[Clayart] dampers and flues

John Hesselberth jjhesselberth at gmail.com
Tue Jul 25 06:12:05 EDT 2017

Robert is right on here. In fact any business person who does not understand the full cost of their products will soon be “belly-up”. I suspect it is one of the primary reasons for business failure—and that includes potters and potteries. And don’t forget a fair wage for yourself  and things like insurance in your cost calculations. It is not just equipment and materials.



> On Jul 24, 2017, at 6:05 PM, Robert Harris <robertgharris at gmail.com> wrote:
> My biggest object to "My kiln fires for the cost of a mug", is that this
> does not adhere to most rules of accounting and economincs.
> When calculating the cost of a kiln you need to include
> depreciation/amortization. In our guild we charge people not just for the
> natural gas, but also for the projected cost of replacing/rebuilding the
> kiln. For example our kiln has been rebuilt once, and needs to be replaced
> within the next five years. The bricks are 30+ years old, and simple can't
> be reused any longer.
> I'd guess that the kiln has been fired 350+ times. But the current cost for
> a replacement is approaching $20,000. This doesn't include the cost of the
> rebuild about 15 years ago, nor periodic maintenance nor new kiln shelves
> or posts (even the most careful person breaks one every so often). Should
> we include cones in the cost, replacing thermocouples etc ... etc ... We
> estimate it costs well over a hundred dollars to fire a kiln (about the
> same size as yours) when you include replacement value. And to not include
> it, (particularly in the context of a guild/co-op setting) is at best
> disingenuous, if not dishonest (if you were a public company you would be
> breaking SEC regulations ;) ).
> Robert

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