Using a GWP of only three, R290 will be the environmentally friendly alternative to other refrigerants emphasising Haier’s dedication to acquiring options for a far more sustainable long term. Air source heat pumps use a similar kind of engineering that keeps a fridge or freezer amazing – but in reverse. https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/