Why Choose a Sunamp Heat Battery?

Hot water is essential in every home, yet the way it is stored and delivered has changed very little for decades. Most properties still rely on large hot water cylinders that store heated water and gradually lose energy over time.

Sunamp heat batteries offer a modern alternative. Instead of storing hot water, they store heat energy in a highly efficient material and use a stored energy to heat water instantly when it is needed.

This approach allows Sunamp systems to deliver reliable mains pressure hot water while using significantly less space than a traditional cylinder.

What is a Sunamp heat battery

A Sunamp heat battery is a compact thermal energy storage system designed to provide domestic hot water for homes.

Unlike conventional cylinders that hold large volumes of heated water, a Sunamp unit stores thermal energy inside a specially developed phase change material. This material absorbs and releases large amounts of heat during a controlled melting and solidifying process.

The stored heat is then used to heat fresh mains water when hot water is required in the home.

As the system stores heat rather than water, it can deliver the same function as a hot water cylinder in a much smaller unit.

How Sunamp technology works

Sunamp heat batteries store energy using a combination of an electrical heating element, a sealed phase change material, and a high performance heat exchanger.

When the system charges, an internal electrical element heats the phase change material. As the material reaches its transition temperature it melts and stores the thermal energy within the unit. This stored heat remains available until it is needed.

When a tap or shower is opened, cold mains water flows through a heat exchanger inside the Sunamp unit. Heat stored in the phase change material transfers through the exchanger and heats the water instantly as it passes through the system.

Compact design that saves space

One of the most noticeable advantages of Sunamp technology is its size.

Traditional hot water cylinders can be large and often require an airing cupboard or dedicated plant space within the home. This can limit design options, particularly in smaller properties.

Sunamp heat batteries are much more compact – up to four times smaller than the equivalent cylinder. This compact design makes Sunamp particularly useful for apartments, modern homes and renovations where installing a large cylinder is not practical.

Mains pressure hot water

Sunamp systems are designed to deliver hot water at mains pressure.

Cold mains water flows directly through the internal heat exchanger where it is heated instantly using the stored thermal energy in the system. Because of this design, the hot water supply is not dependent on a stored tank of water.

This means taps, showers and baths receive consistent pressure directly from the mains supply.

Highly efficient heat storage

Phase change materials can store large amounts of thermal energy within a relatively small volume. As the material melts and solidifies during charging and discharging cycles, it absorbs and releases significant amounts of heat without requiring a large storage tank.

This allows Sunamp systems to store thermal energy far more densely than a traditional cylinder. The result is a compact system capable of delivering reliable hot water while using much less physical space.

Works with renewable energy

Sunamp heat batteries are designed to work seamlessly with renewable energy. As they charge using electricity, they can operate in fully electric homes without the need for fossil fuels. They are also compatible solar PV systems and heat pumps, allowing homeowners to store energy efficiently for hot water use.

Designed for long term reliability

Sunamp heat batteries are designed to operate through many thousands of charge and discharge cycles. The phase change material inside the system repeatedly melts and solidifies during normal operation, storing and releasing energy as needed.

This process allows the system to provide reliable hot water for many years with minimal maintenance requirements. As the system does not store large volumes of standing water, it also avoids some of the issues associated with traditional cylinders.