This is everything needed to make the auto temperature and pressure controlled furnace.

If you set the dial to 0, the Auto control will not work, and the furnace will just continue to cool down and not replenish fuel or vent off.. If you leave it set to 1-5 it will continually attempt to reach and maintain that ingots setpoints. Turning the dial to 6 will disable auto control and will cool and vent the furnace to your piping network.. I have mine going to a cooling tower to lower the temperature before hitting my filtration system.
I also keep my gasses pretty cool, so the flushing to drop the temp is a set temperature that can be changed in the code. Please see the flush: section in the Auto fill and flush IC chip code to change temp and pressure if needed.
I have Gas Mixer set to 70/30 for the H2/O2 ratio feeding the furnace. H2 is set to 70L.
N2 Volume pump set to 30L
Outlet Volume Pump from furnace set to 60L

Please see this album, for piping to the furnance.
https://imgur.com/a/cscJmdP


Changelog: 10/21/2018
Added Auto ingot ejection to alloys


Want to see it in action: go here:

https://www.youtube.com/watch?v=hjIJsR-H60I

Thanks to Saddamo De Beers for the upload on this!