Grandaire / AIR-SOURCE HEAT PUMP

W5H8T48*K*AAA*

2-STAGE 18 SEER HP

106 published source records · source checked Sep 21, 2026

SEER2 range15.2–18BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity46,000–50,000BTU/h

Each efficiency range summarizes published EPA records for W5H8T48*K*AAA*. The highest SEER2 and HSPF2 may belong to different combinations. Open a source record below to see its ratings and the scope of its component information.

Model patterns and component strings are preserved exactly. How to read model patterns and combinations →

Heating performance & equipment details

Ranges include the 106 published source records for this model. Values in different rows may describe different configurations. Open an individual record to compare values from the same test configuration.

Reported fieldValue / rangeRecords supplying it
SEER2 · BTU/Wh15.2–18106 / 106
EER2 · BTU/Wh11.7–13.5106 / 106
HSPF2 · BTU/Wh7.8–8.5106 / 106
Cooling capacity · BTU/h46,000–50,000106 / 106
Heating capacity at 47°F / 8.3°C · BTU/h48,500–52,000106 / 106
Heating capacity at 17°F / −8.3°C · BTU/h30,000–32,400106 / 106
Heating capacity at 5°F / −15°C · BTU/h23,800–26,200106 / 106
COP at 5°F / −15°C2.1–2.32106 / 106
Equipment / loop typeHP - Split System106 / 106
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)106 / 106
Compressor stagingTwo-stage106 / 106
Connected capabilityNo106 / 106

47°F = 8.3°C; 17°F = −8.3°C; 5°F = −15°C. COP is dimensionless. These are reported rating points, not a prediction of a particular home’s heat demand or operating limit.

Matched systems

Each row is one source record. The component column distinguishes listed combinations from outdoor-model ratings without an indoor configuration.

Indoor unit / required furnaceSEER2BTU/WhHSPF2BTU/WhHeating capacity at 5°F / −15°CBTU/hCOP at 5°F / −15°CRecord & comparison
WCGL605*D*AHRI reference: 21556072818.008.10246002.32EPA 3982818
QFVA5D6021X*AHRI reference: 21869545418.008.50258002.32EPA 4683373
W5VM49M21XA*+ furnace: WFEU080C060B*AHRI reference: 21562332517.508.10244002.14EPA 3947649
W5VM60M21XA*+ furnace: WFEU080C060B*AHRI reference: 21562372317.508.10244002.14EPA 3948285
W5VC49M24XA*+ furnace: WFEU080C060B*AHRI reference: 21562448117.508.10246002.14EPA 3948722
W5VC61M21XA*+ furnace: WFEU060B048B*AHRI reference: 21562505317.508.10250002.12EPA 3949263
W5VC61M21XA*+ furnace: WFEU080C060B*AHRI reference: 21562507217.508.50244002.30EPA 3949284
W5VC61M21XA*+ furnace: WFEU100C060B*AHRI reference: 21562509117.508.50250002.26EPA 3949302
W5VC61M21XA*+ furnace: WFET110C066A*AHRI reference: 21562516717.508.10246002.14EPA 3949493
W5VC61M24XA*+ furnace: WFET110C066A*AHRI reference: 21562551217.508.50248002.28EPA 3949846
QFVA5D4821X*AHRI reference: 21869543717.508.10254002.18EPA 4683390
W5VM48M21XA*+ furnace: WFEU080C060B*AHRI reference: 21562296817.008.10240002.14EPA 3947373
W5VM49M21XA*+ furnace: WFEU060B048B*AHRI reference: 21562330617.008.10250002.12EPA 3947632
W5VM49M21XA*+ furnace: WFEU100C060B*AHRI reference: 21562334417.008.10248002.10EPA 3947667
W5VM49M21XA*+ furnace: WFET110C066A*AHRI reference: 21562342017.008.10248002.12EPA 3947743
W5VM49M21XA*+ furnace: WFSU100C060B*AHRI reference: 21562355417.008.10252002.10EPA 3947864
W5VC48M21XA*+ furnace: WFEU080C060B*AHRI reference: 21562410817.008.10240002.14EPA 3948103
W5VM60M21XA*+ furnace: WFEU060B048B*AHRI reference: 21562370417.008.10250002.10EPA 3948263
W5VM60M21XA*+ furnace: WFEU100C060B*AHRI reference: 21562374217.008.10248002.10EPA 3948311
W5VM60M21XA*+ furnace: WFET110C066A*AHRI reference: 21562381817.008.10244002.14EPA 3948379

Sources and documentation

The table uses public EPA ENERGY STAR data. AHRI references are reported by EPA and have not been independently checked with AHRI. Source records do not establish availability, installation suitability or rebate eligibility.

No manufacturer manual has been matched to this model.

Collection method, revision history and known limitations →