Viessmann D5CUHAH30AAK+TIC2025-0016vsWillis HW-COND36K
Side-by-side heat pump comparison
Viessmann D5CUHAH30AAK+TIC2025-0016
SEER2
16.5BTU/Wh
HSPF2
9BTU/Wh
Cooling Capacity
31200BTU/hr
Cold Climate
Yes
Cold climate certified
Willis HW-COND36K
SEER2
19.5BTU/Wh
HSPF2
10.5BTU/Wh
Cooling Capacity
32000BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
Willis HW-COND36K is 15% more efficient at 19.5 BTU/Wh versus 16.5 BTU/Wh for the Viessmann D5CUHAH30AAK+TIC2025-0016. The Willis HW-COND36K is larger at 32000 BTU/hr versus 31200 BTU/hr.
Efficiency
| Spec | Viessmann | Willis |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 16.5 | 19.5 |
| SEER2 (worst combination)(BTU/Wh) | 16.5 | 19.5 |
| HSPF2 (best combination)(BTU/Wh) | 9 | 10.5 |
| HSPF2 (worst combination)(BTU/Wh) | 9 | 10.5 |
| EER2 (best combination)(BTU/Wh) | 10.5 | 11.7 |
| COP at 5 °F | 1.92 | 2.15 |
Capacity
| Spec | Viessmann | Willis |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 31200 | 32000 |
| Cooling Capacity (min)(BTU/hr) | 31200 | 32000 |
| Heating at 47 °F(BTU/hr) | 37200 | 32000 |
| Heating at 17 °F(BTU/hr) | 21000 | 32000 |
| Heating at 5 °F(BTU/hr) | 32000 | 31000 |
Configuration
| Spec | Viessmann | Willis |
|---|---|---|
| Product Type | HP - Split System | HP - Split System |
| Compressor Staging | Continuously variable | Continuously variable |
| Cold Climate Certified | Yes | Yes |
| Connected Capability | No | No |
| Series | Crossover Heat Pump | Hi-PRO HD |
| Indoor-Unit Combinations Rated | 2 | 1 |
Refrigerant
| Spec | Viessmann | Willis |
|---|---|---|
| Type | R-454B | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |