Armstrong Air Conditioner Reviews and Prices (Updated in 2024)


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 makes Armstrong Air Conditioner

Armstrong Air Conditioning Inc. is a brand under the umbrella of Lennox International Inc., a leading global name in home comfort. Lennox acquired Armstrong in 1957, expanding its product line and leveraging Armstrong’s established reputation for quality. Since then, Armstrong has been producing a range of air conditioning units known for their durability and efficiency.

Your Armstrong Air Conditioner is crafted with precision, adhering to strict quality standards at the Lennox manufacturing facility. Lennox’s commitment to sustainability and innovation means that your Armstrong AC is not only reliable but also incorporates the latest advancements in cooling technology.

Armstrong Air Conditioner Features

Armstrong offers a range of air conditioners with varying features designed to meet different needs. Below are some of the key attributes you will find in Armstrong’s air conditioning units.

Efficiency Ratings:

  • Most Armstrong air conditioners have good SEER ratings ranging from 13 to 20, which can help you save on energy costs.
  • Models with a SEER rating of 16 or higher are ENERGY STAR® certified.

Technology and Control:

  • Some units are equipped with Comfort Sync™ technology, allowing you to control your air conditioner remotely via a smartphone app.
  • Pro Series™ systems offer advanced diagnostics and performance monitoring.


  • Armstrong provides warranties that cover various components, most notably the compressor, which is essential for the air conditioner’s functionality.
  • Warranty terms vary, with some models offering a 10-year limited warranty on parts.

Armstrong Air Conditioner Cons

Here are 4 typical cons for Armstrong central ac units:

  • Limited Options: Your selection may feel constrained as Armstrong offers fewer models compared to other top brands in the industry. This limitation could affect finding the perfect fit for your specific needs.
  • Costs: While initially more cost-effective, the long-term reliability of some units could lead to increased maintenance costs. Be mindful that a lower upfront price might not always equate to long-term savings.
  • Availability: In certain regions, you may find limited availability of certified Armstrong technicians. This might lead to longer wait times for service and repairs, impacting your overall experience with the product.
  • Warranty Terms: The company’s warranty offerings are not as competitive when compared to industry leaders. It is crucial to read the fine print to understand what is covered and what is not.

Armstrong AC Model Analysis

ModelSEERSound LevelCompressorCommunicating
4SCU20LX 2072VariableYes

Variable-Capacity Models

  1. 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.
  2. 4SCU20LX: Also offers up to 20 SEER efficiency. Compatible with Comfort Sync® A3, this model ensures optimal cooling and energy-saving benefits.
  3. 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.

ModelsSystem OnlySystem 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.

Each Unit includes: Armstrong 2.5-ton 16 SEER outdoor condenser, 1300-1400 CFM air handler, programmable thermostat.

AC Unit SizeHome SizeSystem OnlySystem Installed
1.5 ton600 - 1000 sf$990$3,130
2 ton1001 - 1300 sf$1,110$3,300
2.5 ton1301 - 1600 sf$1,220$3,360
3 ton1601 - 1900 sf$1,440$3,680
3.5 ton1901 - 2200 sf$1,570$3,960
4 ton2201 - 2600 sf$1,830$4,320
5 ton2601 - 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.

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.

Written by

Rene has worked 10 years in the HVAC field and now is the Senior Comfort Specialist for PICKHVAC. He holds an HVAC associate degree and EPA & R-410A Certifications.

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3 thoughts on “Armstrong Air Conditioner Reviews and Prices (Updated in 2024)”

  1. I had my Armstrong A/C and furnace installed 21 years ago and have not needed to have the system repaired ever.

  2. 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.


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