BTUs and Tonnage go hand in hand. They are dependent on one another.
A one ton A/C is approximately 12,000 BTUs.
Where as BTUs is related to how fast water is heated, tonnage refers to how much power is required to melt a ton of ice overage 24 hours.
因为所需的热量大量的冰在融化24 hour is 288,000 BTUs, we divide that be 24 to get the amount per hour, which is 12,000.
Who knew that determining the size of an air conditioner involved so much math?
Typical residential air conditioners are between 1 and 5 tons with 2.5 and 3 ton units being the most common.
In instances where the home requires a power larger than 4-5 tons, the system will frequently be split.
Meaning instead of a single powerful unit taking care of the house, there will be two units installed. These units will control different parts of the house.
Why a ton of ice?
Because ice used to be essential to refrigeration, and it’s one of those terms that have carried over despite the change in processes that cool our homes.