Please take a minute to read this entire Op-Ed piece (by Richard Moe) from the New York Times.
“Experience has shown that virtually any older or historic house can become more energy-efficient without losing its character. Restoring the original features of older houses — like porches, awnings and shutters — can maximize shade and insulation. Older wooden windows perform very well when properly weatherized — this includes caulking, insulation and weather stripping — and assisted by the addition of a good storm window. Weatherizing leaky windows in most cases is much cheaper than installing replacements.”
Save the Windows!