This link downloads a 28-page presentation describing DOE resources available for improving the efficiency of existing homes including software, manuals, research and technical expertise.
July, 2007, Quick Estimates-2.ppt. This 7-pg presentation from Larry Kinney, Synertech Systems Corporation, contains four charts that plot convective and conductive losses (in MMBtu per heating season) vs CFM50 (blower door reading) and R-value (of 1,000 ft2 surface) for various heating climates (HDD per year).
This paper prepared for the ACI Summit by Larry Kinney, Synertech Systems Corporation, approaches a base case and savings opportunities from a range of fenestration strategies. The highlighted shutters have optimized controls and power-supply to maximize comfort, daylighting and energy savings regardless of utility interruptions or occupant behaviors