* Estimates of outdoor air volumes by building area are generated from the Pacific Northwest National Laboratory publication, "Achieving The 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1-2010" (Table 4.14) or default values from ASHRAE Standard 62.1-2010. These are estimates only. For actual airflows, consult with your engineer.
This program is designed to illustrate the level of CO2 reduction acheived when utilizing Airxchange energy recovery wheels. The program uses ASHRAE weather data and ASHRAE 97.5% design days for the cities listed.
For engineering analysis of specific applications, please use Airxchange's performance and selection software.
CO2 info: http://www.eia.doe.gov/oiaf/1605/coefficients.html
btu info: http://www.eia.doe.gov/kids/energyfacts/science/energy_calculator.html