Our take in 30 seconds
Best for: cold and very cold climatesStrengths
- Keeps 90% of its heat at 5°F, so backup heat rarely runs
- Heating efficiency (HSPF2 12.4) beats 97% of models
- Cooling efficiency up to SEER2 21.5, better than 78% of models
- Variable-speed compressor: quieter, steadier temperatures and better humidity control
Good to know
- Efficiency depends on the indoor unit: SEER2 ranges 18–21.5, so ask which pairing you're quoted
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (18) and HSPF2 (12.4). 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 Bryant 37MAHAQ18AA3 at the three ENERGY STAR test temperatures (cooling capacity is 18,000 BTU/h for reference).
Retention at 17°F: 90% · at 5°F: 90%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $403 a year in Louisiana to $1,475 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¢ | $145 | $257 | $403 |
| Washington | 14.63¢ | $401 | $51 | $452 |
| Florida | 14.99¢ | $109 | $360 | $469 |
| Mississippi | 14.43¢ | $209 | $260 | $469 |
| Nevada | 12.72¢ | $246 | $229 | $475 |
| Tennessee | 13.42¢ | $303 | $174 | $477 |
| Oregon | 15.92¢ | $411 | $72 | $482 |
| Arizona | 15.05¢ | $170 | $331 | $501 |
| North Carolina | 14.95¢ | $313 | $194 | $508 |
| Kentucky | 13.80¢ | $356 | $152 | $508 |
| Arkansas | 14.37¢ | $301 | $216 | $517 |
| Utah | 13.31¢ | $408 | $120 | $528 |
| South Carolina | 15.76¢ | $280 | $252 | $532 |
| Georgia | 15.90¢ | $282 | $254 | $536 |
| Idaho | 13.37¢ | $453 | $94 | $546 |
| Texas | 15.91¢ | $231 | $318 | $549 |
| Alabama | 16.33¢ | $290 | $261 | $551 |
| Oklahoma | 14.82¢ | $335 | $222 | $557 |
| New Mexico | 16.51¢ | $399 | $165 | $565 |
| Nebraska | 13.54¢ | $459 | $122 | $580 |
| West Virginia | 16.31¢ | $474 | $130 | $604 |
| Missouri | 16.02¢ | $439 | $176 | $615 |
| Kansas | 15.47¢ | $449 | $170 | $619 |
| Virginia | 17.64¢ | $427 | $194 | $621 |
| Wyoming | 14.43¢ | $582 | $72 | $654 |
| Colorado | 17.17¢ | $554 | $120 | $674 |
| North Dakota | 13.31¢ | $623 | $60 | $682 |
| Indiana | 17.02¢ | $549 | $145 | $694 |
| Montana | 15.57¢ | $628 | $70 | $698 |
| Delaware | 18.70¢ | $513 | $187 | $700 |
| South Dakota | 15.15¢ | $611 | $98 | $709 |
| California | 29.75¢ | $432 | $298 | $729 |
| Iowa | 17.06¢ | $633 | $128 | $761 |
| Ohio | 19.38¢ | $625 | $155 | $780 |
| Maryland | 21.40¢ | $587 | $214 | $801 |
| Illinois | 19.32¢ | $654 | $155 | $809 |
| Minnesota | 17.20¢ | $749 | $95 | $844 |
| Pennsylvania | 21.77¢ | $702 | $174 | $876 |
| Wisconsin | 19.41¢ | $783 | $116 | $899 |
| New Jersey | 24.61¢ | $714 | $221 | $936 |
| District of Columbia | 25.98¢ | $670 | $286 | $956 |
| Michigan | 22.99¢ | $890 | $138 | $1,028 |
| Connecticut | 24.51¢ | $870 | $159 | $1,029 |
| Vermont | 23.84¢ | $1,000 | $107 | $1,107 |
| Rhode Island | 28.18¢ | $1,000 | $169 | $1,169 |
| New York | 28.65¢ | $1,017 | $186 | $1,203 |
| New Hampshire | 27.64¢ | $1,115 | $138 | $1,253 |
| Hawaii | 47.18¢ | $38 | $1,227 | $1,265 |
| Massachusetts | 30.48¢ | $1,131 | $183 | $1,314 |
| Alaska | 29.41¢ | $1,423 | $29 | $1,452 |
| Maine | 32.11¢ | $1,347 | $128 | $1,475 |
Same equipment sold under other brands
These listings share the same certifying manufacturer (Carrier Corporation) and identical certified capacities and efficiency ratings, so they are almost certainly the same hardware with a different badge. If you get quotes for any of them, you are comparing installation price and warranty, not equipment. How rebadging works.
- Carrier 37MAHAQ18AA3
- Midea 37MAHAQ18AA3
- Payne 37MAHAQ18AA3
- Weathermaker 37MAHAQ18AA3
Plus 12 more identical listings in the ENERGY STAR database.
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 Bryant 37MAHAQ18AA3 at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Bryant 37MARAQ18AA3 | 18,000 | 20–23.9 | 13.5 | 71% | $610 (−$58) | Compare |
| Senville SENA-18HF-OG | 18,000 | 18–21.4 | 12.3 | 90% | $672 (+$4) | Compare |
| Fujitsu AOUH18KUAS1 | 18,000 | 18.6–26.3 | 11.4 | 82% | $744 (+$75) | Compare |
| Fujitsu AOUH18LUAS1 | 18,000 | 18.6–23.5 | 11.2 | 95% | $660 (−$8) | Compare |
| Senville SENA/18HF/OQ | 18,000 | 18–21.5 | 11.3 | 95% | $688 (+$20) | Compare |
| Payne 38MARBQ18AA3 | 18,000 | 18–21.5 | 11.3 | 90% | $714 (+$46) | Compare |
Full specifications
| Brand | Bryant |
| Outdoor model | 37MAHAQ18AA3 |
| Certified by | Carrier Corporation |
| Product type | Mini-split / multi-split |
| Compressor | Variable-speed (inverter) |
| Refrigerant | R-454B |
| Cooling capacity | 18,000 BTU/h |
| Nominal size | 1.5 tons |
| SEER2 (certified range) | 18 – 21.5 |
| EER2 (best) | 12.6 |
| HSPF2 (best) | 12.4 |
| Heating capacity @ 47°F | 20,000 BTU/h |
| Heating capacity @ 17°F | 18,000 BTU/h |
| Heating capacity @ 5°F | 18,000 BTU/h |
| COP @ 5°F | 2.1 |
| ENERGY STAR cold-climate | Yes |
| Certified indoor pairings | 8 |
| Latest certification | 2026-06 |
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 Bryant 37MAHAQ18AA3 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 $668 per year ($469 heating, $200 cooling). It ranges from about $403 in Louisiana to $1,475 in Maine.
Does the Bryant 37MAHAQ18AA3 work in cold weather?
Yes. It is ENERGY STAR cold-climate certified and delivers 18,000 BTU/h at 5°F, 90% of its 47°F capacity, with a COP of 2.1 at 5°F.
What size is the Bryant 37MAHAQ18AA3?
It is rated at 18,000 BTU/h of cooling, roughly 1.5 tons, and 20,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.
Is the Bryant 37MAHAQ18AA3 the same as the Carrier 37MAHAQ18AA3?
Very likely. Both are certified by Carrier Corporation with identical capacities and efficiency ratings in the ENERGY STAR database, which indicates the same equipment sold under different brands.