MARATHERM / AIR-SOURCE HEAT PUMP

N5H8T36*K*AAA*

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

145 published source records · source checked Sep 21, 2026

SEER2 range15.2–17BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity33,800–38,000BTU/h

Each efficiency range summarizes published EPA records for N5H8T36*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 145 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/Wh15.2–17145 / 145
EER2 · BTU/Wh11.7–13145 / 145
HSPF2 · BTU/Wh7.8–8.5145 / 145
Cooling capacity · BTU/h33,800–38,000145 / 145
Heating capacity at 47°F / 8.3°C · BTU/h37,200–39,000145 / 145
Heating capacity at 17°F / −8.3°C · BTU/h23,000–24,200145 / 145
Heating capacity at 5°F / −15°C · BTU/h17,500–19,600145 / 145
COP at 5°F / −15°C1.78–2.48145 / 145
Equipment / loop typeHP - Split System145 / 145
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)145 / 145
Compressor stagingTwo-stage145 / 145
Connected capabilityNo145 / 145

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*5X48M21A*+ furnace: *97CMN1002122B*AHRI reference: 21563932915.508.10191002.26EPA 3956344
EA*5X48M21A*+ furnace: *96CTN1002122B*AHRI reference: 21563962715.508.10191002.26EPA 3956403
EA*5X48M21A*+ furnace: *95MSU1002120A*AHRI reference: 21563951815.508.10191002.26EPA 3956476
EA*5X48M21A*+ furnace: *95MSU1002122A*AHRI reference: 21563954315.508.10190002.26EPA 3956490
ESH5X42M12A*+ furnace: *80MSU0802120A*AHRI reference: 21564103115.508.10190002.26EPA 3956734
EA*5X37M21A*+ furnace: *97CTN1002122A*AHRI reference: 21572138215.508.00193002.24EPA 3982107
EA*5X43M21A*+ furnace: *97CTN0802120A*AHRI reference: 21572154315.508.00193002.26EPA 3982150
EA*5X43M21A*+ furnace: *97CTN1002122A*AHRI reference: 21572155715.508.00193002.24EPA 3982171
EA*5X48M21A*+ furnace: *97CTN1002122A*AHRI reference: 21572158915.508.00191002.26EPA 3982194
F5MA5*36L*B*AHRI reference: 21646428215.208.10188002.28EPA 3847195
EVD5X38M17A*+ furnace: *80CSU0601716A*AHRI reference: 21562128015.207.80178001.80EPA 3946486
EA*5X37M17A*+ furnace: *95CSU0601716B*AHRI reference: 21563536815.208.10189002.26EPA 3954315
EA*5X37M17A*+ furnace: *95MSU0601716A*AHRI reference: 21563547115.208.10189002.26EPA 3954356
EA*5X36M17A*+ furnace: *80MSU0601716A*AHRI reference: 21563484015.207.80186002.26EPA 3954403
EA*5X37M17A*+ furnace: *80CSU0601716A*AHRI reference: 21563515415.208.10192002.22EPA 3954431
EA*5X37M21A*+ furnace: *80CSU0401712A*AHRI reference: 21563561315.208.10196002.22EPA 3954485
EA*5X37M21A*+ furnace: *80CSU0802120A*AHRI reference: 21563564115.208.10195002.24EPA 3954496
EA*5X37M21A*+ furnace: *80CTL0701716B*AHRI reference: 21563578915.208.10195002.24EPA 3954679
EA*5X37M17A*+ furnace: *80CTL0701412B*AHRI reference: 21563527215.208.10190002.26EPA 3954835
EA*5X37M17A*+ furnace: *80CTL0701716B*AHRI reference: 21563528615.208.10190002.26EPA 3954849

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 →