THF2B42T21
LX SERIES · source records, page 13
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.
Model patterns and component strings are preserved exactly. How to read model patterns and combinations →
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 |
|---|---|---|---|---|---|
XAFC48FBCN1+ furnace: TMLV100C16MP12AHRI reference: 210344893 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786679 → |
XAFC48FBCN1+ furnace: TPLC100C16MP13AHRI reference: 210344909 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786689 → |
XAFC48FBCN1+ furnace: TPLC080C16MP13AHRI reference: 210344901 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786718 → |
XAFC48FBCN1+ furnace: LPLC080C16MP13AHRI reference: 210344917 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786728 → |
XAFC48FBCN1+ furnace: LPLC100C16MP13AHRI reference: 210344921 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786738 → |
XAFD48FBCN1+ furnace: TPLC100C16MP13AHRI reference: 210359157 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786770 → |
XAFD48FBCN1+ furnace: TPLC080C16MP13AHRI reference: 210359153 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786779 → |
XAFD48FBCN1+ furnace: LPLC080C16MP13AHRI reference: 210359161 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786780 → |
XAFD48FBCN1+ furnace: TMLV100C16MP12AHRI reference: 210359149 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786783 → |
XAFD48FBCN1+ furnace: LPLC100C16MP13AHRI reference: 210359163 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786792 → |
XAFD48FXXN1+TXV+ furnace: TL9E100C20UH11AHRI reference: 210347079 | 15.20 | 7.80 | 19900 | 2.04 | EPA 2787487 → |
XAFD48FXXN1+TXV+ furnace: TL9E080C16UH11AHRI reference: 210347087 | 15.20 | 7.80 | 19600 | 2.00 | EPA 2787493 → |
XAFC48FBCN1+ furnace: TM8E100C20MP11AHRI reference: 210347922 | 15.20 | 8.10 | 19600 | 2.04 | EPA 2788305 → |
XAFC48FBCN1+ furnace: TMLE100C20MP11AHRI reference: 210347934 | 15.20 | 8.10 | 19600 | 2.04 | EPA 2788381 → |
XAFC48FBCN1+ furnace: TM8E120C20MP11AHRI reference: 210343915 | 15.20 | 8.10 | 19600 | 2.04 | EPA 2788427 → |
XAFC48FBCN1+ furnace: TMLE120C20MP11AHRI reference: 210343927 | 15.20 | 8.10 | 19600 | 2.04 | EPA 2788428 → |
XAFC48FBCN1+ furnace: TM8E080C20MP11AHRI reference: 210344005 | 15.20 | 8.10 | 19800 | 2.04 | EPA 2788498 → |
XAFC48FBCN1+ furnace: TMLE080C20MP11AHRI reference: 210344017 | 15.20 | 8.10 | 19800 | 2.04 | EPA 2788503 → |
XAHD48FBCN1+ furnace: TMLV100C16MP12AHRI reference: 210362913 | 15.20 | 8.10 | 20400 | 2.12 | EPA 2813847 → |
XAHD48FBCN1+ furnace: TPLC100C16MP13AHRI reference: 210362921 | 15.20 | 8.10 | 20400 | 2.12 | EPA 2813857 → |
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 →