Keystone KSTAW12INVvsWallmaster WCVT12B30B
Side-by-side air conditioner comparison
Keystone KSTAW12INV
Cooling Capacity
12000BTU/hr
CEER
15BTU/Wh
Voltage
115V
Weight
56.9lb
Wallmaster WCVT12B30B
Cooling Capacity
11800BTU/hr
CEER
13.90BTU/Wh
Voltage
230V
Weight
110lb
Key differences
Keystone KSTAW12INV is 7% more efficient at 15.00 BTU/Wh versus 13.90 BTU/Wh for the Wallmaster WCVT12B30B. The Keystone KSTAW12INV is larger at 12000 BTU/hr versus 11800 BTU/hr. Overall, the Keystone KSTAW12INV sits higher in the category, ranking above 53% of certified room air conditioners.
Performance
| Spec | Keystone | Wallmaster |
|---|---|---|
| Cooling Capacity(BTU/hr) | 12000 | 11800 |
| CEER(BTU/Wh) | 15 | 13.90 |
| Variable Speed Compressor | Yes | Yes |
| Heating Mode | No | No |
Electrical
| Spec | Keystone | Wallmaster |
|---|---|---|
| Voltage(V) | 115 | 230 |
Dimensions
| Spec | Keystone | Wallmaster |
|---|---|---|
| Width(in) | 19.2 | 26.5 |
| Height(in) | 13.5 | 15.8 |
| Depth(in) | 22 | 21 |
| Weight(lb) | 56.9 | 110 |
Installation
| Spec | Keystone | Wallmaster |
|---|---|---|
| Type | Window | Through the Wall |
| Product Class | 3. Without reverse cycle, with louvered sides, and 8, 000 to 13, 999 Btu/h | 8b. Without reverse cycle, without louvered sides, and 11, 000 to 13, 999 Btu/h |
| Mounting Type | Straddles Window | Does Not Straddle Window or Windowsill |
| Support Bracket | Yes | No |
| Casement Window | None | None |
Refrigerant
| Spec | Keystone | Wallmaster |
|---|---|---|
| Type | R-32 | R-32 |
| GWP Rating | R-32 (GWP:675 | Lower GWP) | R-32 (GWP:675 | Lower GWP) |