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Dec 19, 2014 at 22:01 comment added Johnny The single-hose models are very inefficient, they pull in unconditioned air from outside the space to blow out the hose. Barely tolerable inside a house where it's mostly bringing in air from the next room, but would be particularly ineffective in Vegas where it's bringing in 110 degree outside air. Even the dual-hose models are not that great, but would be an improvement over the single-hose model. A window unit A/C would work much better (with a much larger hole (or Window) being required). Consumer Reports said portable units delivered about half their rated cooling capacity in testing.
Sep 9, 2012 at 2:06 vote accept David Perry
Sep 8, 2012 at 16:18 history answered dbracey CC BY-SA 3.0