Made to order in Germany
Electric radiators & storage heaters
Three ranges, one patented heat-retention core. Compare sizes, outputs and controls, then let a local specialist recommend the right radiators for your home.
Innovation Meets Affordability
When you buy radTherm®, you're not buying from a national chain, and you're not gambling on an online shop. You're buying a purpose-engineered heating system, fitted by an independent local specialist who has to answer for it long after the van has gone, and backed by a manufacturer with the scale, experience and reputation to stand behind every radiator we make.
Only 7 cm deep
Made to order in Germany
30-year warranty
Room-by-room control
Choose your range
FLAGSHIP
Standard
- Classic fluted design, only 7 cm deep
- 0.5–2.8 kW in standard, tall and low heights
- Choose from over 900 colours
FLAT-FRONTED
Saxony
- Smooth, flat-fronted design
- Instant heat plus a patented smart, heat retentive core
- White or anthracite, only 7 cm deep
SMART STORAGE
Dynamo S
- Charges on cheaper or solar power
- Up to 3 hours of stored heat
- Works with smart home and solar systems
ALSO IN THE CATALOGUE
Panel heaters, towel rails & care-home heaters
Slimline panel heaters, bathroom heaters and low-surface-temperature models for care settings.
Compare the ranges
All three are made to order in Germany and store heat, so the room stays warm with less electricity. The differences are in the look, the size and how they charge.
| Feature | Standard | Saxony | Dynamo S |
|---|---|---|---|
| Front design | Classic fluted front | Smooth, flat front | Fluted front, two-row storage |
| Depth | 7 cm | 7 cm | 12 cm |
| Heights | 63 cm, 124 cm (tall) or 34 cm (low) | 63 cm, 124 cm (tall) or 34 cm (low) | 63 cm |
| Output range | 0.5–2.8 kW | 0.5–2.0 kW | 0.5–1.5 kW per heating row |
| Heat storage | Patented heat retention smart core, up to 45 minutes after switch-off | Direct heating element plus a patented smart, heat retentive core | Two rows of storage bricks, up to 3 hours without power |
| Finishes | Over 900 colours | White or anthracite | White or anthracite |
| Thermostats | DSM, DSD, D-Basic or RF | DSM or DSD | Smart Control thermostat with a built-in Shelly relay |
| Best for | The widest choice of sizes and outputs | Modern interiors that suit a clean, flat look | Dynamic tariffs and homes with solar panels |
| View Standard → | View Saxony → | View Dynamo S → |
Heat Retention Smart Core
Inside every radTherm® radiator, heat is stored in a patented core of heat-retention tablets and released gently into the room, so the radiator keeps warming long after the power switches off.
6× surface area
Individually spot-welded fins spread heat evenly, floor to ceiling.
~12–15 min per hour
Of electricity use on average; the storage core does the rest.
Up to 45 minutes
Of stored heat after the thermostat cuts the power.
Silent operation
Spot-welded fins mean no ticking as the radiator heats and cools.
1,100 °C-rated
Chrome-nickel steel elements cast directly into the core.
Overheat protection
Multiple thermocouples and insulated contacts in every unit.
The detail
Our unique combination radiators are designed to store heat directly in the heat-retention tablets, without any loss of energy.
The metal ribs on the radiator form a six times greater surface area than a normal radiator, creating both radiant and convected heat for a much more consistent temperature throughout the room, from floor to ceiling.
The ribs are individually spot-welded, which prevents any noise during the heating-up and cooling-down cycle. When the radiator reaches its required temperature, the thermostat cuts the power.
The radiator then continues to provide heat stored in the heat-retention tablets for up to 45 minutes, with no further use of electricity.
The radiators use approximately 12–15 minutes of electricity per hour, depending on the building fabric and outside temperature.
The heating conductors are made from high-quality chrome-nickel steel (resistant to scaling up to 1,100 °C) and are moulded into the patented smart heat retention core, reducing the risk of corrosion.
The contacts inside the radiators are protected with heat-shrinkable insulated sleeves for optimum safety, and multiple thermocouples in each radiator provide overheat protection.
radTherm® 30-Year Guarantee
German engineering, exceptional hand-made quality.
Built to last
radTherm® radiators have been manufactured for over 30 years, with patented technology that's reliable and economical.
30 years' peace of mind
Every radTherm® radiator comes with a free, comprehensive 30-year warranty.
5 years' free repair cover
Covers your entire system, including controls: more than double the industry standard.
We stand by our radiators
We want you to benefit from the very best in electric heating, and to know that in the unlikely event something does go wrong, you're covered.
Download the 2026/27 catalogue
80 pages with full specifications for every radiator, panel heater, towel rail and thermostat.
Why radTherm®?
Class-leading electric heating
A combination of natural convection and radiant heat from the fluted design gives gentle, even warmth, much like central heating.
Total reliability
Modern, robust technology with no maintenance or servicing. Every radiator is precision-engineered and made to order in Germany, with a genuine 30-year guarantee.
Economical
100% energy-efficient. The patented heat retention smart core stores heat so well that the radiator needs only a small trickle of electricity to maintain the temperature.
Total control
Every radiator has its own thermostat, so you choose the temperature and times for each room: simple buttons on the radiator, or smart control from your phone.
Modern and stylish
Slim designs only 7 cm deep, made to order in a range of sizes and finishes to suit your home.
Built for efficiency
Our ingenious fluted design multiplies each radiator's effective surface area by six, while the patented smart heat retention core distributes heat across the whole surface.
See radTherm® in your home
Your local specialist will survey your home, recommend the right radiators and fit them for you.