Source: http://jumbofiles.com/aee4fp5ez8cm Scroll down to find the elements "HOTS" and "STEL" HOTS is a solid heating element, releases .5 pressure. STEL is steel. Conductive, meltable, strong. Did I code it correctly or am I doing something wrong?
Edit: Your STEL is dead. No use. I'm going to fix it and link it.
EDIT2: I don't recommend following antb's source. The files are modded past what the files are originally. I'll also fix this but, be aware that antb's source isn't the official source. Yet.