What are engineers making time to read? Here is the five-item punch list of the most popular news articles, features, and columns at www.esmagazine.com.

  1. What’s Next: Specifying the Right R-410A Replacement 

  2. How One $50 Sensor Broke a Building 

  3. Designing Ventilation For Battery Rooms Getting started with VRF

  4. Bring the Outdoors in: The Energy-Efficient Method for Using 100% Outdoor Air in Buildings

  5. The Next Era of Innovation in Air Conditioning