THF2B42T21
LX SERIES · source records, page 6
461 published source records · source checked Sep 21, 2026
Each efficiency range summarizes published EPA records for THF2B42T21. 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.
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Heating performance & equipment details
Ranges include the 461 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 field | Value / range | Records supplying it |
|---|---|---|
| SEER2 · BTU/Wh | 15.2–16 | 461 / 461 |
| EER2 · BTU/Wh | 11.7–12 | 461 / 461 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 461 / 461 |
| Cooling capacity · BTU/h | 39,500–42,000 | 461 / 461 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 461 / 461 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 461 / 461 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 461 / 461 |
| COP at 5°F / −15°C | 1.98–2.42 | 461 / 461 |
| Equipment / loop type | HP - Split System | 461 / 461 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 461 / 461 |
| Compressor staging | Two-stage | 461 / 461 |
| Connected capability | No | 461 / 461 |
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 furnace | SEER2BTU/Wh | HSPF2BTU/Wh | Heating capacity at 5°F / −15°CBTU/h | COP at 5°F / −15°C | Record & comparison |
|---|---|---|---|---|---|
XAHC48FBCN1+ furnace: TM8Y080B12MP11AHRI reference: 210343889 | 16.00 | 8.10 | 18400 | 2.02 | EPA 3557430 → |
JHVTC42FBCC2N1AHRI reference: 210344131 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3557457 → |
XAHD48FBCN1+ furnace: TM8Y120C20MP11AHRI reference: 210346829 | 16.00 | 8.10 | 20200 | 2.16 | EPA 3557693 → |
XAHD48FBCN1+ furnace: TM8Y100C20MP11AHRI reference: 210346835 | 16.00 | 8.10 | 20200 | 2.16 | EPA 3557702 → |
XAHC48FBCN1+ furnace: TM8Y120C20MP11AHRI reference: 210347810 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3557719 → |
XAHC48FBCN1+ furnace: TM8Y100C20MP11AHRI reference: 210347816 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3557731 → |
XAHC48FBCN1+ furnace: TM8Y100C16MP11AHRI reference: 210347838 | 16.00 | 8.10 | 20400 | 2.12 | EPA 3557735 → |
XAHC48FBCN1+ furnace: TM8Y080C16MP11AHRI reference: 210347846 | 16.00 | 8.10 | 19000 | 2.06 | EPA 3557800 → |
XAHD48FBCN1+ furnace: TM8Y100C16MP11AHRI reference: 210351841 | 16.00 | 8.10 | 19000 | 2.06 | EPA 3557883 → |
XAHD48FBCN1+ furnace: TM8Y080C16MP11AHRI reference: 210351849 | 16.00 | 8.10 | 19000 | 2.06 | EPA 3557887 → |
JHVTD42FBCC2N1AHRI reference: 211755697 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3558182 → |
XAFC48FXXN1+JMVT16CC2N1+TXVAHRI reference: 210347107 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3624831 → |
XAFC48FXXN1+JMET16CS2N1+TXVAHRI reference: 210347990 | 16.00 | 8.10 | 19900 | 2.06 | EPA 3624832 → |
XAFC48FXXN1+JMET12CS2N1+TXVAHRI reference: 210359321 | 16.00 | 8.10 | 19200 | 2.06 | EPA 3624898 → |
XAFC48FXXN1+JMVT17CC2N1+TXVAHRI reference: 210363041 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3624901 → |
XAUC48FXXN1+JMVT16CC2N1+TXVAHRI reference: 210347115 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3721490 → |
JHETC42FBCS2N1AHRI reference: 210336522 | 16.00 | 8.10 | 21200 | 2.32 | EPA 3984243 → |
XAHC48FBCN1+ furnace: TM9V100C20MP12AHRI reference: 210346687 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3984951 → |
XAHC48FBCN1+ furnace: TP9C100C20MP13AHRI reference: 210346691 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3984954 → |
XAHC48FBCN1+ furnace: LP9C100C20MP13AHRI reference: 210346695 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3984958 → |
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 →