Marvair HVEA24
Bard 30WA6
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air28"8"28"14"27.875"7.875"27.875"13.875"42.05"38"70.59"74"17.45"16.5"1.88"1.375"17.93"18"28.78"32.875"Supply AirReturn AirSupply AirReturn Air
OPENING MATCH

Your openings match up but double check the cabinet surroundings. Over time equipment coils have gotten larger for better efficiency and cabinet dimensions have changed.

Match Marvair HVEA24 Bard 30WA6 Difference
Supply Air28" x 8"27.875" x 7.875"-0.125" x -0.125"
Return Air28" x 14"27.875" x 13.875"-0.125" x -0.125"
Distance between Supply and Return17.93"18"+0.07"
Mismatch Marvair HVEA24 Bard 30WA6 Difference
Unit width42.05"38"-4.05"
Unit height70.59"74"+3.41"
Unit depth17.45"16.5"-0.95"
Unit weight445 lbs375 lbs-70 lbs
Distance from the top to Supply1.88"1.375"-0.505"
Distance from Return to bottom28.78"32.875"+4.095"