We like bedroom COLD for sleeping. We're planning to buy a window A/C to put in the bedroom; probably mounted in the wall. Back in the "old days" most window A/Cs had a "vent" lever you could open to just draw in fresh air from the outside when it's cold out. Can't seem to find any like that anymore. The bedroom is 12' X 22'. What brand/model window A/Cs do y'all recommend? Here in San Antonio, it's still in the 80s to low 90s. Is the LG 10,000 BTU a good model, and good size for the room? Thanks!