Bard W18HA
Marvair HVPA30HP
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air19.88"7.88"19.88"11.88"30"10"30"16"33.3"42"74.563"84.5"17.125"22.688"2.183"1.813"20.56"30"32.06"26.687"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 Bard W18HA Marvair HVPA30HP Difference
No matches in measurement - - -
Mismatch Bard W18HA Marvair HVPA30HP Difference
Unit width33.3"42"+8.7"
Unit height74.563"84.5"+9.937"
Unit depth17.125"22.688"+5.563"
Unit weight335 lbs540 lbs+205 lbs
Supply Air19.88" x 7.88"30" x 10"+10.12" x +2.12"
Return Air19.88" x 11.88"30" x 16"+10.12" x +4.12"
Distance from the top to Supply2.183"1.813"-0.37"
Distance between Supply and Return20.56"30"+9.44"
Distance from Return to bottom32.06"26.687"-5.373"