On 4 Jul, 22:59, Spurious Response
wrote:
On Wed, 04 Jul 2007 11:05:44 +0100, "Dave Plowman (News)"
wrote:
A 1000 watt kettle would take forever to boil. UK ones are normally
2500/3000 watts.

If you paid California electric rates, you wouldn't use it very many
times a year.

It must be nice to be able to build everything higher output, more
consumptive. We have to conserve here. Miniaturize.

Wrong way round. A 3kW kettle takes less energy to boil a given amount
of water, not more. The energy required to heat the water (and nothing
else) is the same regardless of power, but the heat losses are larger
with a 1kW kettle, since it takes apx 3x as long, losing about 3x as
much heat to the air.


NT