Clima Smart MU-CSU18HEI2NAM0T24-3POvsWEATHERMAKER PH5SAN519**AA*
Side-by-side heat pump comparison
Clima Smart MU-CSU18HEI2NAM0T24-3PO
SEER2
27BTU/Wh
HSPF2
10BTU/Wh
Cooling Capacity
20000BTU/hr
Cold Climate
Yes
Cold climate certified
WEATHERMAKER PH5SAN519**AA*
SEER2
15.2–16BTU/Wh
HSPF2
7.8–8BTU/Wh
Cooling Capacity
17700–19300BTU/hr
Refrigerant
R-454B
GWP 470 · Lower
Key differences
Clima Smart MU-CSU18HEI2NAM0T24-3PO is 41% more efficient at 27.0 BTU/Wh versus 16.0 BTU/Wh for the WEATHERMAKER PH5SAN519**AA*. The Clima Smart MU-CSU18HEI2NAM0T24-3PO is larger at 20000 BTU/hr versus 19300 BTU/hr. Overall, the Clima Smart MU-CSU18HEI2NAM0T24-3PO sits higher in the category, ranking above 96% of certified air-source heat pumps.
Efficiency
| Spec | Clima Smart | WEATHERMAKER |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 27 | 16 |
| SEER2 (worst combination)(BTU/Wh) | 27 | 15.2 |
| HSPF2 (best combination)(BTU/Wh) | 10 | 8 |
| HSPF2 (worst combination)(BTU/Wh) | 10 | 7.8 |
| EER2 (best combination)(BTU/Wh) | 15 | 13 |
| COP at 5 °F | 2 | 2 |
Capacity
| Spec | Clima Smart | WEATHERMAKER |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 20000 | 19300 |
| Cooling Capacity (min)(BTU/hr) | 20000 | 17700 |
| Heating at 47 °F(BTU/hr) | 20000 | 19500 |
| Heating at 17 °F(BTU/hr) | 23000 | 11000 |
| Heating at 5 °F(BTU/hr) | 19800 | 8500 |
Configuration
| Spec | Clima Smart | WEATHERMAKER |
|---|---|---|
| Product Type | HP - Mini or Multi Split | HP - Split System |
| Compressor Staging | Continuously variable | Single stage |
| Cold Climate Certified | Yes | No |
| Connected Capability | No | No |
| Series | Clima Smart multi zone | 15 SEER2 HP |
| Indoor-Unit Combinations Rated | 1 | 50 |
Refrigerant
| Spec | Clima Smart | WEATHERMAKER |
|---|---|---|
| Type | R-454B | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |