
Note: Before you dive into the specific brand review, we highly recommend you to read our elaborate Central Air Conditioner Buying Guide in advance, there are several crucial steps you need to take before you even start to think about the brand.
Who is the manufacturer of Armstrong Air Conditioner
Armstrong Air Conditioning Inc. is a trade mark of Lennox International Inc. which is the world famous brand in home comfort. Lennox bought Armstrong in 1957 and this expanded its product line and took advantage of the well-established reputation of Armstrong as a quality manufacturer. Armstrong has since been producing different air conditioning systems which are durable and efficient.
Your Armstrong Air Conditioner is manufactured with precision and it is made with high standards of manufacturing at Lennox manufacturing plant. Lennox believes in sustainability and innovation, which means that your Armstrong AC is not only a reliable product but also incorporates the latest innovations in the cooling technology.
Armstrong Air Conditioner Cons
These are 4 common disadvantages of Armstrong central ac units:
- Few Choices: Your choice can be limited since Armstrong has limited models as compared to other leading brands in the industry. This drawback may influence the possibility to find the ideal solution to your particular needs.
- Costs: Although they are more economical at the beginning, the long-term reliability of certain units might result in higher maintenance expenses. Always remember that the cheaper initial cost may not necessarily translate to savings in the long run.
- Availability: You might not be able to find certified Armstrong technicians in some areas. This could increase the time taken to get service and repairs and this could affect your experience with the product.
- Warranty Terms: The warranty services offered by the company are not competitive as compared to the industry leaders. It is important to read the small print so that one knows what is covered and what is not
Armstrong AC Model Analysis
| Model | SEER | Sound Level | Compressor | Communicating |
|---|---|---|---|---|
| 4SCU23LX | 23 | 62 | Variable | Yes |
| 4SCU20LX | 20 | 72 | Variable | Yes |
| 4SCU18LS | 18 | 72 | Two-Stage | Yes |
| 4SCU16LS | 16 | 75 | Two-Stage | Yes |
| 4SCU14LE | 14 | 75 | Single-Stage | No |
| 4SCU14LB | 14 | 76 | Single-Stage | No |
| 4SCU13LE | 13 | 76 | Single-Stage | No |
Variable-Capacity Models
- 4SCU23LX: Achieves up to a 23 SEER rating, indicating high efficiency. This model is designed to work like a dimmer switch, offering precise cooling adjustments.
- 4SCU20LX: Also offers up to 20 SEER efficiency. Compatible with Comfort Sync® A3, this model ensures optimal cooling and energy-saving benefits.
- 4SHP18LX: Provides up to 20 SEER and 10 HSPF efficiency, compatible with the Comfort Sync® A3 Ultra-Smart Thermostat for enhanced control over your cooling system.
Two-Stage Models
- 4SCU16LS: This model offers up to 16 SEER efficiency. It’s part of the Pro Series™ and includes a two-stage scroll compressor for balanced performance and comfort.
Single-Stage Models
- 4SCU17LE and 4SCU16LE: Both models offer SEER efficiencies of up to 17 and 16 respectively. They are ENERGY STAR® certified and come with Omniguard® Total Corrosion Protection Technology.
- 4SCU14LB and 4SCU13LE/LB: These units provide up to 14 SEER efficiency with a dependable single-stage scroll compressor for consistent cooling.
Best Cost-Effective Armstrong Models For You
As we have discussed in our central air conditioner guide, the SEER is the most important parameter deciding the initial equipment cost and future energy savings.
Higher SEER Models can not always pay your money back. We developed a SEER Savings Calculator to help find a better balance between equipment cost and electricity cost. This tool can automatically load your local power rate and yearly cooling hours when using Chrome explorer. You can also adjust these inputs manually to get a more accurate result.
Armstrong Air Conditioner Prices By Model
In order to offer an objective and equal comparison, we set the baseline below:
Each model includes: 2.5-ton outdoor condenser, 1300-1400 CFM air handler, programmable air conditioner thermostat.
| Models | System Only | System Installed |
|---|---|---|
| Armstrong 4SCU20LX | $2,130 | $4,630 |
| Armstrong 4SCU16LS | $1,420 | $3,880 |
| Armstrong 4SCU14LE | $1,160 | $3,570 |
| Armstrong 4SCU14LB | $1,090 | $3,410 |
| Armstrong 4SCU13LE | $1,000 | $3,170 |
| Armstrong 4SCU13LB | $960 | $3,090 |
Armstrong Air Conditioner Prices By Size
Before installing your air conditioner, an HVAC contractor needs to size your system by “Manual J” calculation. This will take into accounts factors like where you live, how much insulation you have, windows types and directions, and everything else. Then you will get a right-sized central air conditioner ranging from 1.5-ton to 5-ton.
Don’t Overpay for HVAC Services – Call 888-894-0154 Now to Compare Local Quotes!
Each Unit includes: Armstrong 2.5-ton 16 SEER outdoor condenser, 1300-1400 CFM air handler, programmable thermostat.
| AC Unit Size | Home Size | System Only | System Installed |
|---|---|---|---|
| 1.5 ton | 600 – 1000 sf | $990 | $3,130 |
| 2 ton | 1001 – 1300 sf | $1,110 | $3,300 |
| 2.5 ton | 1301 – 1600 sf | $1,220 | $3,360 |
| 3 ton | 1601 – 1900 sf | $1,440 | $3,680 |
| 3.5 ton | 1901 – 2200 sf | $1,570 | $3,960 |
| 4 ton | 2201 – 2600 sf | $1,830 | $4,320 |
| 5 ton | 2601 – 3200 sf | $2,290 | $4,850 |
You can use our Central AC Btu Calculator to get an estimated size you need. It takes more factors like insulation and climate into consideration.
Submitted Prices and Reviews by Readers
We will not edit any words from submitted feedback information. We will update this table every 3-6 months and you may not see your submitted review immediately.
| Brand & Model & SizePriceHome LocationHome Size |
|---|
| Armstrong 4SCU14$5150 installed with separate gas heat unitGardendale, AL1700 sq ft two story (850 sq ft per floor) |
| Replaced a 30y/o Rudd unit on 6/1/19 with this Armstrong unit based on Consumer Reports reliability ratings and local HVAC guys recommendation. Already have had to replace the inside coil due to Dirty Sock syndrome (caused by using recycled aluminum to build the coil cheaper-bacteria builds up on the coil easier due to the porous nature of it) and then the compressor fan failed about a month ago. So two warranty issues in less than a year. It does cool well but is somewhat noisy compared to my Rheem unit that I still have for 2nd floor. Now looking to replace my Rheem unit due to age but probably going to spend the extra and go Trane… |
| 4SCU16LT 16 SEER$3,850Los Angeles, CA2100 sqft |
| I bought this new unit to replace one I had for 20 years. The main reason I replaced it was because of efficiency issues plus difficulty in finding parts. This Armstrong I bought works well though. I haven’t had any trouble with it for the ten months I’ve had it. Good ac with great functionality. |
| Armstrong 4SCU13LE$1,109 unit onlySanta Rosa, CA2670 sqft |
| Before I posted this I looked through the reviews and found that there are plenty of people who have had a bad experience with Armstrong. I’m glad I haven’t had to deal with any malfunctions. It’s been a year and a half now and so far the AC keeps the house cool and has great energy efficiency. |
| Armstrong 4SCU18LT 18 SEER$3,500 installedSpringfield, IL2800 sqft |
| 2 years and nothing is the problem. If only every other manufacturer made such reliable equipment. The Armstrong AC I bought 2 years ago hasn’t had any problems apart from a Freon leak that was fixed under the warranty. I’m looking forward to many more years with this unit. |
| 15 SEER$3,020 installedWestville, IN2450 sqft |
| Moving to a new place is expensive, especially if you have lots of repairs to take care of. For me, the worst thing is moving in and having to bear with the scorching heat just because the ac doesn’t work. When we moved in here the ac was one of the first things I made sure were functioning. I replaced the old Carrier I found with an Armstrong unit. So far I can’t complain about its functionality. The unit cools the house so well and isn’t one bit noisy. |
| 4AC13L 3 ton$3,990Alamo, TN2380 sqft |
| Armstrong is a quality brand. I say this because my neighbor has had a Trane and a Rheem in a span of 6 years. I think he got ripped off twice by two companies. My ac has been in service for the last two years and I haven’t spent a dime to fix it. It’s a good deal but you appreciate it more when all you read online is about bad experiences and disgruntled customers. Hurray for Armstrong, I strongly suggest you check them out before your AC or replace an old one. |
| Armstrong 4AC13L 5 ton$5,690Aiken, SC2900 sqft |
| Everything works fine but the system is too noisy. It makes this loud bang when it starts that you would think something exploded in the backyard. I’ve had the problem looked at a few times but no one seems to know what to do. If I could have this fixed then everything would be okay. |
| 4SCU13LE$4749St. Louise, MO2300 sqft |
| I am almost at the end of my tether with this system. If it breaks down again and I have to spend money fixing it I will dump it into the bottom of the river. Why is it that the filters keep getting blocked? It couldn’t be anything but poor design because this just doesn’t add up. Don’t be fooled by flashy advertising, Armstrong is not what it used to be anymore. |
How to Get the Best Armstrong Air Conditioner Prices?
Firstly, When you looking for the best deals for Armstrong AC, keep in mind that installation quality is always the most important thing for residential HVAC project.
- So never sacrifice contractor quality for lower price.
- Secondly, remember to look up the latest tax credit and rebates as we talked above.
- Thirdly, ask for at least 3 bids before you make the decision. You can click here to get 3 free estimates from your local contractors, and this estimate already takes rebates and tax credit into consideration and filter unqualified contractors automatically.
At last, once you chose the right contractor, remember to use the tactics from this guide: Homeowners Tactics When Negotiating with HVAC Dealer to get the final best price.
How Armstrong AC Compares with Other Brands
When comparing Armstrong air conditioners with other major HVAC brands in the market, several key factors come into consideration:
Price Point and Value
Armstrong positions itself in the low-range price category, typically much more affordable than premium brands like Carrier and Lennox, and slightly lower priced than budget options such as Goodman.
Energy Efficiency
Armstrong’s top models achieve SEER ratings up to 20, which is competitive with other mid-tier brands. While this falls slightly short of the highest ratings offered by Trane or Carrier (which can reach up to 26 SEER), it still provides excellent energy efficiency for most households. The brand’s mid-range units typically offer SEER ratings between 14-16, comparable to similar models from Rheem and York.
Warranty Coverage
Armstrong offers a 10-year limited warranty on parts for registered products, which matches the industry standard set by most major manufacturers. However, some premium brands like Goodman and Daikin offer lifetime compressor warranties on select models, giving them an edge in this aspect.
Product Range and Features
Compared to larger manufacturers like Carrier and Lennox, Armstrong offers a more streamlined product lineup. While this means fewer options to choose from, it simplifies the decision-making process for many homeowners. Their units include standard features like scroll compressors and sound-dampening technology, though they may lack some of the advanced smart features found in premium brands.
Reliability and Build Quality
Armstrong air conditioners are manufactured by Lennox, ensuring reliable build quality. Customer feedback and reliability ratings typically place Armstrong in the middle tier, with fewer reported issues than budget brands but not quite matching the long-term durability reputation of premium manufacturers like Trane and Carrier.
Availability and Service Network
One potential drawback is that Armstrong has a smaller dealer network compared to major brands like Carrier, Trane, or Lennox. This may affect both installation options and future service availability in some regions, though the company continues to expand its presence across the United States.




I had my Armstrong A/C and furnace installed 21 years ago and have not needed to have the system repaired ever.
like to have a reviews on this model# 4shp14lb136p-7
I am satisfied with the cooling and mechanical workings of my new Model #4SCU13LB124P, but the one thing I required was that it not be loud at the site of the unit. I am really disappointed in how loud it is. It is on the patio and makes it unpleasant to be outside while it is running. I am sure my neighbors are aware of it.