on whether how fast ramping a Rio Grande PMC kiln up to 1800F. or
2000 F. working temp-- achieve temp in one hour, three hours,
whatever??-- is done will have any effect (and if so, what??) on the
life of the kiln and the electronic controller unit over time.
The “PMC Kiln,” which is the Paragon SC 2 or 3 (depending on when it
was purchased) reaches 1650 in 15 minutes when run at ramp speed 5.
I’ve never taken it up to 1800 or more, so I don’t know how long,
but a bit longer. Certainly not three hours.
If you write or call Paragon, they could tell you.
I have been told by other kiln owners that running the kiln at ramp
speed 5 a lot will shorten its life – that it wears out the
My experience is consistent with that. I often run it at speed 5 in
workshops, and indeed, the refractory material is getting pitted a
bit. However, in short workshops, I have no choice.
My Paragon SC 2 is 9 years old and gets hard use – I drag it around
to workshops in the trunk, I wrap it in a blanket in the trunk, pack
it up still warm and wheel it around on a cart. It is holding up
beautifully to this. I would buy one again.
One of the reasons I would is that all the parts are available.
All that said, you may want to look into a different kiln with a
higher upper range, since I think it’s not good to run a kiln so
consistently at the top of its range. Again, call Paragon to ask
questions, and they have lots of how to videos on their site.