What is the SEER2 rating of the Concord 4DHP2S24S-1P?

The Concord 4DHP2S24S-1P is rated at up to 22.0 SEER2 and 14.0 EER2 for cooling and up to 11.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 38 certified matchups SEER2 ranges from 19.0-22.0.

Is the Concord 4DHP2S24S-1P good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 20,000 BTU/h at 5°F with a COP of 2.30, so it is still 2.3 times as efficient as electric resistance heat at that temperature.

How much does the Concord 4DHP2S24S-1P cost to run per year?

At its rated efficiency it costs about $505-$1,419 a year in electricity in large U.S. cities, depending on climate and local rates - for example $632 in Phoenix and $1,193 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Which indoor units work with the Concord 4DHP2S24S-1P?

ENERGY STAR lists 38 certified combinations for this outdoor unit. The highest-rated ones use Armstrong Air DWM224S4-*P, Allied DWM224S4-*P, AirEase DWM224S4-*P.

What refrigerant does the Concord 4DHP2S24S-1P use?

It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

24,000 BTU mini-split heat pump · 4DH SERIES

Concord 4DHP2S24S-1P

Average cooling efficiency and very good heating efficiency for a 24,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #184 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $587 a year to run in a mixed climate like Atlanta.

SEER2: 22.0 Cooling efficiency over a season
Average · beats 48%
HSPF2: 11.0 Heating efficiency over a season
Very good · beats 75%
EER2: 14.0 Cooling efficiency on a 95°F day
Very good · beats 82%
Heat at 5°F: 20,000 BTU/h62% of its 47°F output
Very good · beats 86%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 20,000 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 75% of mini-splits.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 38 certified pairings.

Think twice if…

You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications24,000 BTU, R-410A

General
Brand	Concord
Also sold as	Armstrong Air, ALLIED, AIREASE, Ducane
Outdoor unit model	4DHP2S24S-1P
Series	4DH SERIES
Type	Mini-split heat pump
Nominal size	24,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	January 1, 2022
Last certified	May 5, 2026
Cooling
SEER2Seasonal efficiency, higher is better	22.0 (range 19.0-22.0)
EER2Efficiency at 95°F outdoors	12.3-14.0
Cooling capacity	23,000-24,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	9.6-11.0
Capacity at 47°F	25,000-26,000 BTU/h
Capacity at 17°F	16,200-20,000 BTU/h
Capacity at 5°F	15,500-20,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.80-2.30
ENERGY STAR cold climate	Yes

Heating output as it gets colder62% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with DWM224S4-*P at the standard test temperatures, in BTU/h:

Certified matchups38 indoor units

The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
DWM224S4-*P Armstrong Air	22.0	14.0	9.9	15,500	211034523
DWM224S4-*P Allied	22.0	14.0	9.9	15,500	211034497
DWM224S4-*P AirEase	22.0	14.0	9.9	15,500	211034471
DWM224S4-1P CONCORD	22.0	14.0	9.9	15,500	208106692
DWM224S4-1P CONCORD	22.0	14.0	9.9	15,500	208106692
DWM224S4-1P AirEase	22.0	14.0	9.9	15,500	208106683
DWM224S4-1P Armstrong Air	22.0	14.0	9.9	15,500	208106674
DWM224S4-1P DUCANE	22.0	14.0	9.9	15,500	208106665
DWM224S4-1P AirEase	22.0	14.0	9.9	15,500	208106683
DWM224S4-1P Allied	22.0	14.0	9.9	15,500	208106655
DWM224S4-*P DUCANE	22.0	14.0	9.9	15,500	211034575
DWM224S4-*P CONCORD	22.0	14.0	9.9	15,500	211034549
D33C224S4-*P CONCORD · cold climate	21.5	12.3	9.6	18,500	211034562
D33C224S4-*P Armstrong Air · cold climate	21.5	12.3	9.6	18,500	211034536
D33C224S4-*P AirEase · cold climate	21.5	12.3	9.6	18,500	211034484
D33C224S4-1P CONCORD · cold climate	21.5	12.3	9.6	18,500	208106695
D33C224S4-1P AirEase · cold climate	21.5	12.3	9.6	18,500	208106686
D33C224S4-1P Armstrong Air · cold climate	21.5	12.3	9.6	18,500	208106677
D33C224S4-1P Armstrong Air · cold climate	21.5	12.3	9.6	18,500	208106677
D33C224S4-1P DUCANE · cold climate	21.5	12.3	9.6	18,500	208106668
D33C224S4-1P Allied · cold climate	21.5	12.3	9.6	18,500	208106659
D33C224S4-*P Allied · cold climate	21.5	12.3	9.6	18,500	211034510
D33C224S4-*P DUCANE · cold climate	21.5	12.3	9.6	18,500	211034588
D33C224S4-1P CONCORD · cold climate	21.5	12.3	9.6	18,500	208106695
D33C224S4-1P Allied · cold climate	21.5	12.3	9.6	18,500	208106659
DMD224S4-*P Armstrong Air · cold climate	19.0	12.3	11.0	20,000	211034530
DMD224S4-*P CONCORD · cold climate	19.0	12.3	11.0	20,000	211034556
DMD224S4-*P Allied · cold climate	19.0	12.3	11.0	20,000	211034504
DMD224S4-*P AirEase · cold climate	19.0	12.3	11.0	20,000	211034478
DMD224S4-1P CONCORD · cold climate	19.0	12.3	11.0	20,000	208106698
DMD224S4-1P AirEase · cold climate	19.0	12.3	11.0	20,000	208106689
DMD224S4-1P DUCANE · cold climate	19.0	12.3	11.0	20,000	208106671
DMD224S4-1P Allied · cold climate	19.0	12.3	11.0	20,000	208106662
DMD224S4-1P CONCORD · cold climate	19.0	12.3	11.0	20,000	208106698
DMD224S4-1P Allied · cold climate	19.0	12.3	11.0	20,000	208106662
DMD224S4-1P Armstrong Air · cold climate	19.0	12.3	11.0	20,000	208106680
DMD224S4-*P DUCANE · cold climate	19.0	12.3	11.0	20,000	211034582
DMD224S4-1P Armstrong Air · cold climate	19.0	12.3	11.0	20,000	208106680

Yearly running cost in 10 large cities$505-$1,419

Phoenix, AZ$632/yr
Miami, FL$505/yr
Houston, TX$567/yr
Atlanta, GA$587/yr
Los Angeles, CA$574/yr
New York, NY$1,419/yr
Chicago, IL$1,155/yr
Denver, CO$963/yr
Seattle, WA$594/yr
Minneapolis, MN$1,193/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions5

What is the SEER2 rating of the Concord 4DHP2S24S-1P?: The Concord 4DHP2S24S-1P is rated at up to 22.0 SEER2 and 14.0 EER2 for cooling and up to 11.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 38 certified matchups SEER2 ranges from 19.0-22.0.
Is the Concord 4DHP2S24S-1P good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 20,000 BTU/h at 5°F with a COP of 2.30, so it is still 2.3 times as efficient as electric resistance heat at that temperature.
How much does the Concord 4DHP2S24S-1P cost to run per year?: At its rated efficiency it costs about $505-$1,419 a year in electricity in large U.S. cities, depending on climate and local rates - for example $632 in Phoenix and $1,193 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Which indoor units work with the Concord 4DHP2S24S-1P?: ENERGY STAR lists 38 certified combinations for this outdoor unit. The highest-rated ones use Armstrong Air DWM224S4-*P, Allied DWM224S4-*P, AirEase DWM224S4-*P.
What refrigerant does the Concord 4DHP2S24S-1P use?: It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $632/yrYou save $608/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump Concord 4DHP2S24S-1P

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $632
Current system, per year: $1,240
You save per year: $608
Payback: 14.8 years
Net after 10 years: -$2,924

Cooling $378Heating $255Electricity used: 3,951 kWhSaved vs. a minimum-efficiency heat pump: $322

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

Similar 24,000 BTU models

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TGM MRS5VHT24AS · cold climate22.0 SEER2 · 11.1 HSPF2
Lennox MPC024S4S-1P · cold climate22.0 SEER2 · 11.0 HSPF2
TRUST AIR CONDITIONERS OUS24H/O4S4P · cold climate22.0 SEER2 · 11.2 HSPF2
MDV MOD33-24HFN1-MT0W-L · cold climate22.0 SEER2 · 11.0 HSPF2
MOOVAIR DMA24HOS25230E8 · cold climate22.0 SEER2 · 11.2 HSPF2
Sharp AE-X24CU · cold climate22.0 SEER2 · 11.0 HSPF2

See all 430 24,000 BTU mini-splits, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 5, 2026. How we use the data.