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 ECUA12 | Bard W18A2 | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | Marvair ECUA12 | Bard W18A2 | Difference |
|---|---|---|---|
| Unit width | 18.25" | 33.3" | +15.05" |
| Unit height | 58" | 70.563" | +12.563" |
| Unit depth | 12" | 17.125" | +5.125" |
| Unit weight | 160 lbs | 325 lbs | +165 lbs |
| Supply Air | 14.375" x 11.75" | 19.88" x 7.88" | +5.505" x -3.87" |
| Return Air | 13.25" x 5" | 19.88" x 11.88" | +6.63" x +6.88" |
| Distance from the top to Supply | 20.875" | 2.183" | -18.692" |
| Distance between Supply and Return | 19.25" | 20.56" | +1.31" |
| Distance from Return to bottom | 1.125" | 28.06" | +26.935" |