ASHP are claimed for being healthier than fossil-fuelled heating such as fuel heaters by protecting a far more even temperature and staying away from unsafe fumes risk. R290 can achieve high performance concentrations that has a+++ Electricity rankings across the Haier Heat Pump vary. Better effectiveness contributes to reduced costs https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/