Synopsis In 1994/95, the Swiss Agency for Development and Cooperation and The Energy and Resources Institute entered into a partnership to find solutions to the energy and environmental problems of select small and micro enterprise sub-sectors. Four sub-sectors were selected for intervention: foundries, sericulture, glass industries, and brick manufacture. This book narrates the process by which the partners developed and demonstrated two clean, energy-efficient technologies for the small-scale glass units in Firozabad: the gas-fired recuperative pot furnace and the gas-fired muffle furnace.