What temperature are you wanting to reach? If you just want to get to
about 2100 deg F a NeyTech furnace will work. Otherwise you will be
spending over $3000 to get to any temperature between 2100 and 3000
deg F. This element will not last more than a year running at this
temperature. So if you go with this oven you will have to accept this
additional cost and work it into your pricing.
I have a customer in Helena, MT that is doing this and he is using a
NeyTech furnace with a digital controller that I installed. It is
working but the limitation is the heating element. In order to get a
higher temperature an exotic heating element needs to be used and
they are much more expensive and fragile.
I can give you more info as far as ovens that reach the higher
temperatures if you are interested. Contact me off the list either by
email or toll free at 1-877-262-2185.