Line-ups
AUX heat pumps
Rated products: 76 · model numbers: 103 · 5 split systems and 71 mini- or multi-splits
Of the 124 brand groups with at least 15 rated products, AUX ranks fourth for median split-system share kept at 5°F. Among its products, 3 lead their size class on at least one rating, including the AUX AM5-H42/2DR3B , the AUX ASUM18HPMULO , and the AUX ASUM42HPMULO .
The line-up at 5°F, class by class
40% 70% 100% 130% 160% 2t 2.5t 3t 4t 5t 9k 12k 18k 24k 30k 36k 42k t = ton, split; k = 1,000 Btu/h, mini 40% 70% 100% 130% 160% 2t 3t 5t 12k 24k 36k t = ton; k = 1,000 Btu/h Each dot is one rated product: listed 5°F heating capacity as a share of listed 47°F capacity, in its best match. Black bar: median of the whole size class. Products that lead their class Refrigerants Refrigerants listed: R-32 (76).
Every rated product, by size class 2-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AHU24HPV1BO 88% 23,000 9.5 19
2.5-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AHU30HPV1BO 98% 32,200 9 18
3-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AHU36HPV1BO 100% 38,000 10 18.2
4-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AHU48HPV1BO 98% 48,000 9.5 17
5-ton split systems 1 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AHU60HPV1BO 87% 48,000 9.5 16.5
9,000 Btu/h mini- and multi-splits 14 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AMAR09HP230V1CO 95% 9,500 10.5 25 AUX AFEB09HP115V1CO 95% 9,200 9.5 22 AUX AH09MHA3DI-19US 95% 9,000 8.5 19 AUX AH09MHA3DI-20US 95% 9,000 8.5 20 AUX AJAN09HP115V1CO 95% 9,000 8.5 20 AUX ASW-H09B6B8/…R3DI-C3 95% 8,800 9.5 22 AUX AMAR09HP115V1CO 94% 9,400 10.5 25 AUX AFEB09HP230V1CO 93% 9,300 9.5 23 AUX AFEB09HP230V1CO-U 93% 9,300 9 22 AUX AH09MHA2DI-19US 92% 9,200 9.2 19 AUX AH09MHA2DI-20US 92% 9,200 9.2 20 AUX AJAN09HP230V1CO 92% 9,200 9.2 22 AUX ASW-H09B6A3/…R3DI-C3 89% 8,700 8.5 22 AUX ASW-H09B6A3/Q…R3DI-C0 70% 6,700 8 22
12,000 Btu/h mini- and multi-splits 20 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AMAR12HP230V1CO 79% 9,700 10.2 25 AUX AMAR12HP115V1CO 78% 9,600 10.5 25 AUX ASW-H12C5C2/…R3DI-C5 78% 9,600 10.12 23 AUX AFEB12HP230V1CO 76% 9,300 9.5 22 AUX AFEB12HP230V1CO-U 76% 9,300 8.6 18.5 AUX ASW-H12C5B3/…R3DI-C6 76% 9,300 10 24 AUX AFEB12HP115V1CO 75% 9,200 9.5 22 AUX AH12MHA2DI-19US 75% 9,200 8.8 19 AUX AH12MHA2DI-20US 75% 9,200 8.8 20 AUX AH12MHA3DI-19US 75% 9,200 8.5 19 AUX AH12MHA3DI-20US 75% 9,200 8.5 20 AUX AJAN12HP115V1CO 75% 9,200 8.5 20 AUX AJAN12HP230V1CO 75% 9,200 8.8 21 AUX ASW-H12C5C2/P…R3DI-C5 75% 9,200 9.5 22 AUX ASW-H12C5C3/P…R3DI-C5 75% 9,200 9.5 22 AUX ASW-H12C5C3/…R3DI-C5 75% 9,200 9.5 22 AUX ASW-H12C5D2/…R3DI-C5 74% 9,100 9.5 22 AUX ASW-H12C5B2/…R3DI-C9 72% 8,900 10 24 AUX ASW-H12C5A2/ …R3DI-C5 67% 8,200 10 21 AUX ASW-H12C5A3/…R3DI-C3 67% 8,200 9 22
18,000 Btu/h mini- and multi-splits 14 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX ASUM18HPMULO 121% 21,800 11 23.3 AUX AHU18HPV1BO 113% 20,400 9 19.2 AUX AMAR18HP230V1CO 85% 15,500 10.2 25 AUX ASW-H18E3B2/…R3DI-D2 82% 15,000 10.5 25 AUX AFEB18HP230V2CO 81% 14,500 9.5 21.5 AUX ASPR18HPMULO 81% 14,500 10 22 AUX ASW-H18E3B2/…R3DI-C3 79% 14,000 9.66 21 AUX ASW-H18E3C2/…R3DI-C3 75% 13,500 9.5 22 AUX AH18MHA2DI-19US 74% 14,200 9 19 AUX AH18MHA2DI-20US 74% 14,200 9 20 AUX AJAN18HP230V1CO 74% 14,200 9 20 AUX ASW-H18E3B2/Q…R3DI-C3 70% 12,600 9 19 AUX FH18QCA2DI-20US 70% 12,600 9 20 AUX ASW-H18E3A2/ …R3DI-C3 66% 11,600 9 21
24,000 Btu/h mini- and multi-splits 10 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX ASUM24HPMULO 108% 26,000 10.5 24 AUX ASPR24HPMULO 90% 21,600 10 23 AUX AMAR24HP230V1CO 89% 21,400 10.5 25 AUX AFEB24HP230V1CO 87% 20,800 10 22 AUX AMAR24HP230V2CO 85% 20,400 10.5 25 AUX AH24MHA2DI-18US 83% 20,000 9 18 AUX AH24MHB2DI-18US 83% 20,000 9 18 AUX AJAN24HP230V1CO 83% 20,000 9 20 AUX ASW-H24G1D2/…R3DI-C6 64% 15,300 10 21 AUX ASW-H24F4D2/ …R3DI-C6 24% 5,600 10 21
30,000 Btu/h mini- and multi-splits 2 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX AM4-H30/2DR3A 82% 24,600 10 23 AUX ASPR30HPMULO 82% 24,600 10 23
36,000 Btu/h mini- and multi-splits 9 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX ASUM36HPMULO 94% 34,000 11 24 AUX AM4-H36/2DR3B 92% 33,000 11 24 AUX ASPR42HPMULO 88% 32,400 10 22 AUX AM4-H36/2DR3A 71% 25,600 10 23 AUX ASPR36HPMULO 71% 25,600 10 23 AUX AJAN36HP230V2CO 71% 23,800 8.5 20 AUX AH36LCA2DI-18US 70% 23,800 8.55 18 AUX AH36LCB2DI-18US 70% 23,800 8.55 18 AUX AJAN36HP230V1CO 70% 23,800 8.55 20
42,000 Btu/h mini- and multi-splits 2 Product, as listed under this brand Kept at 5°F Output, Btu/h HSPF2 SEER2 AUX ASUM42HPMULO 83% 35,000 10.5 24 AUX AM5-H42/2DR3B 81% 34,000 10.5 24
A similar line-up Boreal: 41 rated products, 90% with the EPA cold-climate designation. Certified as of October 27, 2026. Brand names that sell the same rated products are grouped; see how the ratings are read .