General Air Humidifier Installed


Model No: 1042


  • Model 1042LH accommodates up to 2800 square feet.
  • Cover is UV stable.
  • Stainless steel distributor tube allows for either cold or hot water supply.
  • MHX3 manual control humidistat is included.
  • A long-standing model; considered the “work horse” of humidifiers.


Installing a GeneralAire® Whole House Humidifier can reduce allergy and asthma symptoms, minimize risk of infection, protect valuables (such as furniture, woodwork and musical instruments) and save you money.

5 Years Limited Warranty


  • Type: flow-through
  • Gallons per day: 17 (based on 120° F plenum temperature)
  • Dimensions (inches): 14 H x 15 1/8 W x 9 D
  • Weight (pounds): 13
  • Replacement Vapor Pad® number 990-13 (GFI #7002)
    • Replace 1-2 times per season
  • For home sizes up to 2,800 square feet
  • Installation: warm air / return air plenum / right of left side
  • Plenum opening (inches): 9 1/2 H x 13 5/8 W
  • Bypass opening (inches): 6
  • Pallet quantity (units): 30
  • Included: MHX3C manual-control duct mount humidistat
  • Power (volts): 24

Product Literature

Click to Download:

Installation Information

Subject to inspection*

All Orders Subject to Confirmation by Metropolitan:

Upon receipt of your order or booking inquiry, a member of our service team will contact you to arrange a (virtual) site inspection, and provide an order confirmation, and provide you options for installation. All orders are subject to confirmation or cancellation by Metropolitan Heating & Air Conditioning Ltd. Financing Orders subject to Approved Credit.


  • All in the box everything you need
  • Sharkbite ball wells (more reliable)


  • Water line within 8feet near furnace
  • Access to a Drain