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 are a residential thermal energy storage solution that replaces 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

Reliable

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.
