---
product_id: 86860517
title: "Slim Large - Low Power Radiator Fan"
brand: "radfan"
price: "€ 0.56"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.fr/products/86860517-slim-large-low-power-radiator-fan
store_origin: FR
region: France
---
# Ultra low 6W power consumption 139.5cm length for large radiators Smart heat-sensing auto on/off Slim Large - Low Power Radiator Fan
**Brand:** radfan
**Price:** € 0.56
**Availability:** ❌ Out of Stock
## Summary
> 🔥 Turn up the heat, not your bills! 🔥
## Quick Answers
- **What is this?** Slim Large - Low Power Radiator Fan by radfan
- **How much does it cost?** € 0.56 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/86860517-slim-large-low-power-radiator-fan)
## Best For
- radfan enthusiasts
## Why This Product
- Trusted radfan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns
## Key Features
- • **Discreet & Quiet:** Designed to blend into your home with a gentle hum, so you feel the warmth, not the noise.
- • **Smart Heat Control:** Automatically powers on/off with heat sensing technology, optimizing warmth and energy savings seamlessly.
- • **Energy-Savvy Comfort:** Runs on just 6 watts, costing only £6 a year to keep your home cozy without the guilt.
- • **Maximize Your Warmth:** Boosts heat circulation in large rooms up to 54.5 inches wide, perfect for expansive living spaces.
- • **Effortless Installation:** Magnetic mount and plug-in design means setup in under 60 seconds—no plumber or electrician needed.
## Overview
The Radfan Slim Large is a sleek, energy-efficient radiator fan designed to boost heat circulation in very large rooms. Measuring 139.5cm long, it fits most steel panel radiators and uses smart heat-sensing technology to automatically regulate operation. Easy to install with magnetic mounting and low power consumption (6W), it helps you save on heating bills while keeping your home comfortably warm. Trusted by over 35,000 UK customers and independently tested for performance and energy savings.
## Description
Product Description What kind of room is this product suitable for?The Radfan Slim Large is super at warming the very large rooms in your home, like large living rooms, kitchen/diners or if you really feel the cold.Will it fit my radiator?The Radfan Slim Large will fit most steel panel central heating radiators that are 140cm / 55” or longer. The Radfan Slim Large fits using high strength magnets and will fit to most types of radiator, although if you have a very narrow single panel radiator or wide skirting boards there may not be enough room to fit, check out the fitting dimensions below:Radfan Slim Large length: 139.5cm / 54.5”Height needed to fit (below radiator): 3.8cm / 1.5"Depth needed to fit (from front face of radiator to wall): 7cm / 2.75”Cable length: 3m / 9' 10”*Radfans are not recommended for use with electric radiators or storage heaters due to the higher surface temperatures and varying designs Will it definitely work?Radfans have been designed to work in the vast majority of UK homes and there are more than 35,000 happy customers feeling the benefits of their Radfan right now. Radfans have also been thoroughly tested in independent trials that were funded by the Department of Energy and Climate Change to make sure that you not only feel warmer, but save energy and money off your heating bill too. Radfans have been designed to be effective and discrete. The ultra-efficient fans have been designed to blend into the background noise and so you won’t notice anything more than a gentle hum.Where is it manufactured?Radfans are designed and manufactured at our factory in Tyne and Wear. Manufacturer's Description Release the heat Isn’t it annoying when your room is chilly because the radiator is trapped inside a cabinet, stuck behind the sofa or covered by the curtains? Luckily, help is at hand with the Radfan Slim. It’s designed to fit quickly and discreetly to the bottom of your radiator and actively blows the warm air up and out into your room. Perfect for awkward radiators We can’t always avoid putting radiators in awkward places that mean the heat doesn't get circulated out into the room effectively. The Radfan Slim is perfect for boosting the heat from those radiators, helping you feel warmer. Radiator cabinets Release the heat trapped inside radiator cabinets Awkward furniture Get that warmth out from behind furniture placed in front of radiators Shelves / Window sill Help the warmth get out through narrow gaps created by shelves or window sills above your radiators. Featured in the press The Radfan has been featured widely in the national press as a great british success story where it has had coverage on primetime TV and Radio. Following this fame the Radfan has picked up legions of Rad fans, with more than 35,000 happy customers so far. The Radfan has also been proven to make you feel warmer and save energy in independent trials that were funded by the Department of Energy and Climate Change. About the Startup Describe your products in 3 words.Simple, Ingenious, EffectiveHow did you come up with the idea for this product?A few years ago I was sat on the sofa next to my wife and she would always complain about being too cold, even though the central heating was on and the radiators were warm. It was clear that all the heat from the radiator was going straight up, escaping out of the window or getting trapped at the ceiling. I decided to see if I could redirect that heat flow out into the room and that's where the idea for the Radfan was born. The initial prototype was a great success, not only did we feel warmer, my wife stopped complaining!What makes your product special?The Radfan is the only product on the market that is guaranteed to make your home warmer, without having to spend more on your energy bills.What has been the best part of your experience?The best part of the startup experience for us has been the freedom to create and come up with new ideas. We love being able to try new concepts, whether it be in product design, marketing or customer service and get instant feedback from our customers. We are really proud of what we have achieved, this job can be hard-work, but it is never boring!
## Features
- Boost the heat from your radiators
- 139.5cm / 54.5in long - Ideal for warming up the very Large rooms in your home
- Easy to install and cheap to run – just 6 a year
- Heat sensing technology switches the Radfan on and off automatically
- Install yourself in less than 60 seconds - no plumber or electrician needed
## Technical Specifications
| Specification | Value |
|---------------|-------|
| Manufacturer | Radfan |
| Part Number | Slim |
| Product Dimensions | 139.5 x 7.6 x 7.5 cm; 1.05 kg |
| Item model number | Slim |
| Size | Slim Large |
| Colour | White |
| Material | ABS |
| Power Source | AC/DC |
| Voltage | 12 Volts |
| Wattage | 6 watts |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Measurement System | Metric |
| Included Components | 1 x Radfan Slim Large
1 x Radfan Power Supply
1 x Instruction Leaflet
1 That’s it, we like to keep our packaging as frustration free as possible. |
| Batteries Required? | No |
| Item Weight | 1.05 kg |
## Images
## Questions & Answers
**Q: Rad fan bought last year and only used for a few weeks is not working and the green light on the plug is flashing anyone have the same problem**
A: Mine too all of a sudden, did you work out cause?
**Q: I have low surface temperature radiators, will the heat sensor still activate the fans or can it be bypassed**
A: So long as the surface temperature reaches a minimum of 40˚C then the fans will activate.
**Q: Which of the fans are more effective in heating up the room? The ones that clip on the top or the bottom of the radiator?**
A: Hi, not sure about the ones that clip on top as our radiator is in a cabinet and the one that goes on top wouldn't have fitted. I can say that i originally got the slim small and didn't notice much of a difference so sent it back and got the medium with the 4 fans which made a noticeable difference and the room heats up quicker now.
**Q: i tried attaching it to the radiator, but its not magnetic so wont attach? what am i missing?**
A: The fan is a sort of L Shape with a lip that comes up the front of the radiator.
The magnets are in that lip and that should sit on the front of the radiator.
## Customer Reviews
### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars
Awesome product! Would recommend!
*by R***E on Reviewed in the United Kingdom on 24 December 2017*
The media could not be loaded.
Well after seeing a mixed bag of reviews on this product I decided to plump for it and give it a go. Admittedly I do think it’s slightly over priced considering it’s just a thermostat connected to a set of CPU fans. But realistically it’s the ease of operation, installation and built that warrants the price.I ordered the biggest slim bottom mounted fan for my front room. I have a sofa pushed up against it so normally the air flow around it was little to non and so the heat output was awful. After installing this little bad boy it was awesome! My room used to take around 2 hours to heat to 22c however now only takes 32 minutes! I love the way I can also just leave it plugged in 247 and it will only turn itself on once it detects the radiator warming up.I don’t think this unit is loud however my video may sound like it is because I lent it on the grille!
### ⭐⭐⭐⭐ 4.0 out of 5 stars
Worth a try..
*by A***R on Reviewed in the United Kingdom on 28 December 2018*
Works well and easy to set up, increased temperature by about 2°c . So yeah, I think they're worth a try.
### ⭐⭐⭐ 3.0 out of 5 stars
Average function. :(
*by F***Y on Reviewed in the United Kingdom on 28 February 2018*
Hmmmmm , read the reviews , some + , some -decided to give it a punt , to help a room with a radiator stuck behind a sofa. It does distribute some warm air but it takes an age for it to kick in.The radiator was roasting hot the other day but fans still hadnt kicked in.I paid £69.99 for the medium (4 fans) , which when you see what you actually get for your money is a bit overpriced.I could have picked parts up and built myself for less than half that.If i had payed around £40 i wouldve given 3.5 stars.
---
## Why Shop on Desertcart?
- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews
**Shop now:** [https://www.desertcart.fr/products/86860517-slim-large-low-power-radiator-fan](https://www.desertcart.fr/products/86860517-slim-large-low-power-radiator-fan)
---
*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-04-27*