What is the SEER2 rating of the Deye DWLA4-12KR2(US)?

The Deye DWLA4-12KR2(US) is rated at up to 21.5 SEER2 and 12.8 EER2 for cooling and up to 10.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Deye DWLA4-12KR2(US) good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 10,000 BTU/h at 5°F with a COP of 2.05, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the Deye DWLA4-12KR2(US) cost to run per year?

At its rated efficiency it costs about $242-$761 a year in electricity in large U.S. cities, depending on climate and local rates - for example $314 in Phoenix and $648 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Deye DWLA4-12KR2(US) the same as the Deye DWLA4-ACDC1-12KR2(US)?

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 Deye DWLA4-12KR2(US)?

ENERGY STAR lists 4 certified combinations for this outdoor unit. The highest-rated ones use DGLA4-12KR2(US), EG4 DGLA4-12KR2(US), airspool DGLA4-12KR2(US).

12,000 BTU mini-split heat pump · EVI HEAT

Deye DWLA4-12KR2(US)

Below average cooling efficiency and very good heating efficiency for a 12,000 BTU mini-split heat pump, and certified for cold climates.

Ranks #319 of 394 12,000 BTU mini-splits for cooling efficiency, and costs about $307 a year to run in a mixed climate like Atlanta.

SEER2: 21.5 Cooling efficiency over a season
Below average · beats 39%
HSPF2: 10.8 Heating efficiency over a season
Very good · beats 71%
EER2: 12.8 Cooling efficiency on a 95°F day
Average · beats 56%
Heat at 5°F: 10,000 BTU/h74% of its 47°F output
Average · beats 60%

A good fit if…

Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 10,000 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 71% of mini-splits.
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.

Calculate my running cost

Details

Specifications12,000 BTU, R-32

General
Brand	Deye
Also sold as	EG4, airspool, Photon AC
Outdoor unit model	DWLA4-12KR2(US)
Series	EVI HEAT
Type	Mini-split heat pump
Nominal size	12,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-32
Connected (smart) capable	No
On the market since	January 1, 2025
Last certified	September 30, 2026
Cooling
SEER2Seasonal efficiency, higher is better	21.5 (range 21.5)
EER2Efficiency at 95°F outdoors	12.8
Cooling capacity	11,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	10.8
Capacity at 47°F	13,500 BTU/h
Capacity at 17°F	11,000 BTU/h
Capacity at 5°F	10,000 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.05
ENERGY STAR cold climate	Yes

Heating output as it gets colder74% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with DGLA4-12KR2(US) at the standard test temperatures, in BTU/h:

Certified matchups4 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.
DGLA4-12KR2(US) · cold climate	21.5	12.8	10.8	10,000	216021342
DGLA4-12KR2(US) EG4 · cold climate	21.5	12.8	10.8	10,000	216772361
DGLA4-12KR2(US) airspool · cold climate	21.5	12.8	10.8	10,000	217958905
DGLA4-12KR2(US) Photon AC · cold climate	21.5	12.8	10.8	10,000	218689975

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Deye DWLA4-12KR2(US): the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

Deye DWLA4-ACDC1-12KR2(US)

Yearly running cost in 10 large cities$242-$761

Phoenix, AZ$314/yr
Miami, FL$242/yr
Houston, TX$282/yr
Atlanta, GA$307/yr
Los Angeles, CA$304/yr
New York, NY$761/yr
Chicago, IL$623/yr
Denver, CO$522/yr
Seattle, WA$324/yr
Minneapolis, MN$648/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 Deye DWLA4-12KR2(US)?: The Deye DWLA4-12KR2(US) is rated at up to 21.5 SEER2 and 12.8 EER2 for cooling and up to 10.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Deye DWLA4-12KR2(US) good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 10,000 BTU/h at 5°F with a COP of 2.05, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the Deye DWLA4-12KR2(US) cost to run per year?: At its rated efficiency it costs about $242-$761 a year in electricity in large U.S. cities, depending on climate and local rates - for example $314 in Phoenix and $648 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Deye DWLA4-12KR2(US) the same as the Deye DWLA4-ACDC1-12KR2(US)?: 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 Deye DWLA4-12KR2(US)?: ENERGY STAR lists 4 certified combinations for this outdoor unit. The highest-rated ones use DGLA4-12KR2(US), EG4 DGLA4-12KR2(US), airspool DGLA4-12KR2(US).
What refrigerant does the Deye DWLA4-12KR2(US) use?: It uses 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 $320/yrYou save $288/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 Deye DWLA4-12KR2(US)

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: $320
Current system, per year: $608
You save per year: $288
Payback: 13.9 years
Net after 10 years: -$1,120

Cooling $180Heating $140Electricity used: 2,001 kWhSaved vs. a minimum-efficiency heat pump: $152

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 12,000 BTU models

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ACIQ UB1MSHQCO1221.7 SEER2 · 9.5 HSPF2
GREE GWH12ATCXD-A6DNA1B/O · cold climate21.5 SEER2 · 8.5 HSPF2
Mitsubishi Electric MUZ-GS12NAHZ · cold climate21.7 SEER2 · 9.6 HSPF2
GREE GWH12ATCXD-D6DNA1B/O · cold climate21.5 SEER2 · 8.5 HSPF2
Mitsubishi Electric SUZ-AA12NL21.7 SEER2 · 10.0 HSPF2
TGM GRH32IT12AS · cold climate21.5 SEER2 · 8.5 HSPF2

See all 394 12,000 BTU mini-splits, ranked

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