(Continued from previous lesson)
From our last lesson you learned a little bit about what the glass looks like before it goes in our furnace, and becomes molten enough to be worked with. Well today I have some photos of what the furnace and the glass inside looks like when its hot. As you can see in the photo on the right, our controller shows that the furnace temperature is 2,151 degrees Fahrenheit.
This is hot! But not as hot as our glass gets. When working with the glass outside of the furnace, it cools down. So in order to be able to manipulate the glass again, we use a piece of equipment called a reheating chamber. This equipment is a barrel laid on its side and heated with gas and air to create a radiant heat of up to 2,300 degrees Fahrenheit.