Professionals Corner

Useful Stuff for the Energy Professional

The following are links to various useful tables and charts to assist the energy professional:

• R-Value Table
  Insulation values of selected materials
• Air Infiltration Estimation Table
  Natural infiltration estimates for different ages of homes
• Heating Fuel BTU Table
  BTUs per unit of heating fuel
• Heating System Efficiency Table
  Estimated Heating System Efficiencies of Older Furnaces
• Air Conditioner SEER Values Table
  Estimating SEER value of older AC units
• Cooling Load Hours for Iowa
  How long should your air conditioner run in Iowa
• Window Air Leakage Table
  Estimates of Air Leakage for Different Types and ages of Windows
• Heating Degree Days Table
  For Selected Locations Throughout Iowa

Last Updated: 05/17/2007