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OT: how quickly should a kettle turn off
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Gordon Freeman
Nov 5, 2016, 6:10:24 PM11/5/16
to
Just bought a new 3kw Breville kettle, currently on offer at £20 from
Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
a full 45 seconds before finally turning itself off. Did this twice with
the same result. Tried 1 litre of water, this boiled in 2 minutes and then
took another 30 seconds of rapid boiling before turning itself off. In each
case that means if left to its own devices it will use 25% more electricity
than it needs to!
OK so I can turn it off manually but the point of an automatic kettle is
that you shouldn't have to stand over it. I am wondering if I should return
it as faulty or whether such sluggish performance is considered acceptable?
My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
was slow to boil (only a 1800 W element) but would turn itself off in about
5-10 seconds once it reached the boil.
--
_______________________________________________________
Smash forehead against keyboard to continue
_______________________________________________________
Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
a full 45 seconds before finally turning itself off. Did this twice with
the same result. Tried 1 litre of water, this boiled in 2 minutes and then
took another 30 seconds of rapid boiling before turning itself off. In each
case that means if left to its own devices it will use 25% more electricity
than it needs to!
OK so I can turn it off manually but the point of an automatic kettle is
that you shouldn't have to stand over it. I am wondering if I should return
it as faulty or whether such sluggish performance is considered acceptable?
My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
was slow to boil (only a 1800 W element) but would turn itself off in about
5-10 seconds once it reached the boil.
--
_______________________________________________________
Smash forehead against keyboard to continue
_______________________________________________________
Bob Minchin
Nov 5, 2016, 6:21:26 PM11/5/16
to
Gordon Freeman wrote:
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
> a full 45 seconds before finally turning itself off. Did this twice with
> the same result. Tried 1 litre of water, this boiled in 2 minutes and then
> took another 30 seconds of rapid boiling before turning itself off. In each
> case that means if left to its own devices it will use 25% more electricity
> than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should return
> it as faulty or whether such sluggish performance is considered acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in about
> 5-10 seconds once it reached the boil.
>
>
>
My cheapy Asda Jug kettle lid has to be very firmly closed before the
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
> a full 45 seconds before finally turning itself off. Did this twice with
> the same result. Tried 1 litre of water, this boiled in 2 minutes and then
> took another 30 seconds of rapid boiling before turning itself off. In each
> case that means if left to its own devices it will use 25% more electricity
> than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should return
> it as faulty or whether such sluggish performance is considered acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in about
> 5-10 seconds once it reached the boil.
>
>
>
steam will trigger the off mechanism.
If this is not your problem I would class it as not fit for purpose and
exchange it.
bm
Nov 5, 2016, 8:35:53 PM11/5/16
to
"Bob Minchin" <bob.minc...@YOURHATntlworld.com> wrote in message
news:nvlm09$p8u$1...@dont-email.me...
Ours is ~10s but usually i'm on sentry duty so the prob never arises.
PeterC
Nov 6, 2016, 3:43:45 AM11/6/16
to
short out. Saw this in a cafe and told the ownere what it was. She didn't
have another kettle - bit risky in a cafe.
--
Peter.
The gods will stay away
whilst religions hold sway
Roger Hayter
Nov 6, 2016, 6:29:04 AM11/6/16
to
Gordon Freeman <Gor...@freeman.invalid> wrote:
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
> a full 45 seconds before finally turning itself off. Did this twice with
> the same result. Tried 1 litre of water, this boiled in 2 minutes and then
> took another 30 seconds of rapid boiling before turning itself off. In each
> case that means if left to its own devices it will use 25% more electricity
> than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should return
> it as faulty or whether such sluggish performance is considered acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in about
> 5-10 seconds once it reached the boil.
I had a couple of Breville kettles (traditional shape metal ones) which
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
> a full 45 seconds before finally turning itself off. Did this twice with
> the same result. Tried 1 litre of water, this boiled in 2 minutes and then
> took another 30 seconds of rapid boiling before turning itself off. In each
> case that means if left to its own devices it will use 25% more electricity
> than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should return
> it as faulty or whether such sluggish performance is considered acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in about
> 5-10 seconds once it reached the boil.
did the same. In fact one of them quite often completely failed to turn
off automatically. Fortunately they had quite high power elements and I
rarely boil more than a 500ml so it was not too inconvenient to watch
them. I would guess it is a design fault.
--
Roger Hayter
bm
Nov 6, 2016, 6:34:36 AM11/6/16
to
"pamela" <inv...@nospam.com> wrote in message
news:XnsA6B85C6...@81.171.118.178...
> On 00:35 6 Nov 2016, bm wrote:
>
>>
>> "Bob Minchin" <bob.minc...@YOURHATntlworld.com> wrote in
>> message news:nvlm09$p8u$1...@dont-email.me...
>>> Gordon Freeman wrote:
>>>> Just bought a new 3kw Breville kettle, currently on offer at
>>>> Ł20 from Sainburys. Trying it out with the max 1.7 L water, it
>
>>
>> "Bob Minchin" <bob.minc...@YOURHATntlworld.com> wrote in
>> message news:nvlm09$p8u$1...@dont-email.me...
>>> Gordon Freeman wrote:
>>>> Just bought a new 3kw Breville kettle, currently on offer at
>>>> boiled like crazy for
>>>> a full 45 seconds before finally turning itself off. Did this
>>>> twice with the same result. Tried 1 litre of water, this
>>>> boiled in 2 minutes and then
>>>> took another 30 seconds of rapid boiling before turning itself
>>>> off. In each
>>>> case that means if left to its own devices it will use 25%
>>>> more electricity
>>>> than it needs to!
>>>>
>>>> OK so I can turn it off manually but the point of an automatic
>>>> kettle is that you shouldn't have to stand over it. I am
>>>> wondering if I should return
>>>> it as faulty or whether such sluggish performance is
>>>> considered acceptable?
>>>>
>>>> My recently deceased Wilko kettle, a plastic jobbie that cost
>>>> about Ł3.99,
>>>> a full 45 seconds before finally turning itself off. Did this
>>>> twice with the same result. Tried 1 litre of water, this
>>>> boiled in 2 minutes and then
>>>> took another 30 seconds of rapid boiling before turning itself
>>>> off. In each
>>>> case that means if left to its own devices it will use 25%
>>>> more electricity
>>>> than it needs to!
>>>>
>>>> OK so I can turn it off manually but the point of an automatic
>>>> kettle is that you shouldn't have to stand over it. I am
>>>> wondering if I should return
>>>> it as faulty or whether such sluggish performance is
>>>> considered acceptable?
>>>>
>>>> My recently deceased Wilko kettle, a plastic jobbie that cost
>>>> was slow to boil (only a 1800 W element) but would turn itself
>>>> off in about
>>>> 5-10 seconds once it reached the boil.
>>>>
>>>>
>>>>
>>> My cheapy Asda Jug kettle lid has to be very firmly closed
>>> before the steam will trigger the off mechanism.
>>> If this is not your problem I would class it as not fit for
>>> purpose and exchange it.
>>
>> Yep, 45s is way too much.
>> Ours is ~10s but usually i'm on sentry duty so the prob never
>> arises.
>
> Out of interest, what are you sentry-ing?
>>>> off in about
>>>> 5-10 seconds once it reached the boil.
>>>>
>>>>
>>>>
>>> My cheapy Asda Jug kettle lid has to be very firmly closed
>>> before the steam will trigger the off mechanism.
>>> If this is not your problem I would class it as not fit for
>>> purpose and exchange it.
>>
>> Yep, 45s is way too much.
>> Ours is ~10s but usually i'm on sentry duty so the prob never
>> arises.
>
The kettle. Otherwise SWMBO might well switch it off early.
Who knows with females? ;)
Gordon Freeman
Nov 6, 2016, 8:24:42 AM11/6/16
to
>> Just bought a new 3kw Breville kettle, currently on offer at Ł20 from
suggested by Bob Minchin. I can't see how it could be made to fit any
tighter though the way it is designed, there is nothing to hold it
firmly in place. The whole thing seems to have an oddly complicated
design, I think I'll just return it for a refund and get a different
make kettle.
Kettles should be simple devices but Breville seem to be trying to make
them into something highbrow. Even the box exhorts you to "get creative"
with your kettle, with a list of hot drinks you might like to try!
--
_______________________________________________________
Smash forehead on keyboard to continue
_______________________________________________________
>> Sainburys. Trying it out with the max 1.7 L water, it boiled like
>> crazy for a full 45 seconds before finally turning itself off. Did
>> this twice with the same result. Tried 1 litre of water, this boiled
>> in 2 minutes and then took another 30 seconds of rapid boiling before
>> turning itself off. In each case that means if left to its own
>> devices it will use 25% more electricity than it needs to!
>>
>
>> crazy for a full 45 seconds before finally turning itself off. Did
>> this twice with the same result. Tried 1 litre of water, this boiled
>> in 2 minutes and then took another 30 seconds of rapid boiling before
>> turning itself off. In each case that means if left to its own
>> devices it will use 25% more electricity than it needs to!
>>
>
> I had a couple of Breville kettles (traditional shape metal ones)
> which did the same. In fact one of them quite often completely failed
> to turn off automatically. Fortunately they had quite high power
> elements and I rarely boil more than a 500ml so it was not too
> inconvenient to watch them. I would guess it is a design fault.
Yes the lid is rather loose fitting so I think that is the problem as
> which did the same. In fact one of them quite often completely failed
> to turn off automatically. Fortunately they had quite high power
> elements and I rarely boil more than a 500ml so it was not too
> inconvenient to watch them. I would guess it is a design fault.
suggested by Bob Minchin. I can't see how it could be made to fit any
tighter though the way it is designed, there is nothing to hold it
firmly in place. The whole thing seems to have an oddly complicated
design, I think I'll just return it for a refund and get a different
make kettle.
Kettles should be simple devices but Breville seem to be trying to make
them into something highbrow. Even the box exhorts you to "get creative"
with your kettle, with a list of hot drinks you might like to try!
--
_______________________________________________________
Smash forehead on keyboard to continue
_______________________________________________________
Moron Watch
Nov 6, 2016, 10:56:52 AM11/6/16
to
news:XnsA6B89B8...@81.171.118.178...
> I had an electric kettle which switched off late and luckily could
> reposition the thermocouple visible behind a vent grating at the
> top of the kettle to place it more squarely in the rising steam.
>
> It improved a bit but not a huge amount and I wonder if the
> thermocouple was slightly out of spec. Quality control on a
> bargain kettle is probably not the greatest.
I had a Tesco kettle (Ł3-4 ish IIRR) where the element actually
appeared to catch fire while under water - there was a red flame
clearly visible through the plastic window. Its similarly priced
replacement is so far holding up o.k.
> reposition the thermocouple visible behind a vent grating at the
> top of the kettle to place it more squarely in the rising steam.
>
> It improved a bit but not a huge amount and I wonder if the
> thermocouple was slightly out of spec. Quality control on a
> bargain kettle is probably not the greatest.
I had a Tesco kettle (Ł3-4 ish IIRR) where the element actually
appeared to catch fire while under water - there was a red flame
clearly visible through the plastic window. Its similarly priced
replacement is so far holding up o.k.
bm
Nov 6, 2016, 11:00:36 AM11/6/16
to
"Moron Watch" <moron...@cocast.net> wrote in message
news:nvnjr6$6ah$1...@dont-email.me...
>
> "pamela" <inv...@nospam.com> wrote in message
> news:XnsA6B89B8...@81.171.118.178...
>> On 13:24 6 Nov 2016, Gordon Freeman wrote:
>>
>>> ro...@hayter.org (Roger Hayter) wrote:
>>>
>>>> Gordon Freeman <Gor...@freeman.invalid> wrote:
>>>>
>>>>> Just bought a new 3kw Breville kettle, currently on offer at
>>>>> £20 from Sainburys. Trying it out with the max 1.7 L water, it
> "pamela" <inv...@nospam.com> wrote in message
> news:XnsA6B89B8...@81.171.118.178...
>> On 13:24 6 Nov 2016, Gordon Freeman wrote:
>>
>>> ro...@hayter.org (Roger Hayter) wrote:
>>>
>>>> Gordon Freeman <Gor...@freeman.invalid> wrote:
>>>>
>>>>> Just bought a new 3kw Breville kettle, currently on offer at
> appeared to catch fire while under water - there was a red flame
> clearly visible through the plastic window. Its similarly priced
> replacement is so far holding up o.k.
Blimey, an expensive one, heads should roll.
> clearly visible through the plastic window. Its similarly priced
> replacement is so far holding up o.k.
Johnny B Good
Nov 6, 2016, 12:21:50 PM11/6/16
to
On Sat, 05 Nov 2016 22:09:55 +0000, Gordon Freeman wrote:
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy
> for a full 45 seconds before finally turning itself off. Did this twice
> with the same result. Tried 1 litre of water, this boiled in 2 minutes
> and then took another 30 seconds of rapid boiling before turning itself
> off. In each case that means if left to its own devices it will use 25%
> more electricity than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should
> return it as faulty or whether such sluggish performance is considered
> acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about
> £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in
> about 5-10 seconds once it reached the boil.
We have a 3KW plastic jug kettle (ca 12 quid from Argos to replace an
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy
> for a full 45 seconds before finally turning itself off. Did this twice
> with the same result. Tried 1 litre of water, this boiled in 2 minutes
> and then took another 30 seconds of rapid boiling before turning itself
> off. In each case that means if left to its own devices it will use 25%
> more electricity than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should
> return it as faulty or whether such sluggish performance is considered
> acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about
> £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in
> about 5-10 seconds once it reached the boil.
almost identical Tesco kettle) which, if allowed to boil until the sensor
shuts it off as a safety/courtesy would take anywhere from 5 to 10
seconds with ca 700ml fill (which is an unconscionably long time - it's
bad enough to wait for a 3KW kettle to boil even 700mL but the final
denouement of boiling until the safety/courtesy feature kicks in has all
the ear marks of a car crash in slow motion).
If you're boiling half to one litre of water with a 3KW kettle, the
chances are high that you will still be present to shut it off the moment
it comes to the boil rather than stand there like a lemon and let it
waste energy on a job already done. IOW, just regard the automatic shut
off when the water is on the boil as a safety/courtesy feature that you
can (and should) pre-empt unless you're otherwise pre-occupied (rinsing
the pot and or tea mug out or have had to answer the front door bell or
whatever).
With a modern jug kettle, that just means lifting it off its docking
base to pour the boiling water. Lifting a boiling jug kettle off its
docking base allows the interlock pin to trip the same switch/boiling
sensor stat just before it disconnects from the base, saving electrical
erosion on the base connector contacts.
I take full advantage of this particular safety/convenience feature,
only using the actual switch lever when I know I'm not going to have the
other tea making tasks completed in a timely fashion to leave it a few
degrees short of the boiling point and only a few seconds away from going
on the boil when I switch it back on, thus minimising energy wasted in
steaming up the kitchen.
Whenever you're commissioning a new kettle (the instructions always
advise you to boil at least two lots of water before using it for actual
tea brewing/instant coffee or whatever), you can verify the efficacy of
this anti-boil dry/convenience feature for future peace of mind. I
suppose as long as it cuts off a full kettle's worth in less than a
minute, that's the safety aspect covered even if it isn't exactly what
you'd call a 'convenience feature'.
I'm not sure whether this is typical but, ime, the anti-boil dry cut out
sensing time seems to get shorter with use becoming more of a convenience
than a safety feature so that 45 seconds interval may well drop down to
the 10 to 15 seconds mark after a few months use anyway. However, you may
want to keep tabs on this time delay to make sure it isn't getting
gradually longer and longer to cut off the boiling kettle rather than
getting shorter and shorter over the next week or three's worth of use.
45 seconds *does* seem rather a long time but it's been over a year
since I last had reason to allow a full 1.7 litre's worth to come to the
boil and allow it to rely on the automatic shut off feature so I'm afraid
I can't offer you any comparative times other than for the 700mL case.
--
Johnny B Good
Rod Speed
Nov 6, 2016, 1:33:14 PM11/6/16
to
"Gordon Freeman" <Gor...@freeman.invalid> wrote in message
news:XnsA6B888...@127.0.0.1...
>>> Just bought a new 3kw Breville kettle, currently on offer at £20 from
>>> Sainburys. Trying it out with the max 1.7 L water, it boiled like
>>> crazy for a full 45 seconds before finally turning itself off. Did
>>> this twice with the same result. Tried 1 litre of water, this boiled
>>> in 2 minutes and then took another 30 seconds of rapid boiling before
>>> turning itself off. In each case that means if left to its own
>>> devices it will use 25% more electricity than it needs to!
>>>
>>
>> I had a couple of Breville kettles (traditional shape metal ones)
>> which did the same. In fact one of them quite often completely failed
>> to turn off automatically. Fortunately they had quite high power
>> elements and I rarely boil more than a 500ml so it was not too
>> inconvenient to watch them. I would guess it is a design fault.
>
> Yes the lid is rather loose fitting so I think that is the problem as
> suggested by Bob Minchin. I can't see how it could be made to fit any
> tighter though the way it is designed, there is nothing to hold it
> firmly in place. The whole thing seems to have an oddly complicated
> design, I think I'll just return it for a refund and get a different
> make kettle.
>
> Kettles should be simple devices but Breville seem
> to be trying to make them into something highbrow.
There is certainly so someone in that operation that is
>>> crazy for a full 45 seconds before finally turning itself off. Did
>>> this twice with the same result. Tried 1 litre of water, this boiled
>>> in 2 minutes and then took another 30 seconds of rapid boiling before
>>> turning itself off. In each case that means if left to its own
>>> devices it will use 25% more electricity than it needs to!
>>>
>>
>> I had a couple of Breville kettles (traditional shape metal ones)
>> which did the same. In fact one of them quite often completely failed
>> to turn off automatically. Fortunately they had quite high power
>> elements and I rarely boil more than a 500ml so it was not too
>> inconvenient to watch them. I would guess it is a design fault.
>
> Yes the lid is rather loose fitting so I think that is the problem as
> suggested by Bob Minchin. I can't see how it could be made to fit any
> tighter though the way it is designed, there is nothing to hold it
> firmly in place. The whole thing seems to have an oddly complicated
> design, I think I'll just return it for a refund and get a different
> make kettle.
>
> Kettles should be simple devices but Breville seem
> to be trying to make them into something highbrow.
into that sort of thing. They have a fancy toaster that
allows you to have a look at how the toast is going
and to tell the toaster that it needs a bit more toasting.
Stupidly expensive for a toaster IMO. I've been
watching for one at the garage/boot sales to
have a play with one but havent seen one yet.
I have gone thru a few of their toasters that I have got
at garage/boot sales and while I do like the very wide
slots and decent lift mechanism that does work pretty
well even with very thick toast, havent been impressed
by the fact that they don’t seem to be able to manage
a very even toasting.
I do have a couple of the vertical plastic Breville jugs
and they don’t have the slow boiling detection problem
but the lids arent that well designed, they don’t open
all that conveniently.
Rod Speed
Nov 6, 2016, 3:00:20 PM11/6/16
to
"Johnny B Good" <johnny...@invalid.ntlworld.com> wrote in message
news:MEJTz.278226$PG2.1...@fx06.am4...
with any of the plastic vertical jugs cutting off quickly and automatically.
Two of them are Brevilles and there are a couple of other brands too that
also work fine, automatically cutoff in seconds.
whisky-dave
Nov 7, 2016, 6:20:25 AM11/7/16
to
On Saturday, 5 November 2016 22:10:24 UTC, Gordon Freeman wrote:
I remeber some on here were claiming that electric kettle were close if not 100%
efficient.
I remeber some on here were claiming that electric kettle were close if not 100%
efficient.
Rod Speed
Nov 7, 2016, 12:30:46 PM11/7/16
to
whisky-dave <whisk...@gmail.com> wrote
when the water is boiling and are well insulated.
> Gordon Freeman wrote
> I remeber some on here were claiming that
> electric kettle were close if not 100% efficient.
They obviously can be if they reliably detect
> I remeber some on here were claiming that
> electric kettle were close if not 100% efficient.
when the water is boiling and are well insulated.
Gordon Freeman
Nov 7, 2016, 2:47:05 PM11/7/16
to
whisky-dave <whisk...@gmail.com> wrote:
> I remeber some on here were claiming that electric kettle were close
> if not 100% efficient.
Traditional ones should be virtually 100% efficient since the heating
> I remeber some on here were claiming that electric kettle were close
> if not 100% efficient.
element is immersed in water so there's nowhere else for the heat to go.
However I'm not so sure about the modern design where the element is
under the base of the kettle (or actually *is* the base of the kettle? -
I'm not quite sure how those work not having opened one up), since the
some heat will surely be radiated downwards.
--
_______________________________________________________
Never stick your head in a bag full of angry squirrels.
_______________________________________________________
charles
Nov 7, 2016, 3:58:00 PM11/7/16
to
In article <XnsA6B9C94...@127.0.0.1>,
wedding presents in 1939.
--
from KT24 in Surrey, England
Gordon Freeman <Gor...@freeman.invalid> wrote:
> whisky-dave <whisk...@gmail.com> wrote:
> > I remeber some on here were claiming that electric kettle were close
> > if not 100% efficient.
> Traditional ones should be virtually 100% efficient since the heating
> element is immersed in water so there's nowhere else for the heat to go.
> However I'm not so sure about the modern design where the element is
> under the base of the kettle (or actually *is* the base of the kettle? -
> I'm not quite sure how those work not having opened one up), since the
> some heat will surely be radiated downwards.
Hardly a "modern" design. My parents had kettles like that given to them as
> whisky-dave <whisk...@gmail.com> wrote:
> > I remeber some on here were claiming that electric kettle were close
> > if not 100% efficient.
> Traditional ones should be virtually 100% efficient since the heating
> element is immersed in water so there's nowhere else for the heat to go.
> However I'm not so sure about the modern design where the element is
> under the base of the kettle (or actually *is* the base of the kettle? -
> I'm not quite sure how those work not having opened one up), since the
> some heat will surely be radiated downwards.
wedding presents in 1939.
--
from KT24 in Surrey, England
whisky-dave
Nov 8, 2016, 6:40:25 AM11/8/16
to
My brevil took about 10-15 seconds so that was a small waste.
Next time you use a kettle pour the water out, then if the kettel; is still warm that's wasted energy that's not gone in to heating the water.
whisky-dave
Nov 8, 2016, 6:43:55 AM11/8/16
to
On Monday, 7 November 2016 19:47:05 UTC, Gordon Freeman wrote:
> whisky-dave <whisk...@gmail.com> wrote:
>
> > I remeber some on here were claiming that electric kettle were close
> > if not 100% efficient.
>
>
> Traditional ones should be virtually 100% efficient since the heating
> element is immersed in water so there's nowhere else for the heat to go.
Why heat the element up all you really want is the water heated,
> whisky-dave <whisk...@gmail.com> wrote:
>
> > I remeber some on here were claiming that electric kettle were close
> > if not 100% efficient.
>
>
> Traditional ones should be virtually 100% efficient since the heating
> element is immersed in water so there's nowhere else for the heat to go.
why heat the kettle up when you really only want the water hot.
Dan S. MacAbre
Nov 8, 2016, 6:51:20 AM11/8/16
to
Gordon Freeman wrote:
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
> a full 45 seconds before finally turning itself off. Did this twice with
> the same result. Tried 1 litre of water, this boiled in 2 minutes and then
> took another 30 seconds of rapid boiling before turning itself off. In each
> case that means if left to its own devices it will use 25% more electricity
> than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should return
> it as faulty or whether such sluggish performance is considered acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in about
> 5-10 seconds once it reached the boil.
>
Our kettle (like all others, I suspect) has/had a mesh filter in the
> Just bought a new 3kw Breville kettle, currently on offer at £20 from
> Sainburys. Trying it out with the max 1.7 L water, it boiled like crazy for
> a full 45 seconds before finally turning itself off. Did this twice with
> the same result. Tried 1 litre of water, this boiled in 2 minutes and then
> took another 30 seconds of rapid boiling before turning itself off. In each
> case that means if left to its own devices it will use 25% more electricity
> than it needs to!
>
> OK so I can turn it off manually but the point of an automatic kettle is
> that you shouldn't have to stand over it. I am wondering if I should return
> it as faulty or whether such sluggish performance is considered acceptable?
>
> My recently deceased Wilko kettle, a plastic jobbie that cost about £3.99,
> was slow to boil (only a 1800 W element) but would turn itself off in about
> 5-10 seconds once it reached the boil.
>
spout. It recently started crumbling, so I took it out. Now the kettle
takes a lot longer to switch off, and I suppose it's because more of the
steam is escaping via the spout, and less is being directed into
whichever mechanism detects it.
Rod Speed
Nov 8, 2016, 12:24:23 PM11/8/16
to
whisky-dave <whisk...@gmail.com> wrote
And it isnt before the water its with the water with the kettle.
> My brevil took about 10-15 seconds so that was a small waste.
Mine don’t take anything like that long to switch off.
> Next time you use a kettle pour the water out, then if the kettel; is
> still
> warm that's wasted energy that's not gone in to heating the water.
Still fuck all with a plastic kettle.
> Rod Speed wrote
>> whisky-dave <whisk...@gmail.com> wrote
>>> Gordon Freeman wrote
>>> I remeber some on here were claiming that
>>> electric kettle were close if not 100% efficient.
>> They obviously can be if they reliably detect
>> when the water is boiling and are well insulated.
> They still can;t be as they need to warm up
> the element and the kettle before the water.
My comment was on your CLOSE TO.
>> whisky-dave <whisk...@gmail.com> wrote
>>> Gordon Freeman wrote
>>> I remeber some on here were claiming that
>>> electric kettle were close if not 100% efficient.
>> They obviously can be if they reliably detect
>> when the water is boiling and are well insulated.
> They still can;t be as they need to warm up
> the element and the kettle before the water.
And it isnt before the water its with the water with the kettle.
> My brevil took about 10-15 seconds so that was a small waste.
> Next time you use a kettle pour the water out, then if the kettel; is
> still
> warm that's wasted energy that's not gone in to heating the water.
Gordon Freeman
Nov 9, 2016, 4:03:06 PM11/9/16
to
whisky-dave <whisk...@gmail.com> wrote:
>
> Why heat the element up all you really want is the water heated,
> why heat the kettle up when you really only want the water hot.
This is the prioblem that microwaves were supposed to address, but even if
>
> Why heat the element up all you really want is the water heated,
> why heat the kettle up when you really only want the water hot.
microwaves only heat the water and not the container, the question remains
as to how efficiently the electricity gets turned into microwave energy by
the magnetron and I don't know the answer to that.
--
_______________________________________________________
A journey of a thousand miles begins with a cash advance.
_______________________________________________________
dennis@home
Nov 10, 2016, 4:22:49 AM11/10/16
to
On 09/11/2016 21:02, Gordon Freeman wrote:
> whisky-dave <whisk...@gmail.com> wrote:
>>
>> Why heat the element up all you really want is the water heated,
>> why heat the kettle up when you really only want the water hot.
>
> This is the prioblem that microwaves were supposed to address, but even if
> microwaves only heat the water and not the container, the question remains
> as to how efficiently the electricity gets turned into microwave energy by
> the magnetron and I don't know the answer to that.
>
Given how much cooling the magnetron needs about 50%.
> whisky-dave <whisk...@gmail.com> wrote:
>>
>> Why heat the element up all you really want is the water heated,
>> why heat the kettle up when you really only want the water hot.
>
> This is the prioblem that microwaves were supposed to address, but even if
> microwaves only heat the water and not the container, the question remains
> as to how efficiently the electricity gets turned into microwave energy by
> the magnetron and I don't know the answer to that.
>
whisky-dave
Nov 10, 2016, 6:13:16 AM11/10/16
to
On Wednesday, 9 November 2016 21:03:06 UTC, Gordon Freeman wrote:
> whisky-dave <whisk...@gmail.com> wrote:
> >
> > Why heat the element up all you really want is the water heated,
> > why heat the kettle up when you really only want the water hot.
>
> This is the prioblem that microwaves were supposed to address, but even if
> microwaves only heat the water and not the container, the question remains
> as to how efficiently the electricity gets turned into microwave energy by
> the magnetron and I don't know the answer to that.
There's also the problem that microwaves aren't realy directable in an oven so not all of them 'enter' the food so are wasted.
> whisky-dave <whisk...@gmail.com> wrote:
> >
> > Why heat the element up all you really want is the water heated,
> > why heat the kettle up when you really only want the water hot.
>
> This is the prioblem that microwaves were supposed to address, but even if
> microwaves only heat the water and not the container, the question remains
> as to how efficiently the electricity gets turned into microwave energy by
> the magnetron and I don't know the answer to that.
I did check mine out once you can do this by putting a few 100ml of water in a container and measuring the temperature rise of teh water after say 2 mins
can;t remmebr the calculation but you end up with gettign a fugure of wattage for yuor oven my 650W came out at about 400W but it was an old oven so I wasn't too suprised.
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