Our take in 30 seconds
Best for: cold and very cold climatesStrengths
- Keeps 103% of its heat at 5°F, so backup heat rarely runs
- Heating efficiency (HSPF2 10.8) beats 90% of models
- 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 15.2–19.3, 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 (10.8). 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 Midea MO1HE-H18B-2A at the three ENERGY STAR test temperatures (cooling capacity is 18,000 BTU/h for reference).
Retention at 17°F: 81% · at 5°F: 103%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $463 a year in Louisiana to $1,621 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¢ | $158 | $305 | $463 |
| Washington | 14.63¢ | $438 | $61 | $498 |
| Oregon | 15.92¢ | $448 | $85 | $533 |
| Mississippi | 14.43¢ | $228 | $308 | $536 |
| Tennessee | 13.42¢ | $331 | $207 | $537 |
| Nevada | 12.72¢ | $269 | $271 | $540 |
| Florida | 14.99¢ | $119 | $426 | $545 |
| Kentucky | 13.80¢ | $388 | $180 | $568 |
| North Carolina | 14.95¢ | $342 | $230 | $572 |
| Arizona | 15.05¢ | $185 | $392 | $577 |
| Arkansas | 14.37¢ | $329 | $255 | $584 |
| Utah | 13.31¢ | $445 | $142 | $587 |
| South Carolina | 15.76¢ | $305 | $299 | $604 |
| Idaho | 13.37¢ | $494 | $111 | $605 |
| Georgia | 15.90¢ | $308 | $301 | $609 |
| Alabama | 16.33¢ | $316 | $309 | $625 |
| Oklahoma | 14.82¢ | $365 | $263 | $628 |
| Texas | 15.91¢ | $252 | $377 | $629 |
| New Mexico | 16.51¢ | $436 | $196 | $631 |
| Nebraska | 13.54¢ | $500 | $144 | $645 |
| West Virginia | 16.31¢ | $516 | $155 | $671 |
| Missouri | 16.02¢ | $479 | $209 | $688 |
| Kansas | 15.47¢ | $490 | $202 | $691 |
| Virginia | 17.64¢ | $466 | $230 | $695 |
| Wyoming | 14.43¢ | $635 | $85 | $720 |
| Colorado | 17.17¢ | $604 | $142 | $746 |
| North Dakota | 13.31¢ | $679 | $71 | $750 |
| Montana | 15.57¢ | $685 | $83 | $768 |
| Indiana | 17.02¢ | $599 | $171 | $770 |
| Delaware | 18.70¢ | $559 | $221 | $781 |
| South Dakota | 15.15¢ | $666 | $117 | $783 |
| California | 29.75¢ | $471 | $352 | $823 |
| Iowa | 17.06¢ | $690 | $152 | $842 |
| Ohio | 19.38¢ | $682 | $184 | $865 |
| Maryland | 21.40¢ | $640 | $253 | $893 |
| Illinois | 19.32¢ | $714 | $183 | $897 |
| Minnesota | 17.20¢ | $817 | $112 | $929 |
| Pennsylvania | 21.77¢ | $766 | $206 | $972 |
| Wisconsin | 19.41¢ | $854 | $138 | $992 |
| New Jersey | 24.61¢ | $779 | $262 | $1,042 |
| District of Columbia | 25.98¢ | $731 | $338 | $1,070 |
| Michigan | 22.99¢ | $971 | $163 | $1,134 |
| Connecticut | 24.51¢ | $949 | $189 | $1,137 |
| Vermont | 23.84¢ | $1,090 | $127 | $1,218 |
| Rhode Island | 28.18¢ | $1,091 | $200 | $1,291 |
| New York | 28.65¢ | $1,109 | $221 | $1,329 |
| New Hampshire | 27.64¢ | $1,216 | $164 | $1,379 |
| Massachusetts | 30.48¢ | $1,233 | $217 | $1,450 |
| Hawaii | 47.18¢ | $42 | $1,453 | $1,494 |
| Alaska | 29.41¢ | $1,552 | $35 | $1,587 |
| Maine | 32.11¢ | $1,469 | $152 | $1,621 |
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Midea MO1HE-H18B-2A at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| LG KUSXB181A | 18,000 | 15.2–17.5 | 10 | 110% | $818 (+$70) | Compare |
| Panasonic CU-HM18BAHU | 18,000 | 15.2–19 | 9.7 | 95% | $806 (+$58) | Compare |
| Day & Night D5CUHAH18AAK+KSAIC0701230 | 18,700 | 15.2–16.5 | 9 | 87% | $898 (+$150) | Compare |
| Daikin DH6VSA1810A* | 17,100 | 16–19 | 8.8 | 75% | $788 (+$40) | Compare |
| Lennox EL17XP1-018-230A** | 18,000 | 15.2–16.8 | 8.5 | 54% | $852 (+$104) | Compare |
| MrCool MHP17018A-**A | 18,000 | 15.2–16.8 | 8.1 | 47% | $879 (+$131) | Compare |
Full specifications
| Brand | Midea |
| Outdoor model | MO1HE-H18B-2A |
| Certified by | Midea America Corp. |
| Product type | Ducted split system |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 18,000 BTU/h |
| Nominal size | 1.5 tons |
| SEER2 (certified range) | 15.2 – 19.3 |
| EER2 (best) | 12.5 |
| HSPF2 (best) | 10.8 |
| Heating capacity @ 47°F | 19,000 BTU/h |
| Heating capacity @ 17°F | 15,300 BTU/h |
| Heating capacity @ 5°F | 19,600 BTU/h |
| COP @ 5°F | 2.12 |
| ENERGY STAR cold-climate | Yes |
| Certified indoor pairings | 118 |
| Latest certification | 2026-09 |
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 Midea MO1HE-H18B-2A 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 $748 per year ($511 heating, $237 cooling). It ranges from about $463 in Louisiana to $1,621 in Maine.
Does the Midea MO1HE-H18B-2A work in cold weather?
Yes. It is ENERGY STAR cold-climate certified and delivers 19,600 BTU/h at 5°F, 103% of its 47°F capacity, with a COP of 2.12 at 5°F.
What size is the Midea MO1HE-H18B-2A?
It is rated at 18,000 BTU/h of cooling, roughly 1.5 tons, and 19,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.