37MARAQ18AA3
37M Series · 45M Series
9 published source records · source checked Sep 21, 2026
Each efficiency range summarizes published EPA records for 37MARAQ18AA3. 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 9 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 | 18.5–23.9 | 9 / 9 |
| EER2 · BTU/Wh | 12.2–13.3 | 9 / 9 |
| HSPF2 · BTU/Wh | 9.8–13.5 | 9 / 9 |
| Cooling capacity · BTU/h | 16,000–18,000 | 9 / 9 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 17,000–20,000 | 9 / 9 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 13,200–15,000 | 9 / 9 |
| Heating capacity at 5°F / −15°C · BTU/h | 12,800–14,200 | 9 / 9 |
| COP at 5°F / −15°C | 2.05–2.4 | 9 / 9 |
| Equipment / loop type | HP - Mini or Multi Split · HP - Split System | 9 / 9 |
| Refrigerant / source-reported GWP | R-454B (GWP:470 | Lower GWP) | 9 / 9 |
| Compressor staging | Continuously variable | 9 / 9 |
| Connected capability | No | 9 / 9 |
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 |
|---|---|---|---|---|---|
45MBFAQ16XA3Cold climate designationAHRI reference: 215323829 | 23.90 | 13.50 | 13100 | 2.16 | EPA 3555809 → |
45MAHAQ18XA3Cold climate designationAHRI reference: 215323751 | 23.50 | 10.80 | 12800 | 2.10 | EPA 3555731 → |
D5MAHAQ18XA3Cold climate designationAHRI reference: 218139558 | 23.50 | 10.80 | 12800 | 2.10 | EPA 4573097 → |
45MCFAQ18XA3Cold climate designationAHRI reference: 215323830 | 22.40 | 10.40 | 12800 | 2.05 | EPA 3555810 → |
45MCCAQ18XA3Cold climate designationAHRI reference: 215323827 | 22.30 | 12.20 | 13100 | 2.24 | EPA 3555807 → |
45MBCAQ18XA3Cold climate designationAHRI reference: 215323828 | 20.80 | 11.40 | 12800 | 2.20 | EPA 3555808 → |
45MBDAQ18XA3Cold climate designationAHRI reference: 215323831 | 20.00 | 10.60 | 14000 | 2.20 | EPA 3555811 → |
45MBDAQ18XH3Cold climate designationAHRI reference: 215323832 | 20.00 | 11.40 | 14200 | 2.40 | EPA 3555812 → |
45MBAAQ18XB3Cold climate designationAHRI reference: 215318767 | 18.50 | 9.80 | 13000 | 2.30 | EPA 3560909 → |
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 →