Grandaire W5H8T36*K*AAA*vsTempstar Q5H9V36*K*AAA*
Side-by-side heat pump comparison
Grandaire W5H8T36*K*AAA*
SEER2
15.2–17BTU/Wh
HSPF2
7.8–8.5BTU/Wh
Cooling Capacity
33800–38000BTU/hr
Refrigerant
R-454B
GWP 470 · Lower
Tempstar Q5H9V36*K*AAA*
SEER2
15.2–18BTU/Wh
HSPF2
7.8–9BTU/Wh
Cooling Capacity
33400–37600BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
Tempstar Q5H9V36*K*AAA* is 6% more efficient at 18.0 BTU/Wh versus 17.0 BTU/Wh for the Grandaire W5H8T36*K*AAA*. The Grandaire W5H8T36*K*AAA* is larger at 38000 BTU/hr versus 37600 BTU/hr.
Efficiency
| Spec | Grandaire | Tempstar |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 17 | 18 |
| SEER2 (worst combination)(BTU/Wh) | 15.2 | 15.2 |
| HSPF2 (best combination)(BTU/Wh) | 8.5 | 9 |
| HSPF2 (worst combination)(BTU/Wh) | 7.8 | 7.8 |
| EER2 (best combination)(BTU/Wh) | 13 | 13.5 |
| COP at 5 °F | 2.48 | 2.18 |
Capacity
| Spec | Grandaire | Tempstar |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 38000 | 37600 |
| Cooling Capacity (min)(BTU/hr) | 33800 | 33400 |
| Heating at 47 °F(BTU/hr) | 39000 | 37400 |
| Heating at 17 °F(BTU/hr) | 24200 | 37600 |
| Heating at 5 °F(BTU/hr) | 19600 | 26600 |
Configuration
| Spec | Grandaire | Tempstar |
|---|---|---|
| Product Type | HP - Split System | HP - Split System |
| Compressor Staging | Two-stage | Continuously variable |
| Cold Climate Certified | No | Yes |
| Connected Capability | No | No |
| Series | 2-STAGE 18 SEER HP | QuietComfort 19 SEER2 VS HP |
| Indoor-Unit Combinations Rated | 68 | 450 |
Refrigerant
| Spec | Grandaire | Tempstar |
|---|---|---|
| Type | R-454B | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |