Introduction to Air Conditioning Tonnage

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When buying air conditioners, most people know the renowned brands available in the market. However, they are unfamiliar and confused about the tonnage term of the air conditioner. In the HVAC industry, air conditioning body research tonnage is the most widely used yet mysterious word. Often people think that tonnage is used for tons of air the unit deals with in a specified time or the unit’s weight. But, an air conditioning tonnage is actually for rating air conditioning units, helping to determine the cooling capacity of air conditioners. Here is everything else you need to know about Air Conditioning Tonnage.

ac tonnage calculator

What is AC tonnage in simple terms?

Remember, AC tonnage has nothing to do with the weight of the unit, but it is a term used to explain the amount of heat an AC system can eliminate from a home in one hour. However, higher AC tonnage can mean higher energy expenses as it means that an AC system with higher tonnage works more. Therefore, it is recommended to use an AC tonnage calculator to buy the right AC system.

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Importance of AC Tonnage 

BTU, or the British thermal unit, is a common measuring unit according to internationally recognised standards. So, every square foot of a room needs around 20 BTU per hour. There are 12,000 BTUs to one ton. So, if anyone is using a 1-ton AC in a larger painsltube room that may need a higher or 1.5-ton AC, the cooling would be insufficient or not quick. It will lead to the use of higher fan speeds or reduced temperatures to balance, resulting in higher electricity costs.

On the other hand, bigger or 1.5-ton AC, in a small room will spend more power than required, leading to a waste of energy.

Selecting the Right Cooling Option

The right AC tonnage is the best way to get the most out of the AC unit. However, you need to evaluate the correct tonnage required for your room, which needs few considerations. These include the room size, climate zone, current energy efficiency of your home, etc.

Thus, the correct tonnage is crucial since both underpowered and overpowered air conditioners can cause more expenses in the long run. It is wise to use an AC tonnage calculator to determine the correct type of AC for your home. All leading manufacturers and suppliers of electrical products, like Mitsubishi Electric India, provide users the ease to determine the right tonnage for AC purchase through its online tool. One just needs to enter the area size for the roof and floor on available tools to decide the correct AC for their place.

So, What’s a Ton?

A ton has nothing to do with weight in the air conditioning world.  A ton of refrigeration is the amount of heat needed to melt a ton (2,000 lb) of ice at 32 degrees Fahrenheit. There are 12,000 BTUs to one ton.  Most air conditioners are rated in tons or BTU, so a 4-ton unit is 48,000 BTUs.

Choosing the Best Cooling Option for You

It’s a good idea to understand what kind of cooling you need when choosing to rent a spot cooler. Generally, in a comfort cooling setting, you can estimate one ton of cooling for every 500 square feet (assuming you have a standard 8-foot ceiling). In a more densely populated, cross-ventilated area, we suggest one ton of cooling for every 250 square feet.

Keep in mind that when renting a unit you’ll want to anticipate how many people are working in the area that is being cooled. In general, each individual person generates roughly 600 BTUs.

Use our BTU calculator to determine how much cooling you’ll need. Simply enter the cubic footage of the area (don’t forget to multiply the area of the room by the room height) that needs to be cooled. Then choose 3, 4 or 5 for the air retention rating (3 being an office, and 5 being a tent).

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