That has a GWP of only 3, R290 would be the environmentally friendly alternate to other refrigerants emphasising Haier’s dedication to producing alternatives for a far more sustainable future. Air source heat pumps use a similar kind of engineering that retains a fridge or freezer great – but in reverse. https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/