What is the SEER2 rating of the GE Appliances NS18H24HA5?

The GE Appliances NS18H24HA5 is rated at up to 18.5 SEER2 and 12.3 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 206 certified matchups SEER2 ranges from 15.2-18.5.

Is the GE Appliances NS18H24HA5 good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 23,400 BTU/h at 5°F with a COP of 1.85, so it is still 1.9 times as efficient as electric resistance heat at that temperature.

How much does the GE Appliances NS18H24HA5 cost to run per year?

At its rated efficiency it costs about $608-$1,538 a year in electricity in large U.S. cities, depending on climate and local rates - for example $738 in Phoenix and $1,275 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 GE Appliances NS18H24HA5?

ENERGY STAR lists 206 certified combinations for this outdoor unit. The highest-rated ones use NAM30E3TA5, NAM24V1TA5, NAM30V2TA5.

2-ton central heat pump · Connect

GE Appliances NS18H24HA5

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

Ranks #89 of 331 2 ton central heat pumps for cooling efficiency, and costs about $652 a year to run in a mixed climate like Atlanta.

SEER2: 18.5 Cooling efficiency over a season
Very good · beats 77%
HSPF2: 10.0 Heating efficiency over a season
Very good · beats 84%
EER2: 12.3 Cooling efficiency on a 95°F day
Very good · beats 76%
Heat at 5°F: 23,400 BTU/h92% of its 47°F output
Below average · beats 12%

A good fit if…

You want low cooling bills - its SEER2 beats 77% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 23,400 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	GE Appliances
Outdoor unit model	NS18H24HA5
Series	Connect
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 16, 2024
Last certified	July 17, 2026
Cooling
SEER2Seasonal efficiency, higher is better	18.5 (range 15.2-18.5)
EER2Efficiency at 95°F outdoors	11.0-12.3
Cooling capacity	23,200-24,600 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.5-10.0
Capacity at 47°F	23,800-24,800 BTU/h
Capacity at 17°F	18,000-20,200 BTU/h
Capacity at 5°F	20,000-23,400 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.75-1.85
ENERGY STAR cold climate	Yes

Heating output as it gets colder92% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with NAM30E3TA5 at the standard test temperatures, in BTU/h:

Certified matchups206 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 206 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.
NAM30E3TA5 · cold climate	-	18.5	12.3	9.8	22,000	216705362
NAM24V1TA5 · cold climate	-	18.0	11.7	10.0	23,000	215869480
NAM30V2TA5 · cold climate	-	18.0	12.0	9.5	22,600	216604746
NAS30E1TB5 · cold climate	-	17.9	11.8	9.9	22,600	218635938
NAS18E1TB5 · cold climate	-	17.9	11.9	9.9	22,600	218635936
NCHC30AT5****+TDR · cold climate	NF80U045T3A***	17.9	12.0	9.5	20,600	217124026
NAS24E1TB5 · cold climate	-	17.8	11.8	9.9	22,600	218635937
NCUC36AT5****+TDR · cold climate	NF80U045T3A***	17.8	12.0	9.4	20,600	217123982
NCUC36BT5****+TDR · cold climate	NF96U045V3BF***	17.8	12.0	9.4	20,600	217313311
NCUC36BT5****+TDR · cold climate	NF97X040V3B***	17.8	12.0	9.0	20,600	216743560
NCUC36BT5****+TDR · cold climate	NF80U090V3BF***	17.8	12.0	9.0	20,600	217313282
NCHC30AT5****+TDR · cold climate	NF80U030V3AF***	17.7	12.0	9.5	20,600	217313374
NCHC24BT5****+TDR · cold climate	NF96U045V3BF***	17.7	12.0	9.0	20,800	217313364
NCHC30BT5****+TDR · cold climate	NF96U045V3BF***	17.7	12.0	9.0	20,800	217313406
NCHC24BT5****+TDR · cold climate	NF97X040V3B***	17.7	12.0	9.0	20,800	216743564
NCHC30BT5****+TDR · cold climate	NF97X040V3B***	17.7	12.0	9.0	20,800	216743568
NCUC36BT5****+TDR · cold climate	NF96U070V3BF***	17.7	12.0	9.0	20,600	217313313
NCHC24BT5****+TDR · cold climate	NF80U090V3BF***	17.7	12.0	9.0	20,800	217313336
NCHC24BT5****+TDR · cold climate	NF96U070V3BF***	17.7	12.0	9.0	20,800	217313367
NCHC30BT5****+TDR · cold climate	NF80U090V3BF***	17.7	12.0	9.0	20,800	217313379
NCHC30AT5****+TDR · cold climate	NF80X040S3A***	17.6	11.7	9.5	20,800	217124022
NCHC30AT5****+TDR · cold climate	NF80X060S3A***	17.6	11.7	9.5	21,000	217124023
NCUC36AT5****+TDR · cold climate	NF80U030V3AF***	17.6	12.0	9.0	20,600	217313275
NCHC30BT5****+TDR · cold climate	NF96U070V3BF***	17.6	12.0	9.0	20,800	217313408
NCHC30AT5****+TDR · cold climate	NF80U070V3AF***	17.6	12.0	9.5	20,600	217313378
NAM24E1TA5 · cold climate	-	17.5	12.0	9.5	23,000	216604742
NAM18V1TA5 · cold climate	-	17.5	11.7	9.4	23,400	216604740
NAM30V1TA5 · cold climate	-	17.5	12.0	9.4	23,200	216604744
NAM30E1TA5 · cold climate	-	17.5	12.0	9.4	23,200	216604743
NCUC36BT5****+TDR · cold climate	NF98U070M3B***	17.5	12.0	9.0	20,600	217123988
NCUC36BT5****+TDR · cold climate	NF97U070V3B***	17.5	12.0	9.0	20,600	216743563
NCHC24BT5****+TDR · cold climate	NF97U070V3B***	17.5	12.0	9.0	20,800	216743567
NCUC30BT5****+TDR · cold climate	NF97X040V3B***	17.5	11.7	9.0	20,800	216743556
NCUC30AT5****+TDR · cold climate	NF80U045T3A***	17.5	12.0	9.0	20,600	217123965
NCUC36AT5****+TDR · cold climate	NF80X060S3A***	17.5	11.7	9.0	20,800	217123979
NCUC36AT5****+TDR · cold climate	NF80X040S3A***	17.5	11.7	9.0	20,800	217123978
NCHC24BT5****+TDR · cold climate	NF98U070M3B***	17.5	12.0	9.0	20,800	217124015
NCUC36BT5****+TDR · cold climate	NF96U070V3B***	17.5	12.0	9.0	20,600	217177701
NCHC24BT5****+TDR · cold climate	NF96U070V3B***	17.5	12.0	9.0	20,800	217177703
NCHC30AT5****+TDR · cold climate	NF80U045S3A***	17.4	11.7	9.5	20,800	217124028
NCHC30AT5****+TDR · cold climate	NF80L045S3A***	17.4	11.7	9.5	20,800	217124029
NCHC30AT5****+TDR · cold climate	NF80U045V3AF***	17.4	12.0	9.5	20,600	217313376
NCHC30BT5****+TDR · cold climate	NF97U070V3B***	17.4	12.0	9.0	20,800	216743571
NCHC24AT5****+TDR · cold climate	NF80U045T3A***	17.4	11.7	9.0	21,000	217124009
NCHC30BT5****+TDR · cold climate	NF98U070M3B***	17.4	12.0	9.0	20,800	217124032
NCHC30BT5****+TDR · cold climate	NF96U070V3B***	17.4	12.0	9.0	20,800	217177705
NCUC36AT5****+TDR · cold climate	NF80U070V3AF***	17.4	12.0	9.0	20,600	217313280
NCUC30BT5****+TDR · cold climate	NF80U090V3BF***	17.4	12.0	9.0	20,800	217313237
NCUC30BT5****+TDR · cold climate	NF96U045V3BF***	17.4	12.0	9.0	20,800	217313265
NCHC30BT5****+TDR · cold climate	NF96U030S3BF***	17.4	11.7	9.0	21,000	217313396
NCHC30AT5****+TDR · cold climate	NF80X060V3A***	17.4	12.0	9.5	20,800	217124021
NCUC36BT5****+TDR · cold climate	NF97X060V3B***	17.4	12.0	9.0	20,600	216743561
NCUC30BT5****+TDR · cold climate	NF96U070V3BF***	17.4	11.7	9.0	20,800	217313268
NCHC24BT5****+TDR · cold climate	NF93U070S3BF***	17.4	11.7	9.0	21,000	217313362
NCUC36BT5****+TDR · cold climate	NF97U045V3B***	17.3	12.0	9.0	20,800	216743562
NCHC24BT5****+TDR · cold climate	NF97X060V3B***	17.3	12.0	9.0	20,800	216743565
NCHC24BT5****+TDR · cold climate	NF97U045V3B***	17.3	11.7	9.0	20,800	216743566
NCUC36BT5****+TDR · cold climate	NF96U045V3B***	17.3	12.0	9.0	20,800	217177700
NCHC24BT5****+TDR · cold climate	NF96U045V3B***	17.3	11.7	9.0	20,800	217177702
NCUC36BT5****+TDR · cold climate	NF80U070V3BF***	17.3	12.0	9.0	20,600	217313287

Yearly running cost in 10 large cities$608-$1,538

Phoenix, AZ$738/yr
Miami, FL$608/yr
Houston, TX$661/yr
Atlanta, GA$652/yr
Los Angeles, CA$631/yr
New York, NY$1,538/yr
Chicago, IL$1,245/yr
Denver, CO$1,032/yr
Seattle, WA$631/yr
Minneapolis, MN$1,275/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 GE Appliances NS18H24HA5?: The GE Appliances NS18H24HA5 is rated at up to 18.5 SEER2 and 12.3 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 206 certified matchups SEER2 ranges from 15.2-18.5.
Is the GE Appliances NS18H24HA5 good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 23,400 BTU/h at 5°F with a COP of 1.85, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the GE Appliances NS18H24HA5 cost to run per year?: At its rated efficiency it costs about $608-$1,538 a year in electricity in large U.S. cities, depending on climate and local rates - for example $738 in Phoenix and $1,275 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 GE Appliances NS18H24HA5?: ENERGY STAR lists 206 certified combinations for this outdoor unit. The highest-rated ones use NAM30E3TA5, NAM24V1TA5, NAM30V2TA5.
What refrigerant does the GE Appliances NS18H24HA5 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 $725/yrYou save $512/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 GE Appliances NS18H24HA5

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: $725
Current system, per year: $1,238
You save per year: $512
Payback: 17.6 years
Net after 10 years: -$3,879

Cooling $457Heating $269Electricity used: 4,534 kWhSaved vs. a minimum-efficiency heat pump: $224

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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Armstrong Air A7SCP18V24P-**A · cold climate18.5 SEER2 · 10.0 HSPF2
Lennox EL18KSLV-024-230A · cold climate18.5 SEER2 · 10.0 HSPF2
Trane/American Standard 5HCL6024A1000A · cold climate18.6 SEER2 · 8.6 HSPF2
Midea MDV-V24WMN10T · cold climate18.5 SEER2 · 10.0 HSPF2
NOVAIR LEA24CEN36-O · cold climate18.6 SEER2 · 10.0 HSPF2
Midea MDV-V24WMN10T(B) · cold climate18.5 SEER2 · 10.0 HSPF2

See all 331 2 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of July 17, 2026. How we use the data.