Legacy Series 24V Bypass Humidifier with Manual Control

GeneralAire 1042LH

SKU: 1042LH Category:


Water is dispersed evenly throughout a Vapor Pad® inside the 1042LH. A portion of the heated air from the furnace passes through the water-soaked pad where it absorbs additional moisture and then returns for distribution throughout your home. Newly-moistened and healthier air is provided to you and your family.
  • For Home Sizes up to 2,800 Sq. Ft.
  • 19 GPD
  • 24V
  • Shut-Off Damper
  • 13 lbs.
  • Included:  MHX3 Manual-Control Duct Mount Humidistat.
  • Replacement Vapor Pad® number 990-13 (GFI #7002). Replace 1-2 times per season.
  • 5 Year Warranty.
Included in the GeneralAire 1042LH Box:


  • Humidifier
  • Humidistat
  • Installation Instructions
  • Vapor Pad®
  • Parts Kit
  • Drain Hose
  • Transformer
  • Metal Distributor Tube
  • Damper
  • 15’ 5/8” Drain Hose
  • Drain Pan
  • Solenoid Valve


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  • TypeBypass
  • Maximum Coverage Area2800 Square Feet
  • Water Capacity (GDP)19 Gallons/Day
  • Electrical Requirements24 Volts
  • Gallons per Day19 Gallons
  • Bypass Duct Diameter6 Inches
  • Plenum Opening Size10.25x9.5 Inches
  • Width15 Inches
  • Height11.5 Inches

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