Think mortgage math is complicated? Many in the nation are focused on air conditioning. Why is it measured in tons? It harkens back to the days of using ice, and a “ton” measures how much heat, removed by the system, would be needed to melt 2,000 pounds, or one ton, of ice in a 24-hour period. The result is then expressed in BTUs per hour. It takes 288,000 B...
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