air conditioner capacity and room size
What size air conditioner do I Need?
Between 300–350 ft² or about 30 m². If the room is higher than 8 feet, however, you need to add 1000 BTU per foot over that height. How do I calculate what air conditioner size I need? To estimate the air conditioner size you'd need to cool a specific room: Measure the square footage or area in square meters of the room.
How do air conditioner sizes work?
The air conditioner sizes (BTU & Ton) are rounded to the actual common air conditioner sizes rather than just the result of the calculated cooling capacity. Hence, you can conveniently match the exact air conditioner based on the square footage of any room, house or home.
How do you calculate a central air conditioner size?
For a central air conditioner, you’ll first find your home’s square footage by multiplying the length of each room by its width, then adding them all together. Next, multiply the total square footage by 20 to see how many BTUhs are needed to cool your space. Energy Star recommends making the following adjustments to get the best size:
Does room size affect air conditioning capacity?
But although room size is an important consideration, every home is different and there are actually many other factors that will affect your air conditioning capacity requirements. "Take some time to assess the room and figure out which size air conditioner you need," says CHOICE's air con expert Chris Barnes.
How to Size Your Air Conditioner
Air conditioner size doesn’t refer to the unit’s measurements, but rather its cooling capacity. Air conditioners are measured in British thermal units (BTUs) or British thermal units per Hour (BTUh).One ton of air conditioning removes 12,000 BTUs of heat per hour. Put another way, an air conditioner needs 20 BTU to control each square foot of livin
What Size Air Conditioner Do I Need?
The size of air conditioner you need depends on your home’s square footage. The exception is if you’re purchasing a window air conditioner; see below for those instructions. For a central air conditioner, you’ll first find your home’s square footage by multiplying the length of each room by its width, then adding them all together. Next, multiply t
Other Factors That Affect Air Conditioner Size Requirements
Square footage isn’t the only thing that affects AC unit size. The following factors can vary the numbers slightly: 1. Ceiling height:AC size calculations are generally designed for ceilings that are 9 feet tall, which is the average for homes built today. Add another one or two BTUs if you have a vaulted or high ceiling exceeding 9 feet. 2. Climat
What Are BTUs?
BTU stands for British thermal unit. This is the amount of energy that’s required to increase the temperature of a pound of water by one degree Fahrenheit. BTUh refers to British thermal unit per hour, which measures an air conditioning unit’s cooling ability in one hour, also known as tons. You don’t need to be an expert in the science of thermal
What Is A Seer Rating?
SEER stands for Seasonal Energy Efficiency Ratio. A SEER rating is the ratio of the cooling output of an AC system over an average cooling season divided by the total energy used. More simply, a SEER rating represents how much energy and money the unit requires to operate effectively over one year. The less energy the unit uses to produce the right
How to Save Money on Air Conditioning
Today’s federal energy standards require higher energy efficiency than in the past, making them cheaper to run. Look for an Energy Star label with an energy-efficiency ratio (EER) of 10 or higher to ensure an efficient unit. The higher that number, the lower your operating costs. Aside from that, use the following tips to improve or prolong you uni
How to Hire A Professional
There are a few things homeowners should know when choosing the right HVAC contractor. 1. Require proof of insurance and licensure from the Contractors State License Board. 2. Ask about experience and training, particularly with the type of unit you have. 3. Request a home evaluation first to get an itemized estimate. 4. Get references or read onli
Our Conclusion
Not getting the right size air conditioner can lead to an uncomfortable home, higher energy costs, mold, or a cooling system that doesn’t last as long as it should. Take your time when shopping for a new air conditioner. Measure your space’s square footage accurately and calculate BTUs carefully. Look at the SEER rating and Energy Star evaluation.
Our Rating Methodology
The This Old House Reviews Team is committed to providing comprehensive and unbiased reviews to our readers. This means earning your trust through transparent reviews and data to support our ratings and recommendations. Our rating system for HVAC providers is on a 100-point system based on seven factors: 1. System cost (20 points):We determine each
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