Our take in 30 seconds
Best for: cold and very cold climatesStrengths
- Keeps 93% of its heat at 5°F, so backup heat rarely runs
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
- Uses newer, lower-impact R-454B refrigerant
Good to know
- Efficiency depends on the indoor unit: SEER2 ranges 15.2–18.6, so ask which pairing you're quoted
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (15.2) and HSPF2 (8.9). Assumes the unit is correctly sized. How we calculate.
Heating capacity as it gets colder
A heat pump's output falls as outdoor temperature drops. This is the certified heat output of the Mitsubishi Electric SUZ-AK24NLHZ2*** at the three ENERGY STAR test temperatures (cooling capacity is 24,000 BTU/h for reference).
Retention at 17°F: 74% · at 5°F: 93%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $690 a year in Louisiana to $2,829 in Maine, driven by local electricity prices and how much heating or cooling the climate needs. Click a column to sort.
| State | Price | Heating | Cooling | Total / yr |
|---|---|---|---|---|
| Louisiana | 12.87¢ | $283 | $406 | $690 |
| Florida | 14.99¢ | $212 | $568 | $780 |
| Mississippi | 14.43¢ | $409 | $410 | $819 |
| Nevada | 12.72¢ | $480 | $362 | $842 |
| Arizona | 15.05¢ | $331 | $523 | $854 |
| Washington | 14.63¢ | $782 | $81 | $863 |
| Tennessee | 13.42¢ | $591 | $275 | $867 |
| Oregon | 15.92¢ | $801 | $113 | $914 |
| North Carolina | 14.95¢ | $611 | $307 | $918 |
| Arkansas | 14.37¢ | $588 | $340 | $928 |
| Kentucky | 13.80¢ | $695 | $240 | $934 |
| South Carolina | 15.76¢ | $545 | $398 | $944 |
| Georgia | 15.90¢ | $550 | $402 | $952 |
| Texas | 15.91¢ | $450 | $502 | $953 |
| Alabama | 16.33¢ | $565 | $413 | $978 |
| Utah | 13.31¢ | $796 | $189 | $985 |
| Oklahoma | 14.82¢ | $653 | $351 | $1,004 |
| Idaho | 13.37¢ | $883 | $148 | $1,031 |
| New Mexico | 16.51¢ | $779 | $261 | $1,040 |
| Nebraska | 13.54¢ | $895 | $192 | $1,087 |
| West Virginia | 16.31¢ | $924 | $206 | $1,130 |
| Missouri | 16.02¢ | $857 | $278 | $1,135 |
| Virginia | 17.64¢ | $832 | $306 | $1,139 |
| Kansas | 15.47¢ | $876 | $269 | $1,145 |
| Wyoming | 14.43¢ | $1,135 | $114 | $1,249 |
| Colorado | 17.17¢ | $1,080 | $190 | $1,270 |
| Delaware | 18.70¢ | $1,000 | $295 | $1,295 |
| Indiana | 17.02¢ | $1,071 | $228 | $1,299 |
| North Dakota | 13.31¢ | $1,214 | $95 | $1,309 |
| California | 29.75¢ | $842 | $470 | $1,312 |
| Montana | 15.57¢ | $1,225 | $111 | $1,335 |
| South Dakota | 15.15¢ | $1,192 | $155 | $1,347 |
| Iowa | 17.06¢ | $1,234 | $202 | $1,436 |
| Ohio | 19.38¢ | $1,219 | $245 | $1,464 |
| Maryland | 21.40¢ | $1,145 | $338 | $1,482 |
| Illinois | 19.32¢ | $1,276 | $244 | $1,520 |
| Minnesota | 17.20¢ | $1,461 | $149 | $1,610 |
| Pennsylvania | 21.77¢ | $1,370 | $275 | $1,645 |
| Wisconsin | 19.41¢ | $1,527 | $184 | $1,711 |
| New Jersey | 24.61¢ | $1,394 | $350 | $1,743 |
| District of Columbia | 25.98¢ | $1,308 | $451 | $1,759 |
| Connecticut | 24.51¢ | $1,696 | $252 | $1,948 |
| Michigan | 22.99¢ | $1,736 | $218 | $1,954 |
| Hawaii | 47.18¢ | $74 | $1,937 | $2,011 |
| Vermont | 23.84¢ | $1,950 | $169 | $2,119 |
| Rhode Island | 28.18¢ | $1,950 | $267 | $2,217 |
| New York | 28.65¢ | $1,983 | $294 | $2,277 |
| New Hampshire | 27.64¢ | $2,174 | $218 | $2,392 |
| Massachusetts | 30.48¢ | $2,206 | $289 | $2,494 |
| Alaska | 29.41¢ | $2,776 | $46 | $2,822 |
| Maine | 32.11¢ | $2,627 | $203 | $2,829 |
Similar-size alternatives
Other mini-split / multi-split units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Mitsubishi Electric SUZ-AK24NLHZ2*** at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Senville SENA-24HF-OG | 24,000 | 19–21 | 13.5 | 83% | $876 (−$353) | Compare |
| Senville SENA/24HF/OQ | 24,000 | 19.2–21.5 | 11.5 | 93% | $982 (−$247) | Compare |
| Pioneer YN024GMFI22RPE | 24,000 | 19–21.5 | 11.2 | 80% | $901 (−$329) | Compare |
| Hisense AOU-24U3T25U | 24,000 | 19–20 | 10.5 | 100% | $916 (−$313) | Compare |
| Pioneer YN024GLSI24RPG | 23,000 | 19–23 | 10.4 | 76% | $940 (−$289) | Compare |
| Mitsubishi Electric PUZ-AK24NLHZ2*** | 24,000 | 17–22.8 | 10.8 | 100% | $982 (−$248) | Compare |
Full specifications
| Brand | Mitsubishi Electric |
| Outdoor model | SUZ-AK24NLHZ2*** |
| Certified by | Mitsubishi Electric U.S. HVAC Division |
| Product type | Mini-split / multi-split |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 24,000 BTU/h |
| Nominal size | 2 tons |
| SEER2 (certified range) | 15.2 – 18.6 |
| EER2 (best) | 12.3 |
| HSPF2 (best) | 8.9 |
| Heating capacity @ 47°F | 28,000 BTU/h |
| Heating capacity @ 17°F | 20,800 BTU/h |
| Heating capacity @ 5°F | 26,000 BTU/h |
| COP @ 5°F | 2.1 |
| ENERGY STAR cold-climate | Yes |
| Certified indoor pairings | 11 |
| Latest certification | 2026-08 |
Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), retrieved November 7, 2026. Capacities and HSPF2 are the highest values across certified pairings; confirm your exact system's AHRI reference number with your installer.
Frequently asked questions
How much does the Mitsubishi Electric SUZ-AK24NLHZ2*** cost to run per year?
At the U.S. average residential electricity price of 18.16¢/kWh and typical national heating and cooling hours, we estimate about $1,230 per year ($914 heating, $315 cooling). It ranges from about $690 in Louisiana to $2,829 in Maine.
Does the Mitsubishi Electric SUZ-AK24NLHZ2*** work in cold weather?
Yes. It is ENERGY STAR cold-climate certified and delivers 26,000 BTU/h at 5°F, 93% of its 47°F capacity, with a COP of 2.1 at 5°F.
What size is the Mitsubishi Electric SUZ-AK24NLHZ2***?
It is rated at 24,000 BTU/h of cooling, roughly 2 tons, and 28,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.