What is the SEER2 rating of the Arcoaire D5CLHAH36AAK?

The Arcoaire D5CLHAH36AAK is rated at up to 21.3 SEER2 and 12.0 EER2 for cooling and up to 11.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 49 certified matchups SEER2 ranges from 17.3-21.3.

Is the Arcoaire D5CLHAH36AAK good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 39,500 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the Arcoaire D5CLHAH36AAK cost to run per year?

At its rated efficiency it costs about $795-$2,155 a year in electricity in large U.S. cities, depending on climate and local rates - for example $984 in Phoenix and $1,804 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 D5CLHAH36AAK?

ENERGY STAR lists 49 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FLCAH36XAK, COMFORTMAKER D5FLCAH36XAK, DAY & NIGHT D5FLCAH36XAK.

36,000 BTU mini-split heat pump · D5F Series

Arcoaire D5CLHAH36AAK

Below average cooling efficiency and very good heating efficiency for a 36,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #97 of 205 36,000 BTU mini-splits for cooling efficiency, and costs about $899 a year to run in a mixed climate like Atlanta.

SEER2: 21.3 Cooling efficiency over a season
Below average · beats 35%
HSPF2: 11.1 Heating efficiency over a season
Very good · beats 78%
EER2: 12.0 Cooling efficiency on a 95°F day
Below average · beats 25%
Heat at 5°F: 39,500 BTU/h100% of its 47°F output
Average · beats 67%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 39,500 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 78% of mini-splits.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 49 certified pairings.

Think twice if…

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

Calculate my running cost

Details

Specifications36,000 BTU, R-454B

General
Brand	Arcoaire
Also sold as	Comfortmaker, Day & Night, Heil, Keeprite, Kenmore, Midea, Tempstar, Smart Comfort, Airquest, LPS Legacy, Viessmann, Grandaire
Outdoor unit model	D5CLHAH36AAK
Series	D5F Series
Type	Mini-split heat pump
Nominal size	36,000 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	March 31, 2025
Cooling
SEER2Seasonal efficiency, higher is better	21.3 (range 17.3-21.3)
EER2Efficiency at 95°F outdoors	11.7-12.0
Cooling capacity	36,000-36,600 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	9.5-11.1
Capacity at 47°F	37,000-42,000 BTU/h
Capacity at 17°F	28,000-31,600 BTU/h
Capacity at 5°F	37,000-39,500 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.95-2.10
ENERGY STAR cold climate	Yes

Heating output as it gets colder100% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with D5FLCAH36XAK at the standard test temperatures, in BTU/h:

Certified matchups49 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.
D5FLCAH36XAK ARCOAIRE · cold climate	21.3	12.0	10.6	37,000	215324159
D5FLCAH36XAK COMFORTMAKER · cold climate	21.3	12.0	10.6	37,000	215324232
D5FLCAH36XAK DAY & NIGHT · cold climate	21.3	12.0	10.6	37,000	215324305
D5FLCAH36XAK HEIL · cold climate	21.3	12.0	10.6	37,000	215324378
D5FLCAH36XAK KEEPRITE · cold climate	21.3	12.0	10.6	37,000	215324451
D5FLCAH36XAK KENMORE · cold climate	21.3	12.0	10.6	37,000	215324524
D5FLCAH36XAK MIDEA · cold climate	21.3	12.0	10.6	37,000	215324597
D5FLCAH36XAK TEMPSTAR · cold climate	21.3	12.0	10.6	37,000	215324670
D5FLCAH36XAK SMART COMFORT · cold climate	21.3	12.0	10.6	37,000	215324743
D5FLCAH36XAK AIRQUEST · cold climate	21.3	12.0	10.6	37,000	215324816
D5FLCAH36XAK LPS Legacy · cold climate	21.3	12.0	10.6	37,000	215324889
D5FLCAH36XAK Viessmann · cold climate	21.3	12.0	10.6	37,000	217178809
D5FCFAH36XAK ARCOAIRE · cold climate	20.2	12.0	10.8	39,500	215324160
D5FCFAH36XAK COMFORTMAKER · cold climate	20.2	12.0	10.8	39,500	215324233
D5FCFAH36XAK DAY & NIGHT · cold climate	20.2	12.0	10.8	39,500	215324306
D5FCFAH36XAK HEIL · cold climate	20.2	12.0	10.8	39,500	215324379
D5FCFAH36XAK KEEPRITE · cold climate	20.2	12.0	10.8	39,500	215324452
D5FCFAH36XAK KENMORE · cold climate	20.2	12.0	10.8	39,500	215324525
D5FCFAH36XAK MIDEA · cold climate	20.2	12.0	10.8	39,500	215324598
D5FCFAH36XAK TEMPSTAR · cold climate	20.2	12.0	10.8	39,500	215324671
D5FCFAH36XAK AIRQUEST · cold climate	20.2	12.0	10.8	39,500	215324817
D5FCFAH36XAK LPS Legacy · cold climate	20.2	12.0	10.8	39,500	215324890
D5FCFAH36XAK SMART COMFORT · cold climate	20.2	12.0	10.8	39,500	215324744
D5FCFAH36XAK Viessmann · cold climate	20.2	12.0	10.8	39,500	217178810
D5FLDAH36XHK ARCOAIRE · cold climate	17.8	12.0	11.1	37,600	215324161
D5FLDAH36XHK COMFORTMAKER · cold climate	17.8	12.0	11.1	37,600	215324234
D5FLDAH36XHK DAY & NIGHT · cold climate	17.8	12.0	11.1	37,600	215324307
D5FLDAH36XHK HEIL · cold climate	17.8	12.0	11.1	37,600	215324380
D5FLDAH36XHK KEEPRITE · cold climate	17.8	12.0	11.1	37,600	215324453
D5FLDAH36XHK KENMORE · cold climate	17.8	12.0	11.1	37,600	215324526
D5FLDAH36XHK MIDEA · cold climate	17.8	12.0	11.1	37,600	215324599
D5FLDAH36XHK TEMPSTAR · cold climate	17.8	12.0	11.1	37,600	215324672
D5FLDAH36XHK SMART COMFORT · cold climate	17.8	12.0	11.1	37,600	215324745
D5FLDAH36XHK AIRQUEST · cold climate	17.8	12.0	11.1	37,600	215324818
D5FLDAH36XHK LPS Legacy · cold climate	17.8	12.0	11.1	37,600	215324891
D5FLDAH36XHK Viessmann · cold climate	17.8	12.0	11.1	37,600	217178811
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215318965
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319077
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215318909
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215318993
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215318937
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319021
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319049
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319161
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319133
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319189
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319217
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	215319105
D5FLAAH36XAK · cold climate	17.3	11.7	9.5	38,000	217178760

Yearly running cost in 10 large cities$795-$2,155

Phoenix, AZ$984/yr
Miami, FL$795/yr
Houston, TX$882/yr
Atlanta, GA$899/yr
Los Angeles, CA$876/yr
New York, NY$2,155/yr
Chicago, IL$1,751/yr
Denver, CO$1,457/yr
Seattle, WA$896/yr
Minneapolis, MN$1,804/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 D5CLHAH36AAK?: The Arcoaire D5CLHAH36AAK is rated at up to 21.3 SEER2 and 12.0 EER2 for cooling and up to 11.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 49 certified matchups SEER2 ranges from 17.3-21.3.
Is the Arcoaire D5CLHAH36AAK good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 39,500 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the Arcoaire D5CLHAH36AAK cost to run per year?: At its rated efficiency it costs about $795-$2,155 a year in electricity in large U.S. cities, depending on climate and local rates - for example $984 in Phoenix and $1,804 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 D5CLHAH36AAK?: ENERGY STAR lists 49 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FLCAH36XAK, COMFORTMAKER D5FLCAH36XAK, DAY & NIGHT D5FLCAH36XAK.
What refrigerant does the Arcoaire D5CLHAH36AAK 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 $978/yrYou save $911/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 D5CLHAH36AAK

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: $978
Current system, per year: $1,889
You save per year: $911
Payback: 14.8 years
Net after 10 years: -$4,394

Cooling $595Heating $383Electricity used: 6,115 kWhSaved vs. a minimum-efficiency heat pump: $475

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 36,000 BTU models

Lennox MMLD036S6M-1P · cold climate21.5 SEER2 · 9.5 HSPF2
Carrier 37MBHAQ36AA3 · cold climate21.3 SEER2 · 11.1 HSPF2
ZERO Z4SOV-36HDMB-USHH · cold climate21.5 SEER2 · 11.3 HSPF2
MDV MOX630-36HFN10-M2X · cold climate21.3 SEER2 · 11.1 HSPF2
Fujitsu AOUK036SSAN7 · cold climate21.7 SEER2 · 10.8 HSPF2
Fujitsu AOUH36KUAS1 · cold climate21.3 SEER2 · 10.5 HSPF2
Mitsubishi Electric PUZ-A36NKA822.0 SEER2 · 9.3 HSPF2
1HVAC ACIQ-36ZPL-HP230C · cold climate21.2 SEER2 · 11.1 HSPF2

See all 205 36,000 BTU mini-splits, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 31, 2025. How we use the data.