Air conditioning accounted for nearly 19% of U.S. household energy spending in 2020, according to the Energy Information Administration. As energy costs rise and climate concerns intensify, more homeowners are looking for ways to lower their energy bills. Modern eco-friendly air conditioners can slash electrical bills by 20% to 40% compared to older models while dramatically reducing a home’s environmental footprint.
An energy-efficient AC unit earns its credentials through measurable features. High SEER2, EER, and CEER ratings are standard indicators of performance. Units also feature energy-efficient inverter compressors and next-generation refrigerants like R-32, which are less harmful to the ozone layer than older R-410A systems. Homeowners can further increase system efficiency by using smart thermostats and ensuring the unit is sized precisely for the space.
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Understanding Efficiency Metrics
Comparing AC efficiency requires understanding different metrics. EER (Energy Efficiency Ratio) measures how efficiently an AC cools at a fixed outdoor temperature, usually 95°F. It is commonly used for portable ACs, geothermal heat pumps, and mini-splits to show peak performance.
CEER (Combined Energy Efficiency Ratio) is specific to window and portable room ACs. It builds on EER by factoring in standby energy use, giving a more complete picture of year-round energy consumption. SEER2 (Seasonal Energy Efficiency Ratio 2) applies to ducted systems and ductless mini-splits, reflecting seasonal performance across varying temperatures.
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Costs and Market Options
In general, you’ll pay between $5,540 and $10,980 for an HVAC unit, installation costs, and removal of your old unit. You can expect to pay between $4,000 and $7,000, including installation, old furnace removal, and labor. You’ll likely pay between $3,000 and $35,000, but most homeowners spend between $5,800 and $7,500.
The Frigidaire FHWC103TC1 window unit delivers 10,000 BTU of cooling for up to 450 square feet. It features Eco Mode to cycle the compressor and save energy, plus a Clean Filter alert. However, it lacks Wi-Fi connectivity and a child lock, which may be a drawback for some families.
