Introduction
Hey, Mike Sanders here. When it comes to through-the-wall air conditioners, you want a unit that’s reliable, energy-efficient, and fits your home’s unique needs. But with dozens of brands and hundreds of models out there, the choices can get confusing fast.
I’ve done the legwork to help you cut through the noise. In this guide, I’ll cover the leading brands you’ll find at The Furnace Outlet’s through-the-wall AC collection, explain what makes each stand out, point out any downsides, and share what you should realistically expect.
Let’s dive in.
🔥 Why Brand Matters in Through-The-Wall AC Units
Through-the-wall ACs have to handle unique challenges: they need to be energy-efficient, quiet, durable, and often fit into specific wall sleeve sizes. A trusted brand ensures quality manufacturing, dependable warranties, and parts availability — all critical when you want your unit to last years without constant repairs.
1. Goodman Through-The-Wall Air Conditioners
Overview
Goodman is a major player in residential HVAC, well-known for offering solid, affordable, and reliable units. Their through-the-wall air conditioners feature R-32 refrigerant for better efficiency and lower environmental impact.
Pros
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Competitive pricing for the features offered
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High Energy Efficiency Ratios (EER) — Goodman units often meet or exceed Energy Star standards
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R-32 refrigerant use, which is more eco-friendly than older types
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Backed by a strong manufacturer warranty and good customer support
Cons
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Design is functional but not flashy — if aesthetics matter, these are basic but clean
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Some users report the fan noise is slightly louder than premium brands
What to Expect
Goodman units are workhorses. Expect reliable cooling with good energy efficiency and straightforward installation. You won’t get a ton of smart features, but you do get solid performance and peace of mind.
For a deeper dive into Goodman’s R-32 technology and what it means for homeowners, check out this EPA refrigerant guide.
2. Friedrich Through-The-Wall Air Conditioners
Overview
Friedrich is one of the pioneers in through-the-wall ACs with decades of experience. They are known for quiet operation, high quality, and a variety of models suited for different budgets.
Pros
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Very quiet operation, great for bedrooms and living spaces
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Multiple cooling capacities with a range of sizes
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Advanced air filtration options on many models
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Attractive design and user-friendly controls
Cons
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Price point is higher than basic brands like Goodman
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Some models have complex installation requirements — professional installation recommended
What to Expect
Friedrich units are built for comfort and quiet. If noise is a big concern for you, Friedrich’s reputation makes them worth considering. Plus, their advanced filtration options can improve indoor air quality, a bonus for allergy sufferers.
If you want to learn more about how indoor air quality is improved by AC filters, the EPA indoor air quality resources are an excellent reference.
3. Koldfront Through-The-Wall Air Conditioners
Overview
Koldfront offers budget-friendly through-the-wall AC units that focus on essential features without a premium price tag.
Pros
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Affordable pricing for smaller rooms or budget-conscious buyers
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Easy-to-use controls with basic functionality
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Compact design fits standard wall sleeves
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Energy Star certified models available
Cons
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Limited advanced features (no smart controls or advanced filtration)
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Some users report durability issues after several years
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Noise levels moderate but not as quiet as Friedrich
What to Expect
If you need straightforward cooling on a budget, Koldfront units deliver solid value. They’re best for smaller rooms or second homes where you don’t need fancy features. Expect decent performance but plan to replace after the typical 7-10 year lifespan.
4. LG Through-The-Wall Air Conditioners
Overview
LG brings advanced tech and sleek design to through-the-wall ACs. They often include smart features and modern conveniences.
Pros
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Smart Wi-Fi controls for remote operation via smartphone apps
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Sleek, modern designs that look good in any room
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Quiet operation with inverter technology on select models
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Good energy efficiency and R-32 refrigerant use
Cons
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Pricier than entry-level units
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Installation can be complicated; professional help is usually necessary
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Repairs and parts can be costly depending on your location
What to Expect
LG units blend modern tech with solid cooling performance. If you want smart controls and quiet operation and don’t mind paying a bit more, LG is a great choice.
For more on smart AC tech, CNET’s guide to smart air conditioners gives a good overview.
5. Frigidaire Through-The-Wall Air Conditioners
Overview
Frigidaire is a long-established name in home cooling, known for dependable, mid-range priced units with simple features.
Pros
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Solid reliability and good cooling power for price
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Simple, intuitive controls and basic remote included
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Good customer service and warranty options
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Units designed to fit common wall sleeve sizes
Cons
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Limited advanced features and no smart connectivity
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Moderate noise levels, not the quietest option
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Design is plain compared to LG or Friedrich
What to Expect
Frigidaire’s through-the-wall ACs are straightforward and dependable. They’re a great choice if you want reliable cooling without breaking the bank or worrying about bells and whistles.
How to Compare These Brands
When choosing, consider:
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Room size and cooling needs: Match BTU capacity carefully (see my other guide on choosing the right size)
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Budget: Goodman and Koldfront are budget-friendly; Friedrich and LG are more premium
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Noise sensitivity: Friedrich and LG lead on quiet operation
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Smart features: LG offers smart controls, others mostly manual or basic remotes
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Energy efficiency & refrigerant: Look for R-32 refrigerant and high EER/SEER ratings
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Installation constraints: Check wall sleeve size and professional installation requirements
What to Expect From Your Purchase
No matter which brand you pick, expect:
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A unit that cools effectively if sized properly
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Some noise — through-the-wall units won’t be as silent as central AC, but quieter brands like Friedrich minimize disruption
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Regular maintenance (clean filters, check seals) to keep performance high
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Lifespan of 8-12 years with good care, depending on usage and maintenance
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Manufacturer warranties from 1 to 5 years, often extendable
Final Thoughts
There’s no one-size-fits-all answer. Your ideal through-the-wall air conditioner depends on your priorities: budget, noise tolerance, features, and the size of your space.
If you want tried-and-true reliability without bells and whistles, Goodman or Frigidaire are solid bets. For quiet, premium comfort, Friedrich and LG shine. For tight budgets and simple needs, Koldfront does the job.
At The Furnace Outlet, you can find all these brands and get expert advice on what will work best for your home.
