Externet Posted July 28, 2019 Share Posted July 28, 2019 Hi. These single-hose 'portable' airconditioners... how can they cool any room at all ? The hot exhaust expels the heat from its condenser cooled by the room air cooled by the evaporator + the heat extracted from the room air by the evaporator + the building heat entering the room under the door and leaks + the compressor heat. Can someone explain ? Link to comment Share on other sites More sharing options...
Endy0816 Posted July 28, 2019 Share Posted July 28, 2019 (edited) Lowers the pressure in the room(assuming room is reasonably sealed). Loading up with heat the air that is leaving. They are less efficient like you say. Better not to cause a leak in the first place than to have to pump fast enough to stay ahead of it. Dual hose or a proper Window unit are better options. Edited July 28, 2019 by Endy0816 Link to comment Share on other sites More sharing options...
J.C.MacSwell Posted July 28, 2019 Share Posted July 28, 2019 4 hours ago, Externet said: Hi. These single-hose 'portable' airconditioners... how can they cool any room at all ? Not very efficient, but the exhaust gas has a higher temperature than the replacement air getting back in the room. If the difference is enough to also make up for the energy input to the unit you get a cooler room. Otherwise you certainly can get negative efficiency and heat the room further. Link to comment Share on other sites More sharing options...
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