Most heat pumps may function in the cooling manner in which the cold refrigerant is moved in the indoor coils to chill the room air. One or more[9] indoor condenser heat exchanger coils. They transfer the heat into your indoor air, or an indoor heating system for example h2o-loaded radiators https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/