As an air to h2o monobloc heat pump, it operates competently utilizing eco-welcoming R290 refrigerant, delivering sustainable heating with a powerful A+++ Strength efficiency ranking. Switching to a heat pump is simpler with our Heat Pump Promise — if it doesn’t carry out as promised, we’ll Provide you your money https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/