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Products Residential Whole-House Indoor Air Quality Solutions and Oil Filter Products

Model 5500 Steam Humidifier

GFI#: 5580
For Homes Up To 5500 Square Feet

Diagrams and Brochures


Replace the Cylinder a minimum of once per year; at the start of the heating season.


  • Type:  electrode steam
  • Gallons Per Day:  115V = 15;  230V = 28.5
  • Power:  115 /  230V (internal switch selector)
  • Control:  GFX4; controls the furnace blower motor (inside installation kit)
  • Dimensions (Inches):  21 H x 14 W x 8.25 D
  • Weight (pounds):  16
  • For home sizes up to 5500 square feet
  • Replacement Cylinder:  Model 55 (GFI #7746) for both regular & low conductivity
  • Pallet quantity:  16
  • Ground connection:  screw
  • Conductivity range:  125 to 1250 µs/cm
  • Water fill connection:  1/4" O.D. Compression adapter to 3/4" FPS
  • Input water type:  potable water (no demineralized or softened water)
  • Drain water temperature: <140°F / <60°C

Click Here to use our Online Humidity Calculator for Sizing Humidifiers


  • One unit for both 115V & 230V installations (via internal switch)
  • One cylinder for both regular and low water conductivity
  • Spark plug style wire connectors for easy cylinder replacement
  • Enhanced, easy-to-read control module with 16 status codes and activity icons that provide real-time monitoring
  • Single captive-screw cover release for easy access
    • Screw permanently affixed to cover to prevent dropping, losing
  • Water tempering for safety
  • Includes installation kit and heavy duty, pre-drilled metal mounting straps that allow for installation to wall studs (16")
  • Includes a GFX4 Automatic Humidistat (controls the furnace blower motor)

GeneralAire® offers a wide variety of residential whole-house indoor air quality solutions using the latest in indoor air technology.

Installed in your home's HVAC system by a qualified HVAC contractor, GeneralAire® IAQ products protect you and your family by ensuring clean, healthy and comfortable indoor air quality throughout your home.

Air Filter Illustration
  • Professional Installation Only
  • Not Sold In Retail Outlets
  • Sold Only by Approved Wholesalers
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