Radiators are REALLY

badly named

They should be called Convectionators...

Most of the heat leaving your radiator is convected out of the top, and so gets trapped at the ceiling or is lost through your window leaving you feeling cold.

Radfan's unique designs increase the warm air flow and puts the warmth where you want it most. Making you warmer for less.

Before the radfan is installed the heat is trapped at the ceiling

Proven Energy Savings


Funded by the UK Government's Department of Energy and Climate Change, the Radfan has been extensively trialed and tested in labs and real world homes to make sure that the Radfan helps you feel warmer and reduce your energy bill.

Total Expected Energy Savings

2595 kWh
reduction in heating energy use
saved per year

Total savings for the Radfan of around £106 per year come from people feeling warmer and using their heating less, combined with the thermostat turning off sooner as demonstrated by the testing at Salford University.

View all of our energy saving testing here >

The Radfan Classic Family

Radfans that live on top of your radiator redirecting heat into your room - perfect for most radiators.

Classic Small


RRP: £39.99
You save £8.00 (20%)
  • More info >

Classic Medium


RRP: £69.99
You save £14.00 (20%)
  • More info >

Classic Large


RRP: £109.99
You save £22.00 (20%)
  • More info >

Want even more power?

Check out our Classic +PLUS range with 50% more OOMPH!

More Power

The Radfan Slim Family

Radfan Slim fits to the bottom of your radiators to accelerate the warm air flow up and around your room. Use with radiators where the Radfan Classic won't fit.

Slim Small


RRP: £39.99
You save £8.00 (20%)
  • Perfect for: Smaller obstructed radiators, home office
  • 47cm / 18.5in long
  • 2 integrated fans
  • £2/year running cost
  • 1 W power
  • ★★★★★
    Customer reviews

Slim Medium


RRP: £69.99
You save £14.00 (20%)

Slim Large


RRP: £109.99
You save £22.00 (20%)
  • Perfect for: Large obstructed radiators, kitchen diners
  • 139.5cm / 54.5in long
  • 6 integrated fans
  • £6/year running cost
  • 3 W power
  • ★★★★★
    Customer reviews

Bundle Deals

If you need more than one Radfan, use the Radfan 123 Bundle Builder to get access to the best discounts.

More info >

A Warmer Home, Guaranteed

The Radfan is the only independently verified and fully guaranteed radiator fan proven to make you warmer and save money. With the best performance on the market we hope you're going to love your Radfan, but if you don't, every Radfan comes with a 30 day money back 'Warmer Home Guarantee' and an 18 month manufacturer warranty. We want you to be as happy with your Radfan as we are.

Warmer home guarantee seal

30 second install

The Radfan has been designed from the ground up to be a simple self install product. It secures by magnets to the top of your radiator and installs in less than 30 seconds - it's just like installing a reading lamp.

Step 1, we deliver the Radfan
Step 2, open the box
Step 3, plug in Radfan and fit on top of radiator
Step 4, Radfan runs itself

Featured in the press

Radiators as they should be

Low power fans get the heat moving

Fans redirect warm air out into the room stopping it collecting at the ceiling
Visit shop page >

The Radfan effect

Feel warmer

Warmth where you want it

The Radfan helps surround you in warmth and makes sure the heat from your radiator is getting to where you want it the most.

Automatically increase warmth

Fit and forget

The Radfan is fully automatic. It uses a thermostatic switch to only run when your radiator is hot, no need to turn it on and off manually.

Cheap way to increase warmth and comfort

Less than £2 a year to Run

By using industry leading low power, quiet fans the Radfan consumes less than £2 of electricity a year to run.

Can reduce energy or heating bills

Extra control

The Radfan helps make better use of the heat in your room, you'll feel warmer and reduce your energy usage.

Visit shop page >

Frequently Asked Questions

Q   What size is the Radfan?

A   Take a look at our comparison chart to see the dimensions of all three Radfans.

Q   What type of radiator will the Radfan work with?

A   The Radfan has been designed to work with steel panel, water filled radiators. Sadly it's not suitable for victorian style cast iron radiators.

Q   How is the Radfan powered?

A   The Radfan is powered from a 12V power supply that comes in the box. The Radfans are very low power:

  • Radfan Smalls use 1W (about £2/year to run)
  • Radfan Mediums use 2W (about £4/year to run)
  • Radfan Larges use 3W (about £6/year to run)
  • +PLUS range uses 50% than their non-plus counter part

Q   How long is the power lead?

A   The power lead is 3 metres long and is in 2 halves. The cable is heat rated to withstand life by your radiator.

If you require a longer cable you can purchase 1.5 metre inline extension leads from our accessories store here.

Q   How many Radfans do I need?

A   The Radfan is designed to be improve the comfort of the room it is fitted in. Most of our customers start with a Radfan Long for their living room and then come back and buy the most suitable Home Pack for the other rooms in their home.

Q   How noisy is the Radfan?

A   The Radfan is a lot quieter than an electric fan heater and if you have the TV or Radio on then you can't hear it.

Q   Won't the heat affect the Radfan?

A   We made the Radfan out of the same ABS plastic that radiator control valves are made from and so it is more than happy at the temperature of a radiator.

Q   What types of radiator will the Radfan fit on?

A   The Radfan will fit on all standard panel central heating radiators and will self support on double and single panel radiators.

Q   Will the Radfan work in Europe or America?

A   Yes, the power supply that comes with the Radfan is suitable for world use. All you need to do is make sure the radiator you want to fit it to is a steel panel, water filled type and that you have a plug adapter suitable to convert the UK 3-pin plug socket to your country's socket type.

Q   If I don't like my Radfan can I return it?

A   Absolutely, we want everyone to be happy with their Radfan so if you don't like it for any reason you can return it for a full refund under our Warmer Home Guarantee within 30 days of purchase.

Q   Will the Radfan work on electric heaters/radiators or night storage heaters?

A   Sadly not, we're sorry to say that with the huge range of electric radiators and their range of temperatures it wasn't possible to design the Radfan to accommodate these.

Q   Will it work inside a radiator cabinet?

A   Yes! Many of our customers have used the Radfan in radiator cabinets and have seen a big improvement. So long as there is more than 8cm from the top of the radiator and the roof of the cabinet it will all fit fine.

Visit shop page >