Inside of a dry method, this heat is circulated as heat air by ducts and vents. Air-to-air heat pumps can circulate both hot or chilly air. The ECOMOD 290HT choice of monobloc air source heat pumps come in 3 chassis sizes and 5 outputs: 15kW, 18kW, 27kW, 40kW and 50kW. https://bookmarkworm.com/story20413484/the-2-minute-rule-for-r290-air-source-heat-pump