Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris.

A major winter storm impacting the Midwest has moved to the Mid-Atlantic, causing travel disruptions. Airlines are offering travel waivers.

The Santa Ana Winds are named after a Los Angeles-area mountain range, but the source of them actually comes from hundreds of ...