Cold-climate mini-splits using R-32 or R-454B
Ranking criteria: refrigerant listed as R-32 or R-454B; cold-climate designation = Yes; ranked by HSPF2 then % heating capacity at 5°F. GWP values are as listed in ENERGY STAR records (e.g. R-410A listed GWP 2088). Data: ENERGY STAR certification records retrieved 2026-10-17. Rankings are calculated from published ratings only. They are not hands-on tests or installations, and noise, price, warranty, installer availability and reliability are not considered (not in the data).
Across all 13,844 certified pairings: R-454B 6,046, R-410A 5,505, R-32 2,293.
| # | Outdoor brand | Outdoor unit | Indoor unit | Cooling BTU/h | Refrigerant | HSPF2 | SEER2 | % at 5°F | Record |
|---|---|---|---|---|---|---|---|---|---|
| 1 | AI AIR CONDITIONING | AO35-18N2-M1H | AW35-18N2-M1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3712452 |
| 2 | MAINLINE | ML18HP230CALH-O | ML18HP230CALH-I | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4688163 |
| 3 | Bryant | 37MPRAQ18AA3 | 615PHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 3624450 |
| 4 | Bryant | 37MPRAQ18AA3 | D5MPHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 4573107 |
| 5 | Carrier | 37MPRAQ18AA3 | 45MPHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 3624445 |
| 6 | Carrier | 37MPRAQ18AA3 | D5MPHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 4573111 |
| 7 | Midea | 37MPRAQ18AA3 | D5MPHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 3624465 |
| 8 | Payne | 37MPRAQ18AA3 | D5MPHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 3624455 |
| 9 | WEATHERMAKER | 37MPRAQ18AA3 | D5MPHAQ18XA3 | 18,000 | R-454B | 16.2 | 25.8 | 113% | 3624460 |
| 10 | KEEN Home | KEENHYMHP18AA | KEENHYMAH18AA | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4479314 |
| 11 | CanAir | 4C35SCH18H21 | 4C35SEH18H21 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4514368 |
| 12 | BLUERIDGE | BMS1826SHYC | BMS1826SHYW | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3712124 |
| 13 | BLUERIDGE | BXS6A18UC0 | BXS6A18WM0 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3997863 |
| 14 | MDV | MOD30-18HFN10-M1H | MSEPD-18HRFN10-M1H | 18,000 | R-454B | 16.2 | 25.8 | 113% | 3553155 |
| 15 | MDV | MOD30-18HFN10-M1H | MSEPD-18HRFN10-M1H-D | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3553166 |
| 16 | Comfort Aire | A-ZHP18SA-1 | B-ZHP18SA-1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3999821 |
| 17 | Comfort-Aire | A-ZHP18SA-1 | B-ZHP18SA-1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3799257 |
| 18 | KERR | A-KZP18SA-1 | B-ZKP18SA-1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3799261 |
| 19 | KERR | A-ZKP18SA-1 | B-ZKP18SA-1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4610386 |
| 20 | Kerr Kapstone | A-KZP18SA-1 | B-KZP18SA-1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4430082 |
| 21 | MOOVAIR | MSHHA18C2AN1 | MWHHA18C2AS1 | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3723206 |
| 22 | MAINLINE | ML18HP230CALH-O | ML18HP230CALH-I* | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4479974 |
| 23 | Midea | MO1SS-H18B-2A | MSESU-H18B-2A | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3627421 |
| 24 | NOVAIR | LEA18HH-SK-O | LEA18HH-SK-I | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4708005 |
| 25 | Senville | SENE-18EL-IHH | SENE-18EL-OH | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4480155 |
| 26 | Senville | SENE-18EL-OH | SENE-18EL-IHH | 18,000 | R-454B | 16.2 | 25.6 | 113% | 4480260 |
| 27 | Continental | CDHAS26B-24-O | CDHAS26B-24-I | 18,000 | R-454B | 16.2 | 25.6 | 113% | 3554395 |
| 28 | AI AIR CONDITIONING | AO35-06N2-M1H | AW35-06N2-M1 | 6,000 | R-454B | 15.6 | 35 | 150% | 3712449 |
| 29 | MAINLINE | ML06HP230CALH-O | ML06HP230CALH-I | 6,000 | R-454B | 15.6 | 35 | 150% | 4688171 |
| 30 | Airquest | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624554 |
| 31 | Arcoaire | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624484 |
| 32 | Bryant | 37MPRAQ06AA3 | 615PHAQ06XA3 | 6,000 | R-454B | 15.6 | 35.1 | 150% | 3624447 |
| 33 | Bryant | 37MPRAQ06AA3 | D5MPHAQ06XA3 | 6,000 | R-454B | 15.6 | 35.1 | 150% | 4573110 |
| 34 | Carrier | 37MPRAQ06AA3 | 45MPHAQ06XA3 | 6,000 | R-454B | 15.6 | 35.1 | 150% | 3624442 |
| 35 | Carrier | 37MPRAQ06AA3 | D5MPHAQ06XA3 | 6,000 | R-454B | 15.6 | 35.1 | 150% | 4573114 |
| 36 | Comfortmaker | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624492 |
| 37 | Day & Night | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624500 |
| 38 | Heil | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624508 |
| 39 | Keeprite | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624516 |
| 40 | Kenmore | D5CPRAH06AAK | D5FPHAH06XAK | 6,000 | R-454B | 15.6 | 33.1 | 150% | 3624524 |