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 W36AY | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | Marvair ECUA18 | Bard W36AY | Difference |
|---|---|---|---|
| Unit width | 18" | 38.2" | +20.2" |
| Unit height | 58.125" | 74.563" | +16.438" |
| Unit depth | 18.063" | 17.125" | -0.938" |
| Unit weight | 247 lbs | 385 lbs | +138 lbs |
| Supply Air | 14.688" x 12.125" | 27.88" x 7.88" | +13.192" x -4.245" |
| Return Air | 13.25" x 5" | 27.88" x 13.88" | +14.63" x +8.88" |
| Distance from the top to Supply | 20.688" | 2.123" | -18.565" |
| Distance between Supply and Return | 19.062" | 17.93" | -1.132" |
| Distance from Return to bottom | 1.25" | 32.75" | +31.5" |