Quote Originally Posted by Blood of Gaea View Post
Personally, I think it would just be too finicky, so I wouldn't allow it. There's also a lot of questions to it, is Heat Metal hot enough? Does the cooling instantly quench the metal? If these are true, why does Heat Metal not ruin the temperament of everything you use it on?

That said, spellcasters can definitely start a fire, and your smithing PC almost certainly will have knowledge of how to craft a sufficiently hot fire.

Spellcasters still have plenty they could do to help regardless.
Eh, given the existence of Fabricate, I don't really see a problem with allowing the use of heat metal and perhaps other spells to aid with crafting. Especially since Heat Metal would mostly only cut down on fuel consumption. I mean, you'd still have to do the work part of forging by swinging a hammer.

Perhaps some enterprising caster could conduct some research based on heat metal specifically to replace the forge when forging.