Heat pump model directory / page 485
Browse air-source heat pump outdoor models listed for the US market. Compare SEER2 and HSPF2 source ratings, listed component combinations and documented coverage on each model page.
Before comparing ratings: how matched systems work.
11,881 models · Source-backed US equipment index
A model may have several rated combinations.WillisCharmo
Air-source heat pumpCHW24KR32-O
19SEER2
8.5HSPF2
1 record View configuration
WillisCharmo
Air-source heat pumpCHW30KR32-O
22SEER2
9HSPF2
1 record View configuration
WillisCharmo
Air-source heat pumpCHW36KR32-O
21SEER2
8.5HSPF2
1 record View configuration
WillisFLEXX High-efficiency Series
Air-source heat pumpFLEX24/36KUH
16SEER2
9HSPF2
1 record View configuration
WillisFLEXX R32
Air-source heat pumpFLEX24KUHR32
18SEER2
10HSPF2
1 record View configuration
WillisMultiple source series
Air-source heat pumpFLEX36KUHR32
16–18SEER2
8.5–10HSPF2
4 records View configuration
WillisFLEXX High-efficiency Series
Air-source heat pumpFLEX48/60KUH
16SEER2
9HSPF2
1 record View configuration
WillisFLEXX R32
Air-source heat pumpFLEX48KUHR32
19SEER2
10HSPF2
1 record View configuration
WillisMultiple source series
Air-source heat pumpFLEX60KUHR32
16–19SEER2
9–10.5HSPF2
4 records View configuration
WillisMultiHeat
21SEER2
10HSPF2
1 record Check rating scope
WillisMULTI HEAT
18–21SEER2
8.1–10HSPF2
3 records Check rating scope
WillisMultiHeat
21SEER2
10HSPF2
1 record Check rating scope
WillisMULTI HEAT
18–21SEER2
8.1–10HSPF2
3 records Check rating scope
WillisMultiHeat
21SEER2
10HSPF2
1 record Check rating scope
WillisMULTI HEAT
18–21SEER2
8.1–10HSPF2
3 records Check rating scope
WillisMultiHeat
21SEER2
10HSPF2
1 record Check rating scope
WillisMULTI HEAT
18–21SEER2
8.1–10HSPF2
3 records Check rating scope
WillisMultiHeat
21SEER2
10HSPF2
1 record Check rating scope
WillisMULTI HEAT
18–21SEER2
8.1–10HSPF2
3 records Check rating scope
WillisUltra Heat Rooftop Series
Air-source heat pumpPRT60KUH
17SEER2
8.3HSPF2
1 record View configuration
WillisMultiple source series
Air-source heat pumpPUHW09KR32-O
22–26SEER2
9.2–10.4HSPF2
6 records View configuration
WillisHeatfinity
Air-source heat pumpPUHW12KCH24S2-O
24SEER2
9HSPF2
1 record View configuration
WillisMultiple source series
Air-source heat pumpPUHW12KR32-O
21–24.5SEER2
9–9.5HSPF2
6 records View configuration
WillisHeatfinity
Air-source heat pumpPUHW18KCH23S2-O
23SEER2
8.5HSPF2
1 record View configuration