Oversized vs. Properly Sized AC: Why Bigger Isn't Better

https://seoneo3.blob.core.windows.net/mass-hvac/uncategorized/a-homeowner39s-guide-to-ductless-mini-split-installation.html

When Massachusetts homeowners shop for a new air conditioner, a common instinct kicks in: buy the biggest unit you can afford. More tonnage, more cooling power, fewer problems. It sounds reasonable