Click on your location to determine cooling hours and degree days.
To estimate heating and cooling equipment size
Enter the square footage of your home: Sq.Ft.
Cooling
  Equipment Size: tons
  Electric Rate: cts/kWhr
  Cooling Hours:
Cooling - Standard 
  System Type:
  SEER:
  If you don't know the SEER, select the approximate year your equipment was manufactured/installed: 
Cooling - High Efficiency
  System Type:
  SEER:
 
Heating
  Equipment Size: Btus
  Gas Rate: cts/therm
  Degree Days:
Heating - Standard
  System Type:
  AFUE/COP:  
  If you don't know the AFUE/COP select the approximate year your equipment was manufactured/installed: 
Heating - High Efficiency
  System Type:
  AFUE/COP:
 
  
  Disclaimer: Actual costs will vary depending on weather conditions and usage. This information is intended for comparison purposes only.