When you hear the word, Air conditioning, which do you think of cooler or heater ?
Cooler, of course! CJ
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In the US, with the exception of homes built before the 1960's, most have central air-conditioning which has heating and cooling both. As for automobiles, every car built today has air-cond and heater. In terms of buildings and establishments, when people complained about being too hot because of air-cond is down, air-cond meant "cooling".