AIR CONDITIONING UNIT COMPARISON: WHICH ONE SHOULD YOU GET?
If you’re dealing with an air conditioning unit that breaks down at random or can’t seem to cool a room fully, it’s time to consider a replacement. There are several dependable air conditioning systems on the market to choose from, like central units and ductless mini-splits.
Choosing the right type will give you the best balance between comfort and cost. Some systems are better for residential areas, while others are tailored for commercial settings. Our air conditioning unit comparison guide will look at every last detail you need to know, from energy-efficiency ratings to useful features.
Want to know if we serve your area? Give us a call to talk with one of our technicians.
KEY TAKEAWAYS
The most popular AC systems today are central, multi-zone, ductless mini-splits, variable speed, packaged, and rooftop units.
We recommend homeowners use central, ductless mini-splits, or variable speed models.
We recommend business owners use packaged, multi-zone, or rooftop models.
You may get a tax write-off with an energy-efficient AC through the Energy Efficient Home Improvement Credit.
TABLE OF CONTENTS
THE MOST POPULAR AC SYSTEMS AND TYPES
RESIDENTIAL AC COMPARISON: BEST USE CASES
COMMERCIAL AC COMPARISON: BEST USE CASES
3 RED FLAGS TO KEEP AN EYE OUT FOR
THE MOST POPULAR AC SYSTEMS AND TYPES
AC System Type | Best For | Why It’s Popular | What to Keep in Mind |
|---|---|---|---|
Centralized AC System | Homes and buildings with existing ductwork | Comprehensive cooling throughout the home or business | Ductwork needs to be in good condition for the system to cool efficiently |
Packaged AC System | Businesses or properties with limited indoor space | Keeps major cooling components outside, which saves space indoors | Often works best for commercial settings or larger properties |
Ductless Mini-Split | Homes, additions, older buildings without ductwork | Provides room-by-room comfort without needing ducts | Larger rooms or spaces may need multiple units |
Multi-Zone System | Different comfort needs in separate areas | Connects multiple indoor units to one outdoor unit for flexible zoning | Installation planning matters so each zone gets the right cooling |
Variable Speed AC | Homeowners who want better comfort control and energy efficiency | Adjusts cooling output more gradually instead of running only at full power | Usually costs more upfront than a basic single-stage system |
Rooftop Unit | Commercial buildings, apartments, and industrial facilities | Keeps equipment out of the way while supporting daily cooling needs | Access and layout should be reviewed before installation |
While there’s still a time and place for portable air conditioners and wall units, they’re not reliable enough for large homes and businesses. The following AC installations remain popular today for their size, longevity, and practical features.
CENTRALIZED SYSTEM
When most people think of an air conditioning system, the centralized model is one of the first to pop up. There are two central air conditioning unit comparisons: split systems and packaged systems. A split system uses an indoor and outdoor unit, while a packaged system keeps all the equipment in one place.
Overall, a centralized system works by connecting to a building’s ductwork to consistently distribute cool indoor air.
PACKAGED
Many businesses prefer packaged air conditioning because of how well it accommodates limited space. Unlike ductless mini-splits or centralized split systems that have multiple working parts, a packaged AC consolidates everything.
DUCTLESS MINI-SPLIT
If you don’t have ductwork, or your current ductwork is old and leaky, consider a ductless mini-split. A technician can equip different rooms in the building with these small air conditioners so you can still enjoy steady cooling. The ability to control the temperature in each room independently is called ‘zoning’.
Ductless mini-splits are also useful if you live in a large home and have family members with different cooling preferences.
MULTI-ZONE
A multi-zone system is similar to a ductless mini-split, also offering zoning features to fully customize each room. However, while a mini-split has an indoor and outdoor unit for each installation, a multi-zone only uses one outdoor unit. A technician will then connect this single outdoor unit to several indoor units, a useful feature if you’re low on space.
When making air conditioning unit comparisons, homeowners and business owners often turn to multi-zone systems, since there’s less equipment to keep track of.
VARIABLE SPEED
Most air conditioning systems have a default speed setting when you turn them on. A variable speed system lets you choose from different fan settings, such as 30% or 50%.
This handy feature means you can customize your comfort levels while keeping your energy bills a little lower. Since this AC is a modern variant, it comes with smart features that can optimize fan speeds according to outdoor temperatures or humidity levels.
ROOFTOP UNITS
Rooftop units are a common commercial solution for daily cooling, often found in retail shops, apartment complexes, and industrial facilities. You can choose between ductless set-ups for older buildings or a chiller system.
Chiller systems are well-known for their ability to cool down very large areas. They come in different varieties, like water-cooled and air-cooled.
RESIDENTIAL AC COMPARISON: BEST USE CASES
Most AC systems start to show their age between eight to 10 years. If you’re a homeowner considering repairing or replacing an old AC, try these options. You may also get a tax write-off through the IRS Energy Efficient Home Improvement Credit.
Residential AC Type | Efficiency | Climate | Staging | Longevity | Best Use Cases |
|---|---|---|---|---|---|
Central | SEER rating of 16 to 18 | Compatible with most climates due to consistent, intense cooling | Single-stage, multi-stage, variable | 10+ years | Small, medium, and large homes |
Ductless Mini-Split | SEER rating of 20+ | Ideal for dynamic or subtropical climates with fluctuating temperatures | None | 10 years | Smaller and older homes with no ductwork or leaky ductwork |
Variable Speed | SEER rating of 20+ | Well-suited to areas with hotter summers | Variable | 10 to 15 years | Modern homes in very hot climates |
COMMERCIAL AC COMPARISON: BEST USE CASES
Commercial needs focus more on longevity and daily cooling. While central air conditioning works well for homes and businesses, we recommend a few different air conditioning units.
Commercial AC Type | Efficiency | Climate | Staging | Longevity | Best Use Cases |
|---|---|---|---|---|---|
Central | SEER rating of 16 to 18 | Compatible with most climates due to consistent, intense cooling | Single-stage, multi-stage, variable | 10+ years | Well-suited to small, medium, and large buildings |
Multi-Zone | SEER rating between 14 - 16+ | Well-suited to humid, subtropical climates with different cooling needs | Single-stage, double-stage, or variable | 8 to 10 years | Ideal for businesses with limited outdoor space |
Rooftop | SEER rating of 16+ | Ideal for hot, arid, or somewhat temperate climates | Single-stage or variable | 10 years | Best for large commercial settings or warehouses |
Packaged | SEER rating of 14+ | Well-suited to warmer climates | Single-stage or double-stage | 10 to 12 years | Great for buildings with limited indoor space |
KEY COMPARISON FACTORS
AC efficiency comparisons tell you how compatible your AC is with the unique details of your life. They help you understand your system’s energy usage and climate compatibility so you get a unit that satisfies your needs for years.
EFFICIENCY RATINGS
A SEER rating (short for Seasonal Energy Efficiency Ratio) tells you how well your air conditioning matches your energy output over an entire cooling system. It divides the cooling output of your unit by your watt-hours. You can also look at an EER rating for peak cooling periods.
The minimum standard for SEER ratings has evolved from 10 to 13 over the years. Most air conditioners today boast a SEER rating of at least 16, with anything higher considered excellent.
As you consider each air conditioning SEER comparison, you can also look for ENERGY STAR certification. These ratings mean the unit has undergone additional third-party testing for energy efficiency.
SYSTEM STAGES
Air conditioning comparisons frequently point out different stages, referring to the fan speeds you can choose while cooling. There are single-stage, double-stage, and variable speed air conditioners.
A single-stage only has one setting, while a double-stage lets you choose two. Variable speeds give you the most control, with several speeds that can change depending on humidity or outdoor temperatures.
CLIMATE SUITABILITY
Central air conditioning units tend to suit most climates, while ductless mini-splits are better suited to warmer climates with lower humidity. Choosing the right AC system means analyzing your climate and weather patterns, as these can make or break your comfort levels.
3 RED FLAGS TO KEEP AN EYE OUT FOR
When reviewing your air conditioning unit comparisons, keep a close eye out for red flags.
Unclear warranties that don’t explain your coverage well
Incompatible size, such as too small for a large area or too large for a small room
Extreme disparities between your estimate and the final cost
INSTALL A NEW AC WITH BLUE DOT SERVICES
Our AC comparison chart is just the beginning. You still need an in-person inspection of your home or business, but we can help with that. We bring an experienced team of technicians and today’s most trustworthy brands to match you with the AC you’ve always needed.
All of our AC installations come with flexible financing options, ongoing discounts, and our Exceptional Service Guarantee.
Ready to explore your AC system options further? Get a free quote by filling out our online form.