I have a studio that I use to cast all my jewelry. It is roughly 45 degrees in there and no heater on a 120 circuit is going to warm the room during the winter. Lately I’ve noticed that the thinner rings can become brittle and that maybe the metal is cooling too quickly as I pour from my electromelt. Normally I cast Silver at 1760 degrees (bought from Rio Grande and that is the suggested temperature.)
Is it ok to take it up to 1800 degrees in the winter?
Thanks in advance.