The International Code Council's (ICC) Group B proposes modifications to certain United States (U.S.) building and safety codes.

Proper water heater sizing in any application hinges primarily on user consumption within a given period. That much is probably obvious, even to someone who has never sized a water heater. What complicates matters, especially in a large commercial application, is the cadence of that usage.

Eye candy would best describe many of the products on display at the great AHR Exposition recently held in Orlando Florida’s Convention Center.

When the system was operated, the owner complained of flow problems. The heat emitters in any given zone were only marginally warmed when their associated zone circulator was operating. The owner questioned if another circulator should be installed.