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Honeywell TrueSTEAM Humidifiers

The optimal range for annual indoor relative humidity (RH) is between 35 and 55 percent. Unlike portable humidifiers that are only effective in the rooms they are located in, or other whole-house humidifiers that only deliver moisture when your heating equipment is running, Honeywell's TrueSTEAM Humidification System is truly different.

  • Provides Humidity Independent of Furnace Operation
  • Reverse-Osmosis Water Filtration
  • Use Up to 70% Less Water Than Tradition Flow-Through Units
  • Takes Less Than Five Minutes to Install
  • Mounts Directly to Duct or Remotely Up to 20 Feet Away into Tight-Fitting or Unconditioned Air Spaces
  • Easy Maintenance
  • Mount directly to the duct or remotely up to 20 feet away into tight-fitting or unconditioned air spaces


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TrueSTEAM Humidifier

TrueSTEAM Humidifier

Model IDModel NameCapacity
Gal / Day
VoltageMountingTemp
Range
Plenum
Opening
HxWxD
664HM506DG1156120Duct or Remote34 - 1041-3/419x11.25x9
665HM509DG1159120Duct or Remote34 - 1041-3/419x11.25x9
666HM512DG11512120Duct or Remote34 - 1041-3/419x11.25x9
  • 5-year limited warranty on all functional parts