MJ on mon 15 nov 10
Hello - I am relatively new to firing and have a question about cost of
firing. I have found formulas to approximate the cost of the actual firing=
,
but there is no mention of preheat. Any ideas as to how to determine the
cost per hour of preheat? Thanks in advance. MJ
William & Susan Schran User on tue 16 nov 10
On 11/15/10 11:13 PM, "MJ" wrote:
> Hello - I am relatively new to firing and have a question about cost of
> firing. I have found formulas to approximate the cost of the actual firi=
ng,
> but there is no mention of preheat. Any ideas as to how to determine the
> cost per hour of preheat? Thanks in advance. MJ
I would think preheating would be at such low temperatures that cost would
be very low.
Having written that, IMHO, I find if one is allowing greenware to dry
properly, then preheating is just not necessary.
I also never preheat/candle our glaze firings in the school gas fired kiln.
Turned on low, temperature is about 700F - 800F in the first hour, never a
problem.
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
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