As a rapidly developing clean energy technology in recent years, air-source heat pumps have brought multifaceted conveniences to people’s lives while significantly reducing environmental impacts. A single unit meets multiple needs such as heating, cooling, and hot water supply (e.g., triple-supply systems), lowering household equipment procurement and maintenance costs. By absorbing free thermal energy from air (with COP energy efficiency ratio reaching 2.5-4.0) and requiring minimal electricity to drive compressors, heat pumps reduce carbon emissions by over 60% compared to coal-fired boilers. They completely eliminate sulfur compounds, nitrogen oxides, and particulate pollution from coal/gas combustion. In northern China’s “coal-to-electricity” initiative, the popularization of air-source heat pumps has notably decreased PM2.5 concentrations, particularly during winter haze episodes.
Through technological innovation, air-source heat pumps achieve a balance between enhancing living standards and promoting green development. Their energy-efficient, safe, and multifunctional features make them pivotal technologies under the “Dual Carbon” goals. Future advancements in low-temperature performance optimization and intelligent upgrades will further expand their applications.