Lennox ML16KP2-060-230A**vsWeatherKing RHPXZS060AJT
Side-by-side heat pump comparison
Lennox ML16KP2-060-230A**
SEER2
15.5–15.8BTU/Wh
HSPF2
7.8BTU/Wh
Cooling Capacity
57500–58500BTU/hr
Refrigerant
R-454B
GWP 470 · Lower
WeatherKing RHPXZS060AJT
SEER2
15.2BTU/Wh
HSPF2
7.2BTU/Wh
Cooling Capacity
58000BTU/hr
Refrigerant
R-410A
GWP 2088 · Higher
Key differences
Lennox ML16KP2-060-230A** is 4% more efficient at 15.8 BTU/Wh versus 15.2 BTU/Wh for the WeatherKing RHPXZS060AJT. The Lennox ML16KP2-060-230A** is larger at 58500 BTU/hr versus 58000 BTU/hr. Lennox ML16KP2-060-230A** uses a lower-impact refrigerant: R-454B (GWP 470) versus R-410A (GWP 2088). Overall, the Lennox ML16KP2-060-230A** sits higher in the category, ranking above 14% of certified air-source heat pumps.
Efficiency
| Spec | Lennox | WeatherKing |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 15.8 | 15.2 |
| SEER2 (worst combination)(BTU/Wh) | 15.5 | 15.2 |
| HSPF2 (best combination)(BTU/Wh) | 7.8 | 7.2 |
| HSPF2 (worst combination)(BTU/Wh) | 7.8 | 7.2 |
| EER2 (best combination)(BTU/Wh) | 12.2 | 11.5 |
| COP at 5 °F | 2.10 | — |
Capacity
| Spec | Lennox | WeatherKing |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 58500 | 58000 |
| Cooling Capacity (min)(BTU/hr) | 57500 | 58000 |
| Heating at 47 °F(BTU/hr) | 54500 | 56000 |
| Heating at 17 °F(BTU/hr) | 34200 | 35200 |
| Heating at 5 °F(BTU/hr) | 27800 | — |
Configuration
| Spec | Lennox | WeatherKing |
|---|---|---|
| Product Type | HP - Split System | HP - Single Package |
| Compressor Staging | Two-stage | Two-stage |
| Cold Climate Certified | No | No |
| Connected Capability | No | No |
| Series | Merit ML16KP2 SERIES | RHPXZS |
| Indoor-Unit Combinations Rated | 2 | 1 |
Refrigerant
| Spec | Lennox | WeatherKing |
|---|---|---|
| Type | R-454B | R-410A |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-410A (GWP:2088) |