MXZ-3C24NAHZ3
MXZ-3C24NAHZ3 is in the certified data.
Its certified full-speed heating output at 5°F is 25,000 Btu/h7.33 kW, 100% of its 47°F rating (tests at different compressor speeds) in its certified pairing.
Mitsubishi Electric · mini-split heat pump
MXZ-3C24NAHZ3 is in the certified data as of Sep 19, 2026.
- 24,000 Btu (2-ton)
- Mini-split
- Variable speed
- US and Canada
Certified heating and cooling
Heating at 47°F
25,0007.33NR
No 47°F rating for this pairing.
14,0004.10NR at 17°F
25,0007.33NR at 5°F
Btu/hkW, certified
1.95NR COP at 5°F
Heating and cooling by outdoor temperature
This pairing delivers 25,000 Btu/h7.33 kW of heat at 47°F, 14,000 Btu/h4.10 kW at 17°F, and 25,000 Btu/h7.33 kW at 5°F, 100% of its 47°F rating. It delivers 22,000 Btu/h6.45 kW of cooling at 95°F. At 5°F that is 6,000 Btu/h1.76 kW above the example heating load of 19,000 Btu/h5.57 kW; at 95°F it is 12,500 Btu/h3.66 kW above the example cooling load of 9,500 Btu/h2.78 kW.
Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at normal speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 2-ton mini-split models, one value per model. The shaded 17 to 45°F band is the frosting range: the outdoor coil can frost, and the unit pauses to defrost.
The dashed lines are example loads for a typical area of about 800 sq ft where winters reach 5°F: heating runs from 19,000 Btu/h5.57 kW at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 9,500 Btu/h2.78 kW at 95°F, at 1,000 sq ft per ton. A house in a hot climate or with large west-facing windows can need twice as much cooling. They are examples, not your building.
AHRI certificate 209836203 · listed by Mitsubishi Electric · certified Feb 24, 2025 · 1 pairing carries these values
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Threshold comparisons use the unit’s certified figures across its pairings. Programs also set service-area, installation, and product-list requirements.
Certified output and power use
| Outdoor temperature | Certified outputBtu/h | One scale | vs class median | COPat 5°F |
|---|---|---|---|---|
| 5°Ffull speed | 25,0007.33 kW | +32% | 1.95 | |
| 17°Ffull speed | 14,0004.10 kW | −30% | NR | |
| 47°Fnormal speed | 25,0007.33 kW | 0% | NR | |
| 95°Fcooling, full load | 22,0006.45 kW | — | NR |
EER2 13.5 in that test. SEER2 19.0 over the modeled cooling season.
Power use at each temperature
- Electrical input in the 5°F full-speed test
- 3.76kW
- Electrical input in the 95°F cooling test
- 1.63kW
- Seasonal average heating COP
- 2.64
These exclude backup resistance heat.
How it compares with other 24,000 Btu heat pumps
2-ton mini-split models
- This pairing at 5°F
- 25,000 Btu/h7.33 kWNR
- This unit at 5°F median across its pairings
- 25,000 Btu/h7.33 kW
- Median of 2-ton mini-split models at 5°F
- 19,000 Btu/h5.57 kW
- Models in this group
- 917
This unit is above 87% of them, at number 117 of 917 by heat at 5°F. The middle half of the group runs 18,000 to 23,000 Btu/h.
Closest models by heat at 5°F
- MOD30-24HFN1-MU0WAlsetria, Direct Air + 2 more · 25,000 Btu/h
- MOD30-24HFN1-MU0W-LMDV · 25,000 Btu/h
- MSH243F25MCAAFranklin · 25,000 Btu/h
- NTXMPH24A132CAmerican Standard / Mitsubishi Electric and Trane / Mitsubishi Electric · 25,000 Btu/h
- NTXSKH24A112Trane / Mitsubishi Electric · 25,000 Btu/h
- O-HH-24-HP-C-230AMRCOOL · 25,000 Btu/h
Every 24,000 Btu (2-ton) unit, ranked by cooling efficiency, then heating efficiency
Certified values for MXZ-3C24NAHZ3
1 pairing · 1 AHRI certificate
This pairing is the one shown above. Under all pairings, a single figure means every pairing agrees and a range means the pairing decides.
| This pairing | All pairings | |
|---|---|---|
| Heating | ||
| Heat output at 47°F normal speed | 25,000 Btu/h7.33 kWNR | 25,000 Btu/h7.33 kW |
| Heat output at 17°F full speed | 14,000 Btu/h4.10 kWNR | 14,000 Btu/h4.10 kW |
| Heat output at 5°F full speed | 25,000 Btu/h7.33 kWNR | 25,000 Btu/h7.33 kW |
| Heat output below 5°F | NR | NR |
| Cold output 5°F output as a % of the 47°F rating | 100%NR | |
| COP at 5°F full speed | 1.95NR | 1.95 |
| HSPF2 Region IV | 9.0NR | 9.0 |
| Cooling | ||
| Cooling capacity at 95°F full-load test | 22,000 Btu/h6.45 kWNR | 22,000 Btu/h6.45 kW |
| EER2 at 95°F | 13.5NR | 13.5 |
| SEER2 cooling season | 19.0NR | 19.0 |
| Cooling at other temperatures | NR | NR |
| Equipment and listing | ||
| Refrigerant | R-410A | |
| Compressor | Variable speed | |
| Indoor unit | None listed | None |
| Furnace | No furnace | None |
| Cold-climate designation EPA's designation, as published | Yes | On every pairing |
| ENERGY STAR Most Efficient EPA's designation, as published | Yes | On every pairing |
| Where it is sold | US and Canada | US and Canada |
| Model string as certified | MXZ-3C24NAHZ3*** | |
Pairings, by indoor-unit class
1 certified pairing
One row per indoor unit certified with this outdoor unit.
Ductless indoor
-
None listed (the pairing on screen) Mitsubishi Electric 25,000 Btu/h7.33 kWat 5°F, full speed
| Indoor unit | Brand | At 5°FBtu/hkW · full speed | At 47°FBtu/hkW · normal speed | At 95°FBtu/hkW · cooling | Cold output% of 47°F rating | COP 5°Ffull speed | Cold climate | Pairings |
|---|---|---|---|---|---|---|---|---|
| None listed (the pairing on screen) | Mitsubishi Electric | 25,0007.33 | 25,0007.33 | 22,0006.45 | 100% | 1.95 | Yes | 1 |
Sold as, and units with identical certified values
Brands listing this model number
Model number as listed
- MXZ-3C24NAHZ3*** 1 pairing
Variants of the same model number
2 units in this group. Basis: identical certified values in the certified data. This grouping is our inference, not a field in the certified data.
1 of 2 shown.
What affects the price
We don't have prices. These things drive the cost.
- The size of the unit, and the indoor equipment on the same certificate.
- Whether existing ductwork is reused, altered, or replaced.
- The electrical work: a circuit, a disconnect, and sometimes a panel change.
- Refrigerant line length and how the outdoor unit is mounted.
- Permits and inspection, which vary by municipality.
- Removing and disposing of the old equipment.
- Local labor rates and how busy the season is.
- Rebates and tax credits, which change and have deadlines.
History and definitions
History
- First certified record
- Most recent certified record
- Measurements reported
- Feb 24, 2025
- Status
- In the certified data
Field definitions
- COP
- Heat delivered for each unit of electricity used. A COP of 2.5 gives 2.5 times the heat of an electric baseboard heater.
- HSPF2
- Heating efficiency over a typical season. Higher uses less electricity.
- SEER2
- Cooling efficiency over a typical season. Higher uses less electricity.
- EER2
- Cooling output divided by electrical input in the 95°F full-load test, in Btu/h per watt.
- Cold output
- Heat output at 5°F as a percentage of the 47°F rating.
- % of rating at 17°F
- Heat output at 17°F as a percentage of the 47°F rating.
NR not in the certified dataNC not cold-climate certifiedSP single pairing onlyVP varies by pairing; see the pairings tableWD withdrawn since the certified data was last read