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 AVPA36AC | Bard WH421 | Difference |
|---|---|---|---|
| Unit width | 41.87" | 42.075" | +0.205" |
| Mismatch | Marvair AVPA36AC | Bard WH421 | Difference |
|---|---|---|---|
| Unit height | 70.59" | 84.875" | +14.285" |
| Unit depth | 17.13" | 22.432" | +5.302" |
| Unit weight | 420 lbs | 510 lbs | +90 lbs |
| Supply Air | 28" x 8" | 29.88" x 9.88" | +1.88" x +1.88" |
| Return Air | 28" x 14" | 29.88" x 15.88" | +1.88" x +1.88" |
| Distance from the top to Supply | 1.88" | 2.175" | +0.295" |
| Distance between Supply and Return | 17.93" | 30" | +12.07" |
| Distance from Return to bottom | 28.78" | 26.94" | -1.84" |