As an air to drinking water monobloc heat pump, it operates competently using eco-friendly R290 refrigerant, supplying sustainable heating with a powerful A+++ Electricity effectiveness score. The ECOMOD 290HT number of monobloc air source heat pumps come in three chassis measurements and 5 outputs: 15kW, 18kW, 27kW, 40kW and 50kW. https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/