Viessmann heat pumps

67 ENERGY STAR certified Viessmann outdoor units (41 mini-split, 26 central). The most efficient is the DLCSRBH09AAK at 28.1 SEER2 and 12.4 HSPF2; 55 models are rated for cold climates.

Some of these units are also certified under Comfortmaker, Airquest, Smart Comfort, Heil, Day & Night, Tempstar, Midea, Keeprite.

ENERGY STAR data, updated October 12, 2026

67 models, ranked by SEER2 (cooling efficiency), then HSPF2.

#		Type						Cold
1	Viessmann DLCSRBH09AAKDLC-series	Mini-split	9,000 BTU	28.1	16.2	12.4	11,000	Yes	99
2	Viessmann D5CSHAH09AAKD5F Series	Mini-split	9,000 BTU	27.5	15.5	13.8	11,900	Yes	72
3	Viessmann DLCPRBH09AAKDLC-series	Mini-split	9,000 BTU	27.0	16.0	15.0	13,700	Yes	29
4	Viessmann DLCSRBH06AAKDLC-series	Mini-split	6,000 BTU	26.5	15.8	13.6	8,000	Yes	48
5	Viessmann DLCPRBH18AAKDLC-series	Mini-split	18,000 BTU	26.3	15.3	15.5	24,000	Yes	16
6	Viessmann D5CSHAH06AAKD5F Series	Mini-split	6,000 BTU	25.7	18.0	14.8	8,100	Yes	35
7	Viessmann D5CSHAH12AAKD5F Series	Mini-split	12,000 BTU	25.5	13.5	11.6	12,000	Yes	72
8	Viessmann DLCSRBH12AAKDLC-series	Mini-split	12,000 BTU	25.5	14.0	10.7	12,100	Yes	110
9	Viessmann DLCPRBH12AAKDLC-series	Mini-split	12,000 BTU	25.3	14.0	11.7	13,700	Yes	30
10	Viessmann D5CMHAH18CAKD5C Series	Mini-split	18,000 BTU	25.0	15.0	10.5	19,000	Yes	36
11	Viessmann D5CMHAH30EAKD5C Series	Mini-split	30,000 BTU	24.0	13.2	10.7	36,000	Yes	36
12	Viessmann D5CMHAH24DAKD5C Series	Mini-split	24,000 BTU	24.0	13.0	10.0	25,000	Yes	36
13	Viessmann DLCSRBH12AAJDLC-series	Mini-split	12,000 BTU	23.5	13.0	10.4	6,800	No	35
14	Viessmann D5CMHAH36EAKD5C Series	Mini-split	36,000 BTU	23.1	13.1	10.7	38,000	Yes	36
15	Viessmann D5CMHAH48FAKD5C Series	Mini-split	48,000 BTU	23.0	12.0	11.3	48,000	Yes	36
16	Viessmann DLCMHBH30DAKDLC series	Mini-split	30,000 BTU	22.4	12.0	9.5	23,000	No	36
17	Viessmann DLCSRBH24AAKDLC-series	Mini-split	24,000 BTU	22.3	12.5	11.5	27,000	Yes	169
18	Viessmann D5CMHAH55FAKD5C Series	Mini-split	48,000 BTU	22.3	12.0	10.7	48,000	Yes	36
19	Viessmann DLCMHBH24CAKDLC series	Mini-split	24,000 BTU	22.3	12.5	9.7	18,000	Yes	38
20	Viessmann DLCSRBH18AAKDLC-series	Mini-split	18,000 BTU	22.0	13.0	11.3	18,000	Yes	201
21	Viessmann DLCERBH09AAKDLC-series	Mini-split	9,000 BTU	21.7	12.6	9.4	7,000	Yes	16
22	Viessmann D5CSHAH18AAKD5F Series	Mini-split	18,000 BTU	21.5	12.5	12.4	18,000	Yes	97
23	Viessmann DLCERBH09AAJDLC-series	Mini-split	9,000 BTU	21.5	12.5	9.1	7,000	Yes	16
24	Viessmann D5CLHAH36AAKD5F Series	Mini-split	36,000 BTU	21.3	12.0	11.1	39,500	Yes	49
25	Viessmann D5CSHAH24AAKD5F Series	Mini-split	24,000 BTU	21.2	13.0	13.5	24,200	Yes	61
26	Viessmann DLCMHBH48EAKDLC-series	Mini-split	48,000 BTU	21.2	11.0	10.0	45,000	Yes	36
27	Viessmann DLCMRBH48EAKDLC-series	Mini-split	48,000 BTU	21.1	11.0	9.5	33,000	No	12
28	Viessmann DLCMRBH18BAKDLC-series	Mini-split	18,000 BTU	21.0	12.5	10.2	13,300	Yes	42
29	Viessmann DLCSRBH30AAKDLC-series	Mini-split	30,000 BTU	21.0	12.2	9.0	19,000	No	46
30	Viessmann DLCSRBH30AAK11DLC-series	Mini-split	30,000 BTU	21.0	12.2	9.0	20,000	No	45
31	Viessmann DLCERBH30AAKDLC-series	Mini-split	30,000 BTU	21.0	12.2	8.7	20,000	No	15
32	Viessmann D5CSRAH30AAKD5F Series	Central	2.5-ton	20.5	12.0	9.5	20,400	No	25
33	Viessmann DLCMHBH36DAKDLC-series	Mini-split	36,000 BTU	20.0	12.5	10.0	36,000	Yes	36
34	Viessmann DLCMRBH36DAKDLC-series	Mini-split	36,000 BTU	20.0	11.0	9.2	24,000	No	12
35	Viessmann DLCMTAH27CAKDLC series	Mini-split	24,000 BTU	20.0	11.5	8.5	16,400	No	12
36	Viessmann D5CSHAH33AAKD5F Series	Central	2.5-ton	19.6	12.0	10.5	35,000	Yes	25
37	Viessmann DLCERBH18AAKDLC-series	Mini-split	18,000 BTU	19.5	11.0	8.7	11,700	No	12
38	Viessmann D5CUHAH18AAKD5F Series	Central	1.5-ton	19.3	12.1	10.8	19,600	Yes	77
39	Viessmann DLCLRCH48AAKDLC-series	Mini-split	48,000 BTU	18.9	9.3	10.0	35,600	Yes	24
40	Viessmann D5CURAH18AAKD5C Series	Central	1.5-ton	18.8	11.0	9.4	11,400	No	25
41	Viessmann D5CLHAH48AAKD5F Series	Mini-split	48,000 BTU	18.7	9.4	11.0	47,500	Yes	49
42	Viessmann D5CUHAH24AAKD5F Series	Central	2-ton	18.7	12.0	10.5	21,600	Yes	97
43	Viessmann DLCMTAH48EAKDLC series	Mini-split	48,000 BTU	18.7	10.0	8.8	34,000	Yes	12
44	Viessmann D5CURAH30AAKD5C Series	Central	2.5-ton	18.6	11.0	8.7	18,700	No	12
45	Viessmann DLCVRAH09AAKDLC-series	Mini-split	9,000 BTU	18.5	10.5	8.8	7,100	Yes	12
46	Viessmann D5CURAH24AAKD5F Series	Central	2-ton	18.2	11.0	10.4	21,600	Yes	84
47	Viessmann D5CLHAH58AAKD5F Series	Mini-split	48,000 BTU	18.1	9.0	10.7	54,000	Yes	37
48	Viessmann D5CUHAH36AAKD5F Series	Central	3-ton	18.0	12.0	10.3	39,000	Yes	89
49	Viessmann DLCURAH24ABKDlseries	Central	2-ton	18.0	11.2	10.0	23,200	Yes	60
50	Viessmann D5CUHAH24AAK+KSAIC0701230Crossover Heat Pump	Central	2-ton	18.0	11.0	9.5	20,600	Yes	4017
51	Viessmann DLCURAH18ABKDlseries	Central	1.5-ton	18.0	12.4	9.5	16,500	Yes	35
52	Viessmann DLCMTAH18BAKDLC series	Mini-split	18,000 BTU	18.0	11.5	8.7	13,000	Yes	12
53	Viessmann D5CUHAH30AAKD5F Series	Central	2.5-ton	17.5	11.7	10.8	33,200	Yes	82
54	Viessmann D5CUHAH48AAKD5F Series	Central	4-ton	17.5	12.0	9.5	48,000	Yes	39
55	Viessmann D5CUHAH60AAKD5F Series	Central	4-ton	17.5	12.0	9.5	54,000	Yes	72
56	Viessmann DLCURAH24AAKDlseries	Central	2-ton	17.0	10.5	9.8	20,800	Yes	35
57	Viessmann D5CUHAH30AAK+KSAIC0701230Crossover Heat Pump	Central	2.5-ton	17.0	10.0	9.0	33,400	Yes	2702
58	Viessmann D5CUHAH36AAK+KSAIC0701230Crossover Heat Pump	Central	3-ton	17.0	10.0	9.0	31,600	Yes	2537
59	Viessmann D5CURAH36AAKD5F Series	Central	3-ton	16.7	10.2	9.3	29,200	Yes	30
60	Viessmann D5CUHAH18AAK+KSAIC0701230Crossover Heat Pump	Central	1.5-ton	16.5	10.5	9.0	17,600	Yes	506
61	Viessmann DLCURAH30ABKDlseries	Central	2.5-ton	16.2	10.0	9.7	27,000	Yes	36
62	Viessmann DLCURAH36ABKDlseries	Central	3-ton	16.0	10.0	10.0	34,400	Yes	48
63	Viessmann D5CURAH24AAK+KSAIC0701230Crossover heat pump	Central	2-ton	16.0	10.0	9.5	20,000	Yes	1011
64	Viessmann D5CURAH48AAKD5F Series	Central	4-ton	16.0	10.0	9.0	40,000	Yes	26
65	Viessmann DLCURAH48ABKDlseries	Central	4-ton	15.9	8.6	9.6	46,500	Yes	34
66	Viessmann DLCURAH60ABKDlseries	Central	5-ton	15.3	8.8	9.4	48,500	Yes	22
67	Viessmann D5CURAH60AAKD5F Series	Central	4-ton	15.2	8.7	8.4	38,000	Yes	13