Armstrong/Ducane Heat Pump Prices and Reviews 2023


Armstrong Air, commonly referred to as just Armstrong, has scaled back its lineup to just 5 models, a practice seen across the HVAC industry. Its sister brand, Ducane, now makes just 3. Two of the Ducane models are identical to an Armstrong Air heat pump model. 

Both brands, owned by Allied Air and its parent company Lennox, are considered among the top handful of brands in quality, reliability and consumer satisfaction. They are rated among the best in quality in recent national surveys. 

Armstrong Heat Pump Cost

Armstrong heat pump price is around $4,300 to $12,400 for the outdoor unit, coil and installation supplies depending on the model and size you choose.

A complete cost table is found below.

About Armstrong

The Armstrong company was founded by the Lennox Furnace Company in Columbus, Ohio in 1928. Now under the name Allied Air, which makes the identical AirEase heat pumps, they are assembled in a state-of-the-art facility in Orangeburg, South Carolina.

As noted above, Armstrong and Ducane are 5 out of 5 rated brands on the Consumer Reports’ 2018/2020 surveys, which speaks of their high satisfaction among customers and reliability ratings among technicians who work on all brands. 

Armstrong produces a wide variety of HVAC equipment including furnaces, heat pumps, and air handlers. This review will focus on the 5 heat pumps that Armstrong currently offers along with the 3 from Ducane. You’ll find performance features, and efficiency ratings of each model. Charts will help you narrow your choice by showing features and installed prices. 

Note – Instead of always referencing Ducane too, you can consider that when this page discusses Armstrong models, the information applies to the identical or similar Ducane heat pump. 

Armstrong’s Features

Energy Efficiency up to SEER 20

The SEER rating of an AC indicates the energy efficiency of the cooling unit. The more efficient the system, the higher the SEER rating. It will result in lower utility bills.

While Armstrong’s heat pump  lineup doesn’t boast the highest SEER ratings available in the industry, their variable speed 4SHP20LX with a SEER rating of 20 puts it well into Energy Star-certified territory. 

Integrated Compressor Protection

Armstrong ACs are built with high and low-pressure switches in all its models. The high-pressure switch will protect the compressor if the refrigerant ever exceeds safe levels. The low-pressure switch will prevent moisture from being drawn into the system in a low-pressure situation. 

MHT Technology

This is Armstrong Air’s proprietary heat transfer system. A specially designed fan will pull air for cooling through all the coils of the heat pump evenly. The rifled tubing of the coil enhances refrigerant flow, while the design of the coil fins increase surface contact between metal and air. Together, they provide maximum heat transfer and efficiency. 

Comfort Sync A3 Thermostat

Exclusively available with Armstrong’s Pro Series heat pumps, the Comfort Sync A3 Thermostat will continuously monitor the system components to optimize climate control and efficiency. It’s WiFi connected for control from anywhere with a smart device. 

Armstrong AC Pros

  • Proven track record with a solid parent company.
  • 10-year warranties for all units, plus Lifetime compressor warranty on the top model.
  • Compressor protection with built-in high and low-pressure switches.
  • 4 of the 6 models are Energy Star certified. 

Armstrong AC Cons

  • Limited selection of models.
  • Only average SEER ratings. 

Armstrong Heat Pump Model Analysis

Here is an overview of the model options. Each model is available in many sizes from 18,000 to 60,000 BTU.

4SHP20LX20/10Variable Speed65-69 decibels
4SHP16LS16/8.5Two Stage74-76
4SHP16LE16/9.5Single Stage70-78
4SHP15LE15/8.5Single Stage72-78
4SHP14LB15/8.5Single Stage72-78

Model Comparison

  • Ducane 4HP16L = Armstrong 4SHP16LE
  • Duane 4HP15L = Armstrong 4SHP15LE
  • The Ducane 4HP18V is unique – It is most like the 4SHP20LX in that it is variable capacity. But the SEER rating is 18 instead of 20. All other specs are the same. 

Armstrong Heat Pump Cost by Model

The Installed Cost includes outdoor unit, indoor coil, refrigerant lines, refrigerant charge and all installation supplies. It does not include a furnace or air handler. 

ModelInstalled Cost
4SHP20LX$9,450 – $12,400
4SHP16LS$7,400 – $9,750
4SHP16LE$6,200 – $8,050
4SHP14LB$5,500 – $7,350
4SHP15LE$4,650 – $6,700

Armstrong Heat Pump Cost by Size

Heat Pump SizeHome SizeSystem OnlySystem Installed
1.5 ton600 – 1000 sf$1,255 – $2,445$4,650 – $$7.400
2 ton1001 – 1300 sf$1,485 – $3,715$5,100 – $9,450
2.5 ton1301 – 1600 sf$1,595 – $3,135$5,650 – $10,000
3 ton1601 – 1900 sf$1,755 – $3,995$6,000 – $10,450
3.5 ton1901 – 2200 sf$1,945 – $3,665$6,350 – $11,100
4 ton2201 – 2600 sf$2,150 – $4,335$6,500 – $11,750
5 ton2601 – 3200 sf$2,295 – $4,685$6,700 – $12,400

Product Lineup and Features 

Armstrong’s 5 heat pumps are divided into two groups: 2 Pro Series models, and 3 Single-Stage models. 

Armstrong’s Pro Series 

Both the 20 SEER 4SHP20LX and the 16 SEER 4SHP16LS include such features as:

Cooling Capacities: 2 to 5 Ton (24-60,000 BTU)

Self-Diagnosing Control Board.

Comfort Sync Thermostat Enabled for Wireless and/or Voice Control.

Comfort Sync Zoning for up to 4 Zones. 

Armstrong’s Single Stage Series 

The 16 SEER 4SHP16LE and the 15 SEER models features include:

Cooling Capacities: 1.5 to 5 Ton (18-60,000 BTU).

Omniguard Total Corrosion Protection Technology.

Integrated Compressor Protection. Important Note: As with many other AC brands, for the full warranty periods to be valid, the product must be registered within 60 days or warranties will default to 10 years on Lifetime compressors and 5 years on other parts. Warranties apply to residential applications only.

Armstrong Heat Pump Submitted Prices and Details

How to Get the Best Armstrong/Ducane Heat Pump Prices?

  • Firstly, keep in mind that installation quality is always the most important thing for heat pump project. So never sacrifice contractor quality for lower price.
  • Secondly, remember to look up the latest tax credit and rebates.
  • Thirdly, ask for at least 3 bids before you make the decision. You can click here to get 3 free estimates for you local contractor, and this estimate already take 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.

Feel free to ask any question by leaving a comment, we will answer any question with actionable tips.

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 from Lone Star College and EPA & R-410A Certifications.

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