Day & Night / AIR-SOURCE HEAT PUMP

CVH837GKA2*+TSTAT

CONSTANTCOMFORT DELUXE 18 VS HP 2-STAGE · source records, page 2

65 published source records · source checked Sep 21, 2026

SEER2 range17–18BTU/Wh
HSPF2 range8.1–8.5BTU/Wh
Cooling capacity31,600–33,000BTU/h

Each efficiency range summarizes published EPA records for CVH837GKA2*+TSTAT. 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 65 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/Wh17–1865 / 65
EER2 · BTU/Wh11.7–1265 / 65
HSPF2 · BTU/Wh8.1–8.565 / 65
Cooling capacity · BTU/h31,600–33,00065 / 65
Heating capacity at 47°F / 8.3°C · BTU/h46,000–48,00065 / 65
Heating capacity at 17°F / −8.3°C · BTU/h30,200–31,00065 / 65
Heating capacity at 5°F / −15°C · BTU/h24,000–24,40065 / 65
COP at 5°F / −15°C1.94–1.9865 / 65
Equipment / loop typeHP - Split System65 / 65
Refrigerant / source-reported GWPR-410A (GWP:2088)65 / 65
Compressor stagingTwo-stage65 / 65
Connected capabilityNo65 / 65

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
EN(A,D,W)4X60L24**+ furnace: *96VSN0802120A*AHRI reference: 21046490717.508.10242001.94EPA 2417420
EN(A,D,W)4X60L24**+ furnace: *96VSN1002120A*AHRI reference: 21046491817.508.10240001.94EPA 2417438
EN(A,D,W)4X60L24**+ furnace: *96VSN1202422A*AHRI reference: 21046492917.508.10240001.94EPA 2417627
EN(A,D,W)4X60L24**+ furnace: *96VTN1002120A*AHRI reference: 21046515317.508.10242001.96EPA 2417631
EN(A,D,W)4X60L24**+ furnace: *96VTN1202422A*AHRI reference: 21046503217.508.10240001.94EPA 2417645
EA*4X61L21A*+ furnace: *96VTN1002120A*AHRI reference: 21046162017.508.10242001.96EPA 2632666
EA*4X61L21A*+ furnace: *80VTL0701716A*AHRI reference: 21046145417.508.10244001.96EPA 2632677
EA*4X61L24A*+ furnace: *96VSN0802120A*AHRI reference: 21046173017.508.10242001.96EPA 2632688
EA*4X60L24A*+ furnace: *80VSL0902420A*AHRI reference: 21046104017.508.10240001.96EPA 2632718
EA*4X60L24A*+ furnace: *80VSL1102422A*AHRI reference: 21046105117.508.10240001.96EPA 2632741
EA*4X60L24A*+ furnace: *80VSL0902120A*AHRI reference: 21046102917.508.10240001.94EPA 2632745
EA*4X60L24A*+ furnace: *80VTL0902120A*AHRI reference: 21046106217.508.10240001.94EPA 2632756
EN(A,D)4X48L24**+ furnace: *96VTN1002120A*AHRI reference: 21046483017.508.10244001.94EPA 2632781
EN(A,D)4X48L24**+ furnace: *96VTN0802120A*AHRI reference: 21046481917.508.10244001.94EPA 2632798
EA*4X60L24A*+ furnace: *96VSN1202422A*AHRI reference: 21046097317.508.10242001.96EPA 2632821
EN(A,D,W)4X60L24**+ furnace: *96VTN0802120A*AHRI reference: 21046514217.508.10244001.96EPA 2632840
EA*4X60L24A*+ furnace: *96VSN1002120A*AHRI reference: 21046096217.508.10240001.96EPA 2632845
EN(A,D)4X48L24**+ furnace: *96VTN1202422A*AHRI reference: 21046470917.508.10242001.94EPA 2632890
EA*4X37L21A*+ furnace: *96VTN1002122A*AHRI reference: 21045848417.508.50244001.98EPA 2632915
EA*4X43L21A*+ furnace: *96VTN1002122A*AHRI reference: 21045974117.508.50244001.98EPA 2632925

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 →