13 Types of Air Conditioners (2025) | How to Choose

Sep 8th 2025

13 Types of Air Conditioners & Guide to Choosing the Right One (2025)

Types of air conditioners comparison guide 2025
A quick overview of residential and light-commercial AC systems with pros/cons and best-fit use cases.

From simple window units to multi-zone ductless systems and rooftop packages, today’s air conditioning options cover every space and budget. This guide explains 13 common AC types, who they’re best for, and how to choose confidently. When you’re ready to install or maintain your system, shop our Mini Split Parts, HVAC Tools, Installation Kits, and Accessories for fast dropship delivery.


Quick Comparison

Type Typical Capacity Install Complexity Best For
1) Window 5k–12k BTU Low Small rooms, rentals
2) Portable 8k–14k BTU Low Temporary cooling
3) Through-the-Wall / PTAC 7k–15k BTU Medium Hotels, apartments
4) Mini Split — Single Zone 9k–24k BTU Medium Add-ons, garages
5) Mini Split — Multi-Zone 18k–48k BTU+ Medium–High Whole-home zoning
6) Ceiling Cassette (Ductless) 9k–24k BTU Medium Open rooms, clean look
7) Concealed Duct (Ducted Mini) 9k–36k BTU High Hidden install, short ducts
8) Ceiling Suspended 18k–36k BTU Medium Shops, long throws
9) Floor-Standing 9k–24k BTU Low–Medium Limited wall space
10) Central Split (Ducted) 2–5 tons High Whole house with ducts
11) Packaged / Rooftop (RTU) 3–20 tons High Light commercial
12) VRF / VRV 3–30+ tons High Large multi-zone buildings
13) Evaporative (Swamp Cooler) 2–5 tons equiv. Medium Dry climates

1) Window Air Conditioners

Affordable and easy to install, window units cool a single room with minimal setup. Modern models include timers and Wi-Fi control. Pros: low cost, plug-and-play. Cons: blocks window, higher noise.

2) Portable Air Conditioners

Roll-in convenience and simple venting. Best for renters or temporary spaces. Expect slightly less efficiency than window units.

3) Through-the-Wall / PTAC

Wall-sleeve systems commonly used in hotels and apartments. They offer heating options and simple service access.

4) Mini Split — Single Zone

Quiet, efficient cooling and heating for one room or addition. Ideal where ductwork is impractical. Explore Fujitsu for premium comfort and reliability, and stock up on Mini Split Parts and Installation Kits.

5) Mini Split — Multi-Zone

One outdoor unit powers multiple indoor heads—perfect for multi-room comfort with independent temperature control.

6) Ceiling Cassette (Ductless)

Flush-mounted indoor units distribute air evenly from the ceiling. Great for open living areas and retail spaces.

7) Concealed Duct (Ducted Mini)

Low-profile air handler hides in a soffit or closet, feeding short duct runs for discreet room supply/return. Plan for proper static pressure and condensate management. Use HVAC Tools and Drain Kits for a clean install.

8) Ceiling Suspended

Surface-mounted, high throw—works well in shops and long rooms where wall space is limited.

9) Floor-Standing

Compact footprint with convenient service access; useful when wall-mounting isn’t possible.

10) Central Split (Ducted)

The classic whole-home system paired with a furnace or air handler. Requires ductwork and professional installation. Keep performance high with regular filter changes and Accessories.

11) Packaged / Rooftop Units (RTU)

All-in-one equipment—common on retail and office roofs. Straightforward service access, ideal for light commercial.

12) VRF / VRV Systems

Advanced multi-zone technology modulates refrigerant flow for high efficiency and precise control. Best for larger buildings with diverse load profiles.

13) Evaporative (Swamp Coolers)

Use water evaporation to cool air efficiently in dry climates. Low energy draw but adds humidity—less effective where it’s muggy.


How to Choose the Right AC

  • Room size & load: Rough guide: ~20 BTU per sq. ft. (adjust for ceilings, sun, occupancy).
  • Existing ducts: If you have none, consider mini split options.
  • Climate: Dry regions can use evaporative cooling; humid areas benefit from traditional refrigeration.
  • Noise & aesthetics: Mini split wall mounts and cassettes run quiet and look clean.
  • Install complexity: DIY-friendly units exist, but pro installs protect warranty and performance.
  • Maintenance & parts: Choose brands with accessible service and readily available OEM parts.
  • Controls & efficiency: Inverter systems, smart thermostats, and proper sizing cut energy costs.

Recommended Brands

  • Fujitsu — premium ductless comfort, quiet operation.
  • Panasonic — efficient multi-zone options and cassettes.
  • Friedrich — reliable room AC and ductless solutions.
Air conditioner types side-by-side comparison chart
Comparison snapshot of complexity, efficiency, and best-fit spaces.

Essential Tools & Supplies

Bottom Line

Start with your space and comfort goals, then match the system to your budget and installation constraints. For dependable parts, tools, and brand guidance, HVACProSales.com has you covered.


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