On low cooling, combined with a floor fan on low speed to redirect air upwards, the upstairs rooms became quite cool even during the hottest of the summer days. In addition it lowered the electric bill even when left running all day. I can only figure...

Purchased from Newegg because of reviews.

The reason these don't drain is because the water is suppossed to accumulate so the blade will splash the water onto condenser coils cooling them in addition to air flow for better efficiency...