[Stoves] GLASS for stoves .

[lh cheng]

TLUD stove is useless inside house, every housewife should avoid it like
avoid a bomb, and making char with cooking stove is a joke. It will never
spread.
maybe I will explain it later. It is very clear to me.

Happy holiday every dear stover

2017-12-25 10:11 GMT+08:00 lh cheng <lhkind at gmail.com>:

> Dear Crispin,
> that is a minor problem, I know the answer. thank you for your
> introduction about Franklin stove, I am a little surprised by this man, and
> curious about this stove.
>
> 2017-12-25 10:03 GMT+08:00 Crispin Pemberton-Pigott <
> crispinpigott at outlook.com>:
>
>> Dear LH
>>
>> That is the theory, but like aluminum, if the processing involves a huge
>> amount of energy, ‎you are buying energy with a little glass thrown in.
>>
>> Even expensive material is really the cost of the energy needed to get
>> it. Unless there is a patent. Good cancer medicine is $350 per pill. One
>> per day for five year$.
>>
>> Regards
>> Crispin
>> *From: *lh cheng
>> *Sent: *Sunday, December 24, 2017 20:40
>> *To: *Discussion of biomass cooking stoves
>> *Reply To: *Discussion of biomass cooking stoves
>> *Subject: *Re: [Stoves] GLASS for stoves .
>>
>> the free material won't change the downside price trend if widely used.
>> on the contrary, it speed up that trend. because widely using make price
>> nearer to marginal cost, which is near zero, when the material is free.
>> Every HI-Tech product have the same trend, like CPU, cell phone, mainly
>> made from sand. Because the number of users diluted the initial R&D and
>> equipment investment, which is the main cost.
>>
>> 2017-12-24 18:02 GMT+08:00 Andrew Heggie <aj.heggie at gmail.com>:
>>
>>>
>>>
>>> On 24 December 2017 at 01:51, Crispin Pemberton-Pigott <
>>> crispinpigott at outlook.com> wrote:
>>>
>>>> I
>>>> Shoes in North America and Europe often have a large glass front window
>>>> because fires are social. 'firelight' and all that.
>>>>
>>>
>>> Yes that's my feeling too
>>>
>>>>
>>>> In Africa people are nervous and uncomfortable if they have a stove
>>>> without a visible fire. In Namibia we had to ensure the cooking stove had a
>>>> visible fire or the San people wouldn't use it.
>>>>
>>>
>>> They won't be keen on electric cooking then?
>>>
>>>
>>>> The cost of the glass is in the preparation and production. The
>>>> materials are nearly free so I think the cost will remain high. Unless
>>>> there is a miracle formulation.
>>>>
>>>
>>> I'd guess this is so, normal glass is  just silica sand and a bit of
>>> lime to decrease the fusion temperature.
>>>
>>> Borosilicate glass, Pyrex brand here in UK , has a much higher melting
>>> point so more expensive, also lower coefficient of expansion, so shock
>>> heating or cooling don't build up internal stress.
>>>
>>> I don't know what ceramic glass is nor why ordinary glass is not
>>> considered a ceramic.
>>>
>>>>
>>>>
>>>>
>>>
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>>
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>
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