Find Most Efficient room air conditioners here.īe sure to look for the ENERGY STAR when shopping for a room air conditionerĬurrent Specification Effective Date: October 30, 2023 Most Efficient room air conditioner models are low noise. They represent the very best for energy savings and environmental protection. Products that are recognized as ENERGY STAR Most Efficient deliver cutting edge energy efficiency along with the latest in technological innovation. Find room air conditioners that contain refrigerants with a lower impact on global warming here. While R-32 (HFC-32) and R-454B are HFCs, they are lower-GWP options for room air conditioners. Some refrigerants are hydrofluorocarbon (HFC), which are powerful greenhouse gases with GWPs hundreds or thousands of times higher than CO2. The GWP compares the warming power of a substance to an equivalent amount of CO2 (GWP = 1 for CO2). Selecting an ENERGY STAR certified model with a lower GWP refrigerant means your product will have a much lower impact on the climate if the refrigerant is released into the environment. Refrigerants with lower global warming potential (GWP) for room air conditions include R-32 (HFC-32), R-454B, and R-290. If you are mounting an air conditioner near the corner of a room, look for a unit that can send the airflow in the right direction.Ĭonsider selecting a room AC with a lower Global Warming Potential refrigerant. Getting the right size means getting the comfort and the energy efficiency right.Ĭonsider where you install the unit. The most energy efficient air conditioner is sized to the square footage of the space to be cooled. This can lead to discomfort because cool, moist air will make the room feel damp and clammy. If the unit is too large, it will cool the room before it has a chance to remove the humidity. A unit that is too big will be less effective and offer reduced air conditioner efficiency. Room air conditioner sizing is all about matching the room size to the air conditioner size. As a result, the capability for efficient variable output allows a room air conditioner to quietly cool the room and save a significant amount of energy. Room air conditioners with efficient variable speed compressors can vary the speed of the internal compressor motor to continuously control the temperature. In a conventional room air conditioner, the compressor works either at maximum capacity when the room thermostat calls for cooling or off when the desired temperature has been achieved, typically alternating frequently between full on and off. Room Air Conditioners with Variable Speed TechnologyĬonsider purchasing a room air conditioner with variable speed compressor technology. hole in the wall! For maximum savings, set the AC thermostat as high as is comfortable. An improperly installed room AC leaks as much as a 6 sq. When installing your new unit, be sure to follow the instructions in the manual and use the included insulation materials. An oversized air conditioner wastes energy and it does not provide better cooling. Remember that bigger is not always better! Make sure your unit is properly sized. What else should I look for when buying a room air conditioner? If all room air conditioners sold in the United States were ENERGY STAR certified, the cost savings would grow to more than $1 billion each year, preventing more than 5.7 million metric tons of greenhouse gas emissions annually – equivalent to the emissions from over 1.2 million vehicles. These connected products are also 'smart-grid ready', potentially allowing you to take advantage of special energy bill savings programs some local utilities offer. receive feedback on the energy use of the product.schedule changes to temperature settings based on your needs.turn off the unit remotely using your phone or computer. Room air conditioners with variable speed technology save even more energy and quietly keep you cool, giving you innovation and energy savings in a state-of-the-art room AC.ĮNERGY STAR certified room air conditioners come with better materials and clearer instructions to improve sealing and insulation around the unit, so costly and uncomfortable air leaks are minimized.ĮNERGY STAR certified room air conditioners with connected functionality offer additional convenience, comfort and energy-savings, including the ability to: When the weather heats up, a new ENERGY STAR certified room air conditioner can help you keep your cool and save energy! In fact, ENERGY STAR certified room air conditioners use 15-26 percent less energy depending on the product class and, on average, cost about $57 per year to run.
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