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 | nVent Hoffman T4308 | Bard WA121 | Difference |
|---|---|---|---|
| Return Air | 13.94" x 10.23" | 17" x 10" | +3.06" x -0.23" |
| Mismatch | nVent Hoffman T4308 | Bard WA121 | Difference |
|---|---|---|---|
| Unit width | 15.75" | 30.125" | +14.375" |
| Unit height | 43" | 46" | +3" |
| Unit depth | 10.9" | 14.625" | +3.725" |
| Unit weight | 125 lbs | 155 lbs | +30 lbs |
| Supply Air | 13.94" x 15.51" | 17" x 5" | +3.06" x -10.51" |
| Distance from the top to Supply | 0.56" | 2.25" | +1.69" |
| Distance between Supply and Return | 16.07" | 5" | -11.07" |
| Distance from Return to bottom | 0.63" | 23.75" | +23.12" |