Hvac

January 5, 2013

Maintenance matters: The energy cost of HVAC air filters.

Every day your building loses energy efficiency, with occasional improvement as equipment is serviced. The “drift”, if left unchecked, could be as much as 30 percent […]
April 22, 2013

Pay attention to parasitic energy use in commercial building HVAC systems

A 1999 study by Detlef Westphalen andScott Koszalinski, Energy Consumption Characteristics of Commercial Building HVAC Systems  looked at parasitic energy consumption. Following are some excerpts from […]
April 5, 2014

Guaranteed sticky! Capture every HVAC service call with dynamic stickers

It’s all but guaranteed that every boiler, chiller, AHU (air handling unit) or pump is plastered with someone’s sticker. Most HVAC service contractors put some sort of sticker on […]
November 16, 2014

The economics of Rooftop Units (RTU). Energy efficiency depends on your choices.

Rooftop Units (RTUs) are everywhere. Over 45 percent of the commercial real estate space in the US is cooled, and/or heated by packaged units. This equipment […]