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Radiator Booster® Ultra

Regular price
£49.99
Regular price
Sale price
£49.99
Tax included.

Radiator Booster Ultra: The Smartest Way to Heat Your Home

Turn your radiator into a rapid heating system. The Radiator Booster Ultra is a premium, cordless fan system that sits discreetly on top of your radiator. It traps the heat that usually drifts uselessly to the ceiling and projects it forward into your room, warming you 2X faster and slashing energy bills by up to 20%.

Why the 'Ultra' Stands Out

  • 🧲 Secure Magnetic Fit: Unlike cheaper models that balance precariously, the Ultra features integrated heat-resistant magnets that lock the unit firmly onto your radiator, ensuring stability even at full fan speed.

  • 🔋 Class-Leading Battery Life: Powered by a massive 5200mAh Lithium Battery, enjoy 8–20 hours of cordless heat (vs. standard 6-hour models). Move it from your home office by day to your living room by night without ever looking for a plug.

  • 🌡️ Intelligent Thermostat: Switch to Automatic Mode, and the device will sleep until your radiator reaches 33°C (91°F), instantly activating to circulate warmth exactly when you need it.

  • 🤫 Whisper-Quiet Technology: Engineered with three brushless motors that operate at under 38dB, it boosts warmth without boosting noise—perfect for bedrooms and light sleepers.

Key Benefits

  • 2X Faster Warm-Up: Directs airflow horizontally into the room, raising the ambient temperature in half the time of a standard radiator.

  • Universal Charging: Features a modern USB-C port (cable included). The unit can run continuously while plugged in or go completely wireless.

  • Customizable Comfort: Choose from 3 fan speeds or use the built-in timer (2–12 hours) to automate your heating schedule.

Product details

Dimensions:41cm x 11cm x 8.5cm
Weight:0.69kg
Airflow:102 CFM
Battery:5200mAh (8–20 hours runtime)
Mounting:Gravity + Integrated Magnets
Auto-On Trigger:33°C

Delivery

Pre-orders will be delivered in February 2026 as soon as RadiatorBooster® is made available for sale.

FREE standard UK delivery: 2-3 days
Returns

If you're not completely satisfied with your RadiatorBooster®, you can return it to us within 30 days for a full refund. Please note your RadiatorBooster® must be in sellable condition.

    Radiator Booster® Ultra
    Radiator Booster® Ultra
    £3.95 standard UK shipping
    30-day returns
    Satisfaction guarantee

    Testimonials

    I noticed an increase in temperature straight away.

    N. Jameson

    RadiatorBooster significantly reduced our heating bills over the winter period.

    F. Challenor

    It couldn't have been easier to set up and it has definitely made our room feel warmer.

    F. Clarence

    Great little product. Well worth the money for the savings.

    J. McDiarmud

    Instant Benefits

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    FAQs

    How does RadiatorBooster® work?

    RadiatorBooster® draws heat from your radiator, heating a room quicker, allowing the boiler to shut down sooner.

    This simple process sucks wasted heat away from the wall and directs it into your room, reducing losses, potentially saving you energy. It really is that simple!

    How much will RadiatorBooster® reduce my heating bills by?

    This depends on your heating usage and environment.

    Testing shows RadiatorBooster® can heat up a room to the desired temperature in almost half the usual time.

    This can lead to significant savings on energy bills. You can also use multiple RadiatorBooster® units on radiators around the home to increase your overall savings.

    Can I leave my RadiatorBooster® switched on all the time?

    Yes. RadiatorBooster® model is thermostatically controlled, meaning it will only operate when your radiator gets hot, and it will shut down as the radiator cools.

    Can I use a power bank to power my RadiatorBooster®?

    Yes. RadiatorBooster® has a USB output and so will work with any USB-enabled power bank.

    Does RadiatorBooster® make a noise?

    The dual fans used in RadiatorBooster® are small and optimised to run at a quiet level of volume. Most users find these to be unnoticeable.

    Like any fans, they do emit a low-volume humming noise. If you are exceptionally sensitive to noise, we recommend trying the unit to see if it fits with your needs.

    Is RadiatorBooster® portable?

    Yes. All RadiatorBooster® needs is a power source. It can be moved from room to room depending on where you're spending time.

    Should I put one in every room?

    We would recommend you place one in each room that you regularly use, but it is not essential for other rooms. You could unplug and move one very easily if necessary.

    If you wish to keep your whole house warm for the least energy use, then one RadiatorBooster® in each room would optimise your energy savings.

    Are power lead extensions available?

    Yes. If your power socket is more than 2m away from where you want to place your RadiatorBooster®, you can purchase an extension cable from us. Alternatively, you can use any USB-enabled power bank to power your RadiatorBooster®.

    Do I need to clean my RadiatorBooster®?

    Yes. As with any domestic product, dust will build up on various surfaces. Clean it periodically using a lint free cloth.