MAINLINE MLP15AZ36AJ2NvsZERO ZOV-36HDTB
Side-by-side heat pump comparison
MAINLINE MLP15AZ36AJ2N
SEER2
15.2BTU/Wh
HSPF2
7.8–8.1BTU/Wh
Cooling Capacity
34200BTU/hr
Cold Climate
Yes
Cold climate certified
ZERO ZOV-36HDTB
SEER2
19BTU/Wh
HSPF2
9BTU/Wh
Cooling Capacity
34000BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
ZERO ZOV-36HDTB is 20% more efficient at 19.0 BTU/Wh versus 15.2 BTU/Wh for the MAINLINE MLP15AZ36AJ2N. The MAINLINE MLP15AZ36AJ2N is larger at 34200 BTU/hr versus 34000 BTU/hr. ZERO ZOV-36HDTB uses a lower-impact refrigerant: R-454B (GWP 470) versus R-410A (GWP 2088). Overall, the ZERO ZOV-36HDTB sits higher in the category, ranking above 65% of certified air-source heat pumps.
Efficiency
| Spec | MAINLINE | ZERO |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 15.2 | 19 |
| SEER2 (worst combination)(BTU/Wh) | 15.2 | 19 |
| HSPF2 (best combination)(BTU/Wh) | 8.1 | 9 |
| HSPF2 (worst combination)(BTU/Wh) | 7.8 | 9 |
| EER2 (best combination)(BTU/Wh) | 11.7 | 10 |
| COP at 5 °F | 2.30 | 1.90 |
Capacity
| Spec | MAINLINE | ZERO |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 34200 | 34000 |
| Cooling Capacity (min)(BTU/hr) | 34200 | 34000 |
| Heating at 47 °F(BTU/hr) | 34200 | 34000 |
| Heating at 17 °F(BTU/hr) | 24400 | 25000 |
| Heating at 5 °F(BTU/hr) | 19400 | 26000 |
Configuration
| Spec | MAINLINE | ZERO |
|---|---|---|
| Product Type | HP - Split System | HP - Split System |
| Compressor Staging | Two-stage | Continuously variable |
| Cold Climate Certified | Yes | Yes |
| Connected Capability | No | No |
| Series | Elite | Z-MAX |
| Indoor-Unit Combinations Rated | 2 | 1 |
Refrigerant
| Spec | MAINLINE | ZERO |
|---|---|---|
| Type | R-410A | R-454B |
| GWP Rating | R-410A (GWP:2088) | R-454B (GWP:470 | Lower GWP) |