MARATHERM / AIR-SOURCE HEAT PUMP

N5H8T24*K*AAA*

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

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: *80CTL0702120B*AHRI reference: 21564800217.508.10111002.10EPA 3961049
EA*5X37M21A*+ furnace: *96CTN1002122B*AHRI reference: 21564861117.508.10111002.10EPA 3961079
EA*5X37M21A*+ furnace: *95CSU0601716B*AHRI reference: 21564816817.508.10111002.10EPA 3961291
EA*5X37M21A*+ furnace: *95CSU0802120B*AHRI reference: 21564818917.508.10112002.10EPA 3961299
EA*5X37M21A*+ furnace: *95CSU1002122B*AHRI reference: 21564820917.508.10111002.10EPA 3961316
EA*5X37M21A*+ furnace: *97CMN0601714B*AHRI reference: 21564823017.508.10112002.10EPA 3961328
EA*5X37M21A*+ furnace: *97CMN0602120B*AHRI reference: 21564825117.508.50112002.10EPA 3961347
EA*5X37M21A*+ furnace: *97CMN0801714B*AHRI reference: 21564827117.508.10112002.08EPA 3961360
EA*5X37M21A*+ furnace: *97CMN0802120B*AHRI reference: 21564829117.508.10111002.10EPA 3961369
EA*5X37M21A*+ furnace: *97CMN1002122B*AHRI reference: 21564831117.508.10111002.10EPA 3961385
EA*5X37M21A*+ furnace: *95MSU0401712A*AHRI reference: 21564843517.508.10112002.08EPA 3961468
EA*5X37M21A*+ furnace: *95MSU0601716A*AHRI reference: 21564846017.508.10111002.10EPA 3961481
EA*5X37M21A*+ furnace: *95MSU0802120A*AHRI reference: 21564848417.508.10111002.10EPA 3961499
EA*5X37M21A*+ furnace: *96CTN0601714B*AHRI reference: 21564854917.508.10112002.10EPA 3961657
EA*5X37M21A*+ furnace: OMV098J12*AHRI reference: 21564879617.508.10115002.06EPA 3961759
EA*5X37M21A*+ furnace: OMV112K14AAHRI reference: 21564881717.508.10115002.18EPA 3961780
EA*5X25M17A*+ furnace: *80CSU0601716B*AHRI reference: 21572043517.508.00110002.10EPA 3980256
EA*5X25M17A*+ furnace: *97CTN0801716A*AHRI reference: 21572046317.508.00111002.08EPA 3980382
EA*5X37M17A*+ furnace: *97CTN0801716A*AHRI reference: 21572073917.508.00111002.08EPA 3981309
EA*5X37M21A*+ furnace: *80CSU0802120B*AHRI reference: 21572081717.508.00110002.12EPA 3981384

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 →