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 W18AF | Marvair HVEA24 | Difference |
|---|---|---|---|
| Supply Air | 19.88" x 7.88" | 28" x 8" | +8.12" x +0.12" |
| Mismatch | Bard W18AF | Marvair HVEA24 | Difference |
|---|---|---|---|
| Unit width | 33.3" | 42.05" | +8.75" |
| Unit height | 74.56" | 70.59" | -3.97" |
| Unit depth | 17.13" | 17.45" | +0.32" |
| Unit weight | 329 lbs | 445 lbs | +116 lbs |
| Return Air | 19.88" x 11.88" | 28" x 14" | +8.12" x +2.12" |
| Distance from the top to Supply | 2.18" | 1.88" | -0.3" |
| Distance between Supply and Return | 20.56" | 17.93" | -2.63" |
| Distance from Return to bottom | 32.06" | 28.78" | -3.28" |