In a dry technique, this heat is circulated as warm air through ducts and vents. Air-to-air heat pumps can flow into either incredibly hot or cold air. The ECOMOD 290HT array of monobloc air source heat pumps can be found in 3 chassis dimensions and five outputs: 15kW, 18kW, 27kW, https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/