Thermino™ heat batteries are the future of energy-efficient hot water storage. Designed for homeowners, property developers, and businesses looking to reduce energy bills and carbon emissions, these innovative heat batteries provide a reliable, space-saving alternative to traditional hot water tanks. Unlike conventional systems, Thermino harnesses advanced phase change materials (PCM) to store and release heat efficiently, ensuring instant, high-pressure hot water exactly when you need it.
The Value of Thermino™ Heat Batteries
Space-Saving Design
Up to four times smaller than traditional water tanks.
Energy-Efficient & Eco-Friendly
Uses less energy for faster hot water and cuts your carbon footprint.
No Mandatory Maintenance
No mandatory annual maintenance on the appliance.
Versatile Compatibility
Works with boilers, off-peak electricity, solar, and heat pumps.
Thermino’s Plentigrade™ PCM technology absorbs and releases thermal energy as it melts and solidifies, much like a reusable hand warmer. It stores four times more energy than water, maintains a steady 58°C (136°F) output, and is non-toxic, non-flammable, and built for 50+ years of use. With minimal heat loss, it maximizes efficiency and reduces energy waste.
Why Thermal Storage is the Future
Energy efficiency and sustainability are more important than ever. Traditional water heating systems are bulky, inefficient, and energy-draining, often wasting heat through standby losses. In contrast, Thermino’s advanced PCM technology optimizes energy use by:
Shifting demand off-peak to reduce electricity costs.
Maximizing heat pump performance, making heat pumps viable even in space-limited homes.
Integrating seamlessly with renewables like solar, reducing reliance on fossil fuels.
Enhancing grid stability by storing excess renewable energy for later use.
In the UK, 40% of homes with heat pumps will require thermal storage, according to National Grid ESO. A similar trend is expected in the U.S., where growing heat pump adoption will drive demand for high-density thermal storage solutions like phase change materials (PCMs) to enhance energy efficiency and grid reliability. Thermino provides the compact, high-density solution needed to future-proof homes and businesses.
Traditional Water Tanks vs. Thermino™
Traditional water tanks are bulky and inefficient, losing heat over time and requiring regular maintenance to prevent issues like sediment buildup and Legionella risk. In contrast, Thermino™ heat batteries are up to four times smaller, retain heat longer with minimal energy waste, and work seamlessly with solar, heat pumps, and boilers. They deliver instant hot water with high flow rates while requiring zero mandatory maintenance, making them a smarter, more reliable choice for modern homes and businesses.
Compatibility is another key advantage—Thermino™ works seamlessly with solar, heat pumps, boilers, and more, unlike traditional tanks that require specific setups. Maintenance is also a concern with older systems, which need regular servicing, whereas Thermino™ requires zero mandatory maintenance.
Additionally, traditional tanks store stagnant water, posing a legionella risk, while Thermino™ eliminates this risk by heating water instantly. And when it comes to performance, conventional systems often have slow heat-up times, while Thermino™ delivers instant, high-flow hot water on demand.
Space-saving – up to 4 x smaller than hot water tanks.
How It Compares
Thermino Heat Batteries outshine traditional hot water tanks and even modern storage heaters in efficiency, space-saving, and installation ease. Here’s how it stacks up:
- Up to 4× smaller than traditional hot water tanks — ideal for tight spaces.
- Heat Loss per Day: Only 0.48 kWh compared to 1.3 – 3.3 kWh for hot water tanks and 2.0 – 3.0 kWh for electric storage heaters.
- Installation Time: Typically installed in just a few hours, compared to 1–2 days for traditional systems.
- Energy Efficiency Rating: A+ for Thermino, while traditional options rank between C and D.
- Maintenance Requirements: Thermino requires no annual maintenance, while traditional tanks need yearly checks.
- Renewable Compatibility: Fully compatible with Solar PV, Heat Pumps, and Off-Peak Energy. Traditional systems have limited compatibility.
- Legionella Risk: None with Thermino, while traditional tanks require regular flushing to prevent build-up.
Switching to Thermino not only optimizes space but dramatically cuts energy loss and maintenance requirements. It’s the modern solution for efficient, reliable hot water storage.
The video explores Sunamp’s thermal batteries, which store energy using phase change materials. The technology is explained in detail, including its advantages over traditional water-based storage and its potential applications in various industries. The video also features a demonstration of the thermal battery’s operation and a discussion of its installation process.
Discover the Technology Behind Thermino™ Heat Batteries
Thermino™ heat batteries are revolutionizing hot water storage with cutting-edge Phase Change Material (PCM) technology. Discover how Sunamp’s award-winning innovation delivers instant hot water, saves space, and reduces energy consumption—all with zero maintenance. Watch the videos below to learn more about the science and benefits of Thermino™.
Plentigrade: The Phase Change Material Powering Sunamp Thermal Batteries
How to Install a Sunamp Thermino Heat Battery as a Direct Cylinder Replacement
Sunamp: World Leaders in Thermal Storage
Join the energy revolution with Thermino™ heat batteries. Whether you’re replacing an old water tank or optimizing your renewable energy setup, Thermino offers unmatched efficiency, reliability, and performance.