Why is the cooling power of air-conditioning measured in tons?

Why is the cooling power of air conditioner measured in tons

Imagine this: a contractor told your grandma that he would install a new air conditioning (A/C) system in her room. As he was explaining, he mentioned that the place required a four-ton unit. Confused, your grandma said, “Oh my! How will you bring something so huge in the house?” Grandma’s reaction was … Read more