TOSOT / AIR-SOURCE HEAT PUMP
GWHD21-24H2D
M-Series · EPA record 4478648
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 4478648. 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 | 18.00 |
| EER2 · BTU/Wh | 12.00 |
| HSPF2 · BTU/Wh | 8.10 |
| Cooling capacity · BTU/h | 24000 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 24000 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 22000 |
| Heating capacity at 5°F / −15°C · BTU/h | 21600 |
| COP at 5°F / −15°C | 1.86 |
| Equipment / loop type | HP - Mini or Multi Split |
| Refrigerant / source-reported GWP | R-32 (GWP:675 | Lower GWP) |
| Compressor staging | Continuously variable |
| Connected capability | No |
Outdoor-model source rating
EPA reports this outdoor model and its ratings without listing individual indoor units. A complete matched configuration is not available in this record. Do not infer compatibility with a particular indoor unit.
EPA multi-split reporting rules ↗
Outdoor unit
+GWHD21-24H2DIndoor unit
Indoor configuration not listed by EPAAHRI reference 217580937 · reported by ENERGY STAR; no direct AHRI data connection.
All source records for GWHD21-24H2D →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 | 4478648 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| cop at 5 f | 1.86 | EPA Sep 21, 2026 |
| eer2 btu wh | 12.00 | EPA Sep 21, 2026 |
| series name | M-Series | EPA Sep 21, 2026 |
| cold climate | Yes | EPA Sep 21, 2026 |
| hspf2 btu wh | 8.10 | EPA Sep 21, 2026 |
| model number | GWHD21-24H2D | EPA Sep 21, 2026 |
| product type | HP - Mini or Multi Split | EPA Sep 21, 2026 |
| seer2 btu wh | 18.00 | EPA Sep 21, 2026 |
| date certified | 2026-03-17T00:00:00.000 | EPA Sep 21, 2026 |
| manufacturer type | System Manufacturer | EPA Sep 21, 2026 |
| compressor staging | Continuously variable | EPA Sep 21, 2026 |
| energy star partner | Gree Electric Appliances Inc. of Zhuhai | EPA Sep 21, 2026 |
| connected capability | No | EPA Sep 21, 2026 |
| refrigerant with gwp | R-32 (GWP:675 | Lower GWP) | EPA Sep 21, 2026 |
| ahri reference number | 217580937 | EPA Sep 21, 2026 |
| cooling capacity btu h | 24000 | EPA Sep 21, 2026 |
| indoor unit brand name | TOSOT | EPA Sep 21, 2026 |
| outdoor unit brand name | TOSOT | EPA Sep 21, 2026 |
| date available on market | 2024-07-09T00:00:00.000 | EPA Sep 21, 2026 |
| energy star model identifier | ES_1105164_GWHD21-24H2D_07102025010825_29217580937 | EPA Sep 21, 2026 |
| heating capacity at 5 f btu h | 21600 | EPA Sep 21, 2026 |
| meets most efficient criteria | No | EPA Sep 21, 2026 |
| heating capacity at 17 f btu h | 22000 | EPA Sep 21, 2026 |
| heating capacity at 47 f btu h | 24000 | EPA Sep 21, 2026 |
| meets peak cooling requirements | Yes | EPA Sep 21, 2026 |
| controls verification procedure cvp test | DOE Federal CVP Test | EPA Sep 21, 2026 |