What is the SEER2 rating of the Arcoaire D5CLRAH36AAK?

The Arcoaire D5CLRAH36AAK is rated at up to 20.0 SEER2 and 9.7 EER2 for cooling and up to 10.4 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Arcoaire D5CLRAH36AAK good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 26,600 BTU/h at 5°F with a COP of 2.20, so it is still 2.2 times as efficient as electric resistance heat at that temperature.

How much does the Arcoaire D5CLRAH36AAK cost to run per year?

At its rated efficiency it costs about $846-$2,299 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,048 in Phoenix and $1,925 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 D5CLRAH36AAK?

ENERGY STAR lists 11 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 D5CLRAH36AAK

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

Ranks #139 of 205 36,000 BTU mini-splits for cooling efficiency, and costs about $958 a year to run in a mixed climate like Atlanta.

SEER2: 20.0 Cooling efficiency over a season
Below average · beats 18%
HSPF2: 10.4 Heating efficiency over a season
Average · beats 57%
EER2: 9.7 Cooling efficiency on a 95°F day
Below average · beats 4%
Heat at 5°F: 26,600 BTU/h70% of its 47°F output
Very good · beats 78%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 26,600 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 11 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
Outdoor unit model	D5CLRAH36AAK
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 4, 2025
Cooling
SEER2Seasonal efficiency, higher is better	20.0 (range 20.0)
EER2Efficiency at 95°F outdoors	9.7
Cooling capacity	36,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	10.4
Capacity at 47°F	38,000 BTU/h
Capacity at 17°F	26,800 BTU/h
Capacity at 5°F	26,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.20
ENERGY STAR cold climate	Yes

Heating output as it gets colder70% 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 matchups11 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	20.0	9.7	10.4	26,600	215324167
D5FLCAH36XAK COMFORTMAKER · cold climate	20.0	9.7	10.4	26,600	215324240
D5FLCAH36XAK DAY & NIGHT · cold climate	20.0	9.7	10.4	26,600	215324313
D5FLCAH36XAK HEIL · cold climate	20.0	9.7	10.4	26,600	215324386
D5FLCAH36XAK KEEPRITE · cold climate	20.0	9.7	10.4	26,600	215324459
D5FLCAH36XAK KENMORE · cold climate	20.0	9.7	10.4	26,600	215324532
D5FLCAH36XAK MIDEA · cold climate	20.0	9.7	10.4	26,600	215324605
D5FLCAH36XAK TEMPSTAR · cold climate	20.0	9.7	10.4	26,600	215324678
D5FLCAH36XAK SMART COMFORT · cold climate	20.0	9.7	10.4	26,600	215324751
D5FLCAH36XAK AIRQUEST · cold climate	20.0	9.7	10.4	26,600	215324824
D5FLCAH36XAK LPS Legacy · cold climate	20.0	9.7	10.4	26,600	215324897

Yearly running cost in 10 large cities$846-$2,299

Phoenix, AZ$1,048/yr
Miami, FL$846/yr
Houston, TX$940/yr
Atlanta, GA$958/yr
Los Angeles, CA$934/yr
New York, NY$2,299/yr
Chicago, IL$1,868/yr
Denver, CO$1,555/yr
Seattle, WA$956/yr
Minneapolis, MN$1,925/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 D5CLRAH36AAK?: The Arcoaire D5CLRAH36AAK is rated at up to 20.0 SEER2 and 9.7 EER2 for cooling and up to 10.4 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Arcoaire D5CLRAH36AAK good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 26,600 BTU/h at 5°F with a COP of 2.20, so it is still 2.2 times as efficient as electric resistance heat at that temperature.
How much does the Arcoaire D5CLRAH36AAK cost to run per year?: At its rated efficiency it costs about $846-$2,299 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,048 in Phoenix and $1,925 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 D5CLRAH36AAK?: ENERGY STAR lists 11 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FLCAH36XAK, COMFORTMAKER D5FLCAH36XAK, DAY & NIGHT D5FLCAH36XAK.
What refrigerant does the Arcoaire D5CLRAH36AAK 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 $1,043/yrYou save $846/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 D5CLRAH36AAK

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: $1,043
Current system, per year: $1,889
You save per year: $846
Payback: 16.0 years
Net after 10 years: -$5,039

Cooling $634Heating $409Electricity used: 6,518 kWhSaved vs. a minimum-efficiency heat pump: $411

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

KEEN Home KEENUMHP36AA · cold climate20.0 SEER2 · 10.8 HSPF2
Carrier 37MBRAQ36AA3 · cold climate20.0 SEER2 · 10.4 HSPF2
Fujitsu AOU36RLXFZH · cold climate20.5 SEER2 · 9.5 HSPF2
MDV MOD30-36HFN10-M2 · cold climate20.0 SEER2 · 10.4 HSPF2
GE Appliances 4G36ED2BE · cold climate20.5 SEER2 · 10.0 HSPF2
Bosch BMS500-AAS036-1CSXLD · cold climate20.0 SEER2 · 10.3 HSPF2
DELLA 048-TLP-MODU-1D4 · cold climate20.5 SEER2 · 10.5 HSPF2
Mainline ML36HP230LCM-O · cold climate20.0 SEER2 · 10.3 HSPF2

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

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 4, 2025. How we use the data.