Day & Night D5CUHAH18AAK+TIC2025-0016vsYork YH518E2S11
Side-by-side heat pump comparison
Day & Night D5CUHAH18AAK+TIC2025-0016
SEER2
15.2–16.5BTU/Wh
HSPF2
8.1–9BTU/Wh
Cooling Capacity
17400–18700BTU/hr
Cold Climate
Yes
Cold climate certified
York YH518E2S11
SEER2
15.2–16BTU/Wh
HSPF2
7.8BTU/Wh
Cooling Capacity
17000–18600BTU/hr
Refrigerant
R-454B
GWP 470 · Lower
Key differences
Day & Night D5CUHAH18AAK+TIC2025-0016 is 3% more efficient at 16.5 BTU/Wh versus 16.0 BTU/Wh for the York YH518E2S11. The Day & Night D5CUHAH18AAK+TIC2025-0016 is larger at 18700 BTU/hr versus 18600 BTU/hr. Overall, the Day & Night D5CUHAH18AAK+TIC2025-0016 sits higher in the category, ranking above 37% of certified air-source heat pumps.
Efficiency
| Spec | Day & Night | York |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 16.5 | 16 |
| SEER2 (worst combination)(BTU/Wh) | 15.2 | 15.2 |
| HSPF2 (best combination)(BTU/Wh) | 9 | 7.8 |
| HSPF2 (worst combination)(BTU/Wh) | 8.1 | 7.8 |
| EER2 (best combination)(BTU/Wh) | 11 | 12.5 |
| COP at 5 °F | 2.04 | 2.34 |
Capacity
| Spec | Day & Night | York |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 18700 | 18600 |
| Cooling Capacity (min)(BTU/hr) | 17400 | 17000 |
| Heating at 47 °F(BTU/hr) | 20200 | 17000 |
| Heating at 17 °F(BTU/hr) | 15300 | 11300 |
| Heating at 5 °F(BTU/hr) | 17600 | 9100 |
Configuration
| Spec | Day & Night | York |
|---|---|---|
| Product Type | HP - Split System | HP - Split System |
| Compressor Staging | Continuously variable | Single stage |
| Cold Climate Certified | Yes | No |
| Connected Capability | No | No |
| Series | Crossover Heat Pump | LX SERIES |
| Indoor-Unit Combinations Rated | 63 | 249 |
Refrigerant
| Spec | Day & Night | York |
|---|---|---|
| Type | R-454B | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |