Why Energy-Efficient AC Pays Off in Hot, Humid Summers

https://seoneo3.blob.core.windows.net/mass-hvac/uncategorized/why-old-new-england-homes-are-tricky-to-cool.html

The upfront cost difference between a standard-efficiency and a high-efficiency air conditioner can be substantial — sometimes several thousand dollars for the same cooling capacity at a higher SEER rating