NS21H24MA5-**A
NS21H SERIES · NS21H Series
91 published source records · source checked Sep 21, 2026
Each efficiency range summarizes published EPA records for NS21H24MA5-**A. 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.
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Heating performance & equipment details
Ranges include the 91 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 field | Value / range | Records supplying it |
|---|---|---|
| SEER2 · BTU/Wh | 15.2–20.5 | 91 / 91 |
| EER2 · BTU/Wh | 11.2–13.4 | 91 / 91 |
| HSPF2 · BTU/Wh | 8.2–10.2 | 91 / 91 |
| Cooling capacity · BTU/h | 21,600–24,000 | 91 / 91 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 24,000–27,400 | 91 / 91 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 18,800–22,400 | 91 / 91 |
| Heating capacity at 5°F / −15°C · BTU/h | 13,900–18,600 | 91 / 91 |
| COP at 5°F / −15°C | 1.7–2.3 | 91 / 91 |
| Equipment / loop type | HP - Split System | 91 / 91 |
| Refrigerant / source-reported GWP | R-454B (GWP:470 | Lower GWP) | 91 / 91 |
| Compressor staging | Continuously variable | 91 / 91 |
| Connected capability | No | 91 / 91 |
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 furnace | SEER2BTU/Wh | HSPF2BTU/Wh | Heating capacity at 5°F / −15°CBTU/h | COP at 5°F / −15°C | Record & comparison |
|---|---|---|---|---|---|
NAM24V2TA5*-**Cold climate designationAHRI reference: 217642426 | 20.50 | 10.00 | 18600 | 2.30 | EPA 4481584 → |
NCHC30AT5*-**+TDR+ furnace: NF80U045T3A*AHRI reference: 217642627 | 20.50 | 9.00 | 16700 | 2.04 | EPA 4481715 → |
NAM30V1TA5*-**Cold climate designationAHRI reference: 217642558 | 20.50 | 8.50 | 17800 | 2.16 | EPA 4481752 → |
NCU[C,U]30BT5*-**+TDR+ furnace: NF97X040V3B*Cold climate designationAHRI reference: 217642429 | 20.00 | 10.00 | 17700 | 2.12 | EPA 4481587 → |
NCU[C,U]30AT5*-**+TDR+ furnace: NF80X040S3A*Cold climate designationAHRI reference: 217642507 | 20.00 | 9.80 | 17600 | 2.10 | EPA 4481656 → |
NAM24V1TA5*-**AHRI reference: 217642601 | 20.00 | 9.80 | 17300 | 2.10 | EPA 4481690 → |
NCDC36BT5*-**+TDR+ furnace: NF97D070M3B*AHRI reference: 217642606 | 20.00 | 8.50 | 16300 | 2.00 | EPA 4481695 → |
NCHC30BT5*-**+TDR+ furnace: NF97X040V3B*Cold climate designationAHRI reference: 217642619 | 20.00 | 9.40 | 17100 | 2.06 | EPA 4481707 → |
NCHC30BT5*-**+TDR+ furnace: NF97X060V3B*Cold climate designationAHRI reference: 217642620 | 20.00 | 9.40 | 17100 | 2.06 | EPA 4481708 → |
NCHC30BT5*-**+TDR+ furnace: NF98U070M3B*Cold climate designationAHRI reference: 217642621 | 20.00 | 9.40 | 17000 | 2.06 | EPA 4481709 → |
NCHC24AT5*-**+TDR+ furnace: NF80X040S3A*Cold climate designationAHRI reference: 217642622 | 20.00 | 8.50 | 17500 | 1.96 | EPA 4481710 → |
NCHC24AT5*-**+TDR+ furnace: NF80X060S3A*Cold climate designationAHRI reference: 217642623 | 20.00 | 8.50 | 17500 | 1.96 | EPA 4481711 → |
NCHC24AT5*-**+TDR+ furnace: NF80U070T3A*Cold climate designationAHRI reference: 217642624 | 20.00 | 8.50 | 17600 | 1.98 | EPA 4481712 → |
NCHC30AT5*-**+TDR+ furnace: NF80X060V3A*AHRI reference: 217642631 | 20.00 | 9.00 | 17100 | 2.06 | EPA 4481719 → |
NCU[C,U]30AT5*-**+TDR+ furnace: NF80X060S3A*Cold climate designationAHRI reference: 217642508 | 20.00 | 9.80 | 17600 | 2.10 | EPA 4481813 → |
NCU[C,U]30AT5*-**+TDR+ furnace: NF80X060V3A*Cold climate designationAHRI reference: 217642427 | 19.50 | 10.00 | 17600 | 2.12 | EPA 4481585 → |
NCU[C,U]30BT5*-**+TDR+ furnace: NF97X060V3B*Cold climate designationAHRI reference: 217642430 | 19.50 | 9.80 | 17700 | 2.10 | EPA 4481588 → |
NCU[C,U]30AT5*-**+TDR+ furnace: NF80U045T3A*Cold climate designationAHRI reference: 217642511 | 19.50 | 9.80 | 17300 | 2.10 | EPA 4481659 → |
NCU[C,U]30AT5*-**+TDR+ furnace: NF80U070T3A*Cold climate designationAHRI reference: 217642512 | 19.50 | 9.80 | 17700 | 2.10 | EPA 4481660 → |
NCU[C,U]30BT5*-**+TDR+ furnace: NF97U045V3B*Cold climate designationAHRI reference: 217642520 | 19.50 | 9.50 | 17400 | 2.10 | EPA 4481667 → |
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 →