Our take in 30 seconds
Best for: mild climates or homes with backup heatStrengths
- Meets ENERGY STAR efficiency requirements.
Good to know
- Only 47% of its heat output remains at 5°F; plan on backup heat in hard freezes
- Heating efficiency (HSPF2 8.1) is in the lower third of models
- Single-stage compressor runs on/off at full power, so it is less smooth than inverter models
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (15.2) and HSPF2 (8.1). 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 MrCool MHP17018A-**A at the three ENERGY STAR test temperatures (cooling capacity is 18,000 BTU/h for reference).
Retention at 17°F: 63% · at 5°F: 47%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $504 a year in Louisiana to $1,997 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¢ | $199 | $305 | $504 |
| Florida | 14.99¢ | $149 | $426 | $575 |
| Mississippi | 14.43¢ | $287 | $308 | $595 |
| Nevada | 12.72¢ | $337 | $271 | $608 |
| Washington | 14.63¢ | $550 | $61 | $610 |
| Tennessee | 13.42¢ | $415 | $207 | $622 |
| Arizona | 15.05¢ | $233 | $392 | $625 |
| Oregon | 15.92¢ | $563 | $85 | $648 |
| North Carolina | 14.95¢ | $429 | $230 | $660 |
| Kentucky | 13.80¢ | $488 | $180 | $668 |
| Arkansas | 14.37¢ | $413 | $255 | $668 |
| South Carolina | 15.76¢ | $383 | $299 | $682 |
| Georgia | 15.90¢ | $387 | $301 | $688 |
| Texas | 15.91¢ | $316 | $377 | $693 |
| Utah | 13.31¢ | $559 | $142 | $701 |
| Alabama | 16.33¢ | $397 | $309 | $706 |
| Oklahoma | 14.82¢ | $459 | $263 | $722 |
| Idaho | 13.37¢ | $620 | $111 | $731 |
| New Mexico | 16.51¢ | $547 | $196 | $743 |
| Nebraska | 13.54¢ | $628 | $144 | $773 |
| West Virginia | 16.31¢ | $649 | $155 | $803 |
| Missouri | 16.02¢ | $602 | $209 | $811 |
| Virginia | 17.64¢ | $585 | $230 | $815 |
| Kansas | 15.47¢ | $615 | $202 | $817 |
| Wyoming | 14.43¢ | $797 | $85 | $883 |
| Colorado | 17.17¢ | $759 | $142 | $901 |
| Indiana | 17.02¢ | $752 | $171 | $924 |
| North Dakota | 13.31¢ | $853 | $71 | $924 |
| Delaware | 18.70¢ | $703 | $221 | $924 |
| Montana | 15.57¢ | $860 | $83 | $943 |
| California | 29.75¢ | $592 | $352 | $944 |
| South Dakota | 15.15¢ | $837 | $117 | $954 |
| Iowa | 17.06¢ | $867 | $152 | $1,019 |
| Ohio | 19.38¢ | $857 | $184 | $1,040 |
| Maryland | 21.40¢ | $804 | $253 | $1,057 |
| Illinois | 19.32¢ | $897 | $183 | $1,080 |
| Minnesota | 17.20¢ | $1,026 | $112 | $1,138 |
| Pennsylvania | 21.77¢ | $962 | $206 | $1,168 |
| Wisconsin | 19.41¢ | $1,072 | $138 | $1,210 |
| New Jersey | 24.61¢ | $979 | $262 | $1,241 |
| District of Columbia | 25.98¢ | $919 | $338 | $1,257 |
| Connecticut | 24.51¢ | $1,192 | $189 | $1,380 |
| Michigan | 22.99¢ | $1,219 | $163 | $1,383 |
| Vermont | 23.84¢ | $1,370 | $127 | $1,497 |
| Hawaii | 47.18¢ | $52 | $1,453 | $1,505 |
| Rhode Island | 28.18¢ | $1,370 | $200 | $1,570 |
| New York | 28.65¢ | $1,393 | $221 | $1,613 |
| New Hampshire | 27.64¢ | $1,527 | $164 | $1,691 |
| Massachusetts | 30.48¢ | $1,549 | $217 | $1,766 |
| Alaska | 29.41¢ | $1,950 | $35 | $1,985 |
| Maine | 32.11¢ | $1,845 | $152 | $1,997 |
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the MrCool MHP17018A-**A at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Midea MO1HE-H18B-2A | 18,000 | 15.2–19.3 | 10.8 | 103% | $748 (−$131) | Compare |
| LG KUSXB181A | 18,000 | 15.2–17.5 | 10 | 110% | $818 (−$61) | Compare |
| Panasonic CU-HM18BAHU | 18,000 | 15.2–19 | 9.7 | 95% | $806 (−$73) | Compare |
| Day & Night D5CUHAH18AAK+KSAIC0701230 | 18,700 | 15.2–16.5 | 9 | 87% | $898 (+$19) | Compare |
| Daikin DH6VSA1810A* | 17,100 | 16–19 | 8.8 | 75% | $788 (−$91) | Compare |
| Lennox EL17XP1-018-230A** | 18,000 | 15.2–16.8 | 8.5 | 54% | $852 (−$27) | Compare |
Full specifications
| Brand | MrCool |
| Outdoor model | MHP17018A-**A |
| Certified by | Lennox Industries |
| Product type | Ducted split system |
| Compressor | Single-stage |
| Refrigerant | R-410A |
| Cooling capacity | 18,000 BTU/h |
| Nominal size | 1.5 tons |
| SEER2 (certified range) | 15.2 – 16.8 |
| EER2 (best) | 13.5 |
| HSPF2 (best) | 8.1 |
| Heating capacity @ 47°F | 17,900 BTU/h |
| Heating capacity @ 17°F | 11,200 BTU/h |
| Heating capacity @ 5°F | 8,500 BTU/h |
| COP @ 5°F | 2.14 |
| ENERGY STAR cold-climate | No |
| Certified indoor pairings | 24 |
| Latest certification | 2026-05 |
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 MrCool MHP17018A-**A 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 $879 per year ($642 heating, $237 cooling). It ranges from about $504 in Louisiana to $1,997 in Maine.
Does the MrCool MHP17018A-**A work in cold weather?
It is not ENERGY STAR cold-climate certified. It delivers 8,500 BTU/h at 5°F (47% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.
What size is the MrCool MHP17018A-**A?
It is rated at 18,000 BTU/h of cooling, roughly 1.5 tons, and 17,900 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.