Grandaire / AIR-SOURCE HEAT PUMP

W5H8T24*K*AAA*

2-STAGE 18 SEER HP · source records, page 3

124 published source records · source checked Sep 21, 2026

SEER2 range15.2–18.5BTU/Wh
HSPF2 range7.8–8.1BTU/Wh
Cooling capacity22,200–25,000BTU/h

Each efficiency range summarizes published EPA records for W5H8T24*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 124 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/Wh15.2–18.5124 / 124
EER2 · BTU/Wh11.5–14124 / 124
HSPF2 · BTU/Wh7.8–8.1124 / 124
Cooling capacity · BTU/h22,200–25,000124 / 124
Heating capacity at 47°F / 8.3°C · BTU/h24,000–25,000124 / 124
Heating capacity at 17°F / −8.3°C · BTU/h14,100–14,900124 / 124
Heating capacity at 5°F / −15°C · BTU/h10,700–11,400124 / 124
COP at 5°F / −15°C1.9–2.16124 / 124
Equipment / loop typeHP - Split System124 / 124
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)124 / 124
Compressor stagingTwo-stage124 / 124
Connected capabilityNo124 / 124

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
W5A*30M17XA*+ furnace: WFEU040B036B*AHRI reference: 21564550617.007.80108002.06EPA 3958545
W5A*30M17XA*+ furnace: WFET045A036A*AHRI reference: 21564564117.008.10109002.06EPA 3958699
W5A*30M17XA*+ furnace: WFET070A036A*AHRI reference: 21564565417.008.10109002.06EPA 3958711
W5A*30M17XA*+ furnace: WFET090B048A*AHRI reference: 21564569117.008.10110002.04EPA 3958745
W5A*30M17XA*+ furnace: WFST080B048A*AHRI reference: 21564610417.008.10110002.06EPA 3958871
W5A*30M17XA*+ furnace: WFSU060B048B*AHRI reference: 21564590417.007.80110002.04EPA 3958945
W5A*36M17XA*+ furnace: WFET090B048A*AHRI reference: 21564648317.008.10109002.08EPA 3959205
W5A*36M17XA*+ furnace: WFSU060B048B*AHRI reference: 21564669517.007.80109002.06EPA 3959444
W5A*36M17XA*+ furnace: WFST060B048A*AHRI reference: 21564685917.008.10110002.06EPA 3959621
W5A*36M17XA*+ furnace: WFST080B048A*AHRI reference: 21564688817.008.10109002.06EPA 3959641
W5SH36M12XA*+ furnace: WFET110C066A*AHRI reference: 21565231417.007.80111002.08EPA 3964179
W5SH36M12XA*+ furnace: WFEU080C060B*AHRI reference: 21565198817.007.80110002.10EPA 3964756
W5SH36M12XA*+ furnace: WFSU100C060B*AHRI reference: 21565277717.007.80110002.08EPA 3965068
W5A*30M17XA*+ furnace: WFJT080B048A*AHRI reference: 21572059117.008.00110002.06EPA 3980962
W5A*36M17XA*+ furnace: WFJT060B048A*AHRI reference: 21572066517.008.00110002.06EPA 3981164
W5A*36M17XA*+ furnace: WFJT080B048A*AHRI reference: 21572068317.008.00109002.06EPA 3981190
W5A*37M17XA*+ furnace: WFJT060B048A*AHRI reference: 21719145617.008.00111002.08EPA 4011020
W5A*37M17XA*+ furnace: WFJT080B048A*AHRI reference: 21719145817.008.00111002.08EPA 4011022
W5A*37M17XA*+ furnace: WFSU040B036B*AHRI reference: 21719155817.007.80111002.08EPA 4011048
W5A*37M17XA*+ furnace: WFSU060B048B*AHRI reference: 21719156017.007.80110002.10EPA 4011050

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 →