MARATHERM / AIR-SOURCE HEAT PUMP

N5H8T48*K*AAA*

2-STAGE 18 SEER HP · source records, page 8

243 published source records · source checked Sep 21, 2026

SEER2 range15.2–18BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity45,500–50,500BTU/h

Each efficiency range summarizes published EPA records for N5H8T48*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 243 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/Wh15.2–18243 / 243
EER2 · BTU/Wh11.7–13.5243 / 243
HSPF2 · BTU/Wh7.8–8.5243 / 243
Cooling capacity · BTU/h45,500–50,500243 / 243
Heating capacity at 47°F / 8.3°C · BTU/h48,500–52,500243 / 243
Heating capacity at 17°F / −8.3°C · BTU/h30,000–32,600243 / 243
Heating capacity at 5°F / −15°C · BTU/h23,800–26,600243 / 243
COP at 5°F / −15°C2.06–2.32243 / 243
Equipment / loop typeHP - Split System243 / 243
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)243 / 243
Compressor stagingTwo-stage243 / 243
Connected capabilityNo243 / 243

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
EVM5X48M21A*+ furnace: *96CTN1002122B*AHRI reference: 21562321216.008.10246002.12EPA 3947555
EVD5X48M21A*+ furnace: *95CSU0802120B*AHRI reference: 21562423116.008.00246002.10EPA 3948195
EVD5X48M21A*+ furnace: *97CMN0802120B*AHRI reference: 21562427316.008.10244002.10EPA 3948227
EVD5X48M21A*+ furnace: *96CTN0802120B*AHRI reference: 21562436016.008.10244002.10EPA 3948454
EVD5X49M24A*+ furnace: *96CTN0802120B*AHRI reference: 21562465116.008.10256002.08EPA 3948964
EVD5X60M24A*+TDRAHRI reference: 21562868816.008.00240002.15EPA 3950460
EVD5X48M21A*+TDRAHRI reference: 21562861216.008.00238002.15EPA 3950566
EVD5X48M24A*+TDRAHRI reference: 21562863116.008.00238002.15EPA 3950596
EVD5X49M24A*+TDRAHRI reference: 21562865016.008.00240002.15EPA 3950617
EVM5X60M24A*+TDRAHRI reference: 21562857416.008.00240002.15EPA 3950811
EA*5X48M21A*+ furnace: *80MSU0601716A*AHRI reference: 21563128516.008.10250002.22EPA 3952156
EA*5X48M21A*+ furnace: *80MSU0802120A*AHRI reference: 21563130416.008.10248002.24EPA 3952175
EA*5X48M21A*+ furnace: *80MSU1002120A*AHRI reference: 21563132316.008.10250002.22EPA 3952191
EA*5X60M24A*+ furnace: *80MSU1002120A*AHRI reference: 21563188616.008.10260002.18EPA 3952241
EA*5X60M24A*+ furnace: *80CTL0902120B*AHRI reference: 21563191616.008.10256002.20EPA 3952258
EA*5X60M24A*+ furnace: *80CTL1102120B*AHRI reference: 21563193016.008.10260002.18EPA 3952271
EA*5X60M24A*+ furnace: *80CTL1352422B*AHRI reference: 21563194416.008.10260002.18EPA 3952284
EA*5X48M21A*+ furnace: *80CTL0902120B*AHRI reference: 21563138116.008.10250002.22EPA 3952298
EA*5X48M21A*+ furnace: *80CTL1102120B*AHRI reference: 21563139516.008.10252002.22EPA 3952309
EA*5X48M21A*+ furnace: *95CSU1002122B*AHRI reference: 21563148716.008.10250002.22EPA 3952371

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 →