re: Question for the ot a/c man regarding house temperature

You might think these are saving you money but portable a.c. like this are absolute garbage for most climates.

While its running, go outside and feel how much air is exhausted out the hose through the window. Now ask yourself, "if all this air is coming from inside the house, where is the air coming from that is replacing this exhausted air?".

The answer is that its coming from the humid and hot outdoors through leaks in the house envelope. Or possibly even worse, its drawing from an insanely hot attic through leaking light fixture penetrations in ceiling.