SmartAir BOOST Radiator Fan

€49.99
RRP €68.99
SAVE 28%
SmartAir BOOST Radiator Fan is rated 4.1 out of 5 by 804.
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Give your heating a boost and save money year after year! Feel warmer quicker with the original, energy saving SmartAir BOOST. The patent-pending, portable, heat circulator that re-directs the heat from your radiator into the room where you are, rather than into the walls or out the window!

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Purchase our Extended Warranty, which covers your SmartAir BOOST for an additional 2 years beyond the 2-year free exclusive warranty for €8.99

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The SmartAir BOOST is the original. 

Give your heating a boost and save money year after year! Feel warmer quicker with the original, energy-saving SmartAir BOOST. The patent-pending, portable, heat circulator that re-directs the heat from your radiator into the room where you are, rather than into the walls or out the window!

It’s the patent-pending, compact, and portable multi-fan heat circulator designed to reduce energy wastage and save you money. This energy-efficient system improves the circulation of warm air, heating your living space faster and more efficiently. 

SmartAir BOOST is designed to improve heat circulation to speed up room warm-up times so your thermostat switches your heating off quicker, saving you money.  

  • Cut your heating bills: circulate heat at living height, not ceiling height so your thermostat switches off quicker and saves you money.
  • Save money year after year.
  • Redirect warm air from your radiators: rather than letting all your heat rise to slowly heat your room from the ceiling down, SmartAir Boost redirects rising heat from the radiator and accelerates it forward, boosting and improving the heat distribution more effectively.  
  • Patent-pending engineered design: four energy-efficient, axiel fans drive your radiator’s heat through sealed air-conducting funnels into your room where you want and need it. 
  • Use either Manual mode for control or Automatic mode for maximum efficiency: easily change between the two modes with the flip of a switch.
  • Costs less than a penny to run for an hour: SmartAir BOOST is so efficient it costs less than half a penny an hour to run.*
  • Use either corded or cordless for complete versatility: you can run directly SmartAir BOOST off mains power or charge the built-in power bank for up to fourteen continuous hours of use.
  • Helps dry your clothes faster by directing warm air right onto your clothes airer.
  • No installation is required: simply place it on your radiator, no need for a plumber or electrician.
  • Features intelligent auto-shut-off safety system: if your radiator gets too hot and reaches 70°C then SmartAir Boost will turn itself off until your radiator cools to 65°C. 
  • Over 5,000 sold!  
  • Lightweight and portable: take SmartAir BOOST with you from your home office in the day to the living room in the evening to your bedroom at night.
  • Discreet, modern design: fits into any room.
  • Engineered to be 41cm long to efficiently heat your whole room fast: SmartAir BOOST allows some heat to rise to heat the room from the top down while keeping the warm air it pushes into your room where you want it: around you and your family.  
  • You're in control: choose between high and low fan speeds, charge it while on the radiator or keep it cordless, go manual or automatic. The choice is yours. 
  • Fits virtually any radiator including:
    • Double Convector 
    • Tubular Double
    • Tubular Single
    • Cast Iron Style
  • Thanks to the included Stability Feet it even works on Single Convector radiators.
  • Easy-read LED digital display: tells you which fan speed you are using, High or Low, then cycles to the percentage battery life remaining and then to the surface temperature of your radiator.

Product Details:

  • Weight: 1.6kg
  • Dimensions: W 41cm x H 11.5cm x D 10.5cm
  • Wattage: 10W
  • Voltage: 5V
  • Cable length: 1.8m
  • Charge Time: 4.5 hours
  • Run Time:
    • Low: up to 14 hours
    • High: 8.5 hours
  • Volume when in use:
    • High Setting: 48.6dB
    • Low Setting: 45.7dB

*calculated using Ofgem UK price cap per kWh as of October 2022. 

This product is covered by our 30-day Money Back Guarantee (Terms & Conditions Apply). 

Rated 2 out of 5 by Rick202 from Noisy & not much use The battery doesn't last a day, it doesn't seem to push out air that's very warm and it's incredibly noisy
Date published: 2025-02-12
Rated 2 out of 5 by Hoping for more from Not all cracked up to be Does warm room up that quick the does not blow much plus noise is off putting would not recommend
Date published: 2025-02-09
Rated 5 out of 5 by Suzieq24 from Great buy Very well packaged, fits well I have a single radiator with the attachments, automatically switches on and off, depending on the temperature and blows the warm air around the room, noticed a big difference in the warmth, the full room was warm (10ft x 10ft) where before the corners were cooler. There is noise of the motor on and off. Just be aware that you need a space of at least 5” between top of radiator and window ledge overhang.
Date published: 2025-02-09
Rated 3 out of 5 by Try anything from Fan for rads Not as good as I expected, But it's better the normal heat from normal radiators.
Date published: 2025-02-09
Rated 5 out of 5 by Anonymous from Warm booster Brilliant made a massive difference to my room its lovely and warm
Date published: 2025-02-08
Rated 1 out of 5 by Suresh58 from Bad Not worth for money it doesn’t do anything waist of value
Date published: 2025-02-03
Rated 5 out of 5 by Archy from Mr This is great works a treat always said this is what radiators needed to blow the heat out.
Date published: 2025-02-01
Rated 5 out of 5 by PaulaD from Does what it says on the tin ! This Smartair Boost is great and does what it says on the tin - redirects radiator heat into a room. It makes my lounge extra cosy when needed. The only definite downside is that the charge on the device does NOT last up to 14 hours in ‘low’ setting, as stated in the instructions. It lasts closer to 8 hours maximum. Having said that, this device is well worth the money and I am very glad I made the decision to buy it.
Date published: 2025-01-30
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  • 2 Year Exclusive Warranty
  • SmartAir BOOST
  • Charger
  • 2x SmartAir BOOST Stabiliser Feet
  • Instruction Manual
  • 30 Day Money Back Guarantee