This item was demonstrated to me by a Dyson salesman at cannery wharf and was impressed by the heat that the unit produced at which point I asked what the power consumption was and was told 40 watts which i was amazed at so I asked is that with the heat running to which I was told “yes” so I said are you sure because that is amazing to which again was told “yes” so I purchased one as I wanted to use it to heat our living room instead of putting heating on and waiting for room to heat up…. To my total disappointment when I checked my smart meter it told me that this 40 watt heater was actually using 1500 watts not that 40watts told by Dyson salesman so I how have a very expensive to buy and run heater that will never get using due to power consumption