MAINLINE / AIR-SOURCE HEAT PUMP

ML18HP230LMNTH-O

ML Series

18 published source records · source checked Sep 21, 2026

SEER2 range16.1–19.3BTU/Wh
HSPF2 range9.5–10.8BTU/Wh
Cooling capacity18,000BTU/h

Each efficiency range summarizes published EPA records for ML18HP230LMNTH-O. 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 18 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/Wh16.1–19.318 / 18
EER2 · BTU/Wh11.7–12.518 / 18
HSPF2 · BTU/Wh9.5–10.818 / 18
Cooling capacity · BTU/h18,00018 / 18
Heating capacity at 47°F / 8.3°C · BTU/h18,000–19,00018 / 18
Heating capacity at 17°F / −8.3°C · BTU/h14,700–15,30018 / 18
Heating capacity at 5°F / −15°C · BTU/h18,000–19,60018 / 18
COP at 5°F / −15°C1.8–2.1218 / 18
Equipment / loop typeHP - Split System18 / 18
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)18 / 18
Compressor stagingContinuously variable18 / 18
Connected capabilityNo18 / 18

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
ML18HP230WMAHU-I*Cold climate designationAHRI reference: 21760719619.3010.80196002.10EPA 4479805
ML18HP230WMAHU-ICold climate designationAHRI reference: 21662341219.3010.80196002.10EPA 4690963
ML18HP230LMNTAHU-I*Cold climate designationAHRI reference: 21760717319.009.70180002.00EPA 4479765
ML18HP230G3AHU-I*Cold climate designationAHRI reference: 21760718219.0010.10186002.12EPA 4479767
ML24HP230G3AHU-I*Cold climate designationAHRI reference: 21760718919.0010.10186002.12EPA 4479769
ML24HP230LMNTAHU-I*Cold climate designationAHRI reference: 21760722119.009.70180002.00EPA 4479779
ML18HP230LMNTAHU-ICold climate designationAHRI reference: 21586431019.009.70180002.00EPA 4690922
ML24HP230LMNTAHU-ICold climate designationAHRI reference: 21662344119.009.70180002.00EPA 4690939
ML24HP230G3AHU-ICold climate designationAHRI reference: 21662340519.0010.10186002.12EPA 4690968
ML18HP230G3AHU-ICold climate designationAHRI reference: 21662339819.0010.10186002.12EPA 4690975
ML18HP230PCAHU-I*Cold climate designationAHRI reference: 21760720216.8010.50190001.80EPA 4479775
ML18HP230PCAHU-ICold climate designationAHRI reference: 21662341916.8010.50190001.80EPA 4690957
ML24HP230CC14-I*Cold climate designationAHRI reference: 21760720816.109.50180002.06EPA 4479777
ML24HP230CC17-I*Cold climate designationAHRI reference: 21760721016.109.50180002.06EPA 4479778
ML24HP230CC17-ICold climate designationAHRI reference: 21662342916.109.50180002.06EPA 4690949
ML24HP230CC14-ICold climate designationAHRI reference: 21662342716.109.50180002.06EPA 4690951
ML24HP230UC14-ICold climate designationAHRI reference: 21790270716.109.50180002.06EPA 4691529
ML24HP230UC17-ICold climate designationAHRI reference: 21790270916.109.50180002.06EPA 4691531

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 →