Glory hole term origins: Did gay culture or glass blowing invent it first?
A glass blower uses a glory hole gas furnace to heat the glass gather on the blowpipe / blow pipe / blow tube / blowtube and keep it molten before his blowing
Gloryhole - A place for reheating glass
A glass piece is reheated in the "glory hole" to help the glassblower apply the finishing touche - Picture of Simon Pearce Factory Outlet and Glassblowing, Mountain Lake Park - Tripadvisor
List of Glass Blowing Tools & Their Uses 2023 [Updated] - Working the Flame
Glass in the Glory Hole Photograph by Allen Penton - Pixels