THF2B42T21
LX SERIES · source records, page 6
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.
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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 |
|---|---|---|---|---|---|
XAHC48FBCN1+ furnace: TM8Y080B12MP11AHRI reference: 210343888 | 16.00 | 8.10 | 18400 | 2.02 | EPA 3557429 → |
JHVTC42FBCC2N1AHRI reference: 210344130 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3557455 → |
XAHC48FBCN1+ furnace: TM8Y120C20MP11AHRI reference: 210347809 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3557684 → |
XAHD48FBCN1+ furnace: TM8Y120C20MP11AHRI reference: 210346828 | 16.00 | 8.10 | 20200 | 2.16 | EPA 3557689 → |
XAHD48FBCN1+ furnace: TM8Y100C20MP11AHRI reference: 210346834 | 16.00 | 8.10 | 20200 | 2.16 | EPA 3557700 → |
XAHC48FBCN1+ furnace: TM8Y100C20MP11AHRI reference: 210347815 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3557730 → |
XAHC48FBCN1+ furnace: TM8Y100C16MP11AHRI reference: 210347837 | 16.00 | 8.10 | 20400 | 2.12 | EPA 3557734 → |
XAHC48FBCN1+ furnace: TM8Y080C16MP11AHRI reference: 210347845 | 16.00 | 8.10 | 19000 | 2.06 | EPA 3557799 → |
XAHD48FBCN1+ furnace: TM8Y100C16MP11AHRI reference: 210351840 | 16.00 | 8.10 | 19000 | 2.06 | EPA 3557882 → |
XAHD48FBCN1+ furnace: TM8Y080C16MP11AHRI reference: 210351848 | 16.00 | 8.10 | 19000 | 2.06 | EPA 3557886 → |
JHVTD42FBCC2N1AHRI reference: 211755696 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3558181 → |
XAFC48FXXN1+JMVT16CC2N1+TXVAHRI reference: 210347106 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3624817 → |
XAFC48FXXN1+JMET16CS2N1+TXVAHRI reference: 210347989 | 16.00 | 8.10 | 19900 | 2.06 | EPA 3624819 → |
XAFC48FXXN1+JMET12CS2N1+TXVAHRI reference: 210359320 | 16.00 | 8.10 | 19200 | 2.06 | EPA 3624845 → |
XAFC48FXXN1+JMVT17CC2N1+TXVAHRI reference: 210363040 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3624899 → |
XAUC48FXXN1+JMVT16CC2N1+TXVAHRI reference: 210347114 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3720338 → |
JHETC42FBCS2N1AHRI reference: 210336528 | 16.00 | 8.10 | 21200 | 2.32 | EPA 3984246 → |
XAHC48FBCN1+ furnace: TP9C100C20MP13AHRI reference: 210346690 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3984949 → |
XAHC48FBCN1+ furnace: TM9V100C20MP12AHRI reference: 210346686 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3984950 → |
XAHC48FBCN1+ furnace: CP9C100C20MP13AHRI reference: 210346694 | 16.00 | 8.10 | 20200 | 2.12 | EPA 3984955 → |
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 →