Lennox / AIR-SOURCE HEAT PUMP

EL21KLV-036-230A**

Elite EL21KLV SERIES · source records, page 4

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-30B-**+TDR+ furnace: ML180UH070XE36B*AHRI reference: 21744322918.5010.40226002.28EPA 4044625
CK40[C,U]T-30B-**+TDR+ furnace: ML196UH030XE36B*AHRI reference: 21744323618.5010.20228002.24EPA 4044632
CK40[C,U]T-30B-**+TDR+ furnace: SL297UH060NV36B*AHRI reference: 21744324618.5010.40232002.24EPA 4044643
CK40[C,U]T-30B-**+TDR+ furnace: EL297UH070XE36B*AHRI reference: 21744324818.5010.40226002.24EPA 4044644
CK40DT-30/36B-**+TDR+ furnace: SL280DF060NV36B*AHRI reference: 21744326118.509.00197002.24EPA 4044656
CK40HT-30A-**+TDR+ furnace: EL280UH045E36A*Cold climate designationAHRI reference: 21744327618.509.00242001.96EPA 4044670
CK40HT-30B-**+TDR+ furnace: ML180UH070V36B*Cold climate designationAHRI reference: 21744327918.508.80224002.46EPA 4044675
CK40HT-30B-**+TDR+ furnace: ML180UH070V48B*Cold climate designationAHRI reference: 21744328218.509.00226002.48EPA 4044676
CK40DT-30/36C-**+TDR+ furnace: SL280DF090V60C*AHRI reference: 21744329718.509.20193002.34EPA 4044692
CK40DT-30/36C-**+TDR+ furnace: SL280DF110V60C*AHRI reference: 21744330018.509.20193002.34EPA 4044697
CK40HT-30B-**+TDR+ furnace: ML196UH030XE36B*Cold climate designationAHRI reference: 21744330418.509.00228002.42EPA 4044698
CK40DT-30/36C-**+TDR+ furnace: SLP99DF090XV60C*AHRI reference: 21744330818.509.00195002.28EPA 4044703
CK40DT-30/36C-**+TDR+ furnace: SLP99DF110XV60C*AHRI reference: 21744331118.509.20195002.28EPA 4044705
CK40HT-30B-**+TDR+ furnace: SL280UH080NV48B*Cold climate designationAHRI reference: 21744331518.509.00228002.42EPA 4044710
CK40HT-30B-**+TDR+ furnace: SL297UH060NV36B*Cold climate designationAHRI reference: 21744332018.509.00232002.40EPA 4044712
CK40HT-30B-**+TDR+ furnace: EL297UH045XV36B*Cold climate designationAHRI reference: 21744333218.509.00230002.40EPA 4044726
CK40HT-42C-**+TDR+ furnace: SLP99UH090XV36C*Cold climate designationAHRI reference: 21744334118.509.60226001.92EPA 4044735
CK40HT-42C-**+TDR+ furnace: EL297UH090XV36C*Cold climate designationAHRI reference: 21744335418.509.60226001.94EPA 4044750
CK40[C,U]T-36C-**+TDR+ furnace: ML193UH090XE36C*Cold climate designationAHRI reference: 21807387018.508.50218002.06EPA 4573402
CK40[C,U]T-36C-**+TDR+ furnace: EL297UH070XV36B*Cold climate designationAHRI reference: 21807376818.508.50214002.06EPA 4577699

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 →