Lennox / AIR-SOURCE HEAT PUMP

EL21KLV-060-230A**

Elite EL21KLV SERIES

106 published source records · source checked Sep 21, 2026

SEER2 range16–20.5BTU/Wh
HSPF2 range8.2–9BTU/Wh
Cooling capacity52,500–56,000BTU/h

Each efficiency range summarizes published EPA records for EL21KLV-060-230A**. 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 106 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/Wh16–20.5106 / 106
EER2 · BTU/Wh11–12.2106 / 106
HSPF2 · BTU/Wh8.2–9106 / 106
Cooling capacity · BTU/h52,500–56,000106 / 106
Heating capacity at 47°F / 8.3°C · BTU/h52,000–55,500106 / 106
Heating capacity at 17°F / −8.3°C · BTU/h40,000–46,000106 / 106
Heating capacity at 5°F / −15°C · BTU/h31,000–38,500106 / 106
COP at 5°F / −15°C2.06–2.18106 / 106
Equipment / loop typeHP - Split System106 / 106
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)106 / 106
Compressor stagingContinuously variable106 / 106
Connected capabilityNo106 / 106

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-49C-**+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21711700320.508.50356002.12EPA 4006024
CK40[C,U]T-49C-**+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21711700620.508.50356002.12EPA 4006025
CK40[C,U]T-60C-**+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21711702320.508.50348002.16EPA 4006033
CK40[C,U]T-60C-**+TDR+ furnace: SL280UH090V60C*AHRI reference: 21711702420.508.50346002.18EPA 4006034
CK40[C,U]T-60C-**+TDR+ furnace: SL280UH090XV60C*AHRI reference: 21711702520.508.50346002.18EPA 4006035
CK40[C,U]T-60C-**+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21711702620.508.50348002.16EPA 4006036
CK40[C,U]T-60C-**+TDR+ furnace: SL280UH110V60C*AHRI reference: 21711702720.508.50348002.16EPA 4006037
CK40[C,U]T-60C-**+TDR+ furnace: SL280UH110XV60C*AHRI reference: 21711702820.508.50348002.16EPA 4006038
CK40[C,U]T-60D-**+TDR+ furnace: SL280UH135V60D*AHRI reference: 21711703420.509.00342002.16EPA 4006044
CK40[C,U]T-60D-**+TDR+ furnace: SL297UH080NV60C*AHRI reference: 21711703520.508.50346002.14EPA 4006045
CK40[C,U]T-60D-**+TDR+ furnace: EL297UH135XV60D*AHRI reference: 21711703720.508.50344002.14EPA 4006047
CK40[C,U]T-60C-**+TDR+ furnace: ML180UH110V60C*AHRI reference: 21712151420.508.50338002.18EPA 4006403
CK40[C,U]T-60D-**+TDR+ furnace: SLP99UH135XV60D*AHRI reference: 21711712220.508.50344002.14EPA 4006572
CK40HT-60D-**+TDR+ furnace: SL280UH135V60D*AHRI reference: 21711700720.008.50352002.10EPA 4006026
CK40HT-60D-**+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21711701520.008.50352002.08EPA 4006028
CK40[C,U]T-60C-**+TDR+ furnace: SL297UH080NV60C*AHRI reference: 21711702920.008.50352002.14EPA 4006039
CK40[C,U]T-60C-**+TDR+ furnace: SLP99UH090XV60C*AHRI reference: 21711703020.008.50350002.14EPA 4006040
CK40[C,U]T-60C-**+TDR+ furnace: SLP99UH110XV60C*AHRI reference: 21711703120.008.50350002.16EPA 4006041
CK40[C,U]T-60C-**+TDR+ furnace: EL297UH090XV60C*AHRI reference: 21711703220.008.50352002.14EPA 4006042
CK40[C,U]T-60C-**+TDR+ furnace: EL297UH110XV60C*AHRI reference: 21711703320.008.50350002.16EPA 4006043

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 →