
Reliable Hot Water Made Simple
Switching to a Sunamp heat battery means energy-efficient, instant hot water without the hassle of traditional systems.


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Why the Sunamp is Different
Sunamp heat batteries offer a modern solution to water heating. By storing energy efficiently and delivering instant hot water, they eliminate the need for large, traditional hot water cylinders. Perfect for homes looking to maximise space, save energy, and reduce running costs. They can work with grid electricity and solar PV and use various energy tariffs to provide further savings.
The Sunamp could be an ideal solution for homes with the following issues:

Limited Space
Ultra-compact with no tank, the Sunamp is up to 4x smaller than a traditional hot water cylinder, making it ideal for homes where a tank simply won't fit.

No Mains Gas
Great for properties relying on electric-only heating or renewable energy sources like solar PV.

Low Water Pressure
The Sunamp provides hot water at reliable mains pressure.
The Sunamp Can Save You Money
Even for homes without other hot water supply challenges, the Sunamp is designed with efficiency in mind and can save you money in lots of ways:
Energy Efficiency

Off-Peak Charging

Minimal Heat Loss

Durability

A Cleaner, Greener Choice
Sunamp Heat Batteries use electricity to store energy as heat, avoiding the emissions associated with gas or oil boilers. The Sunamp can further reduce your reliance on the grid and your home’s carbon footprint when paired with renewable energy sources like solar panels. They’re also non-toxic and 100% recyclable.
By switching to Sunamp, you’re choosing an environmentally friendly solution that supports a sustainable future while delivering reliable hot water.
Make the Move to Electric Water Heating
Contact us today to learn how Sunamp Heat Batteries can transform your home.
Sunamp or Traditional Water Heating Systems?
The Sunamp Heat Battery is a great alternative to traditional hot water cylinders and electric boilers. Its compact design saves valuable space, and the advanced technology keeps heat loss to a minimum, helping you enjoy consistent performance and lower energy bills – especially when charged during off-peak hours.
Installation is quick (usually done in a day) and simple, with little disruption to your home, and unlike traditional systems, Sunamp doesn’t need regular servicing. It’s an efficient, low-maintenance, and budget-friendly way to get reliable hot water whenever you need it.
Sunamp Heat Battery | Hot Water Cylinder | Electric Boiler |
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Sunamp or Traditional Water Heating Systems?
Energy Source | Electricity and solar | Gas | Electricity and solar |
Size | Compact - no tank (up to 4x smaller than traditional cylinders) | Bulky and space-consuming (requires a tank) | Requires floor space for higher output models (requires a tank) |
Installation | Simple retrofit to most homes | Requires large space | Complex plumbing needed |
Efficiency | Minimal heat loss, high output | Higher heat loss over time | Uses electricity on demand |
Running Costs | Lower(used with off-peak tariffs and solar) | Moderate | Higher |
Maintenance | Maintenance-free | Needs regular checks | May require servicing |
Durability | 50+ years | 8-12 years | 15-25 years |

Get Plentiful Mains Pressure, Fresh Hot Water On Demand
Enjoy clean, fresh water at mains pressure without the hassle of dribbling showers or slow-filling baths. Unlike traditional cylinder systems, the Sunamp delivers water free of nasties, providing a healthier hot water solution for your home. With a range of sizes from 70L to 300L, there’s a model to suit any property, from small flats to large family homes.
You can relax knowing:
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There are no noisy fans or pumps to disturb your peaceful bath
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Thermostatic mixing valves will prevent scalding and maintain safe water temperatures for all users.
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Ample hot water will be available at excellent pressure, even during peak times.
FAQs
Common questions about the Sunamp Heat Battery.