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Discontinued Product

Trane Grey Fan Powered Furnace Humidifier - THUMD500APA00B

Quick Specs
  • Output (per day) : 18 Gallons
  • Coverage : 4200 Sq. Ft.
  • Height (inches) : 18.3
  • Width (inches) : 16
  • Depth (inches) : 11
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  • Product Overview-

    Key Features

    • Delivers Up To 18 Gallons Per Day
    • Covers Up To 4200 Sq. Ft.
    • Automatic Humidifier Control With O.D. Sensor
    • Front Cover Access
    • Aluminum Pad Treated With Ceramic Clay
    • Brass Solenoid Valve With Stainless Steel Valve Seat
    • UV Resistant Cabinet And Scale Control Insert
    • Grey Finish
    • Requires Site Summary

    Trane Grey Fan Powered Furnace Humidifier, Model THUMD500APA00B

    When it comes to the comfort of your indoor air, temperature isn’t the only thing to consider. For many families, a whole home humidifier not only provides the right amount of moisture for total comfort, it can also help to keep irritating airborne particles from circulating as easily.


    • Flow Through Fan Powered Humidifier
    • High Performance Humidifier Delivers up to 18 Gallons per Day
    • Automatic Humidifier Control with O.D. Sensor for up to 50% more Humidity
    • Front Cover Access for easy replacement of humidifier pad
    • Aluminum Humidifier Pad Treated with Ceramic Clay for Enhanced Pad Performance
    • Reliable Brass Solenoid Valve w/Stainless Steel Valve Seat
    • UV Resistant Cabinet and Scale Control Insert
    • Saddle Valve
    • Polyslate Gray Housing matches Furnace Cabinet Color
    • Decorative nameplate
    • 120V Power Line Cord


    • Type: Fan Powered, Auto Control
    • Use With: All Furnace Models
    • Home Size: Up to 4200 sq.ft.
    • Rate Gallons / Day: 18
    • Water Feed Rate (Gal/hr): 6
    • Airflow: Fan
    • Water Flow: Drain
    • 120 V Line Cord: Yes
    • Min. Brch. Cir. Ampacity 3: 10
    • Low Voltage 24V 60 Hz
      • Amps: .1
      • VA(Max): 2.4
      • Watts: 2.4
    • Connections
      • Water (Potable) inlet: 1/4-in Copper Tubing
      • Water Drain: 1/2-in plastic hose
    • Standard Equipment (included)
      • Humidistat: Automatic Humidifier Control 24 V
      • Water Valve: Solenoid, 24 VAC
      • Fan Motor: 1/70 HP 120 VAC
      • Relay: SPST 24 VAC
      • Saddle Valve: Included

    Approximate Dimensions:

    • Height: 18.3"
    • Width: 15.8"
    • Depth: 11"

    Approximate Weight:

    • Unit: 17 lbs
    • Shipping: 20 lbs

    Warranty Information:

    • Manufacturer Warranty (authorized online retailer): Five-Year Limited Warranty
    California customers: Proposition 65 WARNING
  • Specifications+
  • Guides & Documents+
  • From The Manufacturer+


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  • Easy purchase. Abt has the best price I could find online for the item I was purchasing. They kept in contact throughout the process. Item was delivered on time and was trackable, so I knew when it was being delivered. I will definitely do business with them again, and I highly recommend them.
    April 19, 2020 - Lynne R.
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