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Johnny On the Spot Blog

Does The Size Of Your AC Matter?

The common notion that the bigger the size of an air conditioner the better is not entirely true. Purchasing a small unit may be insufficient if you have a large area to cool. Likewise, opting for something larger than what is necessary might cause harmful molds due to suspended moist in your house.

Picking the right size of air conditioner for your need or use does matter. Below are a few helpful guidelines to help you choose the appropriate AC size.

Match The AC Size To Your Room’s Area

Small rooms only require an AC with a capacity of 5,000 to 6,500 BTU/hr. On the other hand, larger rooms will need an AC with a capacity of 7,000 to 8,500 BTU/hr. BTU means British Thermal Units. But if you’re planning to install an AC for your business establishment, have a professional technician estimate the size and quantity of air conditioners to be used.

However, if you have an air conditioner already installed in your home, how are you to know if it is the appropriate AC size for your room? First look for the manufacturer’s label which has a Model Number (MN). The first three digit determines the SEER ratings while the number that follows determines the BTU. Of course a greater BTU means a bigger AC size.

The British Thermal Unit

BTU is the amount of heat required to raise a certain temperature. In air conditioners, BTU refers to the amount of energy used to remove the heat from the air. You’ll need a higher BTU if you have a large home. The heating or cooling unit will be able to produce more heated or cooled air.

In regards to efficiency, BTU is a good way to compare the capacity of similarly priced units. And if you live in warmer climates, you’ll need 10 – 20% additional BTUs per room over the normal amount.

Equation for Finding the Right AC Size

The equation for finding the correct AC size is very generic. First figure out the square footage that needs cooled and the climate you live in. These will give you a better rough estimate for the air conditioning capacity needed. You can also include the number of windows in your home, ceiling height, typical number of occupants, your ideal temperature and humidity settings in your calculation if you want to be more specific.

Finding the right AC size for your home is like finding the right size of shoes that fits you perfectly. If you need more advice regarding the best AC size for you, visit Johnny On The Spot or call at(725) 977-9461 and we’ll be more than willing to assist you.

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