THF2B42T21
LX SERIES · source records, page 9
430 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 430 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 | 430 / 430 |
| EER2 · BTU/Wh | 11.7–12 | 430 / 430 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 430 / 430 |
| Cooling capacity · BTU/h | 39,500–42,000 | 430 / 430 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 430 / 430 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 430 / 430 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 430 / 430 |
| COP at 5°F / −15°C | 1.98–2.42 | 430 / 430 |
| Equipment / loop type | HP - Split System | 430 / 430 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 430 / 430 |
| Compressor staging | Two-stage | 430 / 430 |
| Connected capability | No | 430 / 430 |
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 |
|---|---|---|---|---|---|
XAFD60GBCN1+ furnace: Z8ES080C20LMPS1AHRI reference: 212485401 | 16.00 | 8.10 | 21000 | 2.26 | EPA 3990681 → |
XAHC60GBCN1+ furnace: Z8ES080C16SMPS1AHRI reference: 212477309 | 16.00 | 8.10 | 21800 | 2.38 | EPA 3990711 → |
XAHC60GBCN1+ furnace: Z8ES080C16LMPS1AHRI reference: 212477314 | 16.00 | 8.10 | 21800 | 2.38 | EPA 3990719 → |
XAHD60GBCN1+ furnace: Z8ET120C20LMPS1AHRI reference: 212593904 | 16.00 | 8.10 | 21800 | 2.34 | EPA 3990814 → |
XAFD60GXXN1+TXV+ furnace: Z8ET100C20LMPS1AHRI reference: 212593909 | 16.00 | 8.10 | 21000 | 2.26 | EPA 3990821 → |
XAFD60GBCN1+ furnace: Z8ET100C20LMPS1AHRI reference: 212593914 | 16.00 | 8.10 | 21000 | 2.26 | EPA 3990824 → |
XAHD60GBCN1+ furnace: Z8ET080C16LMPS1AHRI reference: 212593929 | 16.00 | 8.10 | 22000 | 2.36 | EPA 3990831 → |
XAFC60GBCN1+ furnace: Z8ES080C20SMPS1AHRI reference: 212488313 | 16.00 | 8.10 | 21800 | 2.26 | EPA 3990912 → |
XAFC60GBCN1+ furnace: Z8ES080C20LMPS1AHRI reference: 212488323 | 16.00 | 8.10 | 21800 | 2.26 | EPA 3990914 → |
XAHC60GBCN1+ furnace: Z8ET120C20LMPS1AHRI reference: 212594044 | 16.00 | 8.10 | 21800 | 2.36 | EPA 3991011 → |
XAFC60GBCN1+ furnace: Z8ET100C20LMPS1AHRI reference: 212594054 | 16.00 | 8.10 | 20800 | 2.28 | EPA 3991016 → |
XAHC60GBCN1+ furnace: Z8ET080C16LMPS1AHRI reference: 212594069 | 16.00 | 8.10 | 22000 | 2.38 | EPA 3991021 → |
XAHC60GBCN1+ furnace: Z8ET100C20LMPS1AHRI reference: 212594175 | 16.00 | 8.10 | 21600 | 2.38 | EPA 3991072 → |
XAHC60GBCN1+ furnace: Z8ES120C20SMPS1AHRI reference: 212482356 | 16.00 | 8.10 | 22200 | 2.34 | EPA 3991104 → |
XAHC60GBCN1+ furnace: Z8ES120C20LMPS1AHRI reference: 212482361 | 16.00 | 8.10 | 22200 | 2.34 | EPA 3991110 → |
XAFC60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212482380 | 16.00 | 8.10 | 21000 | 2.28 | EPA 3991112 → |
XAFC60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212482390 | 16.00 | 8.10 | 21000 | 2.28 | EPA 3991116 → |
XAHC60GBCN1+ furnace: Z8ES080C20SMPS1AHRI reference: 212482484 | 16.00 | 8.10 | 22000 | 2.34 | EPA 3991134 → |
XAHC60GBCN1+ furnace: Z8ES080C20LMPS1AHRI reference: 212482497 | 16.00 | 8.10 | 22000 | 2.34 | EPA 3991139 → |
XAFC60GBCN1+ furnace: Z8ES080C16SMPS1AHRI reference: 212482538 | 16.00 | 8.10 | 21200 | 2.30 | EPA 3991143 → |
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 →