Designed for more warmth with less energy.
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Loved by 200,000+ happy customers!
Why choose HeatForces?
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Maximum Efficiency
Get the most out of your heating, lower the temperature and increase performance.
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More Heat
The fans distribute the heat faster and more evenly throughout the room.
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No Noise
All HeatForces are modulating. This means maximum airflow without any sound at all.
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Universally Compatible
With the click-on corner pieces, the HeatForce fits all radiators and convectors.
Designed for more warmth with less energy.
Experience the benefits of efficiency. The radiator fan maximizes the output of your heating system, helping you save on costs while enjoying greater comfort.
Mehr Wärme bei weniger Energieverbrauch.
Erleben Sie die Vorteile von Effizienz. Der Heizkörper-Ventilator maximiert die Leistung Ihres Heizsystems und hilft Ihnen, Kosten zu sparen und gleichzeitig mehr Komfort zu genießen.
Installed in just 5 minutes
With the magnets, you place the HeatForce at the bottom of the radiator. For convectors, you use the feet. Once connected to power, the fans switch on and off automatically thanks to the temperature sensor. That way, you can enjoy more warmth with less energy in no time, without using any tools!
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All your questions, answered clearly
Choose a topic and open a question.
General What does a radiator fan actually do?
It sits under your radiator and gently pushes warm air into the room. Result: your room warms up faster and more evenly — fewer cold corners, less waiting.
General Will it really help me save money?
Most people can turn the thermostat down by about 1–2 °C without feeling colder. That can add up to serious savings over a heating season.
General Is it loud or distracting?
No. It’s whisper-quiet. In a normal living room you’ll barely notice it — just a gentle airflow doing its job.
General Does it run all the time?
It’s automatic. When the radiator heats up, the fan starts. When the radiator cools down, it stops. You don’t have to think about it.
Installation Do I need tools to fit it?
No tools needed. Clip the magnets to the radiator (or use the included feet), stick the small sensor on a hot spot, plug in — done in about 5 minutes.
Installation Where do I put the temperature sensor?
On the radiator itself, ideally near the hot water inlet. It needs to “feel” the heat to switch the fan on and off at the right time.
Installation Can I power several fans from one plug?
Yes — you can daisy-chain up to five units on a single adapter. Handy for long radiators or big rooms.
Installation What if my radiator isn’t magnetic?
Use the included feet to place the unit under the radiator. It works just as well — the magnets are only for easy mounting.
Compatibility Will it fit my type of radiator?
It fits most panel radiators and convectors. Unusual shapes? Just place it beneath — airflow does the rest.
Compatibility Does it work with heat pumps or district heating?
Yes. Standard sensor: on around ~33 °C, off around ~25 °C. For ultra-low temps there’s a low-temp sensor so it starts earlier.
Compatibility What size set do I need (single, double, triple)?
Small radiator → single unit; medium → double; large → triple. Very long radiators? Chain extra units up to five total.
Compatibility What about covers or a sofa in front?
That’s where a fan shines: it pushes warm air out from behind obstacles so the room still heats evenly.
Usage Do I need to switch it on and off every day?
No. Plug it in once. It follows your heating automatically — on when hot, off when cool.
Usage Can I change the fan speed?
It’s set to the sweet spot: strong airflow, very quiet. No knob needed — less fuss, more comfort.
Usage Is it safe to leave on when I’m out or sleeping?
Yes. Low-voltage, low power and automatic shut-off. It’s designed for everyday, unattended use.
Usage How do I get the best results?
Keep the front of the radiator clear, close doors you don’t need, and set your thermostat 1 °C lower — you’ll likely feel no difference, except on your bill.
Performance How quickly will my room feel warmer?
Usually within minutes. The fan moves the warm air right into the room instead of letting it pool by the radiator.
Performance How much electricity does it use itself?
Just a tiny bit — only a few tenths of a watt per fan. The heating savings easily outweigh that.
Performance Will it dry the air or stir up dust?
No extra drying — it just helps the radiator do its job. As with any airflow, a light dusting now and then keeps things fresh.
Performance Can I use it in big rooms or open spaces?
Yes — for large radiators use a double or triple set, or chain units. The goal is to cover most of the radiator length.
Troubleshooting Radiator’s hot but the fan won’t start — now what?
Check power and plugs, make sure the sensor touches a hot spot, and confirm the radiator reaches roughly 33 °C. Ultra-low temp system? Consider the low-temp sensor.
Troubleshooting Fan keeps running after the heating’s off — is that normal?
Some radiators hold residual heat. Move the sensor to a spot that cools faster. If it truly never stops on a cold radiator, the sensor may need replacing.
Troubleshooting I can hear a buzz or vibration — how do I fix that?
Reseat the unit so it sits flat, keep cables from touching the casing, and make sure nothing (like fluff) touches the blades. That usually solves it.
Troubleshooting Nothing seems to help — who can I contact?
Reach out to support with a quick photo of your setup and we’ll sort it fast — sensor position and plugs are the two common culprits.
