Radiators

Choosing the right radiator is essential for keeping your home comfortable without sending your electricity bill soaring. At Bestherm, our electric radiators combine thermal performance, innovative technology and contemporary design to meet every need. Dry inertia, connected heating or a dual heating core: each solution is designed to deliver lasting comfort while keeping energy consumption under control.

 

Which electric radiator should you choose for your home?

The right radiator isn't necessarily the most powerful: above all, it should suit your home and lifestyle. Room size, insulation, how often the room is occupied and your budget are all factors to consider before making your choice.

At Bestherm, every radiator is designed to provide pleasant warmth, maintain a stable temperature and make everyday heating easier. Quality materials and precise controls improve comfort while keeping energy costs down.

Dry inertia radiator: gentle, even comfort (ceramic & cast iron)

A dry inertia radiator stores heat in a refractory material before releasing it gradually. This keeps the temperature stable, limits temperature fluctuations and improves comfort while reducing electricity consumption.

There are two main technologies:

• Cast iron electric radiators offer exceptional thermal inertia thanks to their ability to store heat and then release it gradually.
• Ceramic dry inertia radiators heat up faster while retaining the benefits of gentle, even warmth.

Other technologies, such as heat transfer fluid, natural convection and infrared radiation, also meet specific needs, but dry inertia remains the benchmark for combining comfort with energy savings.

Smart connected radiator: take control of your energy use

The connected electric radiator lets you control your heating from your smartphone, wherever you are. In just a few seconds, you can change the programming, adjust the temperature in each room or switch off a device you left on. This gives you control over your energy consumption, even when you're away.

Equipped with a programmable thermostat, the smart electric radiator automatically adapts heating periods to your lifestyle. You only heat when needed, naturally reducing electricity consumption. According to ADEME*, appropriate programming can save up to 30% on energy.

 

Dual-core and heating-film models: fast heat-up and lasting warmth

Dual-core radiators combine a highly responsive heating film with a thermal inertia core to heat up quickly without compromising lasting comfort.

In a living room or large open-plan space, this technology delivers almost instant warmth while maintaining a stable temperature for several hours. You feel comfortable quickly without the heating switching on and off repeatedly.

 

How do you choose the right wattage for your radiator?

To estimate the right wattage, the most widely used rule is to allow around 100 W per m² in a properly insulated home. This estimate is an excellent starting point before making adjustments based on the room's exposure or level of insulation.

Insulation performance, the room's exposure and large windows may require an adjustment to this wattage. 

To sustainably reduce your energy consumption, economical electric radiators combine thermal inertia, efficient electronic controls and smart programming to optimize every heating period.

Room area	Ceiling height	Recommended Wattage	Recommended use
Under 10 m²	2,50 m	500 to 750 W	Office, small bedroom
10 to 15 m²	2,50 m	1000 to 1500 W	Bedroom, kitchen, spacious office
15 to 20 m²	2,50 m	1500 to 2000 W	Lounge, living room, main living area
Over 20 m²	2,50 m	2000 W or 2 × 1000 W	Large living room, open-plan room

 

Key features of Bestherm radiators

Several features help improve comfort while keeping energy costs down. Bestherm radiators incorporate technologies designed to provide heating that is smarter, more economical, and easier to use.

They are compatible with central control via pilot wire, feature weekly programming and a programmable thermostat, offer high-performance electronic control, and have an IP24 protection rating, suitable for different rooms in the home.

All Bestherm radiators comply with European requirements and bear the CE marking**. Some models are also certified NF Électricité***, a guarantee of quality, safety, and energy performance.

Open-window and presence detectors

When you air out the room, the radiator with open-window detection automatically detects a sudden drop in temperature and reduces its output to prevent unnecessary energy use. It then reduces its output to avoid heating the room unnecessarily while the windows are open.

Models equipped with built-in presence detection automatically adjust their operation based on room occupancy, improving comfort while limiting unnecessary energy use.

Replaceable thermostat and easy maintenance

Designed to serve your home for the long term, this technology features a durable, adaptable design. Replaceable thermostats let you replace only the control system when needed, without having to replace the entire radiator.

This design makes maintenance easier, reduces maintenance costs, and extends the lifespan of your equipment.

 

FAQ: Everything you need to know about electric radiators 

Which electric radiator is the most energy-efficient?

A dry-inertia cast-iron or ceramic radiator fitted with a smart thermostat is now the most economical solution. It continues to provide gentle heat after the heating element switches off, limiting heating cycles and reducing electricity consumption.

• Gradual heat distribution.
• High-precision programmable thermostat.
• Weekly programming.
• Save up to 30% on energy, depending on usage.

What is the difference between a cast-iron radiator and a ceramic radiator?

Cast iron has greater thermal inertia and retains heat for a very long time. Ceramic heats up more quickly while providing excellent comfort for everyday use.

• Cast iron: ideal for large spaces.
• Ceramic: responds more quickly when switched on.
• Both provide even, pleasant warmth.

How much radiator power do you need per m²?

For a properly insulated home, allow around 100 W per m² (or 40 W per m³). A 15 m² room will generally need a 1500 W radiator.

• Allow for more power if the insulation is old.
• Adjust the power according to the room's exposure.
• Take ceiling height into account.

Why choose a connected electric radiator?

A connected radiator lets you control the temperature remotely, schedule heating periods and track electricity consumption. This smart management can save up to 30% on energy while improving comfort.

• Control from your smartphone.
• Custom programming.
• Track energy consumption in kWh - depending on the model.
• Temperature tailored to each room.

 

To equip your bathroom too, Bestherm electric towel radiators offer the same level of quality, thermal performance and comfort as the entire radiator range. If you want to enjoy an even faster heat-up, a fan-forced electric towel radiator is an ideal solution for heating the room while keeping your towels at the right temperature.

 

* https://agirpourlatransition.ademe.fr/particuliers/economiser/energie/20-solutions-reduire-consommation-electricite

** https://single-market-economy.ec.europa.eu/single-market/goods/ce-marking_en?prefLang=fr

*** https://www.lcie.fr/nos-services/global-market-access-support/marque-nf-2/