Lennox / AIR-SOURCE HEAT PUMP

EL21KLV-036-230A**

Elite EL21KLV SERIES · source records, page 11

294 published source records · source checked Sep 21, 2026

SEER2 range15.2–20BTU/Wh
HSPF2 range8.5–10.4BTU/Wh
Cooling capacity32,000–34,800BTU/h

Each efficiency range summarizes published EPA records for EL21KLV-036-230A**. 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 294 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/Wh15.2–20294 / 294
EER2 · BTU/Wh11–12.2294 / 294
HSPF2 · BTU/Wh8.5–10.4294 / 294
Cooling capacity · BTU/h32,000–34,800294 / 294
Heating capacity at 47°F / 8.3°C · BTU/h30,000–35,400294 / 294
Heating capacity at 17°F / −8.3°C · BTU/h26,600–32,400294 / 294
Heating capacity at 5°F / −15°C · BTU/h18,400–25,400294 / 294
COP at 5°F / −15°C1.84–2.48294 / 294
Equipment / loop typeHP - Split System294 / 294
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)294 / 294
Compressor stagingContinuously variable294 / 294
Connected capabilityNo294 / 294

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
CK40[C,U]T-36C-**+TDR+ furnace: EL280UH110E48C*Cold climate designationAHRI reference: 21807375017.509.00214002.08EPA 4577712
CK40[C,U]T-36C-**+TDR+ furnace: SL297UH080NV60C*Cold climate designationAHRI reference: 21807388317.508.50214002.04EPA 4577739
CK40[C,U]T-36C-**+TDR+ furnace: SLP99UH090XV60C*Cold climate designationAHRI reference: 21807387817.508.50214002.06EPA 4577744
CK40HT-42C-**+TDR+ furnace: ML297UH110XV60C*Cold climate designationAHRI reference: 21873260017.509.00226001.86EPA 4705630
CK40HT-42C-**+TDR+ furnace: ML197UH030XE36B*Cold climate designationAHRI reference: 21874511617.509.40228001.84EPA 4705660
CK40[C,U]T-36C-**+TDR+ furnace: ML197UH030XE36B*Cold climate designationAHRI reference: 21874511417.508.50224002.00EPA 4705662
CK40[C,U]T-36B-**+TDR+ furnace: ML197UH030XE36B*Cold climate designationAHRI reference: 21874505617.508.50224002.00EPA 4705672
CK40HT-42C-**+TDR+ furnace: ML197UH060XE36B*Cold climate designationAHRI reference: 21874772317.509.50226001.86EPA 4705682
CK40[C,U]T-36B-**+TDR+ furnace: EL280UH090XE48B*Cold climate designationAHRI reference: 21712157017.008.50216002.08EPA 4006448
CK40[C,U]T-36B-**+TDR+ furnace: EL280UH090E48B*Cold climate designationAHRI reference: 21712156917.008.50216002.08EPA 4006449
CK40[C,U]T-36A-**+TDR+ furnace: ML180UH070E36A*Cold climate designationAHRI reference: 21712159517.008.50220002.04EPA 4006552
CK40[C,U]T-30B-**+TDR+ furnace: EL196UH030XE36B*AHRI reference: 21744322117.0010.20226002.24EPA 4044617
CK40[C,U]T-30B-**+TDR+ furnace: EL280UH090E48B*AHRI reference: 21744322417.0010.40224002.28EPA 4044620
CK40[C,U]T-30B-**+TDR+ furnace: EL280UH090XE48B*AHRI reference: 21744322517.0010.40224002.28EPA 4044621
CK40[C,U]T-30B-**+TDR+ furnace: ML180UH090XE48B*AHRI reference: 21744323217.0010.40224002.28EPA 4044627
CK40[C,U]T-30B-**+TDR+ furnace: ML180UH090E48B*AHRI reference: 21744323017.0010.40224002.28EPA 4044628
CK40[C,U]T-30B-**+TDR+ furnace: ML296UH045XV36B*AHRI reference: 21744323917.0010.00226002.26EPA 4044635
CK40DT-30/36B-**+TDR+ furnace: ML296DF070XV48B*AHRI reference: 21744325217.008.50195002.26EPA 4044648
CK40DT-30/36B-**+TDR+ furnace: EL280DF090E48B*AHRI reference: 21744325417.009.00192002.34EPA 4044649
CK40HT-30B-**+TDR+ furnace: EL196UH030XE36B*Cold climate designationAHRI reference: 21744326617.009.00226002.40EPA 4044662

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 →