"Ophelia" > wrote in message
...
>
>
> "isw" > wrote in message
> ...
>> In article >,
>> "Ophelia" > wrote:
>>
>>> "dsi1" > wrote in message
>>> ...
>>> > On Sunday, November 9, 2014 7:51:30 PM UTC-10, isw wrote:
>>> >> In article >, pltrgyst >
>>> >> wrote:
>>> >>
>>> >> > On 11/8/14, 1:35 PM, wrote:
>>> >> > > On Saturday, November 8, 2014 11:07:34 AM UTC-5, pltrgyst wrote:
>>> >> > >> As Boron said, avoid the older pieces with the smoke rings,
>>> >> > >> intended
>>> >> > >> for
>>> >> > >> use on gas burners,
>>> >> > >
>>> >> > > OK, I have to ask, why? As long as the cast iron is close enough
>>> >> > > to
>>> >> > > the
>>> >> > > surface to have the magnetic field induce eddy currents it should
>>> >> > > work....
>>> >>
>>> >> What you want to do is not just have *some* induction, but to
>>> >> maximize
>>> >> it.
>>> >>
>>> >> > From Wikipedia: "Cookware must have a flat bottom since the
>>> >> > magnetic
>>> >> > field drops rapidly with distance from the surface."
>>> >> >
>>> >> > It's an inverse square relationship.
>>> >>
>>> >> I'm pretty sure it's an inverse cube relation (theoretically, which
>>> >> real-world devices rarely are), which makes minimizing the spacing
>>> >> even
>>> >> more important.
>>> >>
>>> >> Isaac
>>> >
>>> > In the real world, the raised rim on the bottom of my cast iron fry
>>> > pan
>>> > causes no problems. In fact, I like the idea of the bottom of the pan
>>> > having an air gap between it and the glass surface. There's less heat
>>> > transferred back to the glass.
>>>
>>> Would this help those who have problems with their pans not making full
>>> contact with the hob:
>>>
>>> 'Induction hob converter'
>>>
>>> http://www.coopersofstortford.co.uk/...nduction-hob-c
>>> onverter-prodst09262i/?gclid=CIyZlI_q78ECFarKtAod4VcA_w
>>
>> It turns a highly efficient induction unit into an ordinary "pan on a
>> hot metal plate" cooker. What's the point of that? Why not just use the
>> regular cooktop?
>
> It doesn't turn the hob into a regular cook top! How in the world can it
> do that??? What it does is to allow you to use your regular pans on the
> induction hob!

Well there you go, Isaac) Did you read Sheila's comment? You were
correct after all) Who knew?


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