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202771119

Model #

12HF

Whole House Furnace Mount Flow Through Humidifier

$19000
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  • Create a healthier environment with a whole house humidifier
  • Product sold without installation or permitting
  • Equipment should be sized/installed by a qualified professional
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Product Details

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 on HVAC Installation
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From the Manufacturer

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Specifications

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Questions & Answers

51Questions
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Q:Does this humidifiers kit come with 1/4"copper tubing and a saddleback piercing valve to tap off cold water side on hot water tank
by|Oct 30, 2022
1 Answer
Answer This Question

A:  The Hamilton Whole House Humidifier does not come with 1/4" copper tubing and a saddleback piercing valve. Questions? Call Customer Service at Hamilton Home Products 1-800-879-0123

by|Dec 28, 2022
    1 found this answer helpful
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    Q:Is there room on a standard outlet to plug in 2 ac adapters to power 2 units?
    by|Sep 24, 2022
    1 Answer
    Answer This Question

    A:  The Hamilton Whole House Humidifier is equipped with an HEC025 transformer plug that fits standard 120 volt outlets. However the plug is longer on one side. If using two humidifiers for dual furnace applications one plug would most likely need to be rotated 180 degrees to fit the outlet. You may also want to contact an electrician to verify the circuit can handle both units.

    by|Sep 24, 2022
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      Q:How do you connect the water line if you only have plastic pipe? Also, how many gallons per day does it use? I'm on a well.
      by|Jan 11, 2022
      1 Answer
      Answer This Question

      A:  with plastic water line, there will be a need to modify the installation by putting in a tee with a 1/4 in. shut off, for the water input to the solenoid valve. The 12HF uses up to 80% less water than most flow through humidifiers. You can expect the humidifier to use up to approximately 5 gallons of water per day for most homes based on the operation of 10 hours per day as the unit only operates during the call for heat. This was verified by Veritec Consulting and ETL labs.

      by|Jan 17, 2023
        1 found this answer helpful
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        Q:A few days ago, I received this humidifier. The humidistat in that package no shows humidity percentage, only drops, not like the picture in the installation guide. I want to know the drops what?s mean and how to know the humidity percentage.
        by|Dec 7, 2021
        1 Answer
        Answer This Question

        A:  Judy, a good humidity for health and comfort is typically somewhere in the range of 30-45% humidity. This range is at and slightly beyond the 2 drop location on the humidistat.

        by|Dec 7, 2021
          Showing 1-4 of 51
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          Customer Reviews

          4 out of 5
          (88)
          • 4
            out of 88 reviews
          • 88% recommend this product
          Filter by:
          Showing 1-10 of 88 reviews
          I installed this unit in a hall way utility closet thus a tight fit. The air return is under a wo...
          I installed this unit in a hall way utility closet thus a tight fit. The air return is under a wood deck so the flex duct needs to be longer than the supplied one. A hole was cut to accommodate the duct. The drain was routed to a sewer vent PVC vent pipe under the deck. A 1/2 inch brass nipple to threaded fitting was installed with a bit of thread paste after drilling a hole in PVC. I really don't like the pipe piercing fittings. I soldered a TEE in a cold water pipe with a ball valve. Now the system can be securely shut off and less risk of leakage. The controller system is inadequate as whether it is set on HIGH or LOW heat, the humidifier will not match the start or end of the heat cycle. Thus there is lots of water wastage and less humidifying. The solution is to activate the humidifier with the thermostat call for heat or manual fan run. I bought a pair of relays for $15 (mxuteuk 2pcs JQX-13FL AC 24V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum). Now I can run the humidifier by turning on manual fan or it runs with auto heat cycle and matches the cycle exactly. All the wiring comes off the thermostat control terminals in the heater, these are low voltage terminals. Don't make my mistake of using the HUM terminal which is 120 volt, that fried the controller and was $47 to replace. We started with indoor humidity of 23%, With running on heat cycle only we reached 28%. By running on auto fan for several hours the humidity reached 30%. I hope to get to 35% in a few more days. I'll try to include pictures and wiring diagram with this review. During the summer the humidifier won't run with COOL cycle as the relays aren't connected to that terminal.
          by
            • Recommended
            2 found this review helpful
            This humidifier consistently maintains 40-42% humidity on a gas furnace, with outside temps about...
            This humidifier consistently maintains 40-42% humidity on a gas furnace, with outside temps about 40 degrees. Install was not hard even with cutting into the ductwork. The 2 screws for the diffuser were the wrong size (#8 vs. #6) but had some on hand. The wire from the controller to the valve needs to be longer. It's only long enough if your supply and return access is on the same side of the furnace. Last, I would recommend a stiffer 6" flex duct. The 3' piece that was included wasn't long enough for mine, and the one I bought was sturdy enough not to need any added support or clamps. Overall I'm happy with the 12HF humidifier. I dropped the thermostat 2 degrees since it actually feels warmer in the house and the nose/sinuses feel better.
            by
              • Recommended
              5 found this review helpful
              Inadequate for desired humidity
              Product was received as advertised and installed per directions with no issues. I am going on my second season of use however I have been unable to achieve a desireable humidity level of 39-40%. I have a 1600 sq ft home and with outdoor temperature in the upper teens to mid 20's the indoor humidity level will not exceed 33%. I believe this unit is helping with humidity but the unit capacity is over rated and did not meet my expectations.
              by
                2 found this review helpful
                Took a while to install plus a couple hours troubleshooting... make sure your water pressure is ...
                Took a while to install plus a couple hours troubleshooting... make sure your water pressure is not too high as the relay can't open the valve, the directions say psi over 90 is too much I think it's a lower threshold, I switched to the saddle valve and it seemed to work better. All in all it seems to be working well, humidity is definitely up in the house.
                by
                • Verified Purchase
                • Recommended
                3 found this review helpful
                Replaced a 20 year old foam roller unit. This thing really does the job. Easy to install. I re...
                Replaced a 20 year old foam roller unit. This thing really does the job. Easy to install. I really like the water saving feature. You can hear the valve cycle on and off due to the provided timer relay (make sure to install it as shown between the valve and ac voltage supply). Note: use the 24vac from your furnace. The provided 24vac plug in supply has too few amps to properly energize the valve at times without buzzing, which is valve solenoid chatter. Finding a larger 24vac transformer is easy if your furnace cannot supply it.
                by
                • Verified Purchase
                • Recommended
                6 found this review helpful
                Purchased this item online local Home Depot does not carry...
                Purchased this item online local Home Depot does not carry in stock.Installed this humidifier myself in about 3 hours following directions.I have 40 years in multiple trades and would not recommend self install unless mechanically inclined. Works great with adjustable humidistat.Great Product.
                by
                • Verified Purchase
                6 found this review helpful
                Thank you, Timely delivery, easy assembly and mounting instructions.
                Thank you, Timely delivery, easy assembly and mounting instructions.
                by
                • Verified Purchase
                • Recommended
                2 found this review helpful
                100% satisfied
                Performs exactly as advertised, very quiet and does a great job moisturizing the air in my little 672 sq. ft. home. No significant increase in my water usage either.
                by
                • DIY
                • Verified Purchase
                • Recommended
                5 found this review helpful
                Works Great but the installation may need enhancements
                This humidifier would be rated 5 stars for an application that requires no adjustments to the supplied installation plans. My basic, forced air furnace is installed so that only one side of each vertical plenum is accessible. It was necessary to install the humidifier on the wide side of the hot air plenum and then use rigid 6” round duct work to feed the unit’s output into the horizontal cold air plenum. This unit is designed to fit the flexible duct that comes with it. The output port of the unit is much smaller than the female side of a 6” round duct so an adapter had to be fabricated. By hammering out the crimps of the male side of a 6” elbow, it then fit nice and snug onto the supplied plastic starter collar. During testing, the pulse module never came on in the normal setting. The “LO” setting worked but would continue to pulse water for 15 minutes after the furnace turned off. An outlet was installed on the side of the furnace for the unit’s AC adapter. This outlet was wired to toggle on and off with the furnace fan. I was then able to leave the pulse module setting on low with the unit automatically shutting down when the furnace fan turned off. The unit works perfectly now, but I feel installation enhancements such as this would be beyond the ability of many home owners. The media pads are not carried at Home Depot and must be ordered on-line. One pad should last an entire heating season. In summary, this type of humidifier, with a flow through water system, is the only kind to use. I’ve had plenty of bad experiences with the rotating drum, water bath, calcium clogged nightmare types to never go back.
                by
                • DIY
                • Recommended
                22 found this review helpful
                Great Product. I mounted it to the flex duct return.
                This is a great product. I read the reviews online and discovered the Honeywell model has issues, so I went with Hamilton. Very pleased and zero regrets. I have a 1,600 sq. ft. house and this unit can make the windows drip with condensation (I actually have to turn it down). No moving parts (except the water solenoid), no slimy drum to clean out, and best of all no humidifiers to refill. See the pictures, attached. The directions say it can be mounted to either the return or supply ducts at the furnace. I have a flex duct return, so I wanted the main body of the humidifier mounted to the solid surface of the supply duct. The directions did not describe this scenario, so I improvised. I hope the attached pictures and drawings help someone else in the same boat I was. I did have to install a 110VAC outlet for the power. However, I already had an existing drain (for AC condensation), for the drain tube. The unit works beautifully and no more dry skin. Great job Hamilton!!!
                by
                • DIY
                • Recommended
                27 found this review helpful
                Showing 1-10 of 88 reviews

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