Air Balance, Inc. was founded in Philadelphia in 1958 to manufacture louvers and dampers, with special emphasis on fire dampers. In 1964, Air Balance revolutionized fire dampers by inventing and introducing the curtain blade fire damper, which is …... Read more >

We are pleased to announce the appointment of L. J. Fiesel Company as the PennBarry representative in the Indianapolis and Fort Wayne territory.

DuraSystems Barriers, Inc. of Vaughn, Ontario has appointed L. J. Fiesel their exclusive representative in Missouri, Illinois and Indiana.  DuraSystems produces model GNX UL listed Fire Resistant Duct, model HP & SD UL list…... Read more >