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

https://nyc3.digitaloceanspaces.com/mass-hvac/uncategorized/how-to-size-an-ac-unit-for-a-new-england-home.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