Sheldon said:Pete C. said:Tracy wrote:
Quoted message said:Quoted message said:I saw in the small appliances thread that some use an electric kettle
instead of the traditional stove top type. �Just wondering whyyou
prefer the electric version. �I am thinking of getting one myself.
Brand recommendations?
Quoted message said:Quoted message said:Tracy
(who has gone through more stove top kettles than she can count on both
hands....)
Quoted message said:In the UK where they can get 3,800 Watts + from their 240V outlets, the
countertop electric kettles are popular. The US versions which can only
get 1,800 Watts from the 120V outlets aren't nearly as useful.
That just means that the US kettles are far more efficient. Â You don't
"get" watts... watts is energy *consumed*, not energy produced.
The old UK klunker kettles were made of metal, a fairly large mass of
thick metal... most of those 3,800 watts were consumed to heat the
kettle, not the water contained therein... why would any normal
brained person want to also heat three pounds of steel when all they
want to heat is one cup water. Â The new modern plastic kettles consume
half as many watts to heat twice as much water in half the time. Â I
don't know about yoose but I don't want to spend my money to heat
pots. Â When I buy small electrical appliances I look for those that
can do the job with the lowest wattage rating. Â The UK doesn't make
those old high wattage consuming klunker kettles anymore... those
things consumed all those watts because they were poorly designed,
they couldn't heat small quantites of water like one or two cups
efficiently, you had to fill the entire pot to fully submerge the
heater element, so naturally they consumed 3,800 watts because they
had to heat like 2 quarts of water in order to fully submerge the
heating element to function at their best efficiency. Â Those old
klunkers were not fast all, they needed like 3-4 minutes to boil one
cup of water. Â The new modern plastic units boil one cup of water in
one minute and very efficiently... the 1,500 watt rating is only for
boiling a full pot, one cup probabvly consumes less than 200 watts.
Sheldon
Btw, I didn't want to confuse so I didn't mention that the wattage
rating for appliances is *watts per hour* (like a 100W light bulb
consumes 100 watts per hour), therefore with a 1,500 watt kettle if
one cup of water is heated to boiling in one minute then the wattage
consumption to boil one cup of water is probably in the neighborhood
of 10-12 watts, costs less than a penny. The 1,500 watt rating is
what that pot consumes running for a full hour... for most families
that's a full month's worth of boiling water. I think some are
beginning to fathom how a kettle with a 3,800 watt rating will cost a
lot more to operate.
Now for pure resistance appliances like with light bulbs and water
heaters wattage ratings make sense. But for motorized appliances like
stand mixers wattage *consumption* means very little in relation to
power *produced*... folks who are impressed with higher wattage
ratings with motorized appliances like stand mixers are blithering
imbeciles. Those wattage ratings mean one thing and one thing only,
how many watts are consumed running full out for one hour, has
practically nothing to do with how much shaft horsepower is produced,
in fact a higher wattage rating for a larger stand mixer can very well
mean less usable power produced, could well mean higher rpm, lots more
heat, and less power produced, because the larger diameter bowl
necessitates larger diamerter beaters that mean the moment of force
during motion consumes more available power that does absolutely
nothing to cause the machine to mix better but will raise the electric
bill. When motorized appliances have no horsepower rating (typically
those without a transmission) then the wattage rating only means how
much it costs to operate, not a whit to do with shaft horsepower
produced... much of that higher wattage goes right up the chimney as
heat. And that's what occurs with the old fashioned higher wattage
kettles, much of the wattage goes to heat the pot.
Don't ever buy a kettle by higher wattage rating, time needed for
heating water is all that's important, with all being equal chose the
kettle with the lowest wattage rating.
Sheldon