THF2B42T21
LX SERIES · source records, page 4
460 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 460 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 | 460 / 460 |
| EER2 · BTU/Wh | 11.7–12 | 460 / 460 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 460 / 460 |
| Cooling capacity · BTU/h | 39,500–42,000 | 460 / 460 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 460 / 460 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 460 / 460 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 460 / 460 |
| COP at 5°F / −15°C | 1.98–2.42 | 460 / 460 |
| Equipment / loop type | HP - Split System | 460 / 460 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 460 / 460 |
| Compressor staging | Two-stage | 460 / 460 |
| Connected capability | No | 460 / 460 |
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 |
|---|---|---|---|---|---|
XAHD48FBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212416190 | 16.00 | 8.10 | 22200 | 2.36 | EPA 2485540 → |
XAHD48FBCN1+ furnace: Z8ES100C16SMPS1AHRI reference: 212416235 | 16.00 | 8.10 | 22200 | 2.36 | EPA 2485561 → |
XAFC48FXXN1+TXV+ furnace: Z8ET100C20LMPS1AHRI reference: 212415945 | 16.00 | 8.10 | 21000 | 2.22 | EPA 2485578 → |
XAFD48FBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212415985 | 16.00 | 8.10 | 20800 | 2.22 | EPA 2485582 → |
XAHD48FBCN1+ furnace: Z8ES120C20LMPS1AHRI reference: 212478252 | 16.00 | 8.10 | 22200 | 2.34 | EPA 2485606 → |
XAHC48FBCN1+ furnace: Z8ES100C16SMPS1AHRI reference: 212416245 | 16.00 | 8.10 | 22200 | 2.36 | EPA 2485855 → |
XAHC48FBCN1+ furnace: Z9ES080C20SMPS1AHRI reference: 212415737 | 16.00 | 8.10 | 22400 | 2.32 | EPA 2485869 → |
XAFD48FBCN1+ furnace: Z8ES080C20SMPS1AHRI reference: 212416325 | 16.00 | 8.10 | 21000 | 2.22 | EPA 2485879 → |
XAHC48FBCN1+ furnace: TPLC100C20MP13AHRI reference: 210359105 | 16.00 | 8.10 | 20200 | 2.14 | EPA 2786007 → |
XAHC48FBCN1+ furnace: TMLV120C20MP12AHRI reference: 210359101 | 16.00 | 8.10 | 20200 | 2.14 | EPA 2786058 → |
XAHC48FBCN1+ furnace: CPLC120C20MP13AHRI reference: 210359114 | 16.00 | 8.10 | 20200 | 2.14 | EPA 2786223 → |
XAHC48FBCN1+ furnace: TPLC120C20MP13AHRI reference: 210359109 | 16.00 | 8.10 | 20200 | 2.14 | EPA 2786436 → |
XAHC48FBCN1+ furnace: CPLC080C16MP13AHRI reference: 210346926 | 16.00 | 8.10 | 20600 | 2.12 | EPA 2786928 → |
XAHC48FBCN1+ furnace: TPLC080C16MP13AHRI reference: 210346918 | 16.00 | 8.10 | 20600 | 2.12 | EPA 2786934 → |
XAHC48FBCN1+ furnace: CPLC100C16MP13AHRI reference: 210346928 | 16.00 | 8.10 | 20600 | 2.12 | EPA 2786939 → |
XAHC48FBCN1+ furnace: TPLC100C16MP13AHRI reference: 210346922 | 16.00 | 8.10 | 20600 | 2.12 | EPA 2786944 → |
XAHC48FBCN1+ furnace: TMLV100C16MP12AHRI reference: 210346914 | 16.00 | 8.10 | 20600 | 2.12 | EPA 2786952 → |
XAHC48FBCN1+ furnace: TM8E080B12MP11AHRI reference: 210347060 | 16.00 | 8.10 | 18600 | 2.02 | EPA 2787429 → |
XAHC48FBCN1+ furnace: TMLE080B12MP11AHRI reference: 210347066 | 16.00 | 8.10 | 18600 | 2.02 | EPA 2787433 → |
XAHC48FXXN1+TXV+ furnace: TL9E100C20UH11AHRI reference: 210347070 | 16.00 | 8.10 | 20400 | 2.12 | EPA 2787480 → |
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 →