Summer is officially over, and colder temperatures are on the horizon. But as someone who tries (and often fails) to keep my central heating off for as long as possible, I was excited to hear that Dyson had added a new 3-in-1 fan heater to the brand’s ever-growing list of appliances.
Not only is the Dyson Purifier Hot+Cool HP1 Purifying Fan Heater competing with the best electric heaters out there, but it’s also going up against the best fans and even the best air purifiers. So, I was eager to see if it had what it took to become my new favourite year-round machine, and as I write this, my central heating has stayed well and truly off.
In a nutshell
Dyson has released a string of new products in recent months, with more to come soon. I’ve also had the pleasure of testing many of them, but the Dyson Purifier Hot+Cool HP1 Purifying Fan Heater is by far my favourite from a comfort perspective. After all, temperatures may be dropping, but I’ve been using this new 3-in-1 heater, fan and air purifier to keep my home at a cosy (and stable) 23°C for weeks now.
Offering 10 fan speed settings in both heating and cooling modes (which results in a temperature range of 1-37°C), this electric heater gives you the chance to use it year-round while capturing up to 99.95% of pollutants simultaneously. In fact, Dyson’s impressive Air Multiplier technology, which projects over 290 litres of airflow per second, made it easy to adjust the temperature in my house.
The app is incredibly simple to use, with many customisation options available to set schedules, set your desired temperatures, and inspect your air quality data. But if apps aren’t your thing, you can just use the remote control provided, which is stored neatly on top of the stylish bladeless appliance.
Of course, like all Dyson appliances, this isn’t the cheapest electric heater in the world – and it’s also not the quietest. But it is an effective 3-in-1 appliance that I do think is worth the investment if you can get past the sound of whooshing air.
Specifications
- Weight: 5.26kg
- Cord length: 1.8m
- Room coverage: 81m³
- Noise levels: 60dB-70dB (tested by us)
- Oscillation: Up to 350°
- Filter type: 360 Combi Glass HEPA + Activated Carbon filter
- RRP: £549.99
How I tested
Unboxing, setting up and first impressions
I’ve tested enough Dyson products to know that, while the build quality is generally impressive, this normally results in a heavier-than-average appliance. So, I was pleasantly surprised when the Dyson Purifier Hot+Cool HP1 turned up on my doorstep.
The fan heater itself is just 5.26kg, which is slightly lighter than the now-sold-out Dyson Purifier Hot+Cool Formaldehyde HP09 Purifying Fan Heater, which we gave a 4.5-star review. But with the packaging, everything came to 7.17kg, which was comfortable enough to carry through the house. There were even carry handles on the box to make it even easier.
Staying with the packaging, the majority of the Dyson Purifier Hot+Cool HP1’s packaging was recyclable cardboard, but there was a little bit of plastic wrapped around the main box and the fan heater itself. This was a little disappointing, as the cardboard shell within the box probably would have been enough protection without the addition of the non-recyclable plastic.
Packaging aside, however, setting up this fan heater couldn’t have been simpler. The main unit and its filter were already assembled, and all I had to do was remove the handy remote control, peel off a few bits of tape, and plug it in.
Image 1 of 3
Then, I used the MyDyson app to scan the serial number on the bottom of the appliance and go through the motions to pair it. This took seconds, and I was ready to go within five minutes of receiving the box.
With everything ready to go, I decided to take a step back and assess the design of the Dyson Purifier Hot+Cool HP1, and I must admit that I did -and still do – really like it. The white and silver colourway is a slight change from the gold and teal you often see from Dyson, and I find this colourway slightly less assuming and blendable – especially in my small home, where I don’t want my appliances to stick out and make the place look even more cluttered.
The bladeless design also allows for a sleek, slimline look, and the whole unit was a lot smaller than I was expecting – especially after recently testing the Dyson Purifier Humidify+Cool PH2 De-Nox, which was a lot heftier.
The fact that the magnetic remote control could also be stuck to the top of the unit also made me happy, as I always misplace electrical remotes in my house. Of course, this isn’t new for Dyson and is the case across the majority of their environmental care products, but it’s still nice to see that the brand realises what customers want.
Ease of use
The Dyson Purifier Hot+Cool HP1 has a handy remote control that allows you to turn it on, change the fan speed, adjust the temperature and oscillation, and pop it on Night mode. But as I’m someone who always has my phone on me, I primarily used the MyDyson app during testing – especially as this is where you’ll also find even more settings and data.
It’s on this app that you can also set up voice controls to connect the fan and heater to Siri, Amazon Alexa or Google Home, and you can even schedule your machine to turn on at your desired day and time. As I work from home, I didn’t really need to use this option too much, but I did try it out.
In fact, one evening when I checked the weather forecast and saw that temperatures were dropping overnight, I scheduled the heater to start heating up my living room before I woke up, so I didn’t have to leave my cosy bed for a freezing cold sofa, and it was glorious. You can also do the opposite and set up a schedule for the fan during the summer months.
On another tab within the app, you can also check out the ‘Data and Insights,’ which gives you detailed information and graphs on your indoor and outdoor air quality (based on your location in the world), as well as the room’s current temperature and the PM2.5 (small particulate matter) and PM10 (large particulate matter) levels.
Image 1 of 3
I will say that the data provided by the Dyson Purifier Hot+Cool HP1 will be more than enough if you’re worried about everyday dust and allergens, but it isn’t as extensive as other multi-purpose air purifiers I’ve tested before. For example, I recently tested the Dyson Purifier Humidify+Cool PH2 De-Nox, which also monitors and filters out other particulates like HCHO (formaldehyde), VOCs (Volatile Organic Compounds), and NO2 (Nitrogen Dioxide).
However, for this particular model, I don’t think the USP is the purifying power. Instead, it’s the heating and cooling power – and the purification is just an added bonus. The fact that the app is so easy to use and understand is a plus point, too.
It’s worth noting that the one niggle I did find during testing, though, was that the app would often tell me that it couldn’t connect to the fan heater. This might have something to do with my internet (which is pretty unstable and has to deal with a lot of use as I work from home and test multiple app-connected appliances each day), but it was a bit frustrating.
I fixed it by turning it on via the button on the fan heater instead, so if you have weak or unstable internet, you may or may not experience the same. It always sorted itself out after a few minutes, though.
Performance
As I tested the Dyson Purifier Hot+Cool HP1 in September, I actually got the chance to naturally test out both the heating and the fan settings. That’s because I’m a hot sleeper and my south-facing bedroom is always boiling even during the chillier months, but the mornings and days in my north-facing office and living room are cold.
One thing that seriously impressed me was how quickly the temperature in the room changed. In my cold living room, the temperature rose from 15°C to my desired temperature of 23°C in just fifteen minutes thanks to the push of hot air – and this is where Dyson’s impressive air multiplier technology really comes into play.
I could feel the hot air from across the room, and the fact that it can oscillate up to 350° means it can spread that warmth into every corner and crevice. However, with a temperature range of 1°C – 37°C, you can tailor it to your own personal preferences.
Image 1 of 3
The cooling properties were equally as impressive, and the cooling temperatures coupled with the gusts of purified air meant that both my husband (who suffers from hay fever and nighttime congestion) and I slept like babies overnight. My husband also felt a noticeable difference in his congestion when we used it compared to when we didn’t.
In fact, you can’t ignore the air purifying properties of the Hot+Cool HP1 – despite being a little more basic than the average air purifier. And when I lit a match and let it go out in front of the machine (and therefore adding smoke to the air), I could see my air quality levels decrease rapidly on both the app and the LCD screen on the front of the machine. The fan speed automatically amped up to deal with this drop in air quality, too.
I also noticed a difference when I vacuumed in the same room the fan heater was in, and the fan heater took just a few minutes to notice the upkick of dust and debris in the air. Thanks to the ‘Auto’ mode, the machine then worked consistently to achieve the desired target air quality level.
I also loved how lightweight and portable the Hot+Cool HP1 was, which meant that I could very easily move it from one room to the other to heat the space I was in rather than turn on my central heating to heat my whole house. Even my dog appreciated the warm rush of air coming out of it, and would often sit right in front of it while I was working in my office.
Noise levels
One thing I will say about fan heaters is that they are loud – and much louder than other types of electric heaters like ceramic or convection. And while Dyson officially claims that the Dyson Hot+Cool HP1 has a decibel rating of 63dB, I always like to test these claims for myself on a decibel meter app on my phone.
At its lowest fan setting, I recorded a decibel reading of 60dB, which is equivalent to the sound of two people conversing. On its highest fan setting, I recorded 70dB, which is about the same level as a vacuum cleaner. Because of this, it’s one of the loudest electric heaters we’ve tested.
I will caveat this by saying that Dyson fan heaters aren’t like other fan heaters, which rely on moving blades and parts. Due to the iconic bladeless design, the noise levels produced by the Dyson Hot+Cool HP1 are similar to white noise, and it sounds more like a constant gush of air than anything else.
Personally, I didn’t find it too aggravating and could block it out when I had the TV turned on or was listening to music, but I don’t think it would suit someone looking for a quiet or silent electric heater, as this simply isn’t it. If you’re looking for silent, I’d suggest the AENO Premium Eco AGH003S Smart Panel Heater instead.
Energy use
The wattage of the Dyson Purifier Hot+Cool HP1 is 2250W, which is pretty standard for a fan heater. According to the October 2025 price cap, this means that it’ll cost 59p an hour to run.
However, the HP1 has many energy-efficient features to cut down the cost of running an electric heater, too.
With this new model, Dyson has incorporated ceramic plates, which will warm the whole room with less energy, and they claim that the built-in thermostats can help you save up to 30% in running costs.
When in Auto mode, the purifying power of the machine will also only be utilised when needed – rather than constantly running in the background. So, while no electric heater will ever be free to use, it seems as though Dyson has made a conscious effort to make it cheaper in the long run.
Cleaning and maintenance
As the Dyson Hot+Cool HP1 contains a 360 Combi Glass HEPA + Carbon air purifier 2-in-1 filter, there is some maintenance required. In fact, Dyson recommends replacing this filter every 12 months when the machine itself notifies you.
You can also keep track of the filter life in the ‘Settings’ section of the app, and even buy a new one through it. At the time of writing, a replacement filter will set you back £75 from the Dyson website. So, this is an extra cost to consider if you want to invest in this fan heater.
Aside from that, the only other cleaning and maintenance task is to unplug the machine and wipe the loop amplifier and filter unit with a dry or damp cloth every so often.
How does it rate online?
As the Dyson Purifier HP1 Hot+Cool Purifying Fan Heater is a new product that has only just been released, there are very few reviews on the website from paying customers who have bought it themselves. There are reviews from those who have received it from Dyson as a free gift, though, and these reviews are already very positive, with one customer going as far as to say, ‘If you care about air quality, comfort, and convenience, this is a must-have in every home.’
However, to ensure I provide you with a proper representation of the reviews, I’ll update this in a few weeks once paying customers have purchased and used it for a significant amount of time. This, I believe, will provide a more accurate representation of its online rating.
Verdict: Should you buy the Dyson Purifier HP1 Hot+Cool Purifying Fan Heater?
If you’re looking for a powerful fan heater to help you beat the winter chill that’ll also serve as a fan during the summer months, I honestly don’t think you can go wrong with the Dyson Purifier Hot+Cool HP1 Purifying Fan Heater. Sure, it’s an investment, but it’s technically three appliances in one, which makes the price a little easier to stomach.
It became my saving grace during my three-week testing period, cooling down my scorching hot bedroom in late summer and heating up my office and living room during the colder mornings. And I’m still using it now as I write this review – despite the fact that my testing period has come to an end.
I think it’ll be a welcome addition to any home during any stage of the year, as the purifying properties can also help to remove pollutants from the air. However, I do appreciate that Dyson products do come at a premium, and there are quieter electric heaters out there, so know that it might not suit everyone.
Read the full article here