
How Our Electric Radiators Work
Electric radiators are changing the way we heat our homes, providing an attractive alternative to traditional heating.


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What are Premium Electric Radiators?
Our German radTherm Electric Radiators use state-of-the-art technology to maintain comfortable temperatures and reduce energy consumption without relying on fossil fuels like gas.
Whether upgrading from gas or already using electric heating, these radiators offer the perfect balance of style, performance, and energy savings.
The Science Behind the radTherm Electric Radiator
radTherm Electric Radiators use advanced technology to convert electricity into heat. Combining convection and radiation delivers efficient, even warmth that maximises energy use and overall heating performance.
Unlike basic models, radTherm radiators have unique technical features that make them the best electric radiators on the market:

Magmatic® Ceramic Core
Electricity quickly heats a high-density core in minutes. The core retains heat for hours, even after the radiator is switched off, typically needing just 3–5 hours of electricity on average for 24 hours of warmth, so your home stays cosy for longer.
Six Times the Surface Area
The ‘High Fin’ fluted surface is designed to distribute heat efficiently, spreading consistent warmth throughout the room and eliminating cold spots. This helps your space heat up faster while using less energy.
Easy-to-Use Smart Controls
Programmable thermostats and app-based controls, including voice integration with Alexa or Google Home, let you easily manage room-by-room heating. You can customise precise time and temperature settings to match your routine and preferences.
Power Modulation
This adjusts energy use dynamically, further reducing running costs. Once your radiator is up to temperature, it typically draws between 15-20 minutes of electricity per hour to top up the core and maintain a comfy home.
Experience the Perfect Balance of Style and Function
Talk to one of our friendly experts to discover how our wall-mounted small, standard and vertical electric radiators are designed to heat your home efficiently.
Comfort, Style, and Savings in One System
Switching to radTherm Electric Radiators brings multiple benefits:

Advanced Heat Retention
Magmatic® ceramic cores hold heat for hours, reducing energy consumption.

Room-by-Room Control
Heat only the spaces you need, saving energy and money.

Sleek, Compact Design
Our radiators are just 7cm deep and come in a range of sizes and colours.

Smart Home Integration
Control your heating from your phone or smart speaker.

Smart and Simple Heating Control
radTherm Electric Radiators make it simple to enjoy precise, energy-efficient heating with easy-to-use controls. The radTherm app lets you adjust room temperatures in 0.5-degree increments, set 24/7 schedules, and manage your heating remotely from your phone or tablet.
Features like child lock, open window detection, antifrost mode, and adaptive programming add peace of mind and convenience. Plus, compatibility with smart speakers like Alexa makes it even easier to keep your home warm and comfortable.
radTherm vs. Basic Electric Radiators and Gas Heating
radTherm Electric Radiators offer significant advantages for efficient heating. They provide precise temperature control, better heat retention and distribution, and reduce energy waste. Their ability to be easily programmed ensures heat is delivered only when and where needed, which can lead to lower energy bills and a more sustainable home environment.
Here’s a full comparison of home heating systems. You can also learn more in our guide to Electric vs. Gas Heating.
![]() | Basic Electric Radiators | Gas Heating Systems |
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Practicalities
Functionality | Heating only | Heating only | Heating & hot water |
Heating Element | Magmatic® ceramic core | Metal heating elements | Boiler / water-based |
Property Suitability | Any property, any space | Any property, any space | Requires gas mains access |
Space-Efficiency | Compact | Compact | Bulky |
Pipework | No noisy or leaky pipework | No noisy or leaky pipework | Extensive pipework (which can leak, freeze or burst) |
Installation | Quick and easy (no plumbing or mess) | Quick and easy (no plumbing or mess) | Complex (extensive plumbing & disruption) |
Safety | Low-surface temperature models available | Low-surface temperature settings available | Skin burns and carbon monixide risks |
Durability & Warranties
Costs
Heat Performance & Control
Efficiency & Sustainability
Most cheaper electric radiators on the modern market use simple aluminium or metal heating elements without heat-retention properties. This means they lose heat quickly once switched off, leading to uneven warmth and more frequent energy use. radTherm Electric Radiators are also perfect for replacing outdated electric storage heaters.
You may see other ceramic core electric radiators on the market, but it’s what’s inside that counts. Our unique Magmatic® core is a super-dense fireclay material which is the best quality available.
Gas and fuel wet systems rely on extensive pipework, boilers, and fossil fuels, making them less efficient and environmentally friendly than radTherm Electric Radiators. These systems often heat entire homes, wasting energy on unused spaces, and require regular maintenance, which increases long-term costs.

Flexible Hot Water Solutions that Work with Our Radiators
radTherm Electric Radiators integrate seamlessly with existing hot water cylinders, allowing you to retain your current system for minimum disruption.
Alternatively, the compact and efficient Sunamp thermal storage unit delivers instant hot water on demand for those switching entirely to electric, making it an ideal pairing with radTherm radiators.
Our team will recommend the best setup for your home, whether you keep your current system, upgrade to Sunamp, or choose other options.
People Often Ask
Common questions about electric radiators.