# WHAT SIZE AIR CONDITIONER DO I NEED?

You may be apprehensive about getting new air conditioning equipment as a regular homeowner. You might not be aware of how to size an air conditioner for your home. Calculating the air conditioner size you require can appear to be a difficult math problem, leaving you unsure where to begin. You may be pressured for time if you're replacing a faulty air conditioner.

When it comes to choosing the proper air conditioner for your home, there are a lot of things to think about. If you choose an air conditioner that is too tiny, it may not be able to efficiently chill your room. Installing an excessively large air conditioner, on the other hand, will increase the total cost of your utility bills. Finding the ideal unit for your home necessitates some research, but we assure you it isn't as difficult as it appears. We've put up a step-by-step guide to assist you to figure out what size air conditioner you need for your home.

**What does BTU mean?**

The British Thermal Unit (BTU) is an acronym for British Thermal Unit. This is a measurement system that calculates how much energy your unit can handle in order to chill your space. It's the amount of energy required to increase the temperature of one pound of water by one degree Fahrenheit at sea level, in technical terms.

British Thermal Units Per Hour (BTUh), on the other hand, refers to the number of BTUs of energy eliminated by your air conditioner in one hour. When determining the size of an air conditioner, British Thermal Units are most commonly used. You can estimate how many British Thermal Units your air conditioner should have by determining the square footage of your home.

1 BTU is equal to approximately 1.055 kJ and 1 BTU/h is equal to 0.293 W.

**What is a Ton (Tonnage)?**

While British Thermal Units are used to measure heat energy, a ton (also known as tonnage) is the entire amount of heat that an air conditioner can remove from your home in one hour. The terms British Thermal Units Per Hour and tons refer to the same thing and can be used interchangeably to describe the cooling capability of an air conditioner during an hour period.

Tonnage ratings are usually expressed in. 5-ton increments. Residential air conditioners are often rated at 1.5, 2, 2.5, 3, 3.5, 4, 4.5, or 5-ton capacities. The number of tons you'll require depends on a number of factors. For every 400 to 1,000 square meters of living space, a ton will be required. However, keep in mind that a high-tonnage air conditioner will cost more to run. We recommend choosing a Gree air conditioner when deciding on an air conditioner size for your home to save money on monthly power expenses.

**Average Cooling Capacity**

To determine an air conditioner's cooling capability over an hour, the metrics British Thermal Units Per Hour (BTUh) and tonnage (ton) are used. 12,000 BTUh equals one ton of cooling capacity. Residential air conditioners typically vary from 1.5 to 5 tons (18,000 – 60,000 BTUh) for homeowners.

For a light commercial application, a system that exceeds this range can be used. Smaller company structures, such as offices, free-standing retail buildings, restaurants, and banks, are referred to as light commercial construction.

**Calculate Your HVAC Unit Size**

There are numerous factors to consider when determining the amount of air conditioner you require for your home. For your home, we recommend performing __a Manual J calculation__. A Manual J calculation is a load calculation method that calculates the total amount of heating and cooling BTUs required for a home. A manual calculation can help you figure out how many BTUs your home needs for heating and cooling.

There are several approaches to this. You can hire an HVAC technician or an energy auditor to come into your home and inspect it and perform the calculations for you. You can also use a Manual J calculator to manually calculate these values. Let's take a look at all of the variables to consider while making air conditioning calculations.

**What is a SEER Rating?**

__Seasonal Energy Efficiency Ratio__ (SEER) is an acronym for a statistic called Seasonal Energy Efficiency Ratio. The energy efficiency of an air conditioner is measured using this metric. The total amount of cool air produced by a central air conditioning system during the summer season is divided by the total amount of electricity used to get the SEER rating. This is a crucial component in assisting homeowners in selecting the appropriate air conditioner size. The SEER ratings of two air conditioners with the same cooling capacity can be drastically different. That's why it's critical to verify your air conditioner's SEER ratings.

The minimum SEER for air conditioners is 13, the most recent energy-efficient air conditioners on the market have SEER ratings ranging from 13 to 21. The effectiveness of your system will also differ depending on the size of your home, existing ductwork, and other factors.