What is the SEER2 rating of the Arcoaire Q5H9V24*K*AAA?

The Arcoaire Q5H9V24*K*AAA is rated at up to 19.5 SEER2 and 14.0 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 7651 certified matchups SEER2 ranges from 15.2-19.5.

Is the Arcoaire Q5H9V24*K*AAA good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 22,200 BTU/h at 5°F with a COP of 2.02, so it is still 2.0 times as efficient as electric resistance heat at that temperature.

How much does the Arcoaire Q5H9V24*K*AAA cost to run per year?

At its rated efficiency it costs about $583-$1,565 a year in electricity in large U.S. cities, depending on climate and local rates - for example $720 in Phoenix and $1,308 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 Q5H9V24*K*AAA?

ENERGY STAR lists 7651 certified combinations for this outdoor unit. The highest-rated ones use QFVA5D3617X, EA*5X37M21A, QFVA5D2417X.

2-ton central heat pump · QuietComfort 19 SEER2 VS HP

Arcoaire Q5H9V24KAAA

Excellent cooling efficiency and very good heating efficiency for a 2-ton central heat pump, and certified for cold climates.

Ranks #39 of 331 2 ton central heat pumps for cooling efficiency, and costs about $654 a year to run in a mixed climate like Atlanta.

SEER2: 19.5 Cooling efficiency over a season
Excellent · beats 91%
HSPF2: 10.0 Heating efficiency over a season
Very good · beats 84%
EER2: 14.0 Cooling efficiency on a 95°F day
Excellent · beats 98%
Heat at 5°F: 22,200 BTU/h95% of its 47°F output
Average · beats 47%

A good fit if…

You want low cooling bills - its SEER2 beats 91% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 22,200 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 84% of central heat pumps.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Nothing stands out - its ratings have no weak spot for its class.

Calculate my running cost

Details

Specifications2 ton, R-454B

General
Brand	Arcoaire
Also sold as	Airquest, Day & Night, Comfortmaker, Heil, Keeprite, Tempstar
Outdoor unit model	Q5H9V24KAAA
Series	QuietComfort 19 SEER2 VS HP
Type	Central heat pump
Nominal size	2 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	October 15, 2025
Last certified	September 30, 2026
Cooling
SEER2Seasonal efficiency, higher is better	19.5 (range 15.2-19.5)
EER2Efficiency at 95°F outdoors	11.5-14.0
Cooling capacity	22,200-25,400 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.0-10.0
Capacity at 47°F	22,400-25,800 BTU/h
Capacity at 17°F	19,800-25,200 BTU/h
Capacity at 5°F	20,000-22,200 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.74-2.02
ENERGY STAR cold climate	Yes

Heating output as it gets colder95% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with QFVA5D3617X at the standard test temperatures, in BTU/h:

Certified matchups7,651 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 7,651 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	Furnace	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695504
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695502
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695500
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695498
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695496
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695494
QFVA5D3617X · cold climate	-	19.5	14.0	8.6	21,200	218695492
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949617
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949618
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949619
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949620
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949621
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949622
EA*5X37M21A · cold climate	80MSU0802120A	19.0	14.0	10.0	21,000	217949616
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945517
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945518
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945519
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945520
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945521
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945522
EA*5X37M21A · cold climate	96VTN1002122B	19.0	14.0	10.0	21,000	217945523
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945532
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945533
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945534
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945535
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945536
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945537
EA*5X37M21A · cold climate	97VTN1002122A	19.0	14.0	10.0	21,000	217945538
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944916
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944917
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944918
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944919
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944920
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944921
EA*5X37M21A · cold climate	80VSL1102122B	19.0	14.0	10.0	21,200	217944922
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950984
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950985
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950986
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950988
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950987
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950989
EA*5X37M21A · cold climate	80MSU0601716A	19.0	14.0	10.0	21,000	217950990
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695488
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695486
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695484
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695482
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695480
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695478
QFVA5D2417X · cold climate	-	19.0	13.5	8.6	20,800	218695476
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943074
EVD5X37M21A · cold climate	80CTL0702120B	19.0	14.0	8.5	21,600	217943058
EVD5X37M21A · cold climate	80CTL0702120B	19.0	14.0	8.5	21,600	217943059
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943068
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943069
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943070
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943071
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943072
EVD5X37M21A · cold climate	80CTL0901716B	19.0	14.0	8.5	21,400	217943073
EVD5X37M21A · cold climate	80CTL0902120B	19.0	14.0	8.5	21,400	217943083
EVD5X37M21A · cold climate	80CTL0902120B	19.0	14.0	8.5	21,400	217943084

Yearly running cost in 10 large cities$583-$1,565

Phoenix, AZ$720/yr
Miami, FL$583/yr
Houston, TX$645/yr
Atlanta, GA$654/yr
Los Angeles, CA$637/yr
New York, NY$1,565/yr
Chicago, IL$1,271/yr
Denver, CO$1,057/yr
Seattle, WA$650/yr
Minneapolis, MN$1,308/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 Q5H9V24*K*AAA?: The Arcoaire Q5H9V24*K*AAA is rated at up to 19.5 SEER2 and 14.0 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 7651 certified matchups SEER2 ranges from 15.2-19.5.
Is the Arcoaire Q5H9V24*K*AAA good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 22,200 BTU/h at 5°F with a COP of 2.02, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
How much does the Arcoaire Q5H9V24*K*AAA cost to run per year?: At its rated efficiency it costs about $583-$1,565 a year in electricity in large U.S. cities, depending on climate and local rates - for example $720 in Phoenix and $1,308 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 Q5H9V24*K*AAA?: ENERGY STAR lists 7651 certified combinations for this outdoor unit. The highest-rated ones use QFVA5D3617X, EA*5X37M21A, QFVA5D2417X.
What refrigerant does the Arcoaire Q5H9V24*K*AAA 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 $715/yrYou save $543/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 Q5H9V24*K*AAA

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: $715
Current system, per year: $1,258
You save per year: $543
Payback: 16.6 years
Net after 10 years: -$3,570

Cooling $437Heating $278Electricity used: 4,466 kWhSaved vs. a minimum-efficiency heat pump: $251

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 2 ton models

Trane/American Standard 5HCL9024A1000A · cold climate19.7 SEER2 · 8.8 HSPF2
Bryant 249VAN024**AA · cold climate19.5 SEER2 · 10.0 HSPF2
Sure SP18AZ24AJVC · cold climate20.0 SEER2 · 8.5 HSPF2
Carrier 27VPA924A*030 · cold climate19.5 SEER2 · 10.0 HSPF2
Rheem RP18AZ24AJVC · cold climate20.0 SEER2 · 8.5 HSPF2
Tempstar N5H9V24*K*AAA · cold climate19.5 SEER2 · 10.0 HSPF2
GE NS19H36MA5-**A20.0 SEER2 · 8.5 HSPF2
Trane/American Standard 5HPL6024A1000A19.5 SEER2 · 9.4 HSPF2

See all 331 2 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 30, 2026. How we use the data.