Glass Maker II
Compared to the Glass Maker, it requires 100% more Workers and 150% more Electricity, and 100% more Molten Glass to run continuously. In exchange for the increase requirements, it outputs Glass at three times the speed, ultimately equating to a 50% increase in the efficiency of Sand. Unlike its predecessor, it also does not produce any Slag as a byproduct. Physically it is more than twice as long as the Glass Maker.