What is the SEER2 rating of the Midea MO1HE-H18B-2A?

The Midea MO1HE-H18B-2A is rated at up to 19.3 SEER2 and 12.1 EER2 for cooling and up to 10.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 120 certified matchups SEER2 ranges from 15.2-19.3.

Is the Midea MO1HE-H18B-2A good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 19,600 BTU/h at 5°F with a COP of 2.12, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the Midea MO1HE-H18B-2A cost to run per year?

At its rated efficiency it costs about $438-$1,123 a year in electricity in large U.S. cities, depending on climate and local rates - for example $533 in Phoenix and $933 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 Midea MO1HE-H18B-2A?

ENERGY STAR lists 120 certified combinations for this outdoor unit. The highest-rated ones use MAWHE-H18B-2A, MAUSE-H18B-2A, MAUSE-H24B-2A.

1.5-ton central heat pump · MAU Series

Midea MO1HE-H18B-2A

Very good cooling efficiency and excellent heating efficiency for a 1.5-ton central heat pump, and certified for cold climates.

Ranks #17 of 170 1.5 ton central heat pumps for cooling efficiency, and costs about $474 a year to run in a mixed climate like Atlanta.

SEER2: 19.3 Cooling efficiency over a season
Very good · beats 89%
HSPF2: 10.8 Heating efficiency over a season
Excellent · beats 98%
EER2: 12.1 Cooling efficiency on a 95°F day
Very good · beats 74%
Heat at 5°F: 19,600 BTU/h103% of its 47°F output
Average · beats 65%

A good fit if…

You want low cooling bills - its SEER2 beats 89% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 19,600 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 98% 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

Specifications1.5 ton, R-454B

General
Brand	Midea
Outdoor unit model	MO1HE-H18B-2A
Series	MAU Series
Type	Central heat pump
Nominal size	1.5 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	September 5, 2024
Last certified	September 16, 2026
Cooling
SEER2Seasonal efficiency, higher is better	19.3 (range 15.2-19.3)
EER2Efficiency at 95°F outdoors	10.8-12.5
Cooling capacity	18,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.9-10.8
Capacity at 47°F	18,000-19,000 BTU/h
Capacity at 17°F	13,000-15,300 BTU/h
Capacity at 5°F	17,000-19,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.70-2.12
ENERGY STAR cold climate	Yes

Heating output as it gets colder103% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MAWHE-H18B-2A at the standard test temperatures, in BTU/h:

Certified matchups120 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 120 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.
MAWHE-H18B-2A · cold climate	-	19.3	12.1	10.8	19,600	216607261
MAUSE-H18B-2A · cold climate	-	19.0	12.5	10.1	18,600	215471339
MAUSE-H24B-2A · cold climate	-	19.0	12.5	10.1	18,600	218731296
MAUHE-H18B-2A · cold climate	-	19.0	12.5	9.7	18,000	215471331
MAUHE-H24B-2A · cold climate	-	19.0	12.5	9.7	18,000	218731291
MAAHE-H24B-BA-UC · cold climate	RG19080B12MPS1	18.0	11.8	10.6	19,000	218156176
MAAHE-H24B-BA · cold climate	RG19080B12MPS1	18.0	11.8	10.6	19,000	218155418
MAAHE-H24B-BA-UC · cold climate	S9V2B040U3VS***	18.0	11.7	9.1	18,000	218155987
MAAHE-H24B-BA · cold climate	S9V2B040U3VS***	18.0	11.7	9.1	18,000	218155229
MAAHE-H24B-AA-UC · cold climate	RG19040A10MPS1	17.9	11.1	9.6	18,000	218156174
MAAHE-H24B-AA · cold climate	RG19040A10MPS1	17.9	11.1	9.6	18,000	218155416
MAAHE-H24B-AA-UC · cold climate	RG19060A10MPS1	17.7	11.3	9.5	18,000	218156175
MAAHE-H24B-AA · cold climate	RG19060A10MPS1	17.7	11.3	9.5	18,000	218155417
MAAHE-H24B-BA-UC · cold climate	S9V2B080U4VS***	17.4	11.4	9.4	18,000	218155991
MAAHE-H24B-BA · cold climate	S9V2B080U4VS***	17.4	11.4	9.4	18,000	218155233
MAAHE-H24B-BA-UC · cold climate	S9V2B080D4VS***	17.4	11.4	9.2	18,000	218155990
MAAHE-H24B-BA · cold climate	S9V2B080D4VS***	17.4	11.4	9.2	18,000	218155232
MAAHE-H24B-BA-UC · cold climate	S9V2B060U4VS***	17.4	11.4	9.0	18,000	218155989
MAAHE-H24B-BA · cold climate	S9V2B060U4VS***	17.4	11.4	9.0	18,000	218155231
MAAHE-H24B-BA-UC · cold climate	S9V2B040D3VS***	17.3	11.4	9.3	18,000	218155986
MAAHE-H24B-BA · cold climate	S9V2B040D3VS***	17.3	11.4	9.3	18,000	218155228
MAAHE-H24B-BA-UC · cold climate	S9V2B060D3VS***	17.3	11.6	9.1	18,000	218155988
MAAHE-H24B-BA · cold climate	S9V2B060D3VS***	17.3	11.6	9.1	18,000	218155230
MAAHE-H24B-BA-UC · cold climate	ML193DF070XE36B*	17.2	11.7	9.9	18,000	218156430
MAAHE-H24B-BA · cold climate	ML193DF070XE36B*	17.2	11.7	9.9	18,000	218155672
MAAHE-H24B-BA-UC · cold climate	ML296UH070XV36B*	17.0	11.1	9.9	19,000	218156449
MAAHE-H24B-BA · cold climate	ML296UH070XV36B*	17.0	11.1	9.9	19,000	218155691
MAAHE-H24B-BA-UC · cold climate	ML193DF045XE36B*	17.0	11.6	9.8	18,000	218156429
MAAHE-H24B-BA · cold climate	ML193DF045XE36B*	17.0	11.6	9.8	18,000	218155671
MAAHE-H24B-AA-UC · cold climate	RL18060A12MPS1	17.0	11.7	9.6	18,000	218156232
MAAHE-H24B-AA · cold climate	RL18060A12MPS1	17.0	11.7	9.6	18,000	218155474
MAAHE-H24B-BA-UC · cold climate	ML296UH045XV36B*	16.9	11.1	9.6	18,000	218156448
MAAHE-H24B-BA · cold climate	ML296UH045XV36B*	16.9	11.1	9.6	18,000	218155690
MAAHE-H24B-AA-UC · cold climate	W801V060AM3SGA	16.9	11.3	9.4	18,000	218741639
MAAHE-H24B-AA · cold climate	W801V060AM3SGA	16.9	11.3	9.4	18,000	218741607
MAAHE-H24B-AA-UC · cold climate	MGV80M060A3NB	16.9	11.3	9.4	18,000	218741575
MAAHE-H24B-AA · cold climate	MGV80M060A3NB	16.9	11.3	9.4	18,000	218741543
MAPHE-H18B-2A · cold climate	-	16.8	12.0	10.5	19,000	216623533
MAAHE-H24B-BA-UC · cold climate	ML193UH070XE36B*	16.8	11.6	9.7	18,000	218156433
MAAHE-H24B-BA · cold climate	ML193UH070XE36B*	16.8	11.6	9.7	18,000	218155675
MAAHE-H24B-AA-UC · cold climate	C30-2-V	16.8	10.8	9.1	18,000	218155905
MAAHE-H24B-AA · cold climate	C30-2-V	16.8	10.8	9.1	18,000	218155147
MAAHE-H24B-AA-UC · cold climate	MGV80M060A3A	16.7	11.2	9.4	18,000	218155936
MAAHE-H24B-AA · cold climate	MGV80M060A3A	16.7	11.2	9.4	18,000	218155178
MAAHE-H24B-AA-UC · cold climate	W801V060AM3SFA	16.7	11.2	9.4	18,000	218466623
MAAHE-H24B-AA · cold climate	W801V060AM3SFA	16.7	11.2	9.4	18,000	218466571
MAAHE-H24B-AA-UC · cold climate	W801V060AM3SEB	16.7	11.2	9.4	18,000	218466507
MAAHE-H24B-AA · cold climate	W801V060AM3SEB	16.7	11.2	9.4	18,000	218466419
MAAHE-H24B-BA-UC · cold climate	S9X2B040D3PSB**	16.6	11.3	9.5	18,000	218156108
MAAHE-H24B-BA-UC · cold climate	S9X1B040D3PSB**	16.6	11.3	9.5	18,000	218155994
MAAHE-H24B-AA-UC · cold climate	C45-2-V	16.6	11.0	9.5	19,000	218155927
MAAHE-H24B-BA · cold climate	S9X2B040D3PSB**	16.6	11.3	9.5	18,000	218155350
MAAHE-H24B-BA · cold climate	S9X1B040D3PSB**	16.6	11.3	9.5	18,000	218155236
MAAHE-H24B-AA · cold climate	C45-2-V	16.6	11.0	9.5	19,000	218155169
MAAHE-H24B-BA-UC · cold climate	RL18080B12MPS1	16.5	11.9	9.9	19,000	218156233
MAAHE-H24B-BA · cold climate	RL18080B12MPS1	16.5	11.9	9.9	19,000	218155475
MAAHE-H24B-AA-UC · cold climate	RL18040A12MPS1	16.5	11.7	9.7	18,000	218156231
MAAHE-H24B-AA · cold climate	RL18040A12MPS1	16.5	11.7	9.7	18,000	218155473
MAAHE-H24B-AA-UC · cold climate	MGV80M040A3A	16.5	11.1	9.3	18,000	218155935
MAAHE-H24B-AA · cold climate	MGV80M040A3A	16.5	11.1	9.3	18,000	218155177

Yearly running cost in 10 large cities$438-$1,123

Phoenix, AZ$533/yr
Miami, FL$438/yr
Houston, TX$477/yr
Atlanta, GA$474/yr
Los Angeles, CA$460/yr
New York, NY$1,123/yr
Chicago, IL$910/yr
Denver, CO$755/yr
Seattle, WA$462/yr
Minneapolis, MN$933/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 Midea MO1HE-H18B-2A?: The Midea MO1HE-H18B-2A is rated at up to 19.3 SEER2 and 12.1 EER2 for cooling and up to 10.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 120 certified matchups SEER2 ranges from 15.2-19.3.
Is the Midea MO1HE-H18B-2A good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 19,600 BTU/h at 5°F with a COP of 2.12, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the Midea MO1HE-H18B-2A cost to run per year?: At its rated efficiency it costs about $438-$1,123 a year in electricity in large U.S. cities, depending on climate and local rates - for example $533 in Phoenix and $933 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 Midea MO1HE-H18B-2A?: ENERGY STAR lists 120 certified combinations for this outdoor unit. The highest-rated ones use MAWHE-H18B-2A, MAUSE-H18B-2A, MAUSE-H24B-2A.
What refrigerant does the Midea MO1HE-H18B-2A 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 $525/yrYou save $419/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 Midea MO1HE-H18B-2A

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: $525
Current system, per year: $944
You save per year: $419
Payback: 16.7 years
Net after 10 years: -$2,808

Cooling $328Heating $197Electricity used: 3,283 kWhSaved vs. a minimum-efficiency heat pump: $201

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 1.5 ton models

MDV MOX430U-18HFN1-M · cold climate19.3 SEER2 · 10.8 HSPF2
Multi MFG HHS-18HD-A · cold climate19.3 SEER2 · 10.8 HSPF2
MDV MOX430-18HFN10-M3X · cold climate19.3 SEER2 · 10.8 HSPF2
Multi MFG HHS-18HD-B · cold climate19.3 SEER2 · 10.8 HSPF2
Mainline ML18HP230LMNTH-O · cold climate19.3 SEER2 · 10.8 HSPF2
STEALTH ACIQ-18-HPB · cold climate19.3 SEER2 · 10.8 HSPF2
Innovair SHV18H2R20 · cold climate19.3 SEER2 · 10.8 HSPF2
HAVELLS GHO18H52ACXL05 · cold climate19.2 SEER2 · 9.0 HSPF2

See all 170 1.5 ton central heat pumps, ranked

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