Marvair MAA1024A "B2"
Bard W30G1
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air19.9"7.79"19.9"11.9"27.88"7.88"27.88"13.88"38.17"38"76.62"81.63"22.28"24.25"2.21"2.37"20.6"30"34.12"27.5"Supply AirReturn AirSupply AirReturn Air
MISMATCH

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 W30G1 Difference
Unit width38.17"38"-0.17"
Supply Air19.9" x 7.79"27.88" x 7.88"+7.98" x +0.09"
Distance from the top to Supply2.21"2.37"+0.16"
Mismatch Marvair MAA1024A "B2" Bard W30G1 Difference
Unit height76.62"81.63"+5.01"
Unit depth22.28"24.25"+1.97"
Unit weight378 lbs530 lbs+152 lbs
Return Air19.9" x 11.9"27.88" x 13.88"+7.98" x +1.98"
Distance between Supply and Return20.6"30"+9.4"
Distance from Return to bottom34.12"27.5"-6.62"