Lennox / AIR-SOURCE HEAT PUMP

EL21KLV-036-230A**

Elite EL21KLV SERIES · source records, page 10

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
CK40HT-30A-**+TDR+ furnace: ML180UH045V36A*Cold climate designationAHRI reference: 21744328717.508.50242001.96EPA 4044681
CK40HT-30A-**+TDR+ furnace: ML180UH070E36A*Cold climate designationAHRI reference: 21744328917.508.80240001.94EPA 4044684
CK40HT-30A-**+TDR+ furnace: ML180UH070XE36A*Cold climate designationAHRI reference: 21744329217.508.80240001.96EPA 4044687
CK40HT-30B-**+TDR+ furnace: ML180UH090V48B*Cold climate designationAHRI reference: 21744329617.509.00226002.44EPA 4044691
CK40HT-30B-**+TDR+ furnace: ML193UH030XE36B*Cold climate designationAHRI reference: 21744329917.509.00226002.40EPA 4044694
CK40HT-30B-**+TDR+ furnace: ML193UH045XE36B*Cold climate designationAHRI reference: 21744330117.509.00224002.42EPA 4044695
CK40HT-42C-**+TDR+ furnace: ML180UH110V60C*Cold climate designationAHRI reference: 21744331917.509.40224001.94EPA 4044714
CK40HT-42C-**+TDR+ furnace: SL280UH110V60C*Cold climate designationAHRI reference: 21744333717.509.60226001.94EPA 4044731
CK40HT-42C-**+TDR+ furnace: SL280UH100NV60C*Cold climate designationAHRI reference: 21744333617.509.60226001.94EPA 4044732
CK40HT-42C-**+TDR+ furnace: SL280UH110XV60C*Cold climate designationAHRI reference: 21744333817.509.60226001.94EPA 4044733
CK40HT-42C-**+TDR+ furnace: SL297UH080NV60C*Cold climate designationAHRI reference: 21744334017.509.60228001.92EPA 4044736
CK40HT-42C-**+TDR+ furnace: SLP99UH090XV60C*Cold climate designationAHRI reference: 21744334417.509.60226001.94EPA 4044740
CK40HT-36C-**+TDR+ furnace: SL297UH080NV48C*AHRI reference: 21744335617.509.60216002.04EPA 4044749
CK40HT-36C-**+TDR+ furnace: SLP99UH090XV36C*AHRI reference: 21744335817.509.60216002.04EPA 4044752
CK40HT-42C-**+TDR+ furnace: EL297UH090XV60C*Cold climate designationAHRI reference: 21744335917.509.60226001.94EPA 4044754
CK40HT-42C-**+TDR+ furnace: EL297UH110XV60C*Cold climate designationAHRI reference: 21744336317.509.60226001.94EPA 4044758
CK40HT-36C-**+TDR+ furnace: EL297UH090XV36C*AHRI reference: 21744336617.509.60216002.04EPA 4044762
CK40[C,U]T-36C-**+TDR+ furnace: ML193UH090XE48C*Cold climate designationAHRI reference: 21807387517.509.00220002.08EPA 4573399
CK40[C,U]T-36C-**+TDR+ furnace: ML193UH110XE48C*Cold climate designationAHRI reference: 21807387117.508.50216002.08EPA 4573401
CK40[C,U]T-36C-**+TDR+ furnace: EL297UH090XE48C*Cold climate designationAHRI reference: 21807375217.508.50216002.08EPA 4577711

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 →