Which refrigerant is commonly used in high efficiency heat pump systems?

R-410A is widely recognized as a commonly used refrigerant in high-efficiency heat pump systems due to its favorable thermodynamic properties and lower environmental impact compared to older refrigerants. R-410A operates at higher pressures, which allows for better heat transfer and improved energy efficiency, making it ideal for modern heat pump designs. Its capacity for enhancing system performance aligns well with the push for higher Seasonal Energy Efficiency Ratios (SEER) and Heating Seasonal Performance Factors (HSPF), which are critical in evaluating the efficiency of heating and cooling systems.

Additionally, R-410A does not deplete the ozone layer, a significant advantage over some older refrigerants, promoting its preference in residential and commercial applications. The phase-out of substances like R-22 and R-404A under environmental regulations has further solidified R-410A's position as a go-to option for high-efficiency systems, supporting advancements in technology that focus on sustainability.