Dyson Purifier Hot+Cool Review

Designed to be a space heater, air purifier, and fan, the Dyson Hot+Cool is a force to be reckoned with. Equipped with convenient and user-friendly controls, it's easy to warm up small spaces to exactly the temperature you want them.

Performance Comparison

Personal Heat

To determine how well each model performed, we conducted various tests. We wanted to know how well each heater could fit under a desk and how comfortable the heat was at such a close range. We also considered how well each heater worked in a living room setting. The Hot+Cool produces a gentle heat that feels more like the radiant heat from a furnace rather than that of a fire. This feature makes it easy to sit in front of for as long as you need without one spot on your body overheating from a direct blast of heat. It comes up to temperature quickly, which is ideal when you enter a cold room and want to get warm fast.

The powerful fan on this unit makes it so you can feel its warm air up to 12 feet away. The air loses quite a bit of warmth at this distance, but it is still nice you have the option of setting it up father away. While most space heaters typically offer a couple of fan speeds, the Dyson has ten variable speeds. When set to 10, it feels like you're going to get blown over; our testers found the sweet spot to be around six or seven. The air feels slightly warmer at setting number four, but you have to be pretty close to the device to feel it.

While this unit generates plenty of heat, the machine is too large to fit under a desk. The hot air coming out of this device never feels super hot like some other models do, but we found this to be a more comfortable experience. If you want concentrated and intense heat, you might prefer other models.

Convenience

The scores for convenience come down to all the features that either increase or decrease the ease of operation. Things like programmable settings, remote operation, and intuitive controls all affect the user-friendliness of a device. Convenience is where the Hot+Cool takes the cake. For starters, it has the most advanced options for how you want it to oscillate. You can choose between stationary or rotating 45, 90, 180, or 350 degrees. You can set its timer for half an hour, an hour, two hours, four hours, and eight hours.

The remote is clearly labeled with intuitive images, and it stores nestled up against the body of the machine via magnets. This device has one of the largest temperature readouts and displays temperatures from 33 to 99 degrees Fahrenheit. Perhaps most notable is that this machine is a three-in-one combo; it functions as a space heater, air purifier, and fan. Having all three of these devices rolled into one saves precious floor space — no matter the season, this machine is a valuable addition to any room.

While the air purifier is smartphone and smart home compatible, the heating component is not. While the remote is easy to use, there are very few controls on the actual body of the machine should you lose it. You will only be able to turn the machine on and off to the last setting you set it to with the remote.

Small Room Heating

To determine how effective at heating small spaces each model is, we set them up in our 161 square foot testing room and ran them for an hour. Using a lab-grade thermometer, we measured how much heat was added in twenty-minute increments for the duration of the hour. The Hot+Cool was the clear victor in its ability to heat a small room quickly.

When used in our 161 square foot testing room, it raised the room temperature by 8.4 degrees in the first twenty minutes of operation. From 20 to 40 minutes, the temperature went up an additional 2.4 degrees, and from 40 to 60 minutes, another 2.2 degrees.

Over an hour, it was able to bring the room temperature up a full 13 degrees, beating out all the other machines we tested.

Power Consumption

Even the best space heaters aren't known for being the most energy-efficient devices, and we wanted to know just how power-hungry each device actually is. We used a wattmeter to find out how much the Dyson used. We then multiplied that number by the national average cost of kilowatt per hour. From there, we could determine how much it cost to use each machine for ten hours and one month.

The Dyson's biggest flaw is much energy it consumes. It is by no means the worst offender on our list, but it's a far cry from being a truly energy-efficient device. The Dyson costs $1.76 for 10 hours of use, $53 for 10 hours a day over 30 days, or about $127 when run around the clock for 30 days. These operational costs put this machine slightly above average in terms of energy consumption. When you consider how powerful this machine is, the energy costs aren't that surprising; if anything, they were better than expected.

Should You Buy the Dyson Purifier Hot+Cool?

The Dyson Hot+Cool brings a lot to the table. It is a fully functional space heater and a high-quality air purifier. But this combination of tech doesn't come cheap. Given how unique a product it is, the price is incomparable to the rest of the field. If you are in the market for both, this is a great way to save space and reduce the number of devices you have in your house. Given its performance and versatility, we think the high cost is worth it — assuming you want all the included features.

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