How to dry the ਪ੍ਰਯੋਗਾਤਮਕ ਭੱਠੀ?

When the experimental furnace is used for the first time or used again after a long period of inactivity, it must be oven dried: open the oven door at 20～200℃ for 4h, and close the door at 200～600℃ for 4h.