MARATHERM / AIR-SOURCE HEAT PUMP

N5H8T24*K*AAA*

2-STAGE 18 SEER HP · source records, page 5

266 published source records · source checked Sep 21, 2026

SEER2 range15.2–18.5BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity22,200–25,000BTU/h

Each efficiency range summarizes published EPA records for N5H8T24*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 266 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/Wh15.2–18.5266 / 266
EER2 · BTU/Wh11.5–14266 / 266
HSPF2 · BTU/Wh7.8–8.5266 / 266
Cooling capacity · BTU/h22,200–25,000266 / 266
Heating capacity at 47°F / 8.3°C · BTU/h24,200–25,400266 / 266
Heating capacity at 17°F / −8.3°C · BTU/h14,200–15,000266 / 266
Heating capacity at 5°F / −15°C · BTU/h10,700–11,500266 / 266
COP at 5°F / −15°C1.94–2.24266 / 266
Equipment / loop typeHP - Split System266 / 266
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)266 / 266
Compressor stagingTwo-stage266 / 266
Connected capabilityNo266 / 266

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
EA*5X37M21A*+ furnace: *97CTN0601716A*AHRI reference: 21572084517.508.00112002.08EPA 3981415
EA*5X37M21A*+ furnace: *97CTN0801716A*AHRI reference: 21572085917.508.00112002.10EPA 3981544
EA*5X37M21A*+ furnace: *97CTN0802120A*AHRI reference: 21572087317.508.00112002.10EPA 3981551
EA*5X37M21A*+ furnace: *97CTN1002122A*AHRI reference: 21572088717.508.00111002.10EPA 3981567
FTMA5X24L0B*AHRI reference: 21556067417.508.10111002.06EPA 3982772
EVD5X38M17A*+ furnace: *97CMN0601714B*AHRI reference: 21561878617.508.00112002.10EPA 3996867
QFVA5D2417X*AHRI reference: 21869536717.507.80112002.02EPA 4683463
EA*5X24M17A*+ furnace: *80CSU0401712A*AHRI reference: 21564358817.007.80111002.04EPA 3957191
EA*5X24M17A*+ furnace: *80MSU0401712A*AHRI reference: 21564368717.007.80110002.06EPA 3957307
EA*5X24M17A*+ furnace: *80MSU0601716A*AHRI reference: 21564371317.007.80109002.06EPA 3957320
EA*5X24M17A*+ furnace: *80CTL0701412B*AHRI reference: 21564376017.008.10110002.04EPA 3957356
EA*5X25M17A*+ furnace: *80CTL0451712B*AHRI reference: 21564453217.008.10111002.08EPA 3957879
EA*5X25M17A*+ furnace: *95MSU0401712A*AHRI reference: 21564486117.008.10112002.08EPA 3958112
EA*5X25M17A*+ furnace: OLV098A12*AHRI reference: 21564511317.008.10111002.08EPA 3958273
EA*5X30M14A*+ furnace: *80CTL0701412B*AHRI reference: 21564521817.008.10108002.06EPA 3958336
EA*5X30M17A*+ furnace: *80CSU0401712A*AHRI reference: 21564539717.007.80110002.06EPA 3958438
EA*5X30M17A*+ furnace: *80MSU0401712A*AHRI reference: 21564550317.007.80108002.06EPA 3958511
EA*5X30M17A*+ furnace: *80CTL0701412B*AHRI reference: 21564557517.008.10109002.06EPA 3958661
EA*5X30M17A*+ furnace: *80CTL0701716B*AHRI reference: 21564559617.008.10109002.06EPA 3958669
EA*5X30M17A*+ furnace: *80CTL0901716B*AHRI reference: 21564561617.008.10109002.06EPA 3958688

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 →