ZERO heat pumps
80 ENERGY STAR certified ZERO outdoor units (64 mini-split, 16 central). The most efficient is the ZMSB-09HV-USHHC at 26.4 SEER2 and 11.6 HSPF2; 70 models are rated for cold climates.
Some of these units are also certified under AI AIR CONDITIONING, SLIMAIR, Wells, ECO AC, NG Trade, Premium Levella, Bluefin, Kanartic.
Filter by brand, efficiency or cold climate
80 models, ranked by SEER2 (cooling efficiency), then HSPF2.
| # | Type | Cold | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | ZERO ZMSB-09HV-USHHCMSH Series | Mini-split | 9,000 BTU | 15.8 | 11.6 | 11,000 | Yes | 1 | |
| 2 | ZERO ZMSB-09HV-USHHCR2-OZMSB Series | Mini-split | 9,000 BTU | 15.0 | 12.5 | 11,500 | Yes | 1 | |
| 3 | ZERO ZMSB-09HVT-USHHCR2T-Pro-25ES | Mini-split | 9,000 BTU | 14.5 | 10.5 | 9,100 | Yes | 1 | |
| 4 | ZERO ZMSB-12HVT-USHHCR2T-Pro-25ES | Mini-split | 12,000 BTU | 14.0 | 10.5 | 12,000 | Yes | 1 | |
| 5 | ZERO Z2SOV-18HDTA-US-Ofree matcht 24S R32 | Mini-split | 18,000 BTU | 11.7 | 10.0 | 14,000 | Yes | 1 | |
| 6 | ZERO ZMSB-09HV-USHHR2-OZMSB Series | Mini-split | 9,000 BTU | 14.7 | 13.0 | 8,300 | Yes | 3 | |
| 7 | ZERO ZMSB-09HV-USHHZMSB Series | Mini-split | 9,000 BTU | 14.7 | 11.6 | 7,500 | Yes | 1 | |
| 8 | ZERO ZMSB-18HV-USHHR2-OZMSB Series | Mini-split | 18,000 BTU | 13.5 | 11.4 | 13,000 | Yes | 3 | |
| 9 | ZERO Z3SOV-27HDTB-USMULIT ZONE | Mini-split | 24,000 BTU | 12.0 | 10.5 | 19,800 | Yes | 2 | |
| 10 | ZERO Z2SOV-18HDTB-USZ-MAX | Mini-split | 18,000 BTU | 13.0 | 10.5 | 16,000 | Yes | 2 | |
| 11 | ZERO ZMSB-12HV-USHHCR2-OZMSB Series | Mini-split | 12,000 BTU | 13.2 | 10.5 | 11,500 | Yes | 1 | |
| 12 | ZERO ZMSB-18HV-USHHZMSB Series | Mini-split | 18,000 BTU | 13.5 | 10.5 | 12,800 | Yes | 1 | |
| 13 | ZERO ZMSB-12HVT-USR1-S24-OBreezeIN R32 23S | Mini-split | 12,000 BTU | 13.0 | 10.0 | 10,000 | Yes | 1 | |
| 14 | ZERO ZMSB-18HVT-USR1-S24-OBreezeIN R32 23S | Mini-split | 18,000 BTU | 12.0 | 10.0 | 15,000 | Yes | 1 | |
| 15 | ZERO Z5SOV-42HDTA-US-Ofree matcht 24S R32 | Mini-split | 42,000 BTU | 11.2 | 10.0 | 31,000 | Yes | 1 | |
| 16 | ZERO ZMSB-12HVT-USHHR2Z-MAX US R454B Hyper Heat | Mini-split | 12,000 BTU | 13.0 | 10.0 | 9,100 | Yes | 1 | |
| 17 | ZERO ZMSB-24HV-USHHR2-OZMSB Series | Mini-split | 24,000 BTU | 13.0 | 10.5 | 18,500 | Yes | 3 | |
| 18 | ZERO ZMSB-18HVT-USHHCR2Z-MAX | Mini-split | 18,000 BTU | 12.5 | 10.0 | 17,800 | Yes | 2 | |
| 19 | ZERO Z3SOV-27HDM-USM3O Series | Mini-split | 30,000 BTU | 12.2 | 9.2 | 19,000 | No | 3 | |
| 20 | ZERO ZMSB-12HV110-USHHR2-OZMSB Series | Mini-split | 12,000 BTU | 12.5 | 10.4 | 7,300 | No | 1 | |
| 21 | ZERO ZMSB-12HV-USHHR2-OZMSB Series | Mini-split | 12,000 BTU | 12.2 | 11.5 | 8,600 | Yes | 3 | |
| 22 | ZERO ZMSB-12HV-USHHZMSB Series | Mini-split | 12,000 BTU | 13.0 | 10.8 | 8,400 | Yes | 1 | |
| 23 | ZERO ZMSB-12HV-USHHCZMSB Series | Mini-split | 12,000 BTU | 13.0 | 10.5 | 11,000 | Yes | 1 | |
| 24 | ZERO Z4SOV-36HDMB-USCU Series | Mini-split | 36,000 BTU | 12.0 | 10.0 | 26,000 | Yes | 3 | |
| 25 | ZERO Z3SOV-18HDMB-USCU Series | Mini-split | 18,000 BTU | 12.5 | 10.0 | 14,600 | Yes | 3 | |
| 26 | ZERO ZMSB-09HVT110-USR1-S23-OBreezeIN R32 23S | Mini-split | 9,000 BTU | 12.0 | 10.0 | 8,000 | Yes | 1 | |
| 27 | ZERO ZMSB-12HVT110-USHHR2BREEZEIN | Mini-split | 12,000 BTU | 13.0 | 10.0 | 8,900 | Yes | 1 | |
| 28 | ZERO ZMSB-24HVT-USR1-S23-OBreezeIN R32 23S | Mini-split | 24,000 BTU | 12.0 | 10.0 | 17,500 | Yes | 1 | |
| 29 | ZERO Z4SOV-36HDTA-US-Ofree matcht 24S R32 | Mini-split | 36,000 BTU | 11.2 | 10.0 | 31,000 | Yes | 1 | |
| 30 | ZERO ZMSB-18HVT-USHHR2Z-MAX US R454B Hyper Heat | Mini-split | 18,000 BTU | 12.5 | 10.0 | 13,600 | Yes | 1 | |
| 31 | ZERO Z4SOV-27HDMB-USCU Series | Mini-split | 24,000 BTU | 12.2 | 9.5 | 19,000 | Yes | 3 | |
| 32 | ZERO ZMSB-09HVT-USHHR2BREEZEIN | Mini-split | 9,000 BTU | 13.0 | 9.5 | 7,100 | Yes | 1 | |
| 33 | ZERO ZMSB-09HVT-USR1-S23-OBreezeIN R32 23S | Mini-split | 9,000 BTU | 12.0 | 9.5 | 8,000 | Yes | 1 | |
| 34 | ZERO ZMSB-24HVT-USHHR2Z-MAX US R454B Hyper Heat | Mini-split | 24,000 BTU | 12.0 | 9.5 | 18,600 | Yes | 1 | |
| 35 | ZERO Z4SOV-36HDTB-USZ-MAX | Mini-split | 36,000 BTU | 11.1 | 10.5 | 26,000 | Yes | 2 | |
| 36 | ZERO ZMSB-24HVT-USHHCR2Z-MAX | Mini-split | 24,000 BTU | 11.7 | 10.0 | 22,400 | Yes | 1 | |
| 37 | ZERO ZMSB-24HV-USHHCR2-OZMSB Series | Mini-split | 24,000 BTU | 12.5 | 13.3 | 24,000 | Yes | 1 | |
| 38 | ZERO ZMSB-24HV-USHHCZMSB Series | Mini-split | 24,000 BTU | 12.5 | 10.3 | 23,000 | Yes | 1 | |
| 39 | ZERO ZMSB-30HV-USR2-OBMS Series | Mini-split | 30,000 BTU | 12.0 | 9.0 | 20,000 | No | 1 | |
| 40 | ZERO ZMSB-18HV-USHHCZMSB Series | Mini-split | 18,000 BTU | 13.0 | 10.6 | 17,200 | Yes | 1 | |
| 41 | ZERO Z3SOV-27HDTA-US-Ofree matcht 24S R32 | Mini-split | 30,000 BTU | 11.2 | 10.0 | 21,000 | Yes | 1 | |
| 42 | ZERO Z5SOV-42HDTB-USZ-MAX | Mini-split | 42,000 BTU | 11.2 | 10.0 | 33,000 | Yes | 2 | |
| 43 | ZERO ZMSB-18HV-USHHCR2-OZMSB Series | Mini-split | 18,000 BTU | 13.0 | 10.8 | 18,000 | Yes | 1 | |
| 44 | ZERO ZMSB-09HVD-USBM series | Mini-split | 9,000 BTU | 12.6 | 9.4 | 7,000 | Yes | 1 | |
| 45 | ZERO ZMSB-09HV-USR2-OMSG Series | Mini-split | 9,000 BTU | 12.6 | 9.4 | 7,000 | Yes | 1 | |
| 46 | ZERO Z4SOV-36HDMB-USHHZ4S Series | Mini-split | 36,000 BTU | 12.2 | 11.3 | 38,000 | Yes | 3 | |
| 47 | ZERO ZMSB-09HVD110-USMSAG series | Mini-split | 9,000 BTU | 12.5 | 9.1 | 7,000 | Yes | 1 | |
| 48 | ZERO ZMSB-09HV110-USR2-OMSG Series | Mini-split | 9,000 BTU | 12.5 | 9.0 | 7,000 | Yes | 1 | |
| 49 | ZERO Z4SOV-53HDMB-USHHZ4S Series | Mini-split | 48,000 BTU | 12.0 | 10.7 | 48,000 | Yes | 3 | |
| 50 | ZERO Z4SOV-48HDMB-USCU Series | Mini-split | 42,000 BTU | 11.7 | 10.6 | 38,000 | Yes | 3 | |
| 51 | ZERO ZSOV-24HDM-USZMSB Series | Mini-split | 24,000 BTU | 12.5 | 11.2 | 20,000 | Yes | 3 | |
| 52 | ZERO Z4SOV-48HDMB-USHHZ4S Series | Mini-split | 48,000 BTU | 12.0 | 11.0 | 48,000 | Yes | 3 | |
| 53 | ZERO Z5SOV-48HDM-USMSH Series | Mini-split | 48,000 BTU | 11.0 | 10.0 | 45,000 | Yes | 3 | |
| 54 | ZERO Z3SOV-18HDM-USBM series | Mini-split | 18,000 BTU | 12.5 | 10.2 | 13,300 | Yes | 3 | |
| 55 | ZERO Z4SOV-18HDMB-USHHZ4S Series | Mini-split | 18,000 BTU | 13.0 | 10.0 | 18,000 | Yes | 3 | |
| 56 | ZERO Z4SOV-27HDMB-USHHZ4S Series | Mini-split | 30,000 BTU | 12.0 | 10.0 | 27,000 | Yes | 3 | |
| 57 | ZERO ZMSB-24HV-USHHZMSB Series | Mini-split | 24,000 BTU | 13.0 | 8.5 | 16,700 | No | 1 | |
| 58 | ZERO ZMSB-30HVD-USMOD Series | Mini-split | 30,000 BTU | 12.2 | 8.2 | 18,400 | No | 1 | |
| 59 | ZERO ZMSB-18HV-USR2-OMSG Series | Mini-split | 18,000 BTU | 11.5 | 9.1 | 11,500 | No | 1 | |
| 60 | ZERO ZMSB-33HV-USHHCR2-OZMSB Series | Mini-split | 30,000 BTU | 11.7 | 10.5 | 34,600 | Yes | 2 | |
| 61 | ZERO Z4SOV-36HDM-USBM series | Mini-split | 36,000 BTU | 11.0 | 9.2 | 24,000 | No | 1 | |
| 62 | ZERO ZMSB-18HVD-USMSH Series | Mini-split | 18,000 BTU | 11.0 | 8.7 | 11,700 | No | 1 | |
| 63 | ZERO ZSOVA-18HDMB-USHHZAVA Series | Central | 1.5-ton | 12.5 | 9.7 | 18,000 | Yes | 1 | |
| 64 | ZERO ZOV-36HDTBZ-MAX | Central | 3-ton | 10.0 | 9.0 | 26,000 | Yes | 1 | |
| 65 | ZERO ZSOV-48HDM-USLI series | Mini-split | 48,000 BTU | 9.3 | 10.0 | 35,000 | Yes | 1 | |
| 66 | ZERO ZSOVA-18HDMB-USCU Series | Central | 1.5-ton | 11.0 | 9.1 | 11,200 | No | 1 | |
| 67 | ZERO ZMSB-24HV-USR2-OMSG Series | Mini-split | 24,000 BTU | 9.6 | 9.0 | 17,000 | Yes | 1 | |
| 68 | ZERO ZSOVA-24HDMB-USHHZAVA Series | Central | 2-ton | 11.7 | 10.0 | 21,600 | Yes | 1 | |
| 69 | ZERO ZSOVA-24HDMB-USBMS Series | Central | 2-ton | 11.0 | 9.7 | 21,600 | Yes | 1 | |
| 70 | ZERO ZOV-24HDTBAHUD24 | Central | 2-ton | 10.0 | 9.0 | 18,000 | Yes | 1 | |
| 71 | ZERO ZOV-48HDTBTOP 24 | Central | 4-ton | 9.0 | 8.5 | 33,000 | Yes | 1 | |
| 72 | ZERO ZSOU-24HDG-HYPERZSOU Series | Central | 2-ton | 11.7 | 8.1 | 14,000 | No | 1 | |
| 73 | ZERO ZSOVA-36HDMB-USHHZAVA Series | Central | 3-ton | 11.7 | 10.3 | 39,000 | Yes | 1 | |
| 74 | ZERO ZOV-60HDTBTOP 24 | Central | 4-ton | 8.0 | 8.2 | 38,000 | Yes | 1 | |
| 75 | ZERO ZSOVA-30HDMB-USHHZAVA Series | Central | 2.5-ton | 11.7 | 10.0 | 32,600 | Yes | 1 | |
| 76 | ZERO ZSOVA-48HDMB-USHHZAVA Series | Central | 4-ton | 10.5 | 9.5 | 46,000 | Yes | 1 | |
| 77 | ZERO ZSOVA-36HDMB-USBNG Series | Central | 3-ton | 10.0 | 8.7 | 27,000 | Yes | 1 | |
| 78 | ZERO ZSOVA-60HDMB-USHHZAVA Series | Central | 4-ton | 10.0 | 9.0 | 52,000 | Yes | 1 | |
| 79 | ZERO ZSOVA-48HDMB-USBMS Series | Central | 4-ton | 10.0 | 8.5 | 38,000 | Yes | 1 | |
| 80 | ZERO ZSOVA-60HDMB-USBNG Series | Central | 4-ton | 8.6 | 8.4 | 38,000 | Yes | 1 |