Willis heat pumps
34 ENERGY STAR certified Willis outdoor units (27 mini-split, 6 central, 1 packaged). The most efficient is the AUHW09KR32-O at 30.0 SEER2 and 11.2 HSPF2; 34 models are rated for cold climates.
Some of these units are also certified under GREE, Kinghome, ECO AC, Ouellet, BOREAL, Blueridge, ACD, AC PRO.COM.
Filter by brand, efficiency or cold climate
34 models, ranked by SEER2 (cooling efficiency), then HSPF2.
| # | Type | Cold | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Willis AUHW09KR32-OAiry | Mini-split | 9,000 BTU | 16.8 | 11.2 | 11,500 | Yes | 6 | |
| 2 | Willis AUHW12KR32-OAiry | Mini-split | 12,000 BTU | 15.2 | 10.0 | 12,200 | Yes | 6 | |
| 3 | Willis AUHW18KR32-OAiry | Mini-split | 18,000 BTU | 14.3 | 10.0 | 18,000 | Yes | 1 | |
| 4 | Willis AUHW24KR32-OXS4 | Mini-split | 24,000 BTU | 14.0 | 10.0 | 24,000 | Yes | 1 | |
| 5 | Willis PUHW09KR32-OPular | Mini-split | 9,000 BTU | 15.0 | 10.4 | 10,000 | Yes | 6 | |
| 6 | Willis PUHW24KR32-OTOSOT Premium Level Series | Mini-split | 24,000 BTU | 13.7 | 10.0 | 19,000 | Yes | 1 | |
| 7 | Willis PUHW12KR32-OXS4 | Mini-split | 12,000 BTU | 13.0 | 9.5 | 11,000 | Yes | 6 | |
| 8 | Willis PUHW18KR32-OClivia | Mini-split | 18,000 BTU | 13.7 | 9.0 | 14,600 | Yes | 1 | |
| 9 | Willis PUHW12KCH24S2-OHigh efficiency series | Mini-split | 12,000 BTU | 12.5 | 9.0 | 9,000 | Yes | 1 | |
| 10 | Willis PUHW18KCH23S2-OHigh efficiency series | Mini-split | 18,000 BTU | 12.5 | 8.5 | 13,000 | Yes | 1 | |
| 11 | Willis CHW30KR32-OCharmo | Mini-split | 30,000 BTU | 11.0 | 9.0 | 23,000 | Yes | 1 | |
| 12 | Willis MZUHW18KCH21S2-ONew Multi-zone ODU | Mini-split | 18,000 BTU | 12.0 | 10.0 | 13,600 | Yes | 1 | |
| 13 | Willis MZUHW24KCH21S2-ONew Multi-zone ODU | Mini-split | 24,000 BTU | 12.5 | 10.0 | 21,600 | Yes | 1 | |
| 14 | Willis MZUHW30KCH21S2-ONew Multi-zone ODU | Mini-split | 30,000 BTU | 12.5 | 10.0 | 22,800 | Yes | 1 | |
| 15 | Willis MZUHW42KCH21S2-ONew Multi-zone ODU | Mini-split | 36,000 BTU | 12.0 | 10.0 | 32,400 | Yes | 1 | |
| 16 | Willis MZUHW36KCH21S2-OBRISA Multi-zone Series | Mini-split | 36,000 BTU | 12.0 | 10.0 | 32,400 | Yes | 1 | |
| 17 | Willis MZUHW18KR32-OM-Series | Mini-split | 18,000 BTU | 12.0 | 10.0 | 13,800 | Yes | 3 | |
| 18 | Willis MZUHW24KR32-OTOSOT Comfort Manhatthan Series | Mini-split | 24,000 BTU | 13.3 | 10.0 | 21,600 | Yes | 3 | |
| 19 | Willis MZUHW30KR32-OR32 FreeMatch | Mini-split | 30,000 BTU | 13.6 | 10.0 | 27,000 | Yes | 3 | |
| 20 | Willis MZUHW36KR32-OR32 FreeMatch | Mini-split | 36,000 BTU | 12.0 | 10.0 | 36,000 | Yes | 3 | |
| 21 | Willis MZUHW42KR32-OM-Series | Mini-split | 42,000 BTU | 13.0 | 10.0 | 37,800 | Yes | 3 | |
| 22 | Willis CHW36KR32-OCharmo | Mini-split | 36,000 BTU | 12.0 | 8.5 | 24,600 | Yes | 1 | |
| 23 | Willis CHW09KAR32-OCharmo | Mini-split | 9,000 BTU | 11.9 | 8.8 | 7,600 | Yes | 1 | |
| 24 | Willis CHW18KR32-OCharmo | Mini-split | 18,000 BTU | 12.0 | 8.5 | 12,100 | Yes | 1 | |
| 25 | Willis FLEX60KUHR32E Series | Central | 4-ton | 11.7 | 10.5 | 54,000 | Yes | 4 | |
| 26 | Willis FLEX48KUHR32FLEXX High-efficiency Series | Central | 4-ton | 11.7 | 10.0 | 48,000 | Yes | 1 | |
| 27 | Willis CHW12KR32-OCharmo | Mini-split | 12,000 BTU | 9.8 | 8.5 | 9,100 | Yes | 1 | |
| 28 | Willis CHW24KR32-OCharmo | Mini-split | 24,000 BTU | 11.9 | 8.5 | 15,700 | Yes | 1 | |
| 29 | Willis FLEX36KUHR32E Series | Central | 2.5-ton | 12.0 | 10.0 | 34,000 | Yes | 4 | |
| 30 | Willis FLEX24KUHR32FLEXX High-efficiency Series | Central | 2-ton | 12.0 | 10.0 | 25,000 | Yes | 1 | |
| 31 | Willis CHW12KCH18S2-OCharmo | Mini-split | 12,000 BTU | 8.7 | 8.5 | 8,500 | Yes | 1 | |
| 32 | Willis PRT60KUHUniversal Series Inverter Packaged Heat Pump | Packaged | 5-ton | 10.6 | 8.3 | 45,000 | Yes | 1 | |
| 33 | Willis FLEX24/36KUHFLEXX High-efficiency Series | Central | 3-ton | 10.0 | 9.0 | 28,000 | Yes | 1 | |
| 34 | Willis FLEX48/60KUHFLEXX High-efficiency Series | Central | 4-ton | 10.0 | 9.0 | 41,000 | Yes | 1 |