The PM2.5 Beijing decreased from 110ug/m3 to 58ug/m3. Blue skies showed up again in winter of Beijing in 2017. In 2016 and 2017, the coal fired boiler replace program, “coal to clear heating program”, supported around 500,000 units air source heat pump installation in Beijing. And reduce more than 2 million tons coal usage. SO2, NOX, and other pollutions are also reduced a lot.

The installation boosted after the new regulation. In 2015, 5,000 ASHP installation in Beijing. In 2016, 161,000 ASHPs installation in Beijing. In 2017, around 350,000 ASHPs installation in Beijng. Most are air to water heat pump, 5 and 6 hp are typical models for one rural household

The PM2.5 Beijing decreased from 110ug/m3 to 58ug/m3. Blue skies showed up again in winter of Beijing in 2017. In 2016 and 2017, the coal fired boiler replace program, “coal to clear heating program”, supported around 500,000 units air source heat pump installation in Beijing. And reduce more than 2 million tons coal usage. SO2, NOX, and other pollutions are also reduced a lot.

The installation boosted after the new regulation. In 2015, 5,000 ASHP installation in Beijing. In 2016, 161,000 ASHPs installation in Beijing. In 2017, around 350,000 ASHPs installation in Beijng. Most are air to water heat pump, 5 and 6 hp are typical models for one rural household