Dyson Hot+Cool Fan Heater - Canadian Woodworking Magazine

Stellar looks, great air flow, heating and cooling modes, brushless motor, plus a built-in theromstat for automatic heat regulation - the Dyson AM05 has it all.

Dyson Hot+Cool Fan Heater

Dyson Hot+Cool Fan Heater

The Dyson Hot+Cool Fan Heater, or AM05, is a temperature abatement small room appliance that you can use throughout the year. It's designed to keep you cool duing the warm summer months, and warm during the cool fall to spring months.

Comparison to a conventional bladed fan

The AM05 is made from ABS plastic, the common thermoplastic polymer that is widely used in home appliances and even in some power tools. The most important mechanical properties of ABS are impact resistance and toughness. 
The first thing you're likely to notice is how slender the AM05 is, and that there are no visible blades or heating elements. In the photo above, on the left is a conventional cooling fan (no heating mode) with two pivoting blades designed to direct air flow upwards, where it will prove more beneficial. On the right is the AM05. No danger of curious children getting their fingers nipped by spinning blades.
The AM05 is approximately 8" wide, 7" deep and 25" high, and weighs a mere 8-1/2 pounds. It's unobtrusive enough to be placed on the floor or on an a low table. You'll need to be near enough to an electrical receptacle though, as the power cord is only 6' long.
If the black/nickel colour clashes with your decor you'll be happy to know that the AM05 is available in two other colour combinations: satin iron/satin blue and a rather striking all nickel.
Swivel base helps direct air flow

The AM05 has a touch-tilt body that allows you to re-position the direction of air flow 10-degrees upwards and downwards – which means if it's placed on the floor you can direct the flow of air upwards into the room, and vice versa. And, because it has a low center of gravity and a broad base, the AM05 stays put where ever you place it, even when turned up to it's maximum setting. There is absolutely no vibration.
Additionally, there is an oscillating feature that moves the AM05 left to right in a 70-degree arc. This enables the fan to direct the air flow over a wider area.
I found that the AM05 is a tad awkward to tilt by hand. The oscillating feature, however, operates very smoothly.
Control panel: (A) on/off, (B) airflow speed, (C) digital display, (D) temperature setting, (E) oscillation

The control panel is straight forward, and with all the buttons on the front of the unit, easy to access. There is a built-in thermostat that controls temperature, which can be set from 1 to 37 degrees Celsius in 1 degree increments. In heating mode the power button illuminates red. Set the AM05 at the temperature you want to maintain, and walk away. Once the set temperature is reached, the unit turns off automatically. To use the fan solely for cooling you simply lower the thermostat setting to zero degrees – the power button will illuminate blue. Should the AM05 accidentally tips over it will automatically turn off the power.
I've never used the control panel on the front of the AM05, because the unit comes with a convenient remote.
Remote: (A) on/off, (B) airflow speed, (C) temperature setting, (D) oscillation

The remote makes the AM05 much more convenient to control, particularly for the disabled or elderly. You can use it to turn the unit on and off, and to adjust airflow, temperature, and oscillation. The remote has a curved and magnetized face so that it can be stored on top of the unit.
You may still be wondering how the AM05 works, given that there are no blades, and no apparent heating coils.
The Air Multiplier

The answer is, in part, 'Air Multiplier' technology. The AM05 consists of two parts – the top oblong section is called the 'amplifier'. Below the amplifier is the 'base', which contains the motor, an impeller, and all the digital gadgetry. In fact, there are blades, attached to the impeller that serve to draw air into the unit through inlets around the base. The air is then forced up through the amplifier at a rate of 28 liters of air per second. If the AM05 is in heating mode ceramic heating blocks in the amplifier heat the air. The air then accelerates out of the amplifier through a narrow 2.5mm aperture and passes over an airfoil shaped ramp as it exits.
The ceramic heating blocks are pretty efficient because they heat up quickly (like a convection heater, heating up the air that passes through them) and provide a large radiating surface. The blocks are also very durable, making them long lasting..
The AM05 also uses a brushless electric motor, which has a lot of advantages over a conventional brushed motor. Brushless motors are smaller and lighter; they use electronic speed controllers that provide increased control over motor speeds; they produce less friction, heat, and amp draw so they make more efficient use of energy; they're virtually maintenance free; and they have a longer service life. Which makes them a better all round choice. For more information read our short Introduction to Brushless Motors.
It's worth noting that the body of the AM05 remains cool to the touch when heating a room – which should be of some comfort to parents with wee ones. According to Dyson, because the heating elements never exceed  200°C you'll never get a burning dust odour.
Compact, unobtrusive, and efficient
I've used the AM05 throughout part of the summer. It sure does a great job of cooling down a room in the 330 square foot room - the largest room in our home. Although Dyson claims that the AM05 is a quiet fan, it's not exactly whisper quiet. On the 1st to 3rd air flow settings it's quiet enough that you can carry on a conversation, listen to music, or take a cat nap. At the 4th setting it's beginning to be noticeable. On any setting from 5 to 10 it's loud – much like any fan. In comparison, the level 1 setting on two blade fan that I was previously using is equivalent to the 2nd or 3rd level on the AM05.
I've only used the heating mode half a dozen times, but find that it heats up the living room (or more accurately anyone in the room) fairly quickly. Typically I set it at a 21 degree temperature setting and on the 2nd fan setting. For me, it's a comfortable temperature, and the fan is hardly noticable. For a larger room you might need to ramp the air flow up initially, until you begin to warm up, and then lower the air flow. I found that to raise the heat in my living room from 18 degrees to 21 degrees took just under four minutes. Not too shabby.
I like the fact that you can set the AM05 to a specific temperature level and then just leave it alone - it comes on, and goes off automatically, keeping the room at the desired temperature. It's also a lot more convenient to have one cooling/heating appliance, rather than two separate appliances. It's also small, doesn't take up a lot of space, and becasue of it's design is pretty unobtrusive.
I didn't notice an appreciable difference in my monthly power bill over the summer, so I assume the AM05, for the length of time I used it, didn't result in an appreciable increase in my power costs. The AM05 is rated at 1500 watts, or 1.5kW, and costs me about .90¢ to operate over an 8 hour period (based on a rate of 7.52¢ per kWh).
While not a replacement for an air conditioner, it's a fabulous appliance for cooling (and heating) small rooms – Dyson claims up to 1000 square feet. If your looking for a single appliance to take care of both your small room heating and cooling – one that will blend in with just about any home decor – then the Dyson AM05 just might be the ticket.


  • Air Multiplier Technology
  • Auto shut off if tipped over
  • Dimensions: 8-1/2" W x 6-11/16" D x 25" H
  • Motor: 12.5 Amps (1500 watts)
  • Heater: PTC ceramic
  • Temperature range: 1 - 37 degrees
  • # of speed setting: 10
  • Oscillation: 70 degrees
  • Tilt angle: 10 degrees (forward/backwards)
  • Power cord: 6 feet
  • Warranty: 2 years
  • Available in 3 colours: Satin Iron/Satin Blue, Black/Nickel, and all Nickel
  • Includes: Remote control, user guide

MADE IN:Malaysia
SOURCE:Where to Buy
November 2014
Carl Duguay
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