Select the filter below to find room air conditioners that contain refrigerants with a lower impact on global warming. While R-32 (HFC-32) and R-454B are HFCs, they are lower-GWP Which are powerful greenhouse gases with GWPs hundreds or thousands of times higher than CO 2. Some refrigerants are hydrofluorocarbons (HFCs), The GWP compares the warming power of a substance to an equivalent amount of CO 2 (GWP = 1 for CO 2). 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. Getting the right size means getting the comfort and the energy efficiency right.Ĭonsider selecting a room AC with a lower Global Warming Potential refrigerant – Room air conditioners use refrigerants. The most energy efficient air conditioner is sized to the square footage of the space to be cooled. The result will be a room that's not very comfortable 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. Air conditioners remove both heat and humidity from the air. 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 regulate the temperature and save a significant amount of energy during operation. Room air conditioners with efficient variable speed compressors can vary the speed of the internal compressor motor in order 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! 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. Remember that bigger is not always better! An oversized air conditioner is less effective, wastes energy and does not provide better cooling. What should I consider for when buying a room air conditioner?
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