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 | Bard WA251 | Marvair HVPA24HP | Difference |
|---|---|---|---|
| Unit height | 70.5" | 70.625" | +0.125" |
| Unit depth | 16.875" | 17.125" | +0.25" |
| Supply Air | 19.875" x 7.875" | 28" x 8" | +8.125" x +0.125" |
| Distance from the top to Supply | 2" | 2" | 0" |
| Mismatch | Bard WA251 | Marvair HVPA24HP | Difference |
|---|---|---|---|
| Unit width | 32.875" | 47.875" | +15" |
| Unit weight | 300 lbs | 420 lbs | +120 lbs |
| Return Air | 19.875" x 11.875" | 28" x 14" | +8.125" x +2.125" |
| Distance between Supply and Return | 20.75" | 17.875" | -2.875" |
| Distance from Return to bottom | 28" | 28.75" | +0.75" |