Sure RD18AY36AJVCvsWells WSA-33HFMO
Side-by-side heat pump comparison
Sure RD18AY36AJVC
SEER2
15.2–20BTU/Wh
HSPF2
8.1–10BTU/Wh
Cooling Capacity
31000–32800BTU/hr
Cold Climate
Yes
Cold climate certified
Wells WSA-33HFMO
SEER2
20BTU/Wh
HSPF2
10BTU/Wh
Cooling Capacity
33000BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
The Wells WSA-33HFMO is larger at 33000 BTU/hr versus 32800 BTU/hr. Sure RD18AY36AJVC uses a lower-impact refrigerant: R-454B (GWP 470) versus R-410A (GWP 2088).
Efficiency
| Spec | Sure | Wells |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 20 | 20 |
| SEER2 (worst combination)(BTU/Wh) | 15.2 | 20 |
| HSPF2 (best combination)(BTU/Wh) | 10 | 10 |
| HSPF2 (worst combination)(BTU/Wh) | 8.1 | 10 |
| EER2 (best combination)(BTU/Wh) | 13 | 11.7 |
| COP at 5 °F | 2.10 | 1.80 |
Capacity
| Spec | Sure | Wells |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 32800 | 33000 |
| Cooling Capacity (min)(BTU/hr) | 31000 | 33000 |
| Heating at 47 °F(BTU/hr) | 36000 | 35000 |
| Heating at 17 °F(BTU/hr) | 29800 | 27800 |
| Heating at 5 °F(BTU/hr) | 28200 | 34600 |
Configuration
| Spec | Sure | Wells |
|---|---|---|
| Product Type | HP - Split System | HP - Mini or Multi Split |
| Compressor Staging | Continuously variable | Continuously variable |
| Cold Climate Certified | Yes | Yes |
| Connected Capability | Yes | No |
| Series | VANTIX | WSA Series |
| Indoor-Unit Combinations Rated | 176 | 1 |
Refrigerant
| Spec | Sure | Wells |
|---|---|---|
| Type | R-454B | R-410A |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-410A (GWP:2088) |