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 | Bard W36G3 | Bard 18WH1 | Difference |
|---|---|---|---|
| Supply Air | 27.88" x 7.88" | 20" x 8" | -7.88" x +0.12" |
| Mismatch | Bard W36G3 | Bard 18WH1 | Difference |
|---|---|---|---|
| Unit width | 38" | 32.25" | -5.75" |
| Unit height | 81.63" | 67.5" | -14.13" |
| Unit depth | 24.25" | 13.5" | -10.75" |
| Unit weight | 530 lbs | 315 lbs | -215 lbs |
| Return Air | 27.88" x 13.88" | 20" x 12" | -7.88" x -1.88" |
| Distance from the top to Supply | 2.37" | 1.25" | -1.12" |
| Distance between Supply and Return | 30" | 20.5" | -9.5" |
| Distance from Return to bottom | 27.5" | 25.75" | -1.75" |