37 of 41 people found the following review helpful
Misleading technical claptrap,
For all of you that are ready to be fooled by this new high tech product, I make the following comments.
At 2.0 kW max output, the heater OUTPUT is the same as ANY electric heater rated at 2.0 kW.
As electric heat is 100% efficient (there are no system external losses), it can only add 2.0 kW of actual HEAT into your room.
In doing so it uses 2.0 kWh which is added onto your meter and your electric bill (at about 10p per kWh) - THE COST WILL BE THE SAME AS ANY OTHER 2.0 kW DOMESTIC ELECTRIC FAN HEATER.
Some of the '5 star' reviews here are based on the Dyson heater being able to heat their room 'super' fast, as if this is somehow attributed to DYSON's 'special' design. ANY cheap fan heater of the same power rating will have an identical effect to the room temperature.
I would suggest trying a cheaper £30.00 heater first (also available on AMAZON). You will get the exactly the same result and save yourself nearly £250.00.
Okay it may blow air around, but it WILL NOT not heat the room any faster.
It can't and won't miraculously add any 'free' heat.
It may circulate the air around the room to create a more even temperature - but so does ANY fan heater.
Any heat that is created by so called 'inefficient' motors used in more conventional fans, also ends up in your room, so as there are no 'external' losses there is absolutely no difference to overall efficiency.
The fan motor power is normally very small when compared to the heater power anyway.
Also as claimed, it has 'Powerful Cooling' (I assume in fan only mode) and 'cools' better than other fans.
NO it doesn't.
NO FAN cools simply by moving air through it. IT CAN NOT AND WILL NOT LOWER YOUR ROOM TEMPERATURE.
A fan moves air across your skin which causes faster evaporation of 'moisture' (sweat), which then cools you (latent heat of evaporation). The faster the air velocity, the faster the evaporation, the more latent heat is adsorbed.
If you don't believe me, measure the inlet and outlet air temperatures through any room fan (or the DYSON) - they are equal.
THIS IS A VERY, VERY, EXPENSIVE GIMMICK SO DO NOT BE FOOLED BY TECHNICAL B.S. OR MISLEADING CLAIMS.
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Showing 1-7 of 7 posts in this discussion
Initial post: 6 Jan 2013 08:33:03 GMT
Sure if you have the dyson and a basic 2kwh turned on for a hour the energy cost is the same. The difference is the basic fan heats air and blows this heated air out. The dyson heats a small amount of air then draws in surrounding air that hasn't been drawn through the heater, combines the the 2 and blows the 1:6 ratio of warmer air out. That's why it costs £300 and heats my conservatory faster that the heater it replaced. The air is cycled quicker. Combine this with auto thermostatic control, a remote, rotation and it's worth the money. It's made my room much more usable.
In reply to an earlier post on 7 Jan 2013 09:28:15 GMT
Glenn Jones says:
Iain - Like I said, the recirculation fan creates a more even room temperature than a heater that only radiates heat. However, as 2.0 kW is 2.0 kW it will NOT heat your room any quicker (or cost less to run), than ANY fan heater of the same power rating. As thermostat control is standard on all domestic heaters, then paying £250.00 extra for a remote controller seems a bit extravagant to me.
Posted on 1 May 2013 22:09:57 BDT
G S. Travis says:
Glenn is absolutely correct in what he says in his post. There is no denying the design appeal of this heater but other than this it is no more (or less) efficient than any other fan heater on the market regardless of cost.
It will not heat a room any quicker (or slower) regardless of claims. The air flow from this unit may have an unconventional air distribution pattern, unfortunately this makes no difference whatsoever.
Similarly it cannot reduce air temperature on fan only as Glenn rightly says, however the feeling of air being passed over the skin does give a cooling sensation.
Posted on 1 May 2013 22:17:24 BDT
[Deleted by the author on 1 May 2013 22:17:43 BDT]
In reply to an earlier post on 18 Nov 2013 20:58:08 GMT
[Deleted by the author on 18 Nov 2013 20:58:26 GMT]
Posted on 10 Mar 2014 00:06:34 GMT
For your information, nothing in this world is 100% efficient.
In reply to an earlier post on 10 Mar 2014 09:17:58 GMT
Glenn Jones says:
DLL122 - So what happened to Newtons laws on conservation of energy then? Last time I looked they still applied - unless of course you know better.
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