
Central AC Unit
A central AC unit is a whole-home air conditioning system that cools air via ducts, typically including the outdoor condenser, indoor evaporator coil, and installation for average-sized homes.
Fun Fact
Central AC costs are often calculated at $2 to $6 per square foot of home space, with size measured in 'tons' where one ton cools 400-600 sq ft.
Price History
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Snow Plowing
Snow plowing is a professional service using plow trucks to clear snow from driveways, sidewalks, and parking areas for residential and commercial properties in the United States.

Grand Piano (Steinway & Sons Model D)
Professional-grade concert grand piano with 9-foot frame.

4-Year College Degree
Average total cost of a 4-year degree at a public university (in-state).

Heart Bypass Surgery
Heart bypass surgery, also known as coronary artery bypass grafting (CABG), is a major open-heart procedure to improve blood flow to the heart by creating new pathways around blocked arteries.