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 MAA1024A "B2" | Bard WH361 | Difference |
|---|---|---|---|
| Supply Air | 19.9" x 7.79" | 27.875" x 7.875" | +7.975" x +0.085" |
| Distance from the top to Supply | 2.21" | 2" | -0.21" |
| Mismatch | Marvair MAA1024A "B2" | Bard WH361 | Difference |
|---|---|---|---|
| Unit width | 38.17" | 37.875" | -0.295" |
| Unit height | 76.62" | 70.5" | -6.12" |
| Unit depth | 22.28" | 16.875" | -5.405" |
| Unit weight | 378 lbs | 380 lbs | +2 lbs |
| Return Air | 19.9" x 11.9" | 27.875" x 13.875" | +7.975" x +1.975" |
| Distance between Supply and Return | 20.6" | 18" | -2.6" |
| Distance from Return to bottom | 34.12" | 28.75" | -5.37" |