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 | Marvair ECUA18 | Bard W17A1 | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | Marvair ECUA18 | Bard W17A1 | Difference |
|---|---|---|---|
| Unit width | 18" | 33.3" | +15.3" |
| Unit height | 58.125" | 70.563" | +12.438" |
| Unit depth | 18.063" | 17.125" | -0.938" |
| Unit weight | 247 lbs | 335 lbs | +88 lbs |
| Supply Air | 14.688" x 12.125" | 19.88" x 7.88" | +5.192" x -4.245" |
| Return Air | 13.25" x 5" | 19.88" x 11.88" | +6.63" x +6.88" |
| Distance from the top to Supply | 20.688" | 2.183" | -18.505" |
| Distance between Supply and Return | 19.062" | 20.56" | +1.498" |
| Distance from Return to bottom | 1.25" | 28.06" | +26.81" |