Marvair HVEA24
Bard W36AB
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air28"8"28"14"27.88"7.88"27.88"13.88"42.05"38.2"70.59"74.563"17.45"17.125"1.88"2.123"17.93"17.93"28.78"32.75"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 Marvair HVEA24 Bard W36AB Difference
Supply Air28" x 8"27.88" x 7.88"-0.12" x -0.12"
Return Air28" x 14"27.88" x 13.88"-0.12" x -0.12"
Distance from the top to Supply1.88"2.123"+0.243"
Distance between Supply and Return17.93"17.93"0"
Mismatch Marvair HVEA24 Bard W36AB Difference
Unit width42.05"38.2"-3.85"
Unit height70.59"74.563"+3.973"
Unit depth17.45"17.125"-0.325"
Unit weight445 lbs380 lbs-65 lbs
Distance from Return to bottom28.78"32.75"+3.97"