The Plastics Pipe Institute, Inc. (PPI), a trade association representing all segments of the plastic pipe industry, recently published a user document for handling high-density polyethylene (HDPE) ...

Installed the right way, flexible duct is a great ventilation product for a great many applications. Sometimes, however, hurried installations create poor-quality results - as they can for any HVACR ...

There has been a lot of buzz in the past several years surrounding the whole-house approach to analyzing energy efficiency and matching the correct system and components with each building envelope.