change material, Plentigrade. This means that heat pump systems can be installed where otherwise they wouldn’t fit, for example.

Why use a Thermino thermal battery for hot water?


On demand


Save space


Use renewables


Cut CO2


Easy fit




No mandatory maintenance


10-year warranty

The Thermino range

Our fourth-generation heat batteries for hot water maximise the use of renewable energy and can be charged by air-source heat pumps, ground-source heat pumps, photovoltaics (PV), grid electricity and boilers.

Ideal for retrofitting to existing hot water systems as well as specifying for use in new build projects. Their sleek, super-compact design means they look good in any home and free-up valuable storage space.

Mixergy Smart Water Cylinders

Heat what you need

Mixergy are today’s market leaders in smart and connected hot water tanks. They help you , save money, reduce your impact on the environment and live better. Their award-winning tank gives you the hot water you need, when you need it, with their patented heating technology. Compared to conventional tanks, you can save up to 40% on your hot water bills and heat your water 10x faster.

The Mixergy app allows you to stay in control of your hot water and how it’s heated. It can connect to virtually any heat source, from gas boilers to solar and heatpumps. 

Art Renewables are the primary regional installer for Norfolk and proud to be part of the network of renewable heating and energy solutions experts all over the country.



Heat what you need

Mixergy tanks save energy and money by only heating the hot water that you need

Faster heating

Mixergy tanks deliver hot water up to 10x faster than conventional tanks

Smart control

Control your hot water 24/7 through the Mixergy app or using voice control


Hot water that's better for all


Mixergy are the market leaders in smart and connected hot water tanks. We help you live better, save money, and reduce your impact on the environment. 

Our award-winning tank gives you all the hot water you need, when you need it, with our patented top-down heating technology. Compared to conventional tanks, you can save up to 40% on your hot water bills and heat your water 10x faster!

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Heat what you need

Save up to 40% on hot water bills


Heat quicker

Mixergy tanks deliver hot water up to 10x faster than a conventional tank


Smart control

Control your Mixergy tank through your Alexa or Google smart home device or via the Mixergy app


Flexible heat source

Mixergy tanks work with gas or oil boilers, electric heating, solar PV, solar thermal or heat pumps


25-year warranty

When registered and connected, all tanks come with a 25-year warranty on faulty materials and manufacture as standard


Smart tariff ready

Integrate your tank with off-peak renewable energy tariffs to save energy and money


With the Mixergy app you are always in control of your tank 24/7! 

Be as hands-on as you like by monitoring your ‘state of charge’, setting schedules, boosting your hot water, tracking your consumption and much more… 

All our tanks also come equipped with a simple gauge that is attached to the controller on the tank, so you can easily manage it without having an internet connection. 


Constant control

The app and control gauge show how much hot water is available at any time 


Predictive charging

Machine learning uses predictive charging behaviour to heat just what you need 


Adjust energy source

Seamlessly adjust or swap energy source settings within the app to maintain your hot water needs


Usage and Insights

Track how much hot water you use throughout the day and compare with other tank owners 



Mixergy tanks come in a range of sizes and configurations so that they can be tailored to suit the individual needs of your home.

Available as both vented and unvented systems, they work with an extensive range of heat sources, from gas boilers to solar and heatpumps.

Proven to deliver up to 30% more usable hot water compared to a conventional tank, you can actually install a smaller tank with no loss of performance.

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