LG KUMXB241AvsViessmann D5CURAH24AAK+KSAIC0701230
Side-by-side heat pump comparison
LG KUMXB241A
SEER2
18.5–22.5BTU/Wh
HSPF2
9–9.8BTU/Wh
Cooling Capacity
22000–24000BTU/hr
Refrigerant
R-32
GWP 675 · Lower
Viessmann D5CURAH24AAK+KSAIC0701230
SEER2
16BTU/Wh
HSPF2
9BTU/Wh
Cooling Capacity
23800BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
LG KUMXB241A is 29% more efficient at 22.5 BTU/Wh versus 16.0 BTU/Wh for the Viessmann D5CURAH24AAK+KSAIC0701230. The LG KUMXB241A is larger at 24000 BTU/hr versus 23800 BTU/hr. Viessmann D5CURAH24AAK+KSAIC0701230 uses a lower-impact refrigerant: R-454B (GWP 470) versus R-32 (GWP 675). Overall, the LG KUMXB241A sits higher in the category, ranking above 44% of certified air-source heat pumps.
Efficiency
| Spec | LG | Viessmann |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 22.5 | 16 |
| SEER2 (worst combination)(BTU/Wh) | 18.5 | 16 |
| HSPF2 (best combination)(BTU/Wh) | 9.8 | 9 |
| HSPF2 (worst combination)(BTU/Wh) | 9 | 9 |
| EER2 (best combination)(BTU/Wh) | 12.5 | 10 |
| COP at 5 °F | 2.30 | 1.98 |
Capacity
| Spec | LG | Viessmann |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 24000 | 23800 |
| Cooling Capacity (min)(BTU/hr) | 22000 | 23800 |
| Heating at 47 °F(BTU/hr) | 24600 | 25400 |
| Heating at 17 °F(BTU/hr) | 15300 | 19400 |
| Heating at 5 °F(BTU/hr) | 17300 | 19800 |
Configuration
| Spec | LG | Viessmann |
|---|---|---|
| Product Type | HP - Mini or Multi Split | HP - Split System |
| Compressor Staging | Continuously variable | Continuously variable |
| Cold Climate Certified | No | Yes |
| Connected Capability | No | No |
| Series | KUMXB241A | Crossover Heat Pump |
| Indoor-Unit Combinations Rated | 3 | 1 |
Refrigerant
| Spec | LG | Viessmann |
|---|---|---|
| Type | R-32 | R-454B |
| GWP Rating | R-32 (GWP:675 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |