The Cigas Machine Shop in Pottstown, Pennsylvania, is located in a building previously owned by the Bethlehem Steel Corporation, with parts of the structure dating back to the late 1880s.

A transpired solar collector system utilizes perforated metal wall cladding to heat outside fresh air via sunlight. This technology can help reduce winter heating costs by approximately 30 percent, qualify for government grants and incentives for renewable energy, and generally has a payback of three to eight years.