What is the SEER2 rating of the GE Appliances ASH4248UCDD?

The GE Appliances ASH4248UCDD is rated at up to 18.0 SEER2 and 8.7 EER2 for cooling and up to 8.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3 certified matchups SEER2 ranges from 15.2-18.0.

Is the GE Appliances ASH4248UCDD good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 36,800 BTU/h at 5°F with a COP of 1.75, so it is still 1.8 times as efficient as electric resistance heat at that temperature.

How much does the GE Appliances ASH4248UCDD cost to run per year?

At its rated efficiency it costs about $1,100-$3,173 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,388 in Phoenix and $2,676 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the GE Appliances ASH4248UCDD the same as the Haier 1U4248LP2HD?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the GE Appliances ASH4248UCDD?

ENERGY STAR lists 3 certified combinations for this outdoor unit. The highest-rated ones use USYL42UCDD, USYM48UCDD, USYM42UCDD.

What refrigerant does the GE Appliances ASH4248UCDD use?

It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

42,000 BTU mini-split heat pump · Endure PRO

GE Appliances ASH4248UCDD

Below average cooling and heating efficiency for a 42,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #55 of 61 42,000 BTU mini-splits for cooling efficiency, and costs about $1,305 a year to run in a mixed climate like Atlanta.

SEER2: 18.0 Cooling efficiency over a season
Below average · beats 4%
HSPF2: 8.8 Heating efficiency over a season
Below average · beats 6%
EER2: 8.7 Cooling efficiency on a 95°F day
Below average · beats 0%
Heat at 5°F: 36,800 BTU/h75% of its 47°F output
Below average · beats 1%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 36,800 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

Cooling cost matters most - its SEER2 is below average for mini-splits.
You mainly need heat - its HSPF2 is below average for mini-splits.
You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications42,000 BTU, R-410A

General
Brand	GE Appliances
Also sold as	Haier
Outdoor unit model	ASH4248UCDD
Series	Endure PRO
Type	Mini-split heat pump
Nominal size	42,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	March 21, 2023
Last certified	May 28, 2026
Cooling
SEER2Seasonal efficiency, higher is better	18.0 (range 15.2-18.0)
EER2Efficiency at 95°F outdoors	7.3-8.7
Cooling capacity	42,000-46,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.5-8.8
Capacity at 47°F	44,000-48,000 BTU/h
Capacity at 17°F	31,000-34,600 BTU/h
Capacity at 5°F	32,800-36,800 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.75
ENERGY STAR cold climate	Yes

Heating output as it gets colder75% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with USYL42UCDD at the standard test temperatures, in BTU/h:

Certified matchups3 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.
USYL42UCDD · cold climate	18.0	8.7	8.5	32,800	211744614
USYM48UCDD · cold climate	15.2	7.3	8.8	35,600	211729714
USYM42UCDD · cold climate	15.2	7.8	8.7	36,800	211729713

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the GE Appliances ASH4248UCDD: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

Haier 1U4248LP2HD

Yearly running cost in 10 large cities$1,100-$3,173

Phoenix, AZ$1,388/yr
Miami, FL$1,100/yr
Houston, TX$1,246/yr
Atlanta, GA$1,305/yr
Los Angeles, CA$1,280/yr
New York, NY$3,173/yr
Chicago, IL$2,587/yr
Denver, CO$2,159/yr
Seattle, WA$1,333/yr
Minneapolis, MN$2,676/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions6

What is the SEER2 rating of the GE Appliances ASH4248UCDD?: The GE Appliances ASH4248UCDD is rated at up to 18.0 SEER2 and 8.7 EER2 for cooling and up to 8.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3 certified matchups SEER2 ranges from 15.2-18.0.
Is the GE Appliances ASH4248UCDD good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 36,800 BTU/h at 5°F with a COP of 1.75, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
How much does the GE Appliances ASH4248UCDD cost to run per year?: At its rated efficiency it costs about $1,100-$3,173 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,388 in Phoenix and $2,676 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the GE Appliances ASH4248UCDD the same as the Haier 1U4248LP2HD?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the GE Appliances ASH4248UCDD?: ENERGY STAR lists 3 certified combinations for this outdoor unit. The highest-rated ones use USYL42UCDD, USYM48UCDD, USYM42UCDD.
What refrigerant does the GE Appliances ASH4248UCDD use?: It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $1,394/yrYou save $821/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 ASH4248UCDD

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: $1,394
Current system, per year: $2,215
You save per year: $821
Payback: 19.5 years
Net after 10 years: -$7,793

Cooling $821Heating $573Electricity used: 8,713 kWhSaved vs. a minimum-efficiency heat pump: $312

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 42,000 BTU models

LG KUSUB421A · cold climate18.5 SEER2 · 9.5 HSPF2
TOSOT TGWHD-42ND · cold climate17.0 SEER2 · 8.5 HSPF2
Fujitsu AOUH42KUAS1 · cold climate19.0 SEER2 · 10.4 HSPF2
Mitsubishi Electric PUZ-HA42NKA2 · cold climate16.3 SEER2 · 9.3 HSPF2
DELLA 048-TLP-MODU-1D5 · cold climate19.5 SEER2 · 9.0 HSPF2
Trane / Mitsubishi Electric PUZ-HA42NKA1 · cold climate16.3 SEER2 · 9.3 HSPF2
Westinghouse WHP42M5A21S · cold climate20.0 SEER2 · 9.0 HSPF2
ACD MUD42KCH23S-O · cold climate16.0 SEER2 · 8.6 HSPF2

See all 61 42,000 BTU mini-splits, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 28, 2026. How we use the data.