nick: Otherwise it's definitely a confusing statement because it's historically incorrect to just call it "air conditioning" since the original patent used the term to add water to a textile factory (unlike most things we consider AC, which remove water). It means "make the air suitable for a purpose"

It is interesting tho that “crank up the AC” is totally unambiguous to my ears

this question is easily answered by flipping it. If someone asks YOU to turn down the AC, you would, reasonably, assume they were too cold.

And since AC works by removing heat, turning up the heat remover makes actual sense.

i recommend everyone shout [ADD/REMOVE] MORE HEAT PLEASE to your partners

Otherwise it's definitely a confusing statement because it's historically incorrect to just call it "air conditioning" since the original patent used the term to add water to a textile factory (unlike most things we consider AC, which remove water). It means "make the air suitable for a purpose"

The wording there is vague, but my understanding is that Carrier’s original use was to *remove* moisture from the air. www.smithsonianmag.com/smithsonian-...

The Unexpected History of the Air Conditionerwww.smithsonianmag.com The invention was once received with chilly skepticism but has become a fixture of American life

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