Grandaire / AIR-SOURCE HEAT PUMP

W5H8T24*K*AAA*

2-STAGE 18 SEER HP · source records, page 4

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*37M17XA*+ furnace: WFST060B048A*AHRI reference: 21719156217.008.10111002.08EPA 4011052
W5A*24M14XA*+ furnace: WFET045A036A*AHRI reference: 21564340116.508.10109002.06EPA 3957000
W5A*24M14XA*+ furnace: WFET070A036A*AHRI reference: 21564341916.508.10109002.06EPA 3957007
W5A*24M17XA*+ furnace: WFET045A036A*AHRI reference: 21564382616.508.10110002.04EPA 3957409
W5A*24M17XA*+ furnace: WFSU040B036B*AHRI reference: 21564407316.507.80111002.02EPA 3957565
W5A*24M17XA*+ furnace: WFSU060B048B*AHRI reference: 21564410016.507.80110002.04EPA 3957584
W5A*24M17XA*+ furnace: WFST060B048A*AHRI reference: 21564426616.508.10110002.04EPA 3957697
W5A*24M17XA*+ furnace: WFST080B048A*AHRI reference: 21564429516.508.10110002.04EPA 3957722
W5A*25M17XA*+ furnace: WFST040A030A*AHRI reference: 21564498616.508.10113002.06EPA 3958200
W5A*30M17XA*+ furnace: WFST060B048A*AHRI reference: 21564607616.508.10110002.06EPA 3958636
W5A*30M17XA*+ furnace: WFSU040B036B*AHRI reference: 21564587516.508.00111002.05EPA 3958862
W5A*36M17XA*+ furnace: WFSU040B036B*AHRI reference: 21564666816.508.00110002.05EPA 3959419
W5SH30M12XA*+ furnace: WFET090B048A*AHRI reference: 21565078316.507.80110002.08EPA 3962936
W5SH30M12XA*+ furnace: WFET110C066A*AHRI reference: 21565083216.508.00111002.06EPA 3962972
W5SH30M12XA*+ furnace: WFEU040B036B*AHRI reference: 21565045616.508.00110002.08EPA 3963113
W5SH30M12XA*+ furnace: WFEU060B048B*AHRI reference: 21565048316.507.80111002.08EPA 3963129
W5SH30M12XA*+ furnace: WFET045A036A*AHRI reference: 21565073116.507.80111002.08EPA 3963185
W5SH30M12XA*+ furnace: WFET070A036A*AHRI reference: 21565074616.508.00111002.08EPA 3963198
W5SH30M12XA*+ furnace: WFEU080C060B*AHRI reference: 21565051016.507.80110002.08EPA 3963218
W5SH30M12XA*+ furnace: WFSU060B048B*AHRI reference: 21565124116.507.80110002.08EPA 3963670

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 →