What is the SEER2 rating of the MDV MOX430-24HFN10-M3X?

The MDV MOX430-24HFN10-M3X is rated at up to 18.7 SEER2 and 12.0 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 70 certified matchups SEER2 ranges from 15.2-18.7.

Is the MDV MOX430-24HFN10-M3X good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 21,600 BTU/h at 5°F with a COP of 2.14, so it is still 2.1 times as efficient as electric resistance heat at that temperature.

How much does the MDV MOX430-24HFN10-M3X cost to run per year?

At its rated efficiency it costs about $602-$1,525 a year in electricity in large U.S. cities, depending on climate and local rates - for example $730 in Phoenix and $1,265 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 MDV MOX430-24HFN10-M3X?

ENERGY STAR lists 70 certified combinations for this outdoor unit. The highest-rated ones use MVBDM-24HWFN10-WA3, MVBDM-24HWFN10-WA3-D, MVBDM-24HWFN10-WA3-MAS.

2-ton central heat pump · MVB Series

MDV MOX430-24HFN10-M3X

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

Ranks #70 of 331 2 ton central heat pumps for cooling efficiency, and costs about $646 a year to run in a mixed climate like Atlanta.

SEER2: 18.7 Cooling efficiency over a season
Very good · beats 80%
HSPF2: 10.5 Heating efficiency over a season
Excellent · beats 96%
EER2: 12.0 Cooling efficiency on a 95°F day
Average · beats 64%
Heat at 5°F: 21,600 BTU/h86% of its 47°F output
Average · beats 67%

A good fit if…

You want low cooling bills - its SEER2 beats 80% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 21,600 BTU/h at 5°F.
It will heat most of the year - its HSPF2 beats 96% 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	MDV
Outdoor unit model	MOX430-24HFN10-M3X
Series	MVB Series
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 12, 2022
Last certified	September 30, 2026
Cooling
SEER2Seasonal efficiency, higher is better	18.7 (range 15.2-18.7)
EER2Efficiency at 95°F outdoors	9.7-12.0
Cooling capacity	23,000-24,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.5-10.5
Capacity at 47°F	24,000-26,000 BTU/h
Capacity at 17°F	18,000-20,800 BTU/h
Capacity at 5°F	19,600-21,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.75-2.14
ENERGY STAR cold climate	Yes

Heating output as it gets colder86% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MVBDM-24HWFN10-WA3 at the standard test temperatures, in BTU/h:

Certified matchups70 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 70 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.
MVBDM-24HWFN10-WA3 · cold climate	-	18.7	12.0	10.0	20,600	214861542
MVBDM-24HWFN10-WA3-D · cold climate	-	18.6	12.0	10.0	20,600	214861588
MVBDM-24HWFN10-WA3-MAS · cold climate	-	18.6	12.0	10.0	20,600	216030933
MVBC-24HWFN10-MB3E · cold climate	-	18.4	11.7	10.0	21,600	214861541
MVBC-24HWFPN10-MB3E · cold climate	-	18.4	11.7	10.0	21,600	215865882
MVBM-24B18T3N10 · cold climate	RG19080B12MPS1	18.4	10.8	9.9	21,000	217753530
MVBC-24HWFN10-MB3E-D · cold climate	-	18.3	11.7	10.0	21,600	214861587
MVBM-24B18T3N10 · cold climate	MGV96U060B3C	17.8	10.8	9.2	20,000	217607700
MVBM-24A18T3N10 · cold climate	RL18060A12MPS1	17.7	10.5	9.4	21,000	217753585
MVBM-24B18T3N10 · cold climate	MGV96U080B3C	17.6	10.7	9.3	20,000	217607701
MVBM-24A18T3N10 · cold climate	GR9T960403AN	17.6	10.3	9.1	21,000	217754166
MVBE-24HWFN10-WM3E · cold climate	-	17.5	10.8	10.5	19,600	216025756
MVBE-24HWFN10-WM3E-MAS · cold climate	-	17.5	10.8	10.5	19,600	217509966
MVBE-24HWFN10-WM3E-CAR · cold climate	-	17.5	11.0	10.5	19,600	217730612
MVBL-24HWFN10-MI3 · cold climate	-	17.5	10.8	9.2	20,000	216620292
MVBM-24A18T3N10 · cold climate	RG19040A10MPS1	17.5	10.1	8.8	20,000	217753527
MVBM-24A18T3N10 · cold climate	GR9T960303AN	17.4	10.2	9.2	21,000	217754165
MVBM-24B18T3N10 · cold climate	S9V2B040U3VS***	17.2	10.5	8.5	20,000	217550345
MVBM-24B18T3N10 · cold climate	S9V2B060U4VS***	17.2	10.5	8.5	20,000	217550346
MVBM-24B18T3N10 · cold climate	S9V2B060D3VS***	17.2	10.5	8.5	20,000	217550347
MVBM-24B18T3N10 · cold climate	RL18080B12MPS1	17.1	10.9	9.3	20,000	217753586
MVBM-24B18T3N10 · cold climate	S9V2B080D4VS***	17.1	10.5	9.1	20,000	217753343
MVBM-24A18T3N10 · cold climate	GR9S920403AN	17.1	10.3	9.1	20,000	217754159
MVBM-24B18T3N10 · cold climate	S9V2B040D3VS***	17.1	10.4	9.0	20,000	217753342
MVBM-24B18T3N10 · cold climate	GD9S960603BN	17.0	10.3	9.3	20,000	217754171
MVBM-24B18T3N10 · cold climate	ML193DF070XE36B*	17.0	10.4	9.1	20,000	217754141
MVBM-24A18T3N10 · cold climate	RL18040A12MPS1	16.9	10.6	9.2	20,000	217753584
MVBM-24B18T3N10 · cold climate	ML193DF045XE36B*	16.9	10.4	9.0	20,000	217754140
MVBM-24B18T3N10 · cold climate	MGV80M080B4NB	16.8	10.4	9.2	20,000	218731284
MVBM-24B18T3N10 · cold climate	S9X1B040D3PSB**	16.8	10.3	9.0	20,000	217753348
MVBM-24B18T3N10 · cold climate	S9X2B040D3PSB**	16.8	10.3	9.0	20,000	217753462
MVBM-24A18T3N10 · cold climate	RG19060A10MPS1	16.7	10.1	9.3	21,000	217753528
MVBM-24B18T3N10 · cold climate	MGV80M080B4A	16.7	10.4	9.2	20,000	217753292
MVBM-24B18T3N10 · cold climate	ML296UH070XV36B*	16.7	10.2	9.2	20,000	217754158
MVBM-24A18T3N10 · cold climate	C45-2-V	16.6	10.0	9.1	20,000	217615689
MVBM-24B18T3N10 · cold climate	ML296UH045XV36B*	16.6	10.1	9.0	20,000	217754157
MVBM-24B18T3N10 · cold climate	ML193UH030XE36B*	16.6	10.3	8.9	20,000	217754142
MVBM-24B18T3N10 · cold climate	ML193UH070XE36B*	16.6	10.3	8.9	20,000	217754144
MVBM-24A18T3N10 · cold climate	GR9T960603AN	16.5	10.3	9.2	21,000	217754167
MVBM-24B18T3N10 · cold climate	MGV80M060B4A	16.5	10.3	9.1	20,000	217753291
MVBM-24B18T3N10 · cold climate	MGV80M060B4NB	16.5	10.2	9.0	20,000	218731283
MVBM-24B18T3N10 · cold climate	RG19060B12MPS1	16.4	10.6	9.6	21,000	217595488
MVBM-24B18T3N10 · cold climate	C60-2-V	16.4	10.4	9.3	20,000	217615690
MVBM-24B18T3N10 · cold climate	S9X1B040U3PSB**	16.4	10.4	9.1	20,000	217753349
MVBM-24B18T3N10 · cold climate	S9X2B040U3PSB**	16.4	10.4	9.1	20,000	217753463
MVBM-24A18T3N10 · cold climate	MGV80M060A3NB	16.4	10.3	9.1	20,000	218731282
MVBM-24A18T3N10 · cold climate	MGV80M060A3A	16.3	10.2	9.1	20,000	217753290
MVBM-24B18T3N10 · cold climate	ML296DF045XV36B*	16.3	10.0	9.1	20,000	217754156
MVBM-24B18T3N10 · cold climate	GR9S920603BN	16.2	10.4	9.3	20,000	217754160
MVBM-24B18T3N10 · cold climate	ML196UH045XE36B*	16.2	10.3	9.1	20,000	217754151
MVBM-24A18T3N10 · cold climate	GR9S960403AN	16.2	10.2	9.1	21,000	217754162
MVBM-24B18T3N10 · cold climate	GD9T960603BN	16.1	10.3	9.3	20,000	217754173
MVBM-24A18T3N10 · cold climate	MGV80M040A3NB	16.1	10.1	8.9	20,000	218731281
MVBM-24A18T3N10 · cold climate	-	16.0	10.0	9.5	21,000	216620302
MVBM-24B18T3N10 · cold climate	-	16.0	10.0	9.5	21,000	216620303
MVBM-24B18T3N10-MAS · cold climate	-	16.0	10.0	9.5	21,000	216623446
MVBM-24B18T3N10 · cold climate	GR9T960803BN	16.0	10.3	9.2	20,000	217754169
MVBM-24B18T3N10 · cold climate	ML196UH070XE36B*	16.0	10.4	9.0	20,000	217754152
MVBM-24A18T3N10 · cold climate	MGV80M040A3A	16.0	10.0	8.9	20,000	217753289
MVBM-24B18T3N10 · cold climate	GR9S920803BN	15.9	10.3	9.3	20,000	217754161

Yearly running cost in 10 large cities$602-$1,525

Phoenix, AZ$730/yr
Miami, FL$602/yr
Houston, TX$654/yr
Atlanta, GA$646/yr
Los Angeles, CA$625/yr
New York, NY$1,525/yr
Chicago, IL$1,234/yr
Denver, CO$1,023/yr
Seattle, WA$626/yr
Minneapolis, MN$1,265/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 MDV MOX430-24HFN10-M3X?: The MDV MOX430-24HFN10-M3X is rated at up to 18.7 SEER2 and 12.0 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 70 certified matchups SEER2 ranges from 15.2-18.7.
Is the MDV MOX430-24HFN10-M3X good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 21,600 BTU/h at 5°F with a COP of 2.14, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
How much does the MDV MOX430-24HFN10-M3X cost to run per year?: At its rated efficiency it costs about $602-$1,525 a year in electricity in large U.S. cities, depending on climate and local rates - for example $730 in Phoenix and $1,265 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 MDV MOX430-24HFN10-M3X?: ENERGY STAR lists 70 certified combinations for this outdoor unit. The highest-rated ones use MVBDM-24HWFN10-WA3, MVBDM-24HWFN10-WA3-D, MVBDM-24HWFN10-WA3-MAS.
What refrigerant does the MDV MOX430-24HFN10-M3X 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 $718/yrYou save $535/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 MDV MOX430-24HFN10-M3X

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: $718
Current system, per year: $1,254
You save per year: $535
Payback: 16.8 years
Net after 10 years: -$3,646

Cooling $452Heating $267Electricity used: 4,490 kWhSaved vs. a minimum-efficiency heat pump: $246

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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Carrier 37MUHAQ24AA3 · cold climate18.7 SEER2 · 10.5 HSPF2
AI AIR CONDITIONING AUO19-24N2-M3H · cold climate18.6 SEER2 · 10.5 HSPF2
Bosch BOHA-24MTB-M18S · cold climate18.9 SEER2 · 10.0 HSPF2
ComfortStar CPH3-24CD(O) · cold climate18.6 SEER2 · 10.5 HSPF2
York YZV24B2119.0 SEER2 · 8.5 HSPF2
Cooper&Hunter CH-PQ24-230VO · cold climate18.6 SEER2 · 10.5 HSPF2

See all 331 2 ton central heat pumps, ranked

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