How much electricity is my fan/AC using?

rookoo

Cheers for the advice

worried_jim

If he is an electrician please name and shame cos he's going to end up killing someone if he thinks that's an aircon unit! What a moron.

maninthestreet

worried_jim wrote: »

If he is an electrician please name and shame cos he's going to end up killing someone if he thinks that's an aircon unit! What a moron.

Indeed - he doesn't appear to be very bright.

coffeehound

Out of interest, does anyone know the convention for wattage figures on rating plates?

As I understand it, for that motor running the fan in question, it'll draw maximum amps at switch-on, gradually decreasing as it is running up to speed, and once up to speed, will just draw a lower 'maintenance' current to maintain speed.

So does the rating plate state the maximum wattage, the steady-state power, or some kind of average?

Norman_Castle

^ The maximum load which is given to prevent overloading sockets. I've got a fan marked 45W which uses 25 watts. Hi Fi amps marked 200W which use 20-30 watts. My tv marked at 72W also states, Typical Power 40W. It uses 28 watts. My washing machine is marked 2200W but in use varies between 2200 watts to 5 watts. Items such as kettles and light bulbs tend to use their stated maximums but many other items are much lower.

There is normally a spike at switch on but this is very quick and wouldn't affect running costs.

My fridge is my most costly item to run, about £60 per year when I last worked it out. It uses about 120 watts when the compressor is running but it runs regularly, 365 days per year.

paddyrg

35W is nothing, a few years ago it wouldn't even light a desk. It's not an AC, and if this guy is an electrician he's dangerous.

27col

He's just trying it on!.

Mr.Generous

tell him to get a small wind turbine and put it up in front of the fan to generate the 1.21 gigawatts of electricity, sufficient to get him back to the time he studied at college to qualify as an electrician.