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17
December
2024
Updated
7
January
2025

Unlocking the Benefits of Sunamp Thermino: A Comprehensive Review

Images of the sunamp thermino x-plus range with the sunamp logo and then the dwellow logo in the top and bottom borders

Overview of Sunamp Thermino

The Sunamp Thermino X-Plus is an industry-leading heat storage solution designed for modern, energy-efficient homes. Its compact design, energy efficiency, and cutting-edge phase-change technology redefine how thermal energy is stored and used. In this article, we’ll explore how the Sunamp Thermino X-Plus works, its key advantages, and important considerations when choosing this advanced heat storage system.

How Does the Sunamp Thermino Work?

The Sunamp Thermino X-Plus uses advanced phase-change materials (PCM) to store and release heat. Unlike traditional hot water cylinders that store large amounts of heated water, the Sunamp heat pump integration uses a specialized material that changes between solid and liquid states, absorbing and releasing thermal energy as needed.

When the PCM is heated, it melts, storing significant amounts of energy in the process. As hot water is required, the material solidifies, releasing stored heat rapidly and efficiently. This ensures instant hot water availability while using far less physical space compared to traditional hot water tanks.

Heat Battery Technology Explained

Sunamp’s Thermino heat batteries are engineered using Plentigrade phase-change materials, enabling them to store thermal energy with exceptional efficiency. These materials operate at temperatures closely matching hot water needs by using the latent heat from melting and crystallization processes. This design maximizes energy storage density, making Thermino batteries an ideal solution for compact, high-efficiency thermal storage.

The integrated system works seamlessly with heat pumps, fitting neatly into small cupboards while maximizing energy efficiency. By capturing and storing heat generated during off-peak hours, the Thermino system delivers a continuous hot water supply even during high-demand periods. Its compact size, combined with high-performance vacuum insulation, minimizes heat loss, retaining over 95% of the stored energy.

Compatibility with heat pumps

An image of a Vaillant aroTherm Plus heat pump with a dwellow sticker on it

If you are thinking of getting a heat pump and need further information then have a read of our article on the merits of this technology. The Sunamp Thermino X-Plus can integrate with an air source heat pump (ASHP) seamlessly, making it a top choice for sustainable heating systems. Try our heat pump quote tool to get an idea of cost and size of unit.The heat pump extracts heat from the air, which is then stored efficiently in the Sunamp unit. It has the ability to store and release heat on demand, which maximises the efficiency of the heat pump and reduces the running costs, while ensuring consistent hot water all year round, even during colder months. The Sunamp does qualify for the boiler upgrade scheme grant, when fitted with a suitable heat pump system. If you qualify for a help from your energy supplier, under the Energy Company Obligation (ECO4) then the Sunamp might also be eligible, but it would be unlikely that the energy company would approve the premium product as part of the system - best to check.

Solar PV Integration

An image of all black solar panels on a residential roof with a clear blue sky in the background.

The Sunamp Thermino X-Plus also works exceptionally well with solar PV systems, enabling homeowners to store excess solar energy for later use. The PV integration can ensure that free renewable energy generated during the day can provide hot water at night or during cloudy weather, thus reducing the dependency on the grid and lowering your electricity bills. Have a look at our article on solar panels if you are still trying to decide what measures would best suit your home; you can also get a quick and easy online quote.  

Other Sunamp Models: Thermino E-Plus

An image of the sunamp thermino e-plus 70 with white background

In addition to the Thermino X-Plus, Sunamp also offers the Thermino E-Plus, designed for households with moderate hot water demands. While it features the same phase-change technology and space-saving design, the E-Plus heat pump integration is optimized for homes that require less storage capacity while maintaining high performance and energy efficiency.

Advantages Over Traditional Hot Water Cylinders

An image of the dimensions of the sunamp thermino x-plus in all the different sizes (150, 210, 300)
  • It has a space-saving design: The X-Plus is a compact unit, which makes it a great solution for homes that have limited space. It is also possible, using a third party cover (soon to be replicated by a Sunamp version of this protective case) to site the unit outside.
  • Energy Efficiency: Heat loss is reduced due to the advanced insulation, when compared with traditional cylinders.
  • Rapid Response: It can provides hot water on demand, which ensures maximum comfort when you need it.
  • Eco-Friendly Performance: Supports lower carbon emissions when paired with renewable heating systems like heat pumps and solar PV.
  • Long Lifespan: The X-Plus has a robust design, long with minimal moving parts, which helps with long-term durability. This is why the unit comes with a 10-year warranty.

What about the disadvantages:

  • Higher Initial Cost: The upfront costs will be higher than most standard water cylinders.
  • Installation Expertise: Professional installation is always recommended to ensure optimal performance and longevity.
  • System Integration: Best used when integrated with renewable heating systems such as heat pumps, solar thermal arrays, or solar PV systems.

Cost Efficiency

The Sunamp Thermino X-plus is very efficient because it leverages it's advanced thermal energy storage technology in order to optimise energy use and reduce energy bills. The system allows you to store hot water generated during off-peak hours, when energy prices are lower, and utilise it when demand is high, without incurring any additional costs. In minimising your reliance on traditional heating methods and providing a sustainable solution for heating and hot water needs, the Thermino X-plus significantly decreases energy bills over time.

Installation Insights

Installation Process and Requirements

The installation process for the Sunamp Thermino X-plus has several critical steps that should be followed in order to obtain a high level of performance and efficiency. First of all, it is essential to assess the installation site, which should have adequate space for the unit and have proximity to both hot and cold water connections. The Thermino X-plus requires a dedicated power supply, so a professional electrical installation may well be necessary. In addition, you should ensure that the existing heating systems are compatible with the Thermino X-plus (ask an expert), as it operates seamlessly with various heating sources but not all, so it's best to clarify. The unit needs to be mounted securely and connected to the plumbing system correctly. This is fairly intuitive, but the manufacturer's instructions should be followed closely. Proper installation not only maximises the unit's effectiveness, but also guarantees safety and longevity.

Common Challenges and Solutions

The installation process of the Sunamp Thermino X-plus can present several challenges, primarily due to installers being unfamiliar with the product. It is relatively new technology and so it is essential to use an installer who is familiar with the unit and how it works. The installer should conduct a thorough site assessment before the installation begins; to ensure that any necessary adjustments are made in advance. Sunamp do provide a comprehensive installation guide and they offer access to technical support in order to assist installers navigating the process for the first time. This minimises and potential setbacks and ensures optimal performance of the Thermino X-plus. It is quite a simple install, but it is just about familiarity for the installer on the first few installations.

Who Is It Best For?

The Sunamp Thermino X-Plus is perfect for homeowners seeking maximum energy efficiency while minimizing space usage. It’s especially suitable for:

  • Homes with limited storage space and no existing water cylinder in the home
  • Properties that are undergoing different renewable energy upgrades at the same time, ie. solar and a heat pump.

Customer reviews

Have a look at what other people are saying about Sunamp and Thermino X-Plus model here, to get real world testimonials.

Conclusion

The Sunamp Thermino X-Plus offers up a compact and energy efficient alternative to conventional hot water cylinders, where space in the home is at a premium. If you have no room for a traditional water cylinder, are wondering whether a cylinder can be installed outside, or are looking for an alternative to bulky hot water cylinders, the Sunamp Thermino X-Plus could be the perfect solution. Its compact design, high-efficiency thermal storage, and easy integration with heat pumps and solar PV systems make it an ideal option for space-limited homes or properties undergoing energy upgrades. That said, given its performance it should not just be considered an alternative where space saving is required, because it could well be a suitable alternative in most situations (where the budget allows it). Its innovative phase-change technology ensures top-tier performance, making it a smart investment for future-proof home heating systems. Consider this revolutionary solution to enhance your home’s energy efficiency and reduce your environmental impact. 

Looking for the best heat storage solution for your home? Contact our professionals at dwellow to learn more about the Sunamp Thermino X-Plus, Thermino E-Plus, and other advanced heating options.

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