Allowing to warm up the house, the inertia radiator helps to face the winter. More efficient and economical than a convector or a radiant panel, it has an aluminum or cast iron heating core that provides the necessary thermal comfort for a room. Dry or fluid inertia radiators, we have created this buying guide to help you choose.
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Our selection
"The Lodel RA10 is versatile. This electric inertia heater can be used as a main heating system or as a backup heater. Its storage surface…"
"This inertia heater is interesting for several reasons: it's beautiful, light, efficient and inexpensive. Plus, it's straight to the point, no frills, and easy to…"
"Offered with a 10-year warranty, the Fahro 852 excels in performance and safety. Despite its many incredible features, this electric inertia heater does not consume…"
"The Carrera 051692 is a visual success, in addition to being quiet, efficient and effective. With its great practicality, its low consumption and its 6…"
"The Cayenne 49705 radiator offered here is very interesting for heating large rooms. Its multiple functions guarantee a remarkable thermal comfort. In short, this model…"
The Lodel RA10 is versatile. This electric inertia heater can be used as a main heating system or as a backup heater. Its storage surface is sufficient to ensure a pleasant heat in the house.
178 £ on AmazonThe Lodel RA10 inertia heater has a slim and compact design. It is also a very light electric model mainly due to the use of many quality aluminum components. It is very fast and responsive to heat any room while saving a lot of energy with its low power technology. This model is ideal for heating rooms of 15 to 18 m².
The Lodel RA10 electric radiator has a configurable LCD digital chronothermostat, on which you can choose the operating mode: comfort, economy, anti-freeze and automatic. This model is also very easy to maintain and clean.
This inertia heater is interesting for several reasons: it's beautiful, light, efficient and inexpensive. Plus, it's straight to the point, no frills, and easy to use with its LCD screen and easy-to-configure settings.
55,92 £ on AmazonCayenne is a reference brand in terms of inertia heaters. The 49682 is its flagship entry-level model and is currently the best in this category. It has a horizontal format and a ceramic heating core. This model is also distinguished by its lacquered steel frame, which makes it relatively light.
To facilitate the use of its model 48682, Cayenne has equipped it with an electronic thermostat and a digital display. The temperature can be adjusted from 13 to 30°C. The Cayenne 49682 has a number of features, including Off, Frost protection, Comfort, Weekly programming, Consumption, Ecopilot, Ecocitoyen, Prolonged absence, Parental lock and Open window detection.
Offered with a 10-year warranty, the Fahro 852 excels in performance and safety. Despite its many incredible features, this electric inertia heater does not consume much energy.
382 £ on AmazonThe Farho 852 is a fluid inertia radiator with a die-cast aluminum frame with a white epoxy finish. This means it can withstand the effects of time and corrosion. It also features a high-end XANA PLUS transmitter that allows temperature control from any mobile device via Wi-Fi.
The Farho 852 is equipped with a programmable digital chronothermostat offering a great simplicity of use thanks to a sober and intuitive menu. This model also offers the possibility to set and program the temperature on 6 levels for each day of the week. Moreover, with the dual sensor technology, the temperature reading is accurate, ensuring optimal consumption. Finally, it should be noted that this high-end model is ideal for rooms of 20 to 25 m².
The Carrera 051692 is a visual success, in addition to being quiet, efficient and effective. With its great practicality, its low consumption and its 6 functions, this inertia heater is really worth the detour.
112 £ on AmazonThe Carrera 051692 is an inertia heater with a cast iron core that is the first choice in most online buying guides. It benefits from an excellent design with a horizontal and flat shape, but above all a frame composed of a mixture of steel and aluminum. The Carrera 051692 develops a heat output of 1,500 W. Of course, its quality/price ratio is unbeatable, but you will also benefit from its eco-friendly and silent side to save energy.
This device is able to heat efficiently and correctly any room in the house, both in a living room and in a bedroom. The first time you use it, the installation and configuration will take no more than 15 minutes. In terms of practicality, the flat and horizontal format allows you to fix it on a wall. The shell is made of steel and aluminum. The LCD screen displays the consumption data and settings. Note that the device has 6 functions: off, frost protection, comfort, comfort-1, comfort-2 and economy.
The Cayenne 49705 radiator offered here is very interesting for heating large rooms. Its multiple functions guarantee a remarkable thermal comfort. In short, this model is really well made!
140 £ on AmazonThis Cayenne inertia heater meets most heating needs. With a power of 2,000 W, it has a ceramic heating core and a steel frame that make it particularly solid. Its comprehensive functions are the factors for comfortable heating from 13 to 30°C in the living room or bedroom. The settings can be made by means of the non-changeable daily program and the customizable weekly program.
With this feature, your room is quickly enveloped in a pleasant and powerful heat. As for safety, there is no need to worry as Cayenne is a serious brand that has taken care to offer you a product designed in accordance with standards. Moreover, programming the device is simple, just read the instruction manual carefully. You will have no trouble manipulating it in "Program", "Manual" or "Pilot" mode.
Wrap your room in soft, long-lasting warmth by opting for this retractable inertia radiator. Programmable and able to cover up to 15 m2, it fulfills its role very well for a 100% safe use.
287 £ on AmazonThis radiator is really good quality. Fully programmable, it comes with an open window and presence detection system. For an intuitive use and an optimal visibility, it is equipped with a well designed control panel with a backlit LCD display. The performance is there thanks to the high power of the radiator, estimated at 1,500 w. Families with small children will also be happy to have it as the unit has a "Child Lock Safety" mode. Which is quite reassuring!
As for the aesthetics, Airelec has not done things by halves. It has made sure that users have in their possession a radiator that is both functional, elegant and robust. And for good reason, the exterior of the device is made of electro-galvanized steel with shock and scratch resistant polyester paint. Apart from that, you will surely be pleased to hear that the Coxy is relatively quiet and economical.
This dry inertia radiator is a real eye-catcher. With its elegant tempered glass front, it also promises a pleasant and comfortable user experience.
159 £ on AmazonThis fluid inertia radiator will be your best ally to enjoy an optimal thermal comfort at home all winter long. Thanks to it, you will be entitled to a soft heat diffused in a homogeneous way in all the rooms of your house.
164 £ on AmazonThis fluid inertia heater will fully satisfy you. The device is multifunctional, ultra-simple to operate and easy to install. And for good reason, it has 3 operating modes: comfort, economy and antifreeze. The programming by hour, day, week is very appreciable. This is thanks to the high-precision digital PID chrono-thermostat (+/- 0.2°C) with which the device is equipped. The presence of an electrical consumption indicator allowing a control of your consumption, is also a big plus in order to minimize your electricity bills.
For more convenience, the brand also delivers its product with 7 pre-recorded programs well thought out for each room in your home. However, this does not prevent you from programming your device yourself. Similarly, the radiator comes with an installation kit and accessories for a simple and hassle-free installation. Finally, its thermal limiter and the automatic lock function of its keypad give you a safe use. In short, for all that this model has to offer, we recommend it with your eyes closed!
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OUR SELECTION |
Lodel RA10
|
Cayenne 49682
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Farho 852
|
Carrera 051692
|
Cayenne 49705
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Airlec Coxy A694225
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VOLTMAN VOM540038
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Haverland RC4TT
|
The Lodel RA10 is versatile. This electric inertia heater can be used as a main heating system or as a backup heater. Its storage surface is sufficient to ensure a pleasant heat in the house.
|
This inertia heater is interesting for several reasons: it's beautiful, light, efficient and inexpensive. Plus, it's straight to the point, no frills, and easy to use with its LCD screen and easy-to-configure settings.
|
Offered with a 10-year warranty, the Fahro 852 excels in performance and safety. Despite its many incredible features, this electric inertia heater does not consume much energy.
|
The Carrera 051692 is a visual success, in addition to being quiet, efficient and effective. With its great practicality, its low consumption and its 6 functions, this inertia heater is really worth the detour.
|
The Cayenne 49705 radiator offered here is very interesting for heating large rooms. Its multiple functions guarantee a remarkable thermal comfort. In short, this model is really well made!
|
Wrap your room in soft, long-lasting warmth by opting for this retractable inertia radiator. Programmable and able to cover up to 15 m2, it fulfills its role very well for a 100% safe use.
|
This dry inertia radiator is a real eye-catcher. With its elegant tempered glass front, it also promises a pleasant and comfortable user experience.
|
This fluid inertia radiator will be your best ally to enjoy an optimal thermal comfort at home all winter long. Thanks to it, you will be entitled to a soft heat diffused in a homogeneous way in all the rooms of your house.
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Power
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1500 W
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1000 W
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1650 W
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1500 W
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2,000 W
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1,500 W
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2,000 W
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500 W
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Weight
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8 kg
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8kg
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31.3 kg
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18.76 kg
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14 kg
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18.8 kg
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13.2 kg
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9.84 kg
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Temperature settings
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Comfort / economy / antifreeze
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13 °C to 30 °C
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6 levels
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13°C to 30°C
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13°C to 30°C
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Comfort, Comfort -1°C, Comfort - 2°C, Eco, Frost protection, Heating off
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-
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-
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Material
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Aluminum
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Ceramic
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Aluminum
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Melting
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Ceramic
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Steel
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Tempered glass
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Metal
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Extra features
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Manual or automatic mode, 24h/ 7 days programming, user configurable, remote control included
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Off, Frost protection, Comfort, Weekly programming, Consumption, Ecopilot, Eco-citizen, Prolonged absence, Parental lock, Open window detection
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WIFI, By getting the Farho-Mi module, you can control it from anywhere
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off, frost-free, comfort, comfort-1, comfort-2, eco
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4 integrated Ecopilot programs (morning, evening, morning and evening, morning to evening) + Weekly programming (7 customizable programs)
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Window detection, presence detection, child lock security
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Digital and programmable screen, child protection and anti-overheating sensor for open window
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With power consumption indicator, high precision digital PID chrono-thermostat (+/- 0.2 °C), daily programmable, thermal limiter, automatic keyboard lock
|
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To enjoy an ideal temperature in winter, investing in the right electric inertia heater allows you to increase your level of comfort, while sparing your health and at the same time your electricity bill. Here are the parameters not to be neglected before buying such a device.
Depending on the occupancy of your rooms, you have the choice between a dry inertia radiator, ideal for optimal thermal comfort in living rooms, and a fluid inertia radiator that warms rooms at night during short periods.
Before
choosing the power of the appliance, a few elements must be taken into account: the size of the room to be heated, your habits and sensitivity to cold, the geographical location of your home, and its level of insulation
.
To help you find the right heating power for a room, count 100 W to heat a surface of 1 m² with a height of 2.5 m. If your house has a good insulation, or if it was built under the RT 2012 standard, 60 W/m² is enough to heat it.
For houses with a height of more than 2.5 m, the calculation of the necessary power is based on the volume of the room. Count 0.4 kW/m3 for a well insulated house; and 0.024kW/m3 for very well insulated houses. For the bathroom, a power between 100 W and 130 W/m² allows a good thermal comfort, and a smooth exit from the bath.
If
you have several inertia radiators, opt for centralized programming. This function allows you to easily set the temperatures of the different zones according to your needs. Get models with a pilot wire, radio transmitter, or even a line carrier current box to take advantage of this feature.
While
inertia heaters provide excellent thermal comfort, additional options can provide even more convenience in use
.
The control block is necessary if children are present.
To
adapt to your interior, and to any use, inertia heaters are available in several formats, and dimensions:
Some models have been designed with worked fronts (in glass, or natural stones) to bring a touch of design to different rooms.
Functioning primarily by radiation, the inertia radiator provides a quick and even spread of heat throughout the room to give you a feeling of optimal comfort throughout the day. As its name indicates, it has an excellent inertia. It accumulates energy that is released once the radiator is turned off. Its main asset is therefore a soft heat and a great thermal comfort.
The heat is well diffused thanks to a solid material, also called heating core, or a liquid material, also called heat transfer fluid. Indeed, an inertia heater heats the air by convection, then it accumulates the heat produced via an electric resistance and a heating core before radiating on the walls. This heating core ensures that the radiator's heat is retained.
.In the case of oil-bath or fluid inertia radiators, the heater's heating core is a heat transfer fluid for a "liquid" inertia. In general, the heat transfer fluid has a lower inertia than the "dry" inertia. Inertia radiators that use this principle are therefore likely44t less efficient.
Once turned on, the radiator first stores heat, then much of that heat is radiated back. This provides a true constant and even hot spot. The remainder is restored by convection. Very efficient, this system allows a natural cycle of the hot air. It rises, cools on contact with the ceiling, then falls back down to the bottom of the radiator to warm up again.
Besides great inertia and unparalleled thermal comfort, it can be said in this way that this device has many other advantages such as healthier air, easy operation and maintenance, and real energy savings.
The heating core of a dry inertia heater is always a refractory element. This is where the electrical resistances are located. This is why the performance changes on almost all models. In fact, various materials are used on this part: aluminum, cast iron, concrete, lava stone, brick, granite, soapstone. Some materials conduct heat in less time and retain it more. They have a strong inertia. These are more efficient than others.
The principle of the inertia radiator being to manage to diffuse heat even when switched off. It goes without saying that energy consumption is significantly reduced. The downside with these materials is that the device takes a long time to raise the temperature.
This inertia radiator uses heat transfer fluids to produce heat. This can be glycol, vegetable oil or mineral oil. With this variety of devices, the resistors are immersed in this liquid. They have thus an immersion heater character. The thermal comfort is guaranteed by a constant distribution of the heat.
Moreover, the temperature obtained and the temperature diffused do not change considerably. It is like using a central heating solution. Unlike the dry inertia radiator, the temperature rises more quickly. The disadvantage of this device is its high consumption.
The principle of dry inertia is based on the use of a solid heating body made of refractory material such as cast iron, ceramic, volcanic stone, etc. The electrical resistance is placed in the heart of this material to raise its temperature. The materials that make up the dry inertia radiator have a very high thermal inertia, so that they store heat when the radiator is switched on.
As a result, this method of heating is gentle and even. It offers better guarantees of durability and is suitable for the most frequented living areas. The temperature variations are slow, which undoubtedly improves the comfort of the inhabitants. Although more expensive at the time of purchase, dry inertia remains less costly in the long term.
The fluid inertia radiator works with glycol, a petroleum derivative, vegetable oil or mineral oil. This type of inertia radiator is similar to a central heating system and provides the same feeling.
The fluid inertia radiator heats more quickly and has a lower initial investment, but is also less resistant. This is why this model is recommended for use as an auxiliary heater in bedrooms and other less used rooms in your home, such as bathrooms.
In terms of thermal performance, the two models of inertia radiators finish in a tie. However, the choice between the two will depend on the area to be heated. To make your choice between dry or fluid inertia, take into account a few points of reference: heating a 15 m² room to 20 °C requires about 1,000 W of power in a sealed home, or twice that in the opposite situation. For larger areas, opt either for a higher output or for several low-consumption units.
Economy
An inertia heater, even in standby mode or turned off, continues to send constant and even heat into your home. As a result, you will have heat for longer without having to turn the radiator on again. This will save you a lot of money on your bill.
Easy to use and maintain
Unlike other types of heating that require extensive installation and even major work, the inertia radiator does not require any special connections or central heating system. You will therefore not need to call in a professional or turn your house into a building site for installation.
Moreover, you will not have to worry about the maintenance of your device since it is quite compact and completely autonomous. In addition, the heat transfer fluid circulates in a totally closed system so you don't have to drain your radiator regularly.
Healthy
A thermal radiator does not stir up dust in your home. It is a good solution to have clean air at all times. The winter period will be softer for you because the heat will prevent you from having icy feet. No more colds and allergies during the winter, your radiator will warm you up.
Comfort
The inertia radiator diffuses a pleasant heat in a regular way. This gives a feeling of thermal comfort and, at the same time, ease of breathing. Because the air remains moist while your heater is on, you will have both a haven for relaxation and a room to live in.
Intelligent
These high-tech units are often equipped with a thermostat, allowing you to adjust the temperature to suit your needs. The most sophisticated ones are even equipped with a movement or presence detector that allows you to adapt the heating according to the body temperature of the person.
In our opinion, the best brands of inertia heaters in 2022 are :
With 20 years of experience, Cayenne is a reference in the world of cooling and heating with its high-quality, reliable and high-performance appliances. The brand is a hit with consumers thanks to its inertia heaters that are easy to install, powerful, economical, and respectful of the ecosystem, with an unbeatable quality/price ratio.
Acova is a well-known brand in the marketing of heating equipment, including electric inertia radiators that combine both performance (up to 1,500 W at full power) and modern, attractive design. Users have especially been won over by the thermoactive fluid technology used by the brand in its radiators, which provide soft, even heat throughout the room.
Currently a reference in the radiator business, Airelec is a great brand that markets elegant and efficient electric radiators. Products signed Airelec with well-polished finishes that do not go unnoticed by many consumers around the world.
This is a major brand founded in 1931. It has made a name for itself thanks to its electric radiators that have an intelligent control function and are also easily programmable. The remarkable comfort and energy savings offered by Thermor are the two main parameters that motivate users to turn to this brand.
Honeywell is an American company with a wealth of industrial know-how in electric heaters since its creation in 1906. The company is especially appreciated for its appliances that scrupulously meet the needs and taste of each consumer.
The diagram below will help you to get an idea of the typical prices for each price range (entry-level, mid-range and high-end).
However, more expensive does not necessarily mean better.
We therefore advise you to always consult our ranking before deciding, rather than blindly relying on price ranges.
Use enough radiators.
In a space smaller than 12 m², one radiator is sufficient. But in a larger space, it is better to install several medium power radiators rather than one high power one.
How to maintain an electric inertia heater.
An
electric radiator does not need any specific maintenance. Regular dusting is sufficient to remove dust accumulation, and avoid unpleasant odors. Before starting, unplug the inertia heater and make sure it is dry before cleaning. Do not use abrasive materials or products to clean the heater, as they may damage or scratch the surface. A rag, feather duster, toothbrush, or compressed air is effective for accessing the gaps between the radiator panels. For persistent stains, let dishwashing liquid work on them, then gently wipe with a microfiber cloth.
Know when to open and close the shutters and curtains.
Detecting
the right time to open or close your curtains and shutters, helps keep the room at the ideal temperature, and limit your energy consumption. In winter, closing the curtains and shutters keeps the interior warm, and opening them during the day allows you to enjoy the light and heat of the sun. In summer, however, you keep the room cool by closing curtains and shutters.
Install the inertia heater away from furniture.
Of
course, you can place a wicker chair or small lamp table nearby, but placing a radiator behind any sofa, armoire or other large-volume piece of furniture will take away considerably from its heating potential. Install inertia radiators on the front wall if the house is poorly insulated, on interior partitions for a well-insulated house, under windows if there is no double glazing.
Keep it away from the curtains.
It
may be less obvious, but it is just as important. Radiators need to be able to breathe, so to speak. Having curtains over the radiators will waste their power, as the curtains may help to draw heat out of the room through the window. Depending on your radiator, curtains can also be a major fire hazard.
The best electric inertia heater depends on your needs and your budget. Read our buying guide to find out which products are the best at the moment.
To obtain the power of an electric radiator, simply multiply the surface area by 100 W if your house is poorly or moderately insulated. On the other hand, if it is very well insulated, multiply the surface area by 60 W and by 125 W on average for the bathroom.
Opting for an electric inertia radiator has many advantages over other types of radiators. The emission of radiation allows an excellent thermal heating gently, the device continues to heat even after its stop and the temperature emitted by this type of radiator is stable and homogeneous. Moreover, the inertia radiator has the particularity of not blowing the heat returned and of respecting health (without dust, nor particles). Finally, it is a radiator that consumes little energy.
This may be due to the pilot wire. Check to see if it matches the order in place. Use the instructions to help you. Also check that you have not reversed phase/neutral during the general installation.
The most effective way to refurbish your radiator and remove the yellowing over time is to remove it from the wall and repaint it in the same or a different colour. Before starting, turn off the radiator and wait for it to cool down. Place a dust sheet on the floor between the radiator and the wall. Then wipe the surface with a sponge dampened with warm water and detergent and wait for it to dry. Using a 5 cm wide brush, the operation should be done from the edges of the radiator towards the inside. Be sure to paint the mouldings and visible parts from top to bottom before moving on to the body of the radiator. After the mouldings, work the top and bottom edges with long sweeping motions. For an even finish, apply a second coat of paint.
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