What is the SEER2 rating of the Arcoaire D5CSHAH24AAK?

The Arcoaire D5CSHAH24AAK is rated at up to 21.2 SEER2 and 13.0 EER2 for cooling and up to 13.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 61 certified matchups SEER2 ranges from 18.8-21.2.

Is the Arcoaire D5CSHAH24AAK good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 24,200 BTU/h at 5°F with a COP of 2.34, so it is still 2.3 times as efficient as electric resistance heat at that temperature.

How much does the Arcoaire D5CSHAH24AAK cost to run per year?

At its rated efficiency it costs about $509-$1,249 a year in electricity in large U.S. cities, depending on climate and local rates - for example $619 in Phoenix and $1,030 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 Arcoaire D5CSHAH24AAK?

ENERGY STAR lists 61 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSHAH24XAK, COMFORTMAKER D5FSHAH24XAK, DAY & NIGHT D5FSHAH24XAK.

24,000 BTU mini-split heat pump · D5F Series

Arcoaire D5CSHAH24AAK

Below average cooling efficiency and excellent heating efficiency for a 24,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #253 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $536 a year to run in a mixed climate like Atlanta.

SEER2: 21.2 Cooling efficiency over a season
Below average · beats 35%
HSPF2: 13.5 Heating efficiency over a season
Excellent · beats 96%
EER2: 13.0 Cooling efficiency on a 95°F day
Average · beats 62%
Heat at 5°F: 24,200 BTU/h83% of its 47°F output
Very good · beats 89%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 24,200 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 96% of mini-splits.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 61 certified pairings.

Think twice if…

Cooling cost matters most - its SEER2 is below average for mini-splits.

Calculate my running cost

Details

Specifications24,000 BTU, R-454B

General
Brand	Arcoaire
Also sold as	Comfortmaker, Day & Night, Heil, Keeprite, Kenmore, Midea, Smart Comfort, Tempstar, Airquest, LPS Legacy, Viessmann, Grandaire
Outdoor unit model	D5CSHAH24AAK
Series	D5F Series
Type	Mini-split heat pump
Nominal size	24,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	November 15, 2018
Last certified	May 28, 2026
Cooling
SEER2Seasonal efficiency, higher is better	21.2 (range 18.8-21.2)
EER2Efficiency at 95°F outdoors	12.0-13.0
Cooling capacity	22,000-24,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	10.0-13.5
Capacity at 47°F	25,000-29,000 BTU/h
Capacity at 17°F	16,900-22,200 BTU/h
Capacity at 5°F	23,600-24,200 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.16-2.34
ENERGY STAR cold climate	Yes

Heating output as it gets colder83% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with D5FSHAH24XAK at the standard test temperatures, in BTU/h:

Certified matchups61 indoor units

The same outdoor unit scores differently with each indoor unit. The 60 highest-rated of 61 are shown. 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.
D5FSHAH24XAK ARCOAIRE · cold climate	21.2	13.0	13.5	24,200	215324124
D5FSHAH24XAK COMFORTMAKER · cold climate	21.2	13.0	13.5	24,200	215324197
D5FSHAH24XAK DAY & NIGHT · cold climate	21.2	13.0	13.5	24,200	215324270
D5FSHAH24XAK HEIL · cold climate	21.2	13.0	13.5	24,200	215324343
D5FSHAH24XAK KEEPRITE · cold climate	21.2	13.0	13.5	24,200	215324416
D5FSHAH24XAK KENMORE · cold climate	21.2	13.0	13.5	24,200	215324489
D5FSHAH24XAK MIDEA · cold climate	21.2	13.0	13.5	24,200	215324562
D5FSHAH24XAK SMART COMFORT · cold climate	21.2	13.0	13.5	24,200	215324708
D5FSHAH24XAK TEMPSTAR · cold climate	21.2	13.0	13.5	24,200	215324635
D5FSHAH24XAK AIRQUEST · cold climate	21.2	13.0	13.5	24,200	215324781
D5FSHAH24XAK LPS Legacy · cold climate	21.2	13.0	13.5	24,200	215324854
D5FSHAH24XAK Viessmann · cold climate	21.2	13.0	13.5	24,200	217178802
D5FSCAH24XAK ARCOAIRE · cold climate	20.8	12.0	11.6	23,800	215324125
D5FSCAH24XAK COMFORTMAKER · cold climate	20.8	12.0	11.6	23,800	215324198
D5FSCAH24XAK DAY & NIGHT · cold climate	20.8	12.0	11.6	23,800	215324271
D5FSCAH24XAK HEIL · cold climate	20.8	12.0	11.6	23,800	215324344
D5FSCAH24XAK KEEPRITE · cold climate	20.8	12.0	11.6	23,800	215324417
D5FSCAH24XAK KENMORE · cold climate	20.8	12.0	11.6	23,800	215324490
D5FSCAH24XAK MIDEA · cold climate	20.8	12.0	11.6	23,800	215324563
D5FSCAH24XAK SMART COMFORT · cold climate	20.8	12.0	11.6	23,800	215324709
D5FSCAH24XAK TEMPSTAR · cold climate	20.8	12.0	11.6	23,800	215324636
D5FSCAH24XAK AIRQUEST · cold climate	20.8	12.0	11.6	23,800	215324782
D5FSCAH24XAK LPS Legacy · cold climate	20.8	12.0	11.6	23,800	215324855
D5FSCAH24XAK Viessmann · cold climate	20.8	12.0	11.6	23,800	217178803
D5FCFAH24XAK ARCOAIRE · cold climate	20.5	12.0	12.1	24,200	215324126
D5FCFAH24XAK COMFORTMAKER · cold climate	20.5	12.0	12.1	24,200	215324199
D5FCFAH24XAK DAY & NIGHT · cold climate	20.5	12.0	12.1	24,200	215324272
D5FCFAH24XAK HEIL · cold climate	20.5	12.0	12.1	24,200	215324345
D5FCFAH24XAK KEEPRITE · cold climate	20.5	12.0	12.1	24,200	215324418
D5FCFAH24XAK KENMORE · cold climate	20.5	12.0	12.1	24,200	215324491
D5FCFAH24XAK MIDEA · cold climate	20.5	12.0	12.1	24,200	215324564
D5FCFAH24XAK TEMPSTAR · cold climate	20.5	12.0	12.1	24,200	215324637
D5FCFAH24XAK SMART COMFORT · cold climate	20.5	12.0	12.1	24,200	215324710
D5FCFAH24XAK AIRQUEST · cold climate	20.5	12.0	12.1	24,200	215324783
D5FCFAH24XAK LPS Legacy · cold climate	20.5	12.0	12.1	24,200	215324856
D5FCFAH24XAK Viessmann · cold climate	20.5	12.0	12.1	24,200	217178804
D5FSDAH24XHK ARCOAIRE · cold climate	19.2	12.0	11.7	24,000	215324127
D5FSDAH24XHK COMFORTMAKER · cold climate	19.2	12.0	11.7	24,000	215324200
D5FSDAH24XHK DAY & NIGHT · cold climate	19.2	12.0	11.7	24,000	215324273
D5FSDAH24XHK HEIL · cold climate	19.2	12.0	11.7	24,000	215324346
D5FSDAH24XHK KEEPRITE · cold climate	19.2	12.0	11.7	24,000	215324419
D5FSDAH24XHK KENMORE · cold climate	19.2	12.0	11.7	24,000	215324492
D5FSDAH24XHK MIDEA · cold climate	19.2	12.0	11.7	24,000	215324565
D5FSDAH24XHK TEMPSTAR · cold climate	19.2	12.0	11.7	24,000	215324638
D5FSDAH24XHK SMART COMFORT · cold climate	19.2	12.0	11.7	24,000	215324711
D5FSDAH24XHK AIRQUEST · cold climate	19.2	12.0	11.7	24,000	215324784
D5FSDAH24XHK LPS Legacy · cold climate	19.2	12.0	11.7	24,000	215324857
D5FSDAH24XHK Viessmann · cold climate	19.2	12.0	11.7	24,000	217178805
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319073
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215318905
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215318933
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319017
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319045
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319129
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319185
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215318961
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215318989
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319101
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319157
D5FSAAH24XBK · cold climate	18.8	12.0	10.0	23,600	215319213

Yearly running cost in 10 large cities$509-$1,249

Phoenix, AZ$619/yr
Miami, FL$517/yr
Houston, TX$554/yr
Atlanta, GA$536/yr
Los Angeles, CA$515/yr
New York, NY$1,249/yr
Chicago, IL$1,008/yr
Denver, CO$834/yr
Seattle, WA$509/yr
Minneapolis, MN$1,030/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 Arcoaire D5CSHAH24AAK?: The Arcoaire D5CSHAH24AAK is rated at up to 21.2 SEER2 and 13.0 EER2 for cooling and up to 13.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 61 certified matchups SEER2 ranges from 18.8-21.2.
Is the Arcoaire D5CSHAH24AAK good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 24,200 BTU/h at 5°F with a COP of 2.34, so it is still 2.3 times as efficient as electric resistance heat at that temperature.
How much does the Arcoaire D5CSHAH24AAK cost to run per year?: At its rated efficiency it costs about $509-$1,249 a year in electricity in large U.S. cities, depending on climate and local rates - for example $619 in Phoenix and $1,030 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 Arcoaire D5CSHAH24AAK?: ENERGY STAR lists 61 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSHAH24XAK, COMFORTMAKER D5FSHAH24XAK, DAY & NIGHT D5FSHAH24XAK.
What refrigerant does the Arcoaire D5CSHAH24AAK use?: It uses R-454B.

Running cost and savings

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

Heat pump $604/yrYou save $645/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 Arcoaire D5CSHAH24AAK

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: $604
Current system, per year: $1,249
You save per year: $645
Payback: 14.0 years
Net after 10 years: -$2,551

Cooling $389Heating $216Electricity used: 3,776 kWhSaved vs. a minimum-efficiency heat pump: $360

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

Mitsubishi Electric MUZ-GS24NAHZ · cold climate21.5 SEER2 · 9.0 HSPF2
Carrier 37MAHAQ24AA3 · cold climate21.2 SEER2 · 13.5 HSPF2
Blueridge BMKH2422/O · cold climate21.5 SEER2 · 9.5 HSPF2
ZERO ZSOV-24HDM-US · cold climate21.2 SEER2 · 11.2 HSPF2
ACD UHD24KCH22S-O · cold climate21.5 SEER2 · 9.5 HSPF2
Star Air Kontrol SAK-24CONS/220V · cold climate21.2 SEER2 · 10.3 HSPF2
Star Air Kontrol SAK-24-CC/220V · cold climate21.5 SEER2 · 9.7 HSPF2
Mitsubishi Electric SUZ-AA24NL21.2 SEER2 · 10.0 HSPF2

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

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 28, 2026. How we use the data.