These units don’t appear to have much in common. If you’re replacing one with the other, you’ll need to make some modifications to wall, unit or something in between with a plate or adapter curb.
| Match | Westinghouse UB022K | Bard WA181 | Difference |
|---|---|---|---|
| Supply Air | 19.25" x 7.75" | 19.875" x 7.875" | +0.625" x +0.125" |
| Mismatch | Westinghouse UB022K | Bard WA181 | Difference |
|---|---|---|---|
| Unit width | 31.125" | 32.875" | +1.75" |
| Unit height | 72" | 70.5" | -1.5" |
| Unit depth | 13.25" | 16.875" | +3.625" |
| Unit weight | 350 lbs | 300 lbs | -50 lbs |
| Return Air | 19.25" x 12.75" | 19.875" x 11.875" | +0.625" x -0.875" |
| Distance from the top to Supply | 1.25" | 2" | +0.75" |
| Distance between Supply and Return | 19.75" | 20.75" | +1" |
| Distance from Return to bottom | 30.5" | 28" | -2.5" |