What is the SEER2 rating of the Arcoaire B5H3V24*K*AAA?

The Arcoaire B5H3V24*K*AAA is rated at up to 23.0 SEER2 and 13.5 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3771 certified matchups SEER2 ranges from 18.0-23.0.

Is the Arcoaire B5H3V24*K*AAA good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 23,000 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 B5H3V24*K*AAA cost to run per year?

At its rated efficiency it costs about $475-$1,573 a year in electricity in large U.S. cities, depending on climate and local rates - for example $627 in Phoenix and $1,347 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 B5H3V24*K*AAA?

ENERGY STAR lists 3771 certified combinations for this outdoor unit. The highest-rated ones use EVM5X32M17A*+WALLCON, EVD5X38M17A*+WALLCON, EVM5X44M21A*+WALLCON.

2-ton central heat pump · Deluxe 23 VS Heat Pump

Arcoaire B5H3V24KAAA

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

Ranks #1 of 331 2 ton central heat pumps for cooling efficiency, and costs about $628 a year to run in a mixed climate like Atlanta.

SEER2: 23.0 Cooling efficiency over a season
Excellent · beats 99%
HSPF2: 10.5 Heating efficiency over a season
Excellent · beats 96%
EER2: 13.5 Cooling efficiency on a 95°F day
Excellent · beats 95%
Heat at 5°F: 23,000 BTU/h81% of its 47°F output
Average · beats 58%

A good fit if…

You want low cooling bills - its SEER2 beats 99% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 23,000 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 96% 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, Heil, Tempstar, Kenmore, Keeprite, Day & Night, Comfortmaker, ACIQ
Outdoor unit model	B5H3V24KAAA
Series	Deluxe 23 VS Heat Pump
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	August 8, 2025
Last certified	July 16, 2026
Cooling
SEER2Seasonal efficiency, higher is better	23.0 (range 18.0-23.0)
EER2Efficiency at 95°F outdoors	10.5-14.0
Cooling capacity	21,600-23,800 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.5-10.5
Capacity at 47°F	24,800-28,200 BTU/h
Capacity at 17°F	24,000-26,400 BTU/h
Capacity at 5°F	19,100-23,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.84-2.10
ENERGY STAR cold climate	Yes

Heating output as it gets colder81% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with EVM5X32M17A*+WALLCON at the standard test temperatures, in BTU/h:

Certified matchups3,771 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 3,771 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.
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407647
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407646
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407645
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407644
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407643
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407642
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407641
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218407640
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408935
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408934
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408933
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408932
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408931
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408930
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408929
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218408928
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408071
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408070
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408069
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408068
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408067
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408066
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408065
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218408064
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408039
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408038
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408037
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408036
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408035
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408034
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408033
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218408032
EVD5X38M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218629135
EVM5X44M21A*+WALLCON · cold climate	80CTL0901716B	23.0	13.5	9.5	22,400	218629027
EVM5X44M21A*+WALLCON · cold climate	80CSU0401712B	23.0	14.0	9.5	22,400	218629023
EVM5X32M17A*+WALLCON · cold climate	80CSU0601716B	23.0	13.5	9.5	22,400	218628974
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407727
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407726
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407725
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407724
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407723
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407722
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407721
EVM5X32M17A*+WALLCON · cold climate	96CTN0801714B	22.5	13.5	9.5	22,400	218407720
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407719
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407718
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407717
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407716
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407715
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407714
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407713
EVM5X32M17A*+WALLCON · cold climate	96CTN0601714B	22.5	13.0	9.5	22,600	218407712
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407703
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407702
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407701
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407700
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407699
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407698
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407697
EVM5X32M17A*+WALLCON · cold climate	97CMN0801714B	22.5	13.0	9.5	22,400	218407696

Yearly running cost in 10 large cities$475-$1,573

Phoenix, AZ$627/yr
Miami, FL$475/yr
Houston, TX$564/yr
Atlanta, GA$628/yr
Los Angeles, CA$625/yr
New York, NY$1,573/yr
Chicago, IL$1,291/yr
Denver, CO$1,084/yr
Seattle, WA$675/yr
Minneapolis, MN$1,347/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 B5H3V24*K*AAA?: The Arcoaire B5H3V24*K*AAA is rated at up to 23.0 SEER2 and 13.5 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3771 certified matchups SEER2 ranges from 18.0-23.0.
Is the Arcoaire B5H3V24*K*AAA good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 23,000 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 B5H3V24*K*AAA cost to run per year?: At its rated efficiency it costs about $475-$1,573 a year in electricity in large U.S. cities, depending on climate and local rates - for example $627 in Phoenix and $1,347 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 B5H3V24*K*AAA?: ENERGY STAR lists 3771 certified combinations for this outdoor unit. The highest-rated ones use EVM5X32M17A*+WALLCON, EVD5X38M17A*+WALLCON, EVM5X44M21A*+WALLCON.
What refrigerant does the Arcoaire B5H3V24*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 $644/yrYou save $614/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 B5H3V24*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: $644
Current system, per year: $1,258
You save per year: $614
Payback: 13.9 years
Net after 10 years: -$2,363

Cooling $352Heating $292Electricity used: 4,027 kWhSaved vs. a minimum-efficiency heat pump: $331

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.

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GE NS22H24MA4-**A22.0 SEER2 · 9.5 HSPF2
SAMYOU VUH24-VA6BA(O) · cold climate21.0 SEER2 · 11.0 HSPF2
Armstrong Air A7CP21V24P-**A · cold climate21.0 SEER2 · 10.2 HSPF2
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LG KUSXB241A · cold climate21.0 SEER2 · 10.2 HSPF2

See all 331 2 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of July 16, 2026. How we use the data.