Heil / AIR-SOURCE HEAT PUMP

H5H8T36*K*AAA*

Mainline 18 SEER2 HP · source records, page 6

188 published source records · source checked Sep 21, 2026

SEER2 range15.2–16.5BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity33,800–38,000BTU/h

Each efficiency range summarizes published EPA records for H5H8T36*K*AAA*. 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 188 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/Wh15.2–16.5188 / 188
EER2 · BTU/Wh11.7–13188 / 188
HSPF2 · BTU/Wh7.8–8.5188 / 188
Cooling capacity · BTU/h33,800–38,000188 / 188
Heating capacity at 47°F / 8.3°C · BTU/h37,200–39,000188 / 188
Heating capacity at 17°F / −8.3°C · BTU/h23,000–24,200188 / 188
Heating capacity at 5°F / −15°C · BTU/h17,500–19,600188 / 188
COP at 5°F / −15°C1.84–2.4188 / 188
Equipment / loop typeHP - Split System188 / 188
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)188 / 188
Compressor stagingTwo-stage188 / 188
Connected capabilityNo188 / 188

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
EA*5X43M21A*+WALLCON+ furnace: *80CSU0401712B*AHRI reference: 21635851915.508.00193002.26EPA 3808874
EA*5X43M21A*+WALLCON+ furnace: *80CSU0601716B*AHRI reference: 21635852715.508.00193002.24EPA 3808882
EA*5X43M21A*+WALLCON+ furnace: *97CTN1002122A*AHRI reference: 21635857515.508.00193002.24EPA 3808906
EVD5X38M17A*+ furnace: *80VSL0701716B*AHRI reference: 21635559915.507.80177001.86EPA 3808914
EA*5X42M21A*+ furnace: *80VTL0902120B*AHRI reference: 21635781515.508.10189002.26EPA 3808946
EA*5X43M21A*+WALLCON+ furnace: *96CTN1002122B*AHRI reference: 21635845515.508.00193002.24EPA 3808971
EA*5X43M21A*+ furnace: *80VTL0902120B*AHRI reference: 21635828715.508.10193002.28EPA 3808984
EA*5X43M21A*+ furnace: *80VTL1102122B*AHRI reference: 21635829515.508.10192002.30EPA 3808992
EA*5X43M21A*+ furnace: *97VTN1002120A*AHRI reference: 21635860715.508.00192002.26EPA 3809000
EA*5X48M21A*+ furnace: *97VTN1002122A*AHRI reference: 21635911115.508.00191002.26EPA 3809004
EA*5X48M21A*+WALLCON+ furnace: *80CSU0802120A*AHRI reference: 21635863915.508.00190002.26EPA 3809016
EA*5X37M21A*+ furnace: *96VTN0802120B*AHRI reference: 21635752715.508.10193002.28EPA 3809032
EA*5X37M21A*+ furnace: *96VTN1002120B*AHRI reference: 21635753515.508.10193002.28EPA 3809040
EA*5X37M21A*+ furnace: *96VTN1002122B*AHRI reference: 21635754315.508.10192002.30EPA 3809047
EA*5X37M21A*+WALLCON+ furnace: *80CSU0401712B*AHRI reference: 21635755915.508.00193002.24EPA 3809056
FTMA5B36L0C*AHRI reference: 21615190315.208.10188002.22EPA 3802007
EVM5X48M21A*+ furnace: *80VSL0902120B*AHRI reference: 21635444715.207.80177001.88EPA 3803851
EVM5X48M21A*+ furnace: *80VTL0902120B*AHRI reference: 21635452715.207.80177001.88EPA 3805817
EVM5X48M21A*+ furnace: *96VSN0802120B*AHRI reference: 21635457515.207.80179001.86EPA 3805842
EVM5X49M21A*+ furnace: *80VTL0701716B*AHRI reference: 21635475915.207.80182001.84EPA 3806525

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 →