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 30WH1 | Difference |
|---|---|---|---|
| Unit width | 38.17" | 38.25" | +0.08" |
| Supply Air | 19.9" x 7.79" | 28" x 8" | +8.1" x +0.21" |
| Mismatch | Marvair MAA1024A "B2" | Bard 30WH1 | Difference |
|---|---|---|---|
| Unit height | 76.62" | 74" | -2.62" |
| Unit depth | 22.28" | 15.25" | -7.03" |
| Unit weight | 378 lbs | 395 lbs | +17 lbs |
| Return Air | 19.9" x 11.9" | 28" x 14" | +8.1" x +2.1" |
| Distance from the top to Supply | 2.21" | 1.375" | -0.835" |
| Distance between Supply and Return | 20.6" | 18" | -2.6" |
| Distance from Return to bottom | 34.12" | 32.625" | -1.495" |