Photo 1 shows two examples of protective barriers permitted to be installed on the supply-side terminals of a circuit breaker used as a service disconnect. Photo 2 shows duct seal covering the ...

A subject that is sure to get some hearty debate going is whether ducts inside a conditioned space should be sealed or not. What is your opinion on this sticking point of energy efficiency? Can you ...

Seal duct as early as possible in the manufacturing process and keep uncovered for as long as possible. Seal early, load late. If possible, set manufacturing schedules to fabricate duct to be covered ...