We've updated your selection

    Hamilton   Whole House Furnace Mount Flow Through Humidifier

    Set your store for local inventory & pick up options.
    • Description
      • Create a healthier environment with a whole house humidifier
      • Product sold without installation or permitting
      • Equipment should be sized/installed by a qualified professional

      Create a healthier environment and Increase the comfort of your entire home by installing the 12HF whole house furnace-mounted flow through humidifier. Having the proper amount of humidity in your home can help reduce respiratory infections, control static electricity, prevent house plants from wilting, and stop wood from drying out and cracking. You may also save money on your utility bill, as you can lower your thermostat and feel just as comfortable since humidified air feels warmer.

      • Uses up to 80% less water than other brands of whole house flow through humidifiers which will save you money on water and sewer charges from your municipality
      • Output of up to 13 Gal. per day for well insulated homes up to 3,000 sq. ft.
      • Lightweight housing design makes the humidifier easy to install on either the warm air supply or return air duct of any forced-air furnace
      • Everything needed for most typical installations is included
      • Evaporator pad is enclosed in plastic frame that ensures water flows through proper path for evaporation and makes it easy to replace
      • 24 VAC transformer simplifies installation as it plugs into a standard outlet and no hardwiring is required
      • Designed for use with all forced-air heating applications
      • Cut-out areas required for installation:humidifier housing: 8-1/4 in. H x 9-1/4 in. W
      • By-pass duct: 6 in. Dia
      • Humidistat: 3-1/2 in. H x 2-3/8 in. W
      • Equipment should be sized, selected and installed by a qualified professional to ensure proper installation, safe operation, adherence to federal, state and local codes and for valid warranty; see installation guide for more details
      • Recommended for professional purchase only
      • Click here for more information
      • Click here for more information on Electronic Recycling Programs
      Info & Guides
    • Specifications
      Air Treatment Product Type :
      Whole House Humidifier
      Color Family :
      Control Type :
      Floor drain required :
      Humidifier Features :
      Automatic Moisture Control
      Humidifier Tank Capacity (Gallons) :
      Humidifier style :
      Bypass flow-through
      Included Items :
      Drain Hose,Installation Kit
      Installation kit included :
      Maximum Room Size (cu. ft.) :
      Product Depth (in.) :
      Product Height (in.) :
      Product Weight (lb.) :
      Product Width (in.) :
      Returnable :
      Room Size (sq. ft.) :
      Whole House
      Voltage (volts) :
      Water Filter Replacement Model# :
    • Reviews

      Ratings & Reviews

      93% of customers recommend this product
      Out of 5:
      Customer Images (9)
      • Great Humidifier for the Price and Everything Needed for a Typical Installation is Included
      • December 14, 2011
      • Recommended Product

      I have owned a 12HF for several years and have had good luck with my unit and recommended it to a neighbor that had mentioned their house gets dry in the winter. I did my own installation, so I offered to help them once they received their humidifier and a little over 2 hours later they were set. What I like about this unit compared to other brands is that it comes with everything needed for typical applications in one box and it has a plug-in transformer so no hardwiring is involved. Plus, it uses a lot less water than most other brands out there; the water valve on most flow through style units is completely open when there is a call for humidity, but this unit adds water in pulsed intervals. Lastly, maintenance is very low. I just put in a new evaporator pad at the beginning of each season and wipe out the shallow drain pan area to remove any mineral build-up.

      • DIY


      Ohio, USA
      35 to 44, Male
      74 out of 74 people found this helpful
      more details...
      By: DIYGUY614
    • Shipping & Delivery Options

      Shipping options for [zipcode] (change)

      Arrival dates and shipping costs shown above are estimates.See exact dates and costs and select your preferred shipping option during checkout.


      Express Delivery from Store is available for items currently in stock at a The Home Depot store within a delivery ZIP code. A driver from a local store will deliver the item(s).

      Outside Delivery:  Service includes delivery to area outside the house which is accessible by delivery equipment.

      Threshold Delivery: Service includes delivery across your first doorway or threshold (ie. garage, backyard, deck, first room of the home).

    This item cannot be shipped to the following state(s): AK,GU,HI,PR,VI