Our take in 30 seconds
Best for: hot and mild climatesStrengths
- Cooling efficiency up to SEER2 22.6, better than 82% of models
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
- Uses newer, lower-impact R-454B refrigerant
Good to know
- Only 45% of its heat output remains at 5°F; plan on backup heat in hard freezes
- Efficiency depends on the indoor unit: SEER2 ranges 17.8–22.6, so ask which pairing you're quoted
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (17.8) and HSPF2 (9.8). 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 PUZ-AH24NL*** at the three ENERGY STAR test temperatures (cooling capacity is 24,000 BTU/h for reference).
Retention at 17°F: 53% · at 5°F: 45%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $621 a year in Louisiana to $2,723 in Alaska, 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¢ | $274 | $347 | $621 |
| Florida | 14.99¢ | $205 | $485 | $690 |
| Mississippi | 14.43¢ | $395 | $350 | $745 |
| Arizona | 15.05¢ | $320 | $446 | $767 |
| Nevada | 12.72¢ | $464 | $309 | $773 |
| Tennessee | 13.42¢ | $571 | $235 | $807 |
| Washington | 14.63¢ | $756 | $69 | $825 |
| North Carolina | 14.95¢ | $591 | $262 | $853 |
| Arkansas | 14.37¢ | $568 | $291 | $859 |
| Texas | 15.91¢ | $435 | $429 | $864 |
| South Carolina | 15.76¢ | $527 | $340 | $867 |
| Oregon | 15.92¢ | $775 | $97 | $871 |
| Georgia | 15.90¢ | $532 | $343 | $875 |
| Kentucky | 13.80¢ | $671 | $205 | $876 |
| Alabama | 16.33¢ | $546 | $352 | $899 |
| Utah | 13.31¢ | $769 | $162 | $931 |
| Oklahoma | 14.82¢ | $631 | $300 | $931 |
| New Mexico | 16.51¢ | $753 | $223 | $976 |
| Idaho | 13.37¢ | $854 | $126 | $980 |
| Nebraska | 13.54¢ | $865 | $164 | $1,029 |
| Missouri | 16.02¢ | $828 | $238 | $1,066 |
| Virginia | 17.64¢ | $805 | $262 | $1,066 |
| West Virginia | 16.31¢ | $893 | $176 | $1,069 |
| Kansas | 15.47¢ | $847 | $229 | $1,076 |
| Wyoming | 14.43¢ | $1,097 | $97 | $1,194 |
| Colorado | 17.17¢ | $1,044 | $162 | $1,206 |
| California | 29.75¢ | $814 | $401 | $1,215 |
| Delaware | 18.70¢ | $967 | $252 | $1,219 |
| Indiana | 17.02¢ | $1,035 | $195 | $1,230 |
| North Dakota | 13.31¢ | $1,174 | $81 | $1,254 |
| Montana | 15.57¢ | $1,184 | $94 | $1,278 |
| South Dakota | 15.15¢ | $1,152 | $133 | $1,284 |
| Iowa | 17.06¢ | $1,193 | $173 | $1,366 |
| Ohio | 19.38¢ | $1,179 | $209 | $1,388 |
| Maryland | 21.40¢ | $1,106 | $289 | $1,395 |
| Illinois | 19.32¢ | $1,234 | $208 | $1,442 |
| Minnesota | 17.20¢ | $1,412 | $128 | $1,540 |
| Pennsylvania | 21.77¢ | $1,324 | $235 | $1,559 |
| Wisconsin | 19.41¢ | $1,476 | $157 | $1,633 |
| New Jersey | 24.61¢ | $1,347 | $299 | $1,646 |
| District of Columbia | 25.98¢ | $1,264 | $385 | $1,649 |
| Hawaii | 47.18¢ | $72 | $1,654 | $1,726 |
| Connecticut | 24.51¢ | $1,640 | $215 | $1,854 |
| Michigan | 22.99¢ | $1,678 | $186 | $1,864 |
| Vermont | 23.84¢ | $1,885 | $145 | $2,029 |
| Rhode Island | 28.18¢ | $1,885 | $228 | $2,113 |
| New York | 28.65¢ | $1,917 | $251 | $2,168 |
| New Hampshire | 27.64¢ | $2,101 | $186 | $2,288 |
| Massachusetts | 30.48¢ | $2,132 | $247 | $2,378 |
| Maine | 32.11¢ | $2,539 | $173 | $2,712 |
| Alaska | 29.41¢ | $2,683 | $40 | $2,723 |
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 PUZ-AH24NL*** 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 (−$276) | Compare |
| Senville SENA/24HF/OQ | 24,000 | 19.2–21.5 | 11.5 | 93% | $982 (−$170) | Compare |
| Pioneer YN024GMFI22RPE | 24,000 | 19–21.5 | 11.2 | 80% | $901 (−$252) | Compare |
| Hisense AOU-24U3T25U | 24,000 | 19–20 | 10.5 | 100% | $916 (−$236) | Compare |
| Pioneer YN024GLSI24RPG | 23,000 | 19–23 | 10.4 | 76% | $940 (−$213) | Compare |
| Mitsubishi Electric PUZ-AK24NLHZ2*** | 24,000 | 17–22.8 | 10.8 | 100% | $982 (−$171) | Compare |
Full specifications
| Brand | Mitsubishi Electric |
| Outdoor model | PUZ-AH24NL*** |
| 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) | 17.8 – 22.6 |
| EER2 (best) | 13.2 |
| HSPF2 (best) | 9.8 |
| Heating capacity @ 47°F | 29,800 BTU/h |
| Heating capacity @ 17°F | 15,700 BTU/h |
| Heating capacity @ 5°F | 13,500 BTU/h |
| COP @ 5°F | 2.1 |
| ENERGY STAR cold-climate | No |
| Certified indoor pairings | 9 |
| Latest certification | 2025-03 |
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 PUZ-AH24NL*** 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 $1,153 per year ($884 heating, $269 cooling). It ranges from about $621 in Louisiana to $2,723 in Alaska.
Does the Mitsubishi Electric PUZ-AH24NL*** work in cold weather?
It is not ENERGY STAR cold-climate certified. It delivers 13,500 BTU/h at 5°F (45% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.
What size is the Mitsubishi Electric PUZ-AH24NL***?
It is rated at 24,000 BTU/h of cooling, roughly 2 tons, and 29,800 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.