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 | VoltAire AT10 | Marvair ECUA18 | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | VoltAire AT10 | Marvair ECUA18 | Difference |
|---|---|---|---|
| Unit width | 16.39" | 18" | +1.61" |
| Unit height | 43.99" | 58.125" | +14.135" |
| Unit depth | 12.3" | 18.063" | +5.763" |
| Unit weight | 94.6 lbs | 247 lbs | +152.4 lbs |
| Supply Air | 13.5" x 11.75" | 14.688" x 12.125" | +1.188" x +0.375" |
| Return Air | 13.5" x 16.62" | 13.25" x 5" | -0.25" x -11.62" |
| Distance from the top to Supply | 2.02" | 20.688" | +18.668" |
| Distance between Supply and Return | 11.6" | 19.062" | +7.462" |
| Distance from Return to bottom | 2" | 1.25" | -0.75" |