I had a norpole 12000 btu unit until recently. It worked alright, but it could have been code colder. I got an LG 12k btu unit to replace it, thinking it would be comparable but it didn't quite cut it. Then I took it back for an 8000 btu after some reading about oversized air conditioners not reducing the humidity enough because the compressor doesn't run enough to bring it down... But it feels the same. Bottom line is I need the ac of acs, an unholy contraption cold enough to freeze out old man winter himself. It has to be a window unit that will fit in a window that opens 16.5 inches tall and 26 wide.