RadTherm® Electric Heating

A Revolution in Electric Heating, Born From Experience And Built For You

Peace of Mind

30-Year Manufacturer’s Warranty

Slimline

Only 7cm in Depth

Wifi Compatible

Fully Controllable Via the App

900 Colours Available

A Choice of Matt or Gloss Finish

RadTherm® Electric Heating Range

RadTherm® electric radiators enable you to tailor your heating system to your precise requirements, preferences and even decor.

Efficiency, value, controllability and reliability are bound to be at the top of your list when choosing your new heating. It’s the same with us and why we at Cotswold Heating Solutions only sell RadTherm® electric radiators. These radiators are considered 100% efficient! The patented heat retention core also provides partial storage to prolong your heating comfort and to reduce overall running costs.

RadTherm’s electric heaters are available in dozens of different shapes and sizes, with currently 900 different colours to choose from.  With the level of personalisation available to you, we can supply you with a heating system which is truly tailored to suit your needs, lifestyle, and even tastes.

The end result is an incredibly comprehensive, controllable and aesthetically pleasing heating system, which ultimately adds value to your finished project.

RadTherm Logo

Warmer Home,
Lower Heating Bills

RadTherm® electric radiators save you money in three ways: using less energy, helping you waste less, and, potentially, cutting your other electricity costs and as they need no servicing you will save there too!

RadTherm® Electric Heaters

Fully Sealed Heating Element

The hermetically sealed heating element transfers heat to the patented smart core without reducing the oxygen levels in the surrounding air.

Customised Control Technology

A large, backlit LCD screen enables full control via on-radiator programming. Alternatively use our App to control from anywhere in the world. Google Home and Amazon Alexa compatibility also comes as standard.

Super-efficient Patented Smart Core

Our patented smart core is highly heat retentive, on average requiring just 12-15 minutes of power to release heat for 45+ minutes.

Non-porous Smart Core

Water repellent, making it suitable for wet areas such as bathrooms.

Optimised Rib Design

A massive x6 surface area ensures optimised radiant heat with a 50/50 split between convected and radiant heat.

RadTherm Electric Heaters

Fully Sealed Heating Element

The airtight sealed heating element releases heat to the patented smart core without depleting the oxygen concentration of the ambient air.

Customised Control Technology

A large, backlit LCD screen enables full control via on-radiator programming. Alternatively use our App to control from anywhere in the world. Google Home and Amazon Alexa compatibility also comes as standard.

Super-efficient Patented Smart Core

Our patented smart core is highly heat retentive, on average requiring just 12-15 minutes of power to release heat for 45+ minutes.

Non-porous Smart Core

Water repellent, making it suitable for wet areas such as bathrooms.

Optimised Rib Design

A massive x6 surface area ensures optimised radiant heat with a 50/50 split between convected and radiant heat.

RadTherm Electric Heaters

Fully Sealed Heating Element

The airtight sealed heating element releases heat to the patented smart core without depleting the oxygen concentration of the ambient air.

Customised Control Technology

A large, backlit LCD screen enables full control via on-radiator programming. Alternatively use our App to control from anywhere in the world. Google Home and Amazon Alexa compatibility also comes as standard.

Super-efficient Patented Smart Core

Our patented smart core is highly heat retentive, on average requiring just 12-15 minutes of power to release heat for 45+ minutes.

Non-porous Smart Core

Water repellent, making it suitable for wet areas such as bathrooms.

Optimised Rib Design

A massive x6 surface area ensures optimised radiant heat with a 50/50 split between convected and radiant heat.

Built To Use Less Energy

To the best of our knowledge, RadTherm German electric radiators are 100% efficient. Their unique design and construction means you can warm an entire room and use very little electricity in the process.

RadTherm radiators are designed to store the heat directly into the patented energy storage smart core, without any loss of energy and once the optimal temperature has been reached, typically release heat for around 45 minutes without drawing any further energy. This means approximately just 12-15 minutes of electricity is drawn per hour in total. Depending on the programmed settings and the fabric of the building and external temperature, just 3-5 hours of electricity are needed on average for 24 hours of heat release*.

Traditional night storage heaters literally draw electricity for the full period of the Economy 7 tariff (7 hours). This results in a large amount of electricity being consumed at a constant rate.

Heat Your Room Evenly

When we turn on our heating we take it for granted and trust it is working in the most efficient and best way possible. The truth is that this isn’t always the case. Over the years customers have told us that they have previously experienced ‘cold spots’ with their traditional heating system – in particular cold feet! The reason for this is actually very simple! Warm air naturally rises and as such, sits above your head, leaving cold areas around your feet.

RadTherm radiators are different!

RadTherm radiators heat the whole room evenly due to their unique, high fin design which provides six times the surface area compared to other heaters. This means no cold spots and importantly, no costly hot spots at ceiling height. The design helps warm air to circulate the room with one enormous benefit in particular. Additionally the radiators utilise convection to ensure no more cold feet! Another advantage to this clever design is that you don’t need a larger heater to do the job required, instead being able to use a smaller heater, reducing bills whilst still ensuring the right amount of warmth for that particular room.

Independently Tested

RadTherm is so confident of the quality and performance of their electric radiators that they opened up their doors and allowed their products to be independently tested. Independent testing has taken place, with long term case studies showing the radiators to be 30% cheaper to run than oil and 10% cheaper than gas.

RadTherm standard electric radiator

Features & Benefits

As households are facing ever rising bills and energy prices hit record highs, it has never been more important to take control of your heating. Our German engineered radiators help you do just that, whilst offering over 900 colour choices and dozens of different styles and shapes.

German engineering, exceptional hand-made quality.
Built to last
RadTherm radiators are made in Germany and utilise the very best in German engineering.
30-Year piece of mind
All of our RadTherm radiators come with a 30-year manufacturer's warranty on the radiator body.
4-Years repair cover
As well as providing you with an industry leading 30-year manufacturer's warranty, we also give you 4-years repair cover for free. This covers your entire system including controls and is more than double the industry standard. We stand by our products and aren’t afraid to back them up with class leading guarantees. We want you to benefit from the very best in quality electric heating systems and know that in the unlikely event that something does go wrong – we’ve got you covered.
Ease of control reduces waste
There is no cheaper energy than the part that you don’t use – and because RadTherm radiators are so easy to control from anywhere, you’ll naturally waste less. Quite simply, you can adjust the heat in each room – wherever you are, thus avoiding running up bills in rooms that you don’t use as much. If you go out, switching off or turning down the heating is easy, and you can even ensure the house is nice and toasty for when you return.
Cheaper daytime electricity
You don’t need to charge RadTherm electric heaters overnight as you do with conventional night storage heaters, so there is no need for an expensive Economy 7 electricity tariff. There is a common misconception that Economy 7 is the cheapest tariff available and this is certainly not always the case. Although you benefit from a slightly cheaper rate at night, you are penalised with a much higher rate during the 17 hours of the day when not on Economy 7. Sometimes this uplift in daytime rates can be as much as 50%, therefore increasing the cost of everything such as ironing, watching TV or simply boiling the kettle!

German Electric Radiators

Which? Trusted TradersCotswold Heating Solutions Ltd4.9 / 5151 reviews on Which?98% of customers recommendUpdated September 16, 2026View all reviews on Which? (opens in a new tab)
Which? Trusted Traders

Helpful, prompt, reliable and friendly

When we decided to replace our old oil-fired boiler with something more modern, there were a lot of choices. CHS helped us find the solution that worked best for us, got the job done quickly (but within the timeframe that suited us), was on site...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Oxfordshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Flexible and not pushy

Very pleased with the work Cotswold Heating Solutions did installing a new Sunamp Thermino 150 ePlus into our new home. The team worked well, thanks.

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Somerset

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Excellent experience

I’m happy to recommend Cotswold Heating Solutions based on our recent experience. From the initial discussion surrounding our specific requirements to the quality, timeliness, tidiness and customer friendly approach of our fitters the experience has been excellent. Well done to all concerned.

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in West Northamptonshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Extremely efficient from start to finish

Cotswold Heating recently fitted me a complete new heating system From quotation to fitting, I only experienced a complete and professional company. The removal of the old system and fitting of the new 6 radiators and a towel rail were completed very efficiently and with...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Worcestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Great work, and on-time

After reviewing options a few months ago for solar power hot water, I contacted Cotswold Heating Solutions and yesterday the install took place. The guys arrived on time, friendly and professional. The work was done within four hours with minor stops to mains water and...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in South Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Excellent seamless installation

Through the whole process from start to finish it have found Cotswold a highly professional company I had 3 old storage heaters replaced and the installation was done with professionalism I would not hesitate to recommend Cotswold Heating

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Swindon

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Great Company

We first used Cotswold Heating Solutions in 2020 and were very happy with the service then. We have used them again to provide a heating solution for an extension to a holiday cottage in Wales. The initial advice was excellent- informative, helpful and with no...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Hassle free installation of 7 heaters

Moving in to a new house with a variety of electric heaters of different ages and types, I went to Cotswold to help me rationalise and modernise. The first survey visit was very informative and we worked out the combination and style of heaters I...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Wiltshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Excellent and efficient work.

This is a family business with all the staff committed to excellent service. Work was done on time by a friendly and experienced workforce who were obliging and eager to do their best. We cannot praise this compny more highly than to say "use them...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Oxfordshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Service call.

I’ve been a customer of CHS for a couple of years, having 8 radTherm radiators and a Sunamp heat battery. A 3rd party electrician recently caused the Sunamp to fail, so I contacted Sarah at CHS for help. At the same time I flagged up...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Worcestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Transformation of home heating system

This company has been a pleasure to work with at every stage of the process. The initial survey was both informative and helpful in identifying some preliminary electrical work to be done to make for a smooth installation. Once the decision to proceed was taken...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Great Service From First Contact To Final Installation

We have recently had an additional radtherm radiator installed and like initial installation a few years ago , involving replacement of gas heating system with 7 electric radiators. From first contact to final installation the overall service was excellent. Would have no hesitation in recommending...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in North Somerset

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Cotswold Heating Installations

Cotswold Heating have shown to be a very competent service business, being very conscious of ensuring customer care and attention to their needs - day one their company manager visits the property and spends quality time with its customers in assessing and advising on how...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in West Midlands

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Easy process from start to finish

Very good company to deal with. I was kept informed all the way and any questions answered straight away. They even provided the extra part for the shower at no expense to me. On the day of installation the men turned up on time and...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Oxfordshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Brilliant work

I am very pleased with this company from start to finish very professional friendly the installers were brilliant explained everything I needed to know

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Oxfordshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Great work and Great staff

On the day the installers turned up in the timeframe that was set. Great installers and very polite and did the work well. Looked after my property at the same time. The customer services are great and very polite and helpful. Would definitely recommend them.

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Efficient and professional

The installation team worked very efficiently the old system of boiler, radiators and water heater were removed quickly and carefully with the minimum of fuss. The new system installed very efficiently as well. They were very tidy and a friendly team. The Sunamp water system...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Cotswold Heating Solutions

The heating is controllable, efficient and easy to use. I was very impressed, it took less than three hours to remove and install the new radiators. I was pleased with the service from start to finish and the app is so easy to use. Four...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Oxfordshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Excellent all round service from inquiry to installation

A very good experience working with Cotswold Heating Solutions on a unique problem to find a heating solution for our church. The team were very professional all the way through the process from inquiry to site visit and full installation. Very good service and keeping...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

radTherm Smart Core Radiators

Having been cold for much of the winter because of the high cost and ineffectiveness of the convector panel heaters in my flat, it is a huge relief to now have a proper heating system. Cotswold Heating Solutions (CHS) has been a pleasure to deal...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in North Somerset

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

New storage heaters.

Was a joy dealing with a well run, friendly local firm. All work and communication was great. Would strongly recommend.

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Greater London

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Excellent Service

Three ancient storage heaters were quickly dispatched and I now have new radtherm radiators. What a transformation: the heating is controllable and efficient. I was amazed that it only took the cheery technicians 3 hours to install the radiators. I am very pleased with the...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Warwickshire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Total replacement of night storage heaters

Seven ancient and inefficient night storage heaters have bitten the dust, replaced by 7 Radtherm heaters. From a helpful website, to a very timely response to our first enquiry, to a prompt and very informative survey and a speedy quotation, and then on to installation...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Bath and North East Somerset

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Excellent product and customer service

Cotswold Heating have provided excellent customer service from first contact to courtesy call. We replaced the immersion heater and tank. Cotswold heating kept in contact throughout. The work was undertaken very efficiently and the team got the storage heater unit up into the flat very...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in South Gloucestershire

Read reviews on Which? (opens in a new tab)

Which? Trusted Traders

Good Heaters, very good fitting job.

Two new heaters fitted, one to replace a gas fire in the main room, the other smaller one to replace the old convecter in the bedroom. The old convecter taken out by the fitter and the new heater fitted in its place, all went well...

Recommended

Customer Service
5/5
Quality
5/5
Value
5/5

Customer in Oxfordshire

Read reviews on Which? (opens in a new tab)