How Our Electric Radiators Work

Electric radiators are transforming home heating by offering a stylish and efficient alternative to conventional systems.

Premium Electric Radiators

Our German-made radTherm™ Electric Radiators employ cutting-edge technology to keep your home comfortably warm while lowering energy use - all without the need for fossil fuels such as gas.

Whether you're switching from gas or already using electric heating,
these radiators strike an ideal balance between style, performance,
and energy efficiency.

The Science Behind the
radTherm™
Electric Radiator

radTherm™ Electric Radiators use advanced tech to convert electricity into heat, combining convection and radiation for efficient, even warmth and top energy performance.

Unlike standard models, radTherm™ offers unique features that set them apart as the best on the market.

Magmatic®
Ceramic Core

Electricity rapidly heats a high-density core in minutes. The core stores heat for hours, even after switch-off, typically needing just 3–5 hours of electricity a day to keep your home warm for 24 hours.

Six Times the Surface Area

The ‘High Fin’ fluted design spreads heat evenly, warming the room faster and reducing cold spots – all while using
less energy.

Easy-to-Use Smart Controls

Programmable thermostats and app controls, with Alexa and Google Home integration, let you manage heating room by room, setting exact times and temperatures to suit your routine.

Power Modulation

Energy use adjusts automatically to cut running costs. Once warm, the radiator usually needs just 15–20 minutes of electricity per hour to maintain a
cosy home.

Experience The Best Radiator On The Market

Chat with one of our friendly experts to see how our wall-mounted electric radiators – in small, standard, and vertical designs – efficiently heat your home.

Comfort, Style, and Savings in One System

Switching to radTherm™ Electric Radiators brings multiple benefits:

  • Advanced Heat Retention

    Magmatic® ceramic cores retain heat for hours, helping lower energy use.

  • Room-by-Room Control

    Warm just the rooms you use, cutting energy and costs.

  • Sleek, Compact Design

    Our radiators are just 7cm deep and come in various sizes and colours.

  • Smart Home Integration

    Control your heating from your phone or speaker.

Heating Control that’s simple

radTherm™ Electric Radiators offer precise, energy-efficient heating with simple controls. The app lets you adjust temperatures in 0.5°C steps, set schedules, and control heating remotely.

Features like child lock, open window detection, antifrost mode, and adaptive programming add convenience and peace of mind. Plus, Alexa and other smart speaker compatibility makes heating your home effortless.

radTherm™ vs. Standard Electric Radiators and Gas Heating

radTherm™ Electric Radiators deliver efficient heating with precise control, improved heat retention, and even distribution. Programmable settings ensure heat is used only when and where needed, helping lower energy bills and create a more sustainable home.

Here’s a full comparison of home heating systems.

Practicalities

Basic Electric Radiators

Gas Heating Systems

Durability & Warranties

Basic Electric Radiators

Gas Heating Systems

Costs

Basic Electric Radiators

Gas Heating Systems

Heat Performance & Control

Basic Electric Radiators

Gas Heating Systems

Efficiency & Sustainability

Basic Electric Radiators

Gas Heating Systems


Many cheaper electric radiators use basic metal elements that lose heat quickly, causing uneven warmth and higher energy use. radTherm radiators are an ideal upgrade from old storage heaters.


You might find other ceramic core electric radiators out there, but it’s what’s inside that matters — our exclusive Magmatic® core is a premium, ultra-dense fireclay of the highest quality.


Gas and wet fuel systems rely on boilers, pipework, and fossil fuels, making them less efficient and eco-friendly than radTherm™ Electric Radiators. They often heat unused spaces and require maintenance, increasing long-term costs.

Hot water solutions that are compatible with our radiators

radTherm™ Radiators work with existing hot water cylinders for minimal disruption. Or, switch fully to electric with the compact Sunamp unit, which provides instant hot water. Our team will help you choose the best setup for your home.

People Often Ask

Should I replace gas central heating with electric?

Switching from gas central heating to electric radiators offers several benefits, especially for those seeking a more energy-efficient and eco-friendly solution. Electric wall radiators like radTherm provide room-by-room control, reducing energy waste compared to heating the whole house with gas.

They’re also fossil fuel-free, supporting the UK’s shift towards net-zero emissions. Installation is simpler too, with no need for pipework, flues, or boiler upkeep. Ideal for modern homes, retrofits, or second properties, electric radiators offer a sleek, efficient, and dependable alternative — with fast heat-up times, programmable controls, and long-term savings on running costs.

Do electric radiators use a lot of electricity?

Premium radTherm™ Electric Radiators are designed for outstanding energy efficiency, converting nearly all the electricity they use into heat. Their advanced ceramic core technology reduces energy waste and delivers even warmth throughout the room.

Compared to traditional electric heaters, radTherm models use less electricity to maintain comfort. Although electricity costs more per kWh than gas, radTherm radiators offset this with programmable thermostats, room-by-room control, and adaptive schedules — helping you heat only the spaces you need, when you need them.

How much does it cost to run electric radiators?

Electric heating costs vary with insulation, energy tariffs, and usage. Premium electric radiators are very efficient, needing less energy to maintain warmth than older or basic models. Though electricity costs more per unit than gas, efficiency and room-by-room control can help offset that. Running an energy-efficient radiator in a standard room typically costs 3p–8p per hour, depending on wattage and rates. Features like open-window detection and adaptive thermostats help minimise waste and keep bills manageable.

How long do electric radiators take to heat up?

radTherm™ Electric Radiators heat up instantly using advanced ceramic core technology, which stores and radiates heat efficiently - even after they're off. Unlike gas systems that take time to warm up, electric radiators deliver immediate heat. Wall-mounted models offer fast, even heating, making them perfect for quickly warming any room.

What is the lifespan of an electric radiator?

The lifespan of an electric radiator depends on its quality. Basic models often last 5–10 years, while radTherm™ electric radiators are built to last decades and come with a 30-year warranty. Their durable ceramic cores and corrosion-resistant materials ensure long-term reliability, making them a cost-effective alternative to frequently replacing cheaper heaters.

Do electric radiators heat a room?

Yes, radTherm™ Electric Radiators effectively heat rooms of all sizes by combining convection and radiant heat for even warmth without cold spots. Whether wall-mounted or vertical, they offer tailored heating to suit any space. With advanced features like programmable thermostats and precise temperature control, they provide a comfortable, energy-efficient solution for any home.

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