Bard 30WH6
Marvair HVPA24HP
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air27.875"7.875"27.875"13.875"28"8"28"14"38"47.875"74"70.625"16.5"17.125"1.375"2"18"17.875"32.875"28.75"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 Bard 30WH6 Marvair HVPA24HP Difference
Supply Air27.875" x 7.875"28" x 8"+0.125" x +0.125"
Return Air27.875" x 13.875"28" x 14"+0.125" x +0.125"
Distance between Supply and Return18"17.875"-0.125"
Mismatch Bard 30WH6 Marvair HVPA24HP Difference
Unit width38"47.875"+9.875"
Unit height74"70.625"-3.375"
Unit depth16.5"17.125"+0.625"
Unit weight325 lbs420 lbs+95 lbs
Distance from the top to Supply1.375"2"+0.625"
Distance from Return to bottom32.875"28.75"-4.125"