How Much Does It Cost to Run a Window AC Unit? (5,000 to 12,000 BTU)
A typical 8,000 BTU window AC costs about 13 cents an hour while the compressor runs. Costs for every size and ways to cut them.
air conditioning
How Much Does It Cost to Run Central Air Conditioning? (By Home Size)
A 3-ton central AC costs about 60 cents per hour of compressor run time. Monthly costs by system size and how to lower them.