Model # H8908B

Internet #100476731

Store SKU #623194

Honeywell Humidistat Humidifier Control
0085267201612

Honeywell

Humidistat Humidifier Control

$2697 /each
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Frequently Bought Together

Product Overview

The Honeywell Humidistat Humidifier Control provides low-voltage control for humidifiers in central heating and air conditioning systems. It can be mounted in the duct or on a wall surface. It features 12 in. of thin, moisture-sensitive nylon ribbon wound around 3 bobbins to provide optimum control and reliable operation under changing ambient. The control has a snap-acting, dust-proof switch.
  • Provides low-voltage control for humidifiers in central heating and air conditioning systems
  • 12 in. of thin, moisture-sensitive nylon ribbon wound around 3 bobbins to provide optimum control and reliable operation under changing ambient
  • Can be mounted in duct or on wall surface
  • Positive on and off settings
  • Snap-acting, dust-proof switch
  • Click here for more information on Electronic Recycling Programs

Product Overview

The Honeywell Humidistat Humidifier Control provides low-voltage control for humidifiers in central heating and air conditioning systems. It can be mounted in the duct or on a wall surface. It features 12 in. of thin, moisture-sensitive nylon ribbon wound around 3 bobbins to provide optimum control and reliable operation under changing ambient. The control has a snap-acting, dust-proof switch.

  • Provides low-voltage control for humidifiers in central heating and air conditioning systems
  • 12 in. of thin, moisture-sensitive nylon ribbon wound around 3 bobbins to provide optimum control and reliable operation under changing ambient
  • Can be mounted in duct or on wall surface
  • Positive on and off settings
  • Snap-acting, dust-proof switch
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
3.75
Product Width (in.)
3.5

Details

Accessory type
Humidistat (Humidifier Control)
Heating Product Type
Accessory
Heating Technology Type
Forced Air
Product Weight (lb.)
.5lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
1 year limited warranty

Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
3.75
Product Width (in.)
3.5

Details

Accessory type
Humidistat (Humidifier Control)
Heating Product Type
Accessory
Heating Technology Type
Forced Air
Product Weight (lb.)
.5lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
1 year limited warranty

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Customer Questions & Answers

does this humidstat work with my central air

Asked by: Anonymous
Order the DEHUMIDISTAT model "H8908C/D Dehumidistat" if you want to reduce HIGH humidity and the HUMIDISTAT model "H8908A/B Humidistat" if you want to increase LOW humidity
Answered by: Steve
Date published: 2017-07-03

Will this work on Carrier AC/

Asked by: Anonymous
It works on any system, it has nothing to do with the a/c or heat it is its own system that coordinates with the heat system when it is running. There is no need for it in a/c mode, nor will it operate independently to add humidity to a home, it is dependent on the furnace fan.
Answered by: john
Date published: 2016-11-22

can this be used as a replacement for h1008a humidistat

Asked by: Anonymous
I think they all work the same, it is basically just an off/on switch to control humidity levels. 2 wires connect to it and the fan, when furnace fan operates so does the humidifier if it is set to add humidity, otherwise if there is enough in the air already it will not turn the humidifier on.
Answered by: john
Date published: 2015-09-20

can I just plug my dehumidifier into this unit

does the humidistat plug into a regular outlet (receptacle)
Asked by: gov1
Dear Valued Home Depot Customer, We reached out to MFG for more information and below is their response. “ The Honeywell H8908B is rated for 24 volts AC and should not be plugged in to any line voltage outlet. In addition the H8908B is for use with humidifers, not de humidifiers. Honeywell Customer Care" Thanks The Home Depot User Generated Content Team
Answered by: THDCustomerService
Date published: 2015-11-23
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Customer Reviews

Humidistat Humidifier Control is rated 3.5 out of 5 by 12.
Rated 4 out of 5 by from Works Great Install was pretty painless. Like other reviews do not believe the dial. Humidity gauge is needed. Once you get the right setting for the humidity you want. It keeps it there. Much better than the fancier control I had on it before. Would recommend .
Date published: 2017-03-21
Rated 2 out of 5 by from Works ok. Range printed on label not actual humidity. Recommend... Works ok. Range printed on label not actual humidity. Recommend getting a calibrated humidity meter to go with it.
Date published: 2017-03-14
Rated 5 out of 5 by from So easy to install ... So easy to install
Date published: 2017-04-22
Rated 4 out of 5 by from -=*MUST CALIBRATE HUMIDISTAT*=- The 8908B humidistat needs to be calibrated correctly. You might notice that when you turn the knob to set the desired level that it "clicks" on and off around the 10% mark or at least at a point that is nowhere close to the actual humidity level inside your home. The clicking is the point at which the humidistat thinks that the humidity is inside your home. You will need a secondary hygrometer to figure out the exact level your house is at now. Make sure you buy a semi decent one that will itself be calibrated correctly. After calling honeywell they told me there was no way to calibrate the h8908b so I needed to figure out a way myself. To calibrate, take the humidistat of the wall or duct that you installed it on. On the back you will see a small white plastic bolt. There will be some red glue that you will need to scrape away to turn the bolt. I didn't need to scrape away all of it. Just enough so that the bolt would turn. Turn the bolt a bit and then turn the set knob on the front. You will see that the clicking has changed a bit. Keep going until it turns on off around the actual humidity level inside you home. Not sure why the calibration was so far off to begin with but this will definitely fix any issues you had with the humidity level your humidifier was throwing out.
Date published: 2014-11-13
Rated 4 out of 5 by from poor calibration, but otherwise seems ok Very poor Chinese factory calibration, but luckily can be adjusted by turning the small white plastic bolt. Factory "off" indicated at ~11% when room was actually over 30%. Has a hysteresis of ~8-10% (i.e., on at 30%, off at 38%). Mine squeaks when dial is turned, sometimes making it hard to hear the on/off clicks. Simple one-wire circuit interrupt. I like the wide range and honestly, the adjustability to recalibrate over time. Relatively inexpensive.
Date published: 2013-02-04
Rated 1 out of 5 by from This product is JUNK!! I installed a brand new Honeywell humidifier and this humidistat was supp... This product is JUNK!! I installed a brand new Honeywell humidifier and this humidistat was supplied with it. The humidistat did not shut off when set at 20% and the space had 50% humidity verified with a hygrometer. I went to home depot to purchase another humidistat thinking I had a bad one and once again 35% space verified and the humidistat was enabling at 10%. Honeywell you should be embarrassed to sell this product!!!!
Date published: 2017-01-06
Rated 4 out of 5 by from Old one off new one on and works great!... Old one off new one on and works great!
Date published: 2017-01-24
Rated 3 out of 5 by from Erroneous Product Description The product description erroneously states that "It features 12 in. of thin, moisture-sensitive nylon ribbon wound around 3 bobbins to provide optimum control and reliable operation under changing ambient." If it were true, you wouldn't be able to mount the product on a wall!! In addition, the installation manual does not show a ribbon nor does it mention it. Likewise, I checked several packages of the product in Home Depot and none had a ribbon!!!!!!!!!!! Furthermore, a search of the Internet fails to mention any such ribbon. Ribbons were used in older models in which the ribbon was inserted into the air duct to sense the humidity level.
Date published: 2014-01-01
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