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Air Conditioner Dimensions (Standard Unit Sizes)

See the different air conditioner dimensions with standard window, wall, central, mini-split & portable air conditioner sizes and measurements for popular AC brands.
Different types of air conditionerPurchasing an air conditioning unit for the home is more necessary than a luxury because of the growing unpredictability of the seasons and climate. With all the options in the market right now, it’s easy to get overwhelmed and more challenging to figure out what you need. Luckily once the choices and room size is narrowed down, it will be easy to figure out what we need. 

There are a lot of air conditioning models on the market, and size will vary according to the brand, price, and appearance. Size is essential and will depend on the planned location and added features of the AC unit.

Standard AC Unit Dimensions 

Standard AC unit dimensionsThere is an expression that the bigger the air conditioner, the better it will be at cooling the room, but that is not the case entirely. Aside from lowering the temperature of a room, AC units also remove air moisture, and a larger AC for a smaller room will leave the room cold and dry. 

If the cooling capacity is appropriate for the room size, the AC will do a better job at managing temperature and humidity in a room. This is also the case for a unit too small for a space, which will struggle to lower the room’s temperature. 

The standard AC dimension is for a room of 100 to 150 square feet and will have a BTU of 5000. Most of these AC units will come in sizes of 16 inches or 41 centimeters for the width and a height of 12 inches or 30 centimeters (window mounted unit). They may seem small but powerful enough to effectively a cool space of 150 square feet. 

Standard Wall Air Conditioner Size 

Standard wall air conditioning sizeAside from the basic window air conditioning unit, a homeowner can choose to install a wall air conditioner, also known as a thru-wall AC unit, in their home. A wall air conditioner can even work more effectively since they seal the room in an airtight manner.

The main difference between the two will come in the way they are installed, and the venting technique done during installation. There are many sizes available for a wall air conditioner since the perfect one for a home will require knowledge of the size of the room.

The standard size for most rooms in the house range from 100 to 250 square feet. The perfect AC unit for 100 to 250 square feet rooms will have a BTU of 5000 to 6000. Sizes for these units will vary but will range from 1 to 1.5 tons. 

Standard Casement Air Conditioner Size 

Casement window opening size for air conditionerIf a homeowner has casement windows in their home, the best air conditioning units to get are casement or vertical air conditioning units. These AC units are characterized by their narrow widths and taller height, as opposed to the broader and shorter look of a standard window air conditioner.

The minimum window width for a casement air conditioning unit is a window opening of at least 15 1/2 inches or 39 centimeters.

One of the best in the market are made by Frigidaire, and one of their most famous unit of casement AC has a height of 20 1/4 inches or 51 centimeters, a narrower width of 14 1/5 inches or 36 centimeters, and a unit depth of 23 1/2 inches or about 60 centimeters. 

Standard Window Air Conditioner Size

Standard window air conditioner sizeThe most standard AC system any homeowner can get is window air conditioners that can be easily installed in their rooms. However, the perfect size of window air conditioning unit they need will depend on the size of the room, whether they are installing it in a smaller kid’s room or a bigger space like the primary bedroom. 

The standard window AC units are the 1-ton units, and most of them will have a height of 15 inches or 38 centimeters, a width from side to side of 24 inches or 61 centimeters, and a depth from front to back of 22 inches or 56 centimeters.

This is close to the size of the standard AC units since they are small but mighty when it comes to cooling down an average-sized room. Visit our guide to window air conditioner dimensions here.

Standard Central Air Conditioning System Size

Sizing in terms of looking for the perfect air conditioning units will be measured by their cooling power more than their casing or physical size. So, a larger air conditioning unit will not always equate to a cooler air conditioning capacity.

What they are measured by instead is their BTUs or tonnage. Central air conditioners for a residential area will have AC units with a thermal capacity of 20000 to 50000 BTU.

Mini-split AC System Size

Air conditioner dimensionsA high-wall air handler for a mini-split system is generally 12 inches or 30 centimeters from top to bottom, 32 inches or 81 centimeters for the width from side to side, with a depth of 9 inches or 23 centimeters from front to back. 

At the same time, the heat pump placed on the outside of a home will have a height of 24 inches or 61 centimeters, a depth of 12 inches or 30 centimeters, with a width of 32 inches or 81 centimeters. Knowing the two is essential since both make up a mini-split AC system. 

There are also air handlers on the floor called low-wall air handlers, and they are generally 24 inches or 61 centimeters high, with a width of 29 inches or 74 centimeters and a depth of 8 1/2 inches or 22 centimeters. 

Standard Portable Air Conditioner Size

Portable Air Conditioner with dehumidifier

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If a homeowner wants a moveable and mobile air conditioning unit for their home, one versatile option for a cooling system is looking at portable air conditioners. Portable ACs are easy to install and mobile even for renting homeowners, and the deposit stays intact. 

One example is the Honeywell HJ5CESWK0, with a BTU capacity of 15000. This unit has a height of 18.9 inches or 48 centimeters, a width from side to side of 15.4 inches or 39 centimeters, and a depth of 30.7 inches or 78 centimeters. 

2 Ton Air Conditioner Dimensions 

Most 2-ton air conditioning units are heavier mini-split AC systems with an indoor AC unit and an outdoor compressor. Most of these units are installed near the ceiling or above a room’s doorway to ensure maximum airflow in every corner of a bigger space. 

Central Air Conditioner Dimensions 

Central air conditioner sizeCentral air conditioning units as the most extensive cooling and heating units you can find, primarily utilized to provide cooling and heating services for buildings and businesses. Since many of them are available in different sizes for length, width, and depth, most of these units are measured on how heavy they are for accurate measuring from 1 to 5 tons. 

Like window and split type air conditioners, homeowners and business owners are not required to get the biggest ones, and the perfect central air conditioning unit should match the size of the space.

For an area of 600 to 1000 square feet, get a 1.5-ton unit, while a bigger 2500 to 3300 square feet of space will be cooled by a 5-ton central AC unit effectively. If you reside in a two story house, temperatures may be much warmer on the second story. In this case ceiling fans may help circulate and pull cold air up so it can cool the upper level.

5000 BTU Air Conditioner Dimensions 

The smallest air conditioning unit anyone can find is the 5000 BTU window AC unit with a weight capacity of less than .5-ton. One of the smallest 5000 BTU AC units in the market is the LG LW6017R 5000 BTU unit. It has a length of 14.38 inches or 37 centimeters, a width from side to side of 17.31 inches or 44 centimeters, and a height of 11.13 inches or 28 centimeters. This unit will require a window opening of 21 to 35 inches or 53 to 89 centimeters. 

8000 BTU Air Conditioner Dimensions 

If you are looking for an air conditioning unit to cool a 350 square feet room, then look further than a window air conditioner with a cooling power or BTU of 8000. One example of this is the Frigidaire window-mounted AC with a height of 13 7/32 inches or 34 centimeters, a width of 18 1/2 inches or 47 centimeters, and a depth of 15 1/2 inches or about 39 centimeters. This AC size is sure to cool a space with the same area. 

Dimensions Of A 12000 BTU Air Conditioner 

Dimensions of a 12000 BTU Air Conditioner 

See this Air Conditioner at Home Depot [sponsored link]

If you are looking for an air conditioning unit to cool a 550 square feet room, then look further than a window air conditioner with a cooling power or BTU of 12000.

One example of this is the Frigidaire window-mounted air conditioner with a height of 14 1/2 inches or 37 centimeters, a width of 19 inches or 48 centimeters, and a depth of 21 1/2 inches or about 55 centimeters. This AC size is sure to cool a space with the 550 area. 

Window Air Conditioner Dimensions 

One of the most standard air conditioning units is the window air conditioner; they are not only cost-efficient but also provide the proper heat or coolness, given that the right size for the right room area is chosen.

For a bedroom with an area of 100 to 200 square feet, getting a window AC unit of around 5000 to 7500 BTU is enough to cool it. Still, other window AC units are going up to 14000 to 18000 BTU to cool a space of 550 to 700 square feet. 

Air Conditioner Compressor Dimensions 

Air conditioning with compressors is more often than not on the outdoor unit. They are the largest part of an air conditioning unit, and the enormous they get, the higher the BTU and the more powerful these air conditioning units are. 

Split systems are the ones with compressors outside of a home, and most will have a height of 16.5 to 23.6 inches or 42 to 60 centimeters and a width ranging from 26 to 31 inches or 66 to 80 centimeters. 

Bryant Air Conditioner Dimensions 

AC units are available with many features, some of which can even be energy-efficient to help the user save on their utility bills. One of those units is the Bryant AC unit.

One is the Bryant Single-Stage AC with a cooling capacity of 17 seers. This unit is 35 inches or 89 centimeters in length and width, with a height of 29 inches or 74 centimeters and a unit weight of 205 pounds. 

Carrier Air Conditioner Dimensions 

Carrier Installed Infinity Series Air Conditioner

Get this Air Conditioner at Home Depot [sponsored link]

Another authorized brand when it comes to AC units is Carrier. The Infinity 26 air conditioner is a famous unit that also helps cut the user’s utility bill while cooling the home efficiently.

This unit has an overall height of 47 inches or 119 centimeters, a length of 35 inches or 89 centimeters, and a product width of 35 inches or 89 centimeters. The AC unit weighs 339 pounds. 

Lennox Air Conditioner Dimensions

Lennox Installed Merit Signature Series Air Conditioner

Get this Air Conditioner at Home Depot [sponsored link]

Another cost-efficient and environmentally responsible AC for any home is the Lennox air conditioner. This AC unit has a product height of 29 1/4 inches or 74 centimeters, a width of 24 1/4 inches or 62 centimeters, and a depth of the same size as the width. 

RV Air Conditioner Dimensions

Like purchasing an AC unit for a room, choosing the right size for the entire RV area is the key to ensuring efficient cooling and heating capacity. Getting an RV AC with a BTU of 10000 might be too weak to cool the whole RV in the summer, while getting a BTU of 20000 might be overkill and can use up too much gas or electricity, so a unit at 15000 is suitable for almost all RV sizes. 

One example is the Domestic Brisk II, with a dimension of 29 by 27 by 13 inches or 74 by 69 by 33 centimeters. 

See more related content in our article about the types of home cooling system here.

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