HVAC Conservation Features

Maintenance of HVAC equipment was practiced for 53.4 billion square feet of the total of 67.3 billion square feet of commercial floorspace (Figure 1). Three HVAC conservation features—energy management and control systems, systems with economizer cycles, and variable air-volume systems—were each used for about 20 billion square feet of floorspace.

• Detailed tables

Figure 1. HVAC Conservation Features in Commercial Buildings, 1999
Energy Information Administration
Commercial Buildings Energy Consumption Survey

Those commercial buildings that used HVAC conservation features were larger commercial buildings on average (Figure 2).

Figure 2. Average Building Size by Type of HVAC Conservation Features, 1999
Energy Information Administration
Commercial Buildings Energy Consumption Survey

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“Conservation Features and Practices”

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Release date: May 21, 2002

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