To Choose the Best AC Unit for your Home, determine the square footage (size) of the single room (or whole house) you want to cool, the number of rooms you need to cool, your financial budget, and your energy efficiency goals.
Once these quick facts are determined, selecting the best home air conditioner is easy. Let’s go ahead and follow those steps now;
1) How to Calculate BTUs Required for Your Home:
BTUs (British Thermal Units) measure how much energy your air conditioner uses to remove heat from your home over one hour.
The Level of BTUs in AC Units is an important measurement that will help you determine the kind of air conditioner you need for your home size.
Open and follow this AC Sizing Chart to calculate your home’s square footage and zone location, and determine the proper AC unit for your home.
2) What is the Best Type of Air Conditioner for My Home?
These are the Four Most Popular Types of Air Conditioners* for homes:
- Window Air Conditioner – (Least Expensive – Limited to One Room)
- Portable Air Conditioner – (Portable on wheels – Best For Multiple Room Use)
- Mini-Split (Ductless) AC – (Best For Apartments and Large Rooms)
- Central AC – (Most Expensive – Best for Large Homes or Multi-Story Homes)
*Variations of less popular air conditioning options include; Heat pumps, Smart Air Conditioners (Functions controlled by Smart Phone App), and Geo-Thermal systems.
However, this article will focus on the four best types of AC used in homes across the U.S.
There are many different types of air conditioners on the market, each with advantages and disadvantages.
Let’s look at the top-rated air conditioners and determine What Size AC you require and Which Type of air conditioner is best for your needs:
1) Window Air Conditioners
Window AC units are typically the least expensive Air Conditioners to buy, but they deliver the least efficiency and cooling capacity.
The Best AC Wall Units, like the Midea 8,000 BTU Window AC unit, include an insulated window trim kit, quiet operation (for conversation and sleeping), and a remote control or smartphone app.
Homeowners with some DIY experience (and a Helper) – can install a Window Air conditioner in less than 30 minutes.
How To Install a Window Air Conditioner:
- Window air conditioners are the most affordable and common type. They are the most inexpensive to buy and easy to install, but cheaper models can be noisy and will only cool smaller rooms.
“BTU Requirements For Window Air Conditioner” By Room Size
- 150 to 350 square feet: 5,000 to 8,000 BTU
- 350 to 550 square feet: 8,000 to 12,000 BTU
- 550 to 1,050 square feet: 12,000 to 18,500 BTU
- 1,050 to 1,600 square feet: 18,500 to 25,000 BTU
Advantages:
- Low Cost
- Best Small AC Unit
- Easy to Install
- Requires No Floor Space
Disadvantages
- Limited Use to One Room
- Some HOAs and Apartments Don’t Allow Window AC units – Check before you Buy!
- Loud operation on Cheaper Models (Some Models provide a Decibel (DB) rating. Look for DB42 or under)
- Requires Proper Window Type for Installation. (Use for Double Hung Windows – Not Casement/Crank windows)
Editors Choice “Midea” – 8,000 BTU “Smart” Air Conditioner
Our Pick for the Best “Window Air Conditioner.”
CLICK HERE FOR DETAILS & PRICE >>>
2) Portable Air Conditioners
Portable AC units are inexpensive and can easily be moved from room to room.
There are two types of portable air conditioners: ventless and Vented. Having installed a vented AC unit in our Sunroom, I can verify that they work with temperatures reaching over 90 degrees in the summer.
Video How To Install a Portable AC – Vented Outdoors:
To vent a portable Air conditioner, you will need to install an AC window kit with an exhaust hose shown below:
Beware of Portable AC Models sold as “Ventless” Portable Air conditioners. These Evaporator Coolers (or Swamp Coolers) use a “water evaporator” pump (not air conditioning) to introduce cool air into a room.
Evaporator air coolers do not remove humidity or warm air from a room, as a portable air conditioner does, but they may be a “best option” for those without window access to vent hot air outdoors.
- Portable air conditioners: Portable air conditioners are an excellent option for people who don’t have the option of installing a window unit. They are more expensive than window units but also more versatile.
- Best RV AC Unit: A window air conditioner won’t work in an RV because RVs don’t offer typical window configurations. We recommend a portable air conditioner for RV use but ensure it is in place during travel. After all, portable ac units are “on wheels.
- Best 10,000 BTU Air Conditioner: Based on our reviews, a Portable 10,000 BTU AC unit is the best option. But remember, they are pretty loud to operate, so if you’re a light sleeper, opt for a smaller unit or even a tiny AC for the bedroom (use).
“BTU Requirements For Portable Air Conditioner” – By Room Size
- 150 to 350 square feet: 5,000 to 8,000 BTU
- 350 to 550 square feet: 8,000 to 12,000 BTU
- 550 to 1,050 square feet: 12,000 to 18,500 BTU
- 1,050 to 1,600 square feet: 18,500 to 25,000 BTU
Advantages:
- Affordable
- More Powerful BTU Rating than most Window AC Units
- Ventless Type Requires No Installation
- Portable – Use in any room
- Some Portable Units offer “Heating and Cooling” Option
Disadvantages
- More Expensive than Window AC Units
- Prevents use of Window (For Vented Portable AC Unit only)
- Loud. Similar or louder than Window AC Units
Editors Choice “Whytner” – 14,000 BTU Portable AC/Dehumidifier/Fan
See our Pick for the Best “Portable Air Conditioner.”
CLICK HERE FOR DETAILS & PRICE >>>
3) Mini-Split Air Conditioner
Another popular type of air conditioning system is the mini-spit or “ductless” system. Mini Splits are wall-mounted, highly efficient, and cool much larger rooms of up to 1,500 square feet.
Mini/Ductless AC Systems are sleek wall-mounted units that complement most home decors. They cost significantly more than Window or Portable AC units (but less than central AC), ranging from $800 for 12,000 BTUs up to $2,200 for 30,000 BTUs (Labor not Included).
The best Mini Split air conditioners include Heating and Cooling performance options and are the most energy-efficient ACs to own, delivering up to 30,000 BTUs of cooling performance.
The best Mini Split systems usually require professional installation, with refrigerant lines connected to an exterior AC condenser, wall-mounted brackets, and electrical wiring inside a home. We highly recommend hiring a licensed HVAC contractor.
- Ductless mini-splits: Ductless mini-splits are a newer type of air conditioner that is becoming increasingly popular. They are more expensive than window or portable units, but they are also more efficient. They can be installed in any room, even if there is no window.
“BTU Requirements For Mini-Split Air Conditioner” – By Room Size
- 150 to 250 square feet: 6,000 BTUs
- 300 to 350 square feet: 7,000 BTUs
- 350 to 550 square feet: 8,000 to 12,000 BTUs
- 550 to 700 square feet: 14,000 BTUs
- 1,000 to 1,200 square feet: 21,000 BTUs *
*Note: Mini-Split/Ductless AC Systems can be installed in “Mulitple Zones.” With this option, your professional can install a wall-mounted Mini-Split unit in every room required, then connect it to an appropriately sized outdoor AC condenser.
Advantages:
- Wall Mounted – Saves Floor Space
- Quiet AC Unit to Run
- Most Energy Efficient AC
- Dependable Air Temperature Control
- Include Heat Pump for Heating Season
Disadvantages
- Significantly More Expensive than Window AC or Portable Units
- Requires Professional Installation
- Not Designed to Cool Entire Home
Senville “Leto”: 12,000 BTU “Smart” Mini-Split System
SEE OUR PICK FOR THE BEST MINI-SPLIT A/C SYSTEM
CLICK HERE FOR DETAILS & PRICE >>>
4) Central Air Conditioners
Central Air Conditioners are the most expensive but practical Air Conditioning system for any home. Central AC units require an exterior AC condenser, which circulates cool air through the house via a forced air system.
A licensed HVAC Professional is required to install a Central Air Conditioning System.
- Central air conditioners: Central air conditioners are the most expensive type of air conditioner, but they are also the most efficient. They cool your entire home, so they are a good option for large homes or homes with multiple levels.
BTU Requirements: Central Air Conditioning Systems
Central Air Conditioning Systems are typically installed in significant, multi-story, single-family homes.
Because of the demand for this cooling system, it is essential to know the recommended BTU Range – based on the Zone you live in and the size (SEER rating) your home requires.
Once you know the Square Footage of your home and the U.S. “ZONE” you live in, Use this AC Selection Tool to determine your House’s Air Conditioning Requirements.
Advantages:
- Highly Efficient AC System
- Quiet Operation
- Full Distribution to all (Ducted) Rooms in Home
- Dependable Air Temperature Control
- Controlled by Central Thermostat
Disadvantages
- Significantly More Expensive than Mini Split Systems
- Requires Professional Installation
- Highest Cost AC System
- Requires Outdoor Air Condenser Location
- Requires Separate Forced Air (Furnace) System for Heating
If you are curious about what size (SEER Rating) best suits the size of your home and your budget, check out the “Before You Buy a Central Air Conditioner (Video) below:
Our Pick for the Best “Central AC Unit (or See a highly-rated local HVAC Contractor)
Goodman- 2.5 Ton/36,000 BTU – 14 SEER Air Conditioner
CLICK HERE FOR DETAILS & PRICE >>>
Frequently Asked Questions (FAQ)
Q: What are the 4 Types of Air Conditioners For a Home?
A: The four best air conditioners for a home are Window, Portable, Mini-split, and Central air conditioners.
Q: What Is a “SEER Rating” for Air Conditioning?
A: SEER stands for Seasonal Energy Efficiency Ratio in the heating and cooling industry. It is reserved for describing Mini-Split and central air conditioning systems only.
SEER rating defines the required cooling output of an AC system over an average cooling season, divided by the total energy used.
The short answer: SEER ratings reflect the amount of money spent running an air conditioning system over an entire cooling season and its maximum cooling efficiency.
Mini-splits deliver an average SEER rating of 15-18, whereas central air conditioners average about 16 SEER. More expensive central air systems can deliver up to 23 SEER.
To estimate the cost of an Existing AC system vs. a New one, you can use the SEER Savings Calculator from Seer Savings dot com.
Q: How Much Electricity Do Air Conditioners Use?
A: Electrical usage for air conditioners varies based on the Type and Size of the Air Conditioner you are considering.
Window Air Conditioners use between 500 and 1400 watts depending on the AC unit size required, 400 or 1000 square feet, respectively, for the wattage shown above.
Determine the size of the room you wish to cool, by multiplying the width x length of the room. Then buy the best AC wall unit for that size of room*.
*Room Size Example: The bedroom is 10 feet x 8 feet = 80 square feet, under 150 square feet. In this example, your best AC window unit would be a 5,000 BTU air conditioner.
Portable air conditioners use between 2500 and 4000 watts per hour, depending on the size of the portable AC unit.
Mini-split air conditioners use 700-2000 watts per interior unit per hour. These ” ductless ” air conditioners use one outdoor unit (condenser) and are connected to one single or multiple interior wall-mounted air conditioners. They are designed to cool one room per interior unit.
Central air conditioners are the most energy-efficient AC types you can own and operate. A central AC system uses approximately 1,000 watts of electricity per Ton* (or Size).
*Central air conditioners are typically installed with cooling capacities of 2, 2.5, and 3 tons. For example, a (2-ton) central air conditioner requires approximately 2000 watts of cooling capacity per hour of runtime.
Note: The Best central air conditioning system would be manufactured with high-efficiency features, reducing operation time and improving cooling efficiency.
Conclusion: What to Look For Buying an Air Conditioner:
- BTU rating: The BTU rating measures an air conditioner’s cooling capacity. The higher the BTU rating, the more influential the air conditioner.
- Energy efficiency: Air conditioners are rated on a scale of 1 to 15, with 15 being the most efficient. The more efficient the air conditioner, the lower your energy bills.
- Noise level: Air conditioners can be noisy, so choosing one quiet enough for your comfort is essential.
- Features: Some air conditioners have additional features, such as remote controls, timers, and dehumidifiers. Consider which features are important to you before making a purchase.
With so many different air conditioners on the market, choosing the right one for your home can be difficult. Considering your needs and budget, you can find the perfect air conditioner to keep you cool and comfortable all summer.
Additional Tips for Choosing the Best Air Conditioner for Your Home:
- Get multiple prices from different retailers online or in big box stores.
- Search Online to find the best place to buy a room air conditioner (window or portable).
- Hiring a professional is the best way to install a Mini-Split or Central AC System.
- Read the reviews of different air conditioners before making a purchase.
- Ensure the air conditioner is the right size for cooling one room or an entire home.
- Consider Air conditioning energy efficiency (Watts used or SEER Rating for Central AC)
- Choose an air conditioner with the features most important to you.
