... We also have one of those roll-around portable units now, which we bought as sort of a proof-of-concept and which we plan to use elsewhere (the bedroom, specifically) so I can speak to those a little bit, too.
You commented a while back that the portables cool air and blow it into the room and then pull it back into the unit and exhaust it after it is used to cool the condenser -- obviously, outside air for this cooling purpose would be beneficial, leaving cooled air in the room. I *had to* have something while my engine change is underway so I bought a mid-sized portable. It just barely works in a small room inside a shop in 95 deg NC heat (pulls out about 3 gallons of water overnight and this might be its biggest contribution). Did you ever rig up an outside air feed for the intake of condenser cooling air? Any other suggestions to make this anvil REALLY cool air?
Many thanks, and always good to see your contributions to the board again. BH