LG KUMXB541AvsTempstar Q5H9V48*K*AAA*
Side-by-side heat pump comparison
LG KUMXB541A
SEER2
18.5–20.6BTU/Wh
HSPF2
9.3–9.5BTU/Wh
Cooling Capacity
50500BTU/hr
Refrigerant
R-32
GWP 675 · Lower
Tempstar Q5H9V48*K*AAA*
SEER2
15.2–19BTU/Wh
HSPF2
8.5–10BTU/Wh
Cooling Capacity
43500–49500BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
LG KUMXB541A is 8% more efficient at 20.6 BTU/Wh versus 19.0 BTU/Wh for the Tempstar Q5H9V48*K*AAA*. The LG KUMXB541A is larger at 50500 BTU/hr versus 49500 BTU/hr. Tempstar Q5H9V48*K*AAA* uses a lower-impact refrigerant: R-454B (GWP 470) versus R-32 (GWP 675).
Efficiency
| Spec | LG | Tempstar |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 20.6 | 19 |
| SEER2 (worst combination)(BTU/Wh) | 18.5 | 15.2 |
| HSPF2 (best combination)(BTU/Wh) | 9.5 | 10 |
| HSPF2 (worst combination)(BTU/Wh) | 9.3 | 8.5 |
| EER2 (best combination)(BTU/Wh) | 12.6 | 13.5 |
| COP at 5 °F | 2.19 | 2.32 |
Capacity
| Spec | LG | Tempstar |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 50500 | 49500 |
| Cooling Capacity (min)(BTU/hr) | 50500 | 43500 |
| Heating at 47 °F(BTU/hr) | 58000 | 55000 |
| Heating at 17 °F(BTU/hr) | 37200 | 47000 |
| Heating at 5 °F(BTU/hr) | 41000 | 41500 |
Configuration
| Spec | LG | Tempstar |
|---|---|---|
| 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 | KUMXB541A | QuietComfort 19 SEER2 VS HP |
| Indoor-Unit Combinations Rated | 3 | 507 |
Refrigerant
| Spec | LG | Tempstar |
|---|---|---|
| Type | R-32 | R-454B |
| GWP Rating | R-32 (GWP:675 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |