Daikin RXF18AXVJUvsZERO ZSOVA-18HDMB-USHH
Side-by-side heat pump comparison
Daikin RXF18AXVJU
SEER2
21BTU/Wh
HSPF2
9.6BTU/Wh
Cooling Capacity
18100BTU/hr
Refrigerant
R-32
GWP 675 · Lower
ZERO ZSOVA-18HDMB-USHH
SEER2
19BTU/Wh
HSPF2
9.7BTU/Wh
Cooling Capacity
18000BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
Daikin RXF18AXVJU is 10% more efficient at 21.0 BTU/Wh versus 19.0 BTU/Wh for the ZERO ZSOVA-18HDMB-USHH. The Daikin RXF18AXVJU is larger at 18100 BTU/hr versus 18000 BTU/hr. ZERO ZSOVA-18HDMB-USHH uses a lower-impact refrigerant: R-454B (GWP 470) versus R-32 (GWP 675). Overall, the Daikin RXF18AXVJU sits higher in the category, ranking above 36% of certified air-source heat pumps.
Efficiency
| Spec | Daikin | ZERO |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 21 | 19 |
| SEER2 (worst combination)(BTU/Wh) | 21 | 19 |
| HSPF2 (best combination)(BTU/Wh) | 9.6 | 9.7 |
| HSPF2 (worst combination)(BTU/Wh) | 9.6 | 9.7 |
| EER2 (best combination)(BTU/Wh) | 12 | 12.5 |
| COP at 5 °F | 2.10 | 2 |
Capacity
| Spec | Daikin | ZERO |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 18100 | 18000 |
| Cooling Capacity (min)(BTU/hr) | 18100 | 18000 |
| Heating at 47 °F(BTU/hr) | 21600 | 19000 |
| Heating at 17 °F(BTU/hr) | 12800 | 15000 |
| Heating at 5 °F(BTU/hr) | 10700 | 18000 |
Configuration
| Spec | Daikin | ZERO |
|---|---|---|
| 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 | OTERRA | ZAVA Series |
| Indoor-Unit Combinations Rated | 1 | 1 |
Refrigerant
| Spec | Daikin | ZERO |
|---|---|---|
| Type | R-32 | R-454B |
| GWP Rating | R-32 (GWP:675 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |