Lennox / AIR-SOURCE HEAT PUMP
XP21-036-230-**
DAVE LENNOX SIGNATURE XP21 SERIES · EPA record 2452244
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 2452244. Temperature points and test metrics are preserved as reported. Missing and zero values are not substituted with estimates.
| Metric or attribute | Source value |
|---|---|
| SEER2 · BTU/Wh | 16.00 |
| EER2 · BTU/Wh | 12.20 |
| HSPF2 · BTU/Wh | 8.00 |
| Cooling capacity · BTU/h | 35000 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 34200 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 23400 |
| Heating capacity at 5°F / −15°C · BTU/h | Not supplied |
| COP at 5°F / −15°C | Not supplied |
| Equipment / loop type | HP - Split System |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) |
| Compressor staging | Two-stage |
| Connected capability | No |
This listed system
These ratings apply to the listed configuration. Changing a component may change performance.
Outdoor unit
+XP21-036-230-**Indoor unit
+CH35-48B+TDR+TXVRequired furnace
EL280UH070XE36A*AHRI reference 203361971 · reported by ENERGY STAR; no direct AHRI data connection.
All source records for XP21-036-230-** →Specifications & provenance
Every value below is preserved from the source record. Checked Sep 21, 2026. Asterisks and other model wildcards are retained as published.
| Source field | Reported value | Evidence |
|---|---|---|
| pd id | 2452244 | EPA Sep 21, 2026 |
| markets | United States | EPA Sep 21, 2026 |
| eer2 btu wh | 12.20 | EPA Sep 21, 2026 |
| series name | DAVE LENNOX SIGNATURE XP21 SERIES | EPA Sep 21, 2026 |
| cold climate | No | EPA Sep 21, 2026 |
| hspf2 btu wh | 8.00 | EPA Sep 21, 2026 |
| model number | XP21-036-230-** | EPA Sep 21, 2026 |
| product type | HP - Split System | EPA Sep 21, 2026 |
| seer2 btu wh | 16.00 | EPA Sep 21, 2026 |
| date certified | 2023-03-28T00:00:00.000 | EPA Sep 21, 2026 |
| manufacturer type | System Manufacturer | EPA Sep 21, 2026 |
| compressor staging | Two-stage | EPA Sep 21, 2026 |
| energy star partner | Lennox Industries | EPA Sep 21, 2026 |
| connected capability | No | EPA Sep 21, 2026 |
| furnace model number | EL280UH070XE36A* | EPA Sep 21, 2026 |
| refrigerant with gwp | R-410A (GWP:2088) | EPA Sep 21, 2026 |
| ahri reference number | 203361971 | EPA Sep 21, 2026 |
| cooling capacity btu h | 35000 | EPA Sep 21, 2026 |
| outdoor unit brand name | Lennox | EPA Sep 21, 2026 |
| date available on market | 2018-04-02T00:00:00.000 | EPA Sep 21, 2026 |
| indoor unit model number | CH35-48B+TDR+TXV | EPA Sep 21, 2026 |
| energy star model identifier | ES_1082495_XP21-036-230-**_02212023200817_2290822 | EPA Sep 21, 2026 |
| meets most efficient criteria | No | EPA Sep 21, 2026 |
| heating capacity at 17 f btu h | 23400 | EPA Sep 21, 2026 |
| heating capacity at 47 f btu h | 34200 | EPA Sep 21, 2026 |
| meets peak cooling requirements | Yes | EPA Sep 21, 2026 |