What is the SEER2 rating of the Kaden KOB-PSX12HP-2AAMA?

The Kaden KOB-PSX12HP-2AAMA is rated at up to 25.5 SEER2 and 13.0 EER2 for cooling and up to 10.6 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 5 certified matchups SEER2 ranges from 19.0-25.5.

Is the Kaden KOB-PSX12HP-2AAMA good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 8,900 BTU/h at 5°F with a COP of 2.48, so it is still 2.5 times as efficient as electric resistance heat at that temperature.

How much does the Kaden KOB-PSX12HP-2AAMA cost to run per year?

At its rated efficiency it costs about $223-$691 a year in electricity in large U.S. cities, depending on climate and local rates - for example $288 in Phoenix and $588 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Kaden KOB-PSX12HP-2AAMA the same as the ECO-AIR EDSO-12E?

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 Kaden KOB-PSX12HP-2AAMA?

ENERGY STAR lists 5 certified combinations for this outdoor unit. The highest-rated ones use KADEN KIB-PSX12WM-2AAMA, KADEN KIB-PSX12CW-2AAMA, KADEN KIB-PSX12CT-2AAMA.

12,000 BTU mini-split heat pump · KO Series

Kaden KOB-PSX12HP-2AAMA

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

Ranks #68 of 394 12,000 BTU mini-splits for cooling efficiency, and costs about $280 a year to run in a mixed climate like Atlanta.

SEER2: 25.5 Cooling efficiency over a season
Very good · beats 88%
HSPF2: 10.6 Heating efficiency over a season
Average · beats 65%
EER2: 13.0 Cooling efficiency on a 95°F day
Average · beats 62%
Heat at 5°F: 8,900 BTU/h70% of its 47°F output
Excellent · beats 96%

A good fit if…

You want low cooling bills - its SEER2 beats 88% of mini-splits.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 8,900 BTU/h at 5°F.
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

Specifications12,000 BTU, R-454B

General
Brand	Kaden
Also sold as	ECO-AIR
Outdoor unit model	KOB-PSX12HP-2AAMA
Series	KO Series
Type	Mini-split heat pump
Nominal size	12,000 BTU
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	May 20, 2026
Last certified	August 11, 2026
Cooling
SEER2Seasonal efficiency, higher is better	25.5 (range 19.0-25.5)
EER2Efficiency at 95°F outdoors	11.7-13.0
Cooling capacity	11,500-12,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	10.0-10.6
Capacity at 47°F	12,000 BTU/h
Capacity at 17°F	8,500-10,100 BTU/h
Capacity at 5°F	8,400-8,900 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.25-2.48
ENERGY STAR cold climate	Yes

Heating output as it gets colder70% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with KIB-PSX12WM-2AAMA at the standard test temperatures, in BTU/h:

Certified matchups5 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.
KIB-PSX12WM-2AAMA KADEN · cold climate	25.5	13.0	10.6	8,400	215866636
KIB-PSX12CW-2AAMA KADEN · cold climate	22.1	12.3	10.0	8,600	215866666
KIB-PSX12CT-2AAMA KADEN · cold climate	21.1	12.5	10.4	8,400	215866646
KIB-PSX12HS-2AAMA KADEN · cold climate	19.5	12.0	10.5	8,900	215866658
KIB-PSX12LS-2AAMA KADEN · cold climate	19.0	11.7	10.2	8,800	215866657

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Kaden KOB-PSX12HP-2AAMA: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

ECO-AIR EDSO-12E

Yearly running cost in 10 large cities$223-$691

Phoenix, AZ$288/yr
Miami, FL$223/yr
Houston, TX$258/yr
Atlanta, GA$280/yr
Los Angeles, CA$276/yr
New York, NY$691/yr
Chicago, IL$566/yr
Denver, CO$474/yr
Seattle, WA$294/yr
Minneapolis, MN$588/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 Kaden KOB-PSX12HP-2AAMA?: The Kaden KOB-PSX12HP-2AAMA is rated at up to 25.5 SEER2 and 13.0 EER2 for cooling and up to 10.6 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 5 certified matchups SEER2 ranges from 19.0-25.5.
Is the Kaden KOB-PSX12HP-2AAMA good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 8,900 BTU/h at 5°F with a COP of 2.48, so it is still 2.5 times as efficient as electric resistance heat at that temperature.
How much does the Kaden KOB-PSX12HP-2AAMA cost to run per year?: At its rated efficiency it costs about $223-$691 a year in electricity in large U.S. cities, depending on climate and local rates - for example $288 in Phoenix and $588 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Kaden KOB-PSX12HP-2AAMA the same as the ECO-AIR EDSO-12E?: 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 Kaden KOB-PSX12HP-2AAMA?: ENERGY STAR lists 5 certified combinations for this outdoor unit. The highest-rated ones use KADEN KIB-PSX12WM-2AAMA, KADEN KIB-PSX12CW-2AAMA, KADEN KIB-PSX12CT-2AAMA.
What refrigerant does the Kaden KOB-PSX12HP-2AAMA 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 $292/yrYou save $326/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 Kaden KOB-PSX12HP-2AAMA

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: $292
Current system, per year: $619
You save per year: $326
Payback: 13.8 years
Net after 10 years: -$1,237

Cooling $166Heating $127Electricity used: 1,828 kWhSaved vs. a minimum-efficiency heat pump: $182

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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Midea MOX230-12HFN10-M1P · cold climate25.5 SEER2 · 10.6 HSPF2
WeatherMaker 38MARBQ12AA3 · cold climate25.5 SEER2 · 10.7 HSPF2
Midea MOX3-12HFN10AE · cold climate25.5 SEER2 · 10.6 HSPF2
Senville SENA/12HF/OQ · cold climate25.5 SEER2 · 10.7 HSPF2
NOVAIR LEA12SZ35SK-O · cold climate25.5 SEER2 · 10.5 HSPF2
MOOVAIR DMA12HOS28230E8 · cold climate25.5 SEER2 · 10.7 HSPF2
Bosch BMS500-AAS012-1CSXHC · cold climate25.5 SEER2 · 10.4 HSPF2

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

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of August 11, 2026. How we use the data.