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Summer mode - Air circulation

Designed for both summer and winter use - all the benefits of the Radfan Classic Medium model for winter use plus the additional feature of air circulation during warm summer days and nights, when the air is still and sticky.

A discretely positioned onboard rocker switch enables summer mode, when the 4 fans will constantly circulate background air, drawing up cooler air from the floor level, over the water-filled metal radiator and pushing this out horizontally at radiator top height into the room.

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Extra power

With 4 fans spanning nearly a metre in length, the Radfan Extra Medium is a great addition to the larger rooms in your home. Ideal for larger living rooms, dining rooms and hallways.

Winter mode - Get the warmth out

We can't always avoid placing sofas in front of radiators. The extra fans in the Radfan Extra Medium means that every last bit of warmth gets out in to the room and not trapped in your sofa.

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Winter mode - Trap the heat in

For radiators under windows the Radfan Extra Medium reduces heat lost through the window by 35%. Keep the warmth in your home and stop warming up the great outdoors.

Forget about it

In winter mode the built in thermostat means the Radfan Extra Medium runs itself and won't bother you at all. When the radiator is hot, your Radfan Extra Medium turns itself on.

In summer mode the thermostat is bypassed enabling the fans to provide continuous background air circulation.

Very low power fans (4 fans at 0.6 Watts each) mean that the Radfan Extra currently costs 1 pence per day in total to run continuously, based on current average electrical energy domestic tariff of 17p per kilowatt-hour.

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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.

Please note that Radfans must not be placed on any heating device other than a water-filled steel-panel radiator. Radfans are not recommended for use with electric radiators/storage heaters or other types of radiator due to higher surface temperatures and varying designs, making a secure fit and safe operation impossible to guarantee.

If you are interested in buying please see our purchase page on this website.

Technical Details

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Size & Weight

  • Length: 95 cm / 37.5"

  • Height (overall): 11.5 cm / 4.5"

  • Height (above radiator): 8 cm / 3.1"

  • Depth: 7.5 cm / 3"

  • Weight: 732 g / 25.8 oz

  • Cable length: 3 m / 9' 10"


  • 4W, 12V DC


  • 0°C - 88°C

In the box

  • Radfan Classic Medium

  • DC power supply (UK 3 pin plug)

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