decommissioned glass furnace. cold melting kiln for manual glassblowing

blastoffs brick bricks bright burning cast chimney craft decommissioned department energy equipment factory fire fireclay fireplace flame foundry furnace gas glass glassblowing heat industrial industry interior kiln light lining liquid machining manual manufacturing melting metal metallurgical metallurgy method mixer molten nozzle pandemic plant sidecar smelting smoke steel suspended torch white workshop