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  • Honeywell H8908B Whole House Humidistat
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Honeywell H8908B Whole House Humidistat

30 customer reviews
| 7 answered questions

List Price: $26.97
Price: $26.34 & FREE Shipping on orders over $35. Details
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Only 14 left in stock (more on the way).
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  • Low-Volt Humidity Control
  • For use on humidification applications
  • Consistent look to Chrono IV family
  • 20 to 80-Percent RH range
See more product details
14 new from $12.99 4 used from $12.99

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$26.34 & FREE Shipping on orders over $35. Details Only 14 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Honeywell H8908B Whole House Humidistat + AcuRite 00613A1 Indoor Humidity Monitor
Price for both: $36.32

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Product Description

Product Description

Highlights: 12" ribbon of thin, moisture-sensitive nylon ribbon wound around three bobbins effectively gives optimum control for reliable operation under changing ambient conditions Mounts in duct or on wall surface Operating humidity range - 10 to 60 percent RH (Humidity Range) Positive on and off settings Premier white

From the Manufacturer

Reliable Honeywell Whole-House Humidifiers work with your homes furnace to maintain a proper, comfortable humidity level throughout the home. Honeywell's H8908B Humidistat provides automatic Low Voltage control of humidifiers in central heating and air conditioning systems.


Product Information

Technical Details
Part Number H8908B1002
Item Weight9.6 ounces
Product Dimensions3 x 3.8 x 5 inches
Item model numberH8908B
Colorwhite
Item Package Quantity1
Warranty Description1 year warranty
  
Technical Specification
Additional Information
ASINB001QOGNMI
Best Sellers Rank #51,315 in Home Improvement (See top 100)
Shipping Weight6.4 ounces (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableJuly 19, 2006
  
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

16 of 17 people found the following review helpful By Roger Maxwell on November 17, 2010
Verified Purchase
The settings on the one I received are off by approximately 20 percentage points. For example, with a setpoint of 25% it will control humidity around 46%. The unit has about a 5% hysteresis. Although I would consider this unit defective with a setpoint inaccuracy this large, I realize it is an inexpensive mechanical humidistat so I wasn't expecting much. It will suffice for my needs - I just have to keep in mind the scale isn't accurate.
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9 of 9 people found the following review helpful By Amazon Customer on September 6, 2009
Verified Purchase
Well, there is not much to a humidistat, it works well. I have the digital display that tells me the humidity in my house and it seems to match the settings on this humidistat. So far I am happy. I would recommend this product plus it looks good.
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7 of 7 people found the following review helpful By Scott M on November 10, 2013
Warning, I have no idea what this does to any warranty, but it worked for me.

I learned that if you look of the back of the unit you will find a very small white plastic bolt that can be used to calibrate the unit. It may have a drop of some red nail polish looking stuff on it that you may need to scrap a little off with a thin nice. I believe it's suppose to "lock" the screw into place.

Anyway, if you screw the bolt in, I used I set of tweezers, you can adjust the cutoff point to be more accurate. I used a separate digital humidistat to see what the humidity in the room was then turn the bolt in until the unit cuts off at that humidity level.

Be 4 or more stars if it was easier to calibrate. :( or if it came correctly calibrated.
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5 of 5 people found the following review helpful By Michael Matthews on February 20, 2012
Verified Purchase
I returned the first unit I received as defective. Amazon promptly shipped me a replacement, but unfortunately it arrived with the same defect. Units are not calibrated to any level of usable accuracy. A set point of 10% on the humidistat is actually 45% as verified with a quality sling psychrometer. At 20 degree outside temperature you should set your humidifier to 35% and even lower as the temperature drops. This is not possible with this amount of mis-calibration.
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4 of 4 people found the following review helpful By Richard A Stovall on May 6, 2013
Verified Purchase
This was the second Honeywell Humidistat that they had sent me. The supplier was very prompt and helpful when the first one did not work properly and sent a replacement. The humidistat functions but the calibration (which is preset when made) is really far off. E.g. I am using two other humidity gauges to measure the actual humidity in the house. With the Humidistat set on 10% you get 40% plus humidity in the house. The first one I got was off just as bad.
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6 of 7 people found the following review helpful By Man from Nantucket on January 4, 2013
This unit came with my Honeywell HE260A Whole House Humidifier. It works fine with the humidifier, but it's off by around 30 percentage points. Right now, it's set to 10%, but the 3 digital humidity sensors that I have around the house show around 40%. I purchased another unit at Home Depot, but it was almost as inaccurate, so I returned it. If you do buy this, at least get a decent digital humidity sensor, so that you know what the humidity level in your house is. Don't trust this to be accurate.
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8 of 10 people found the following review helpful By Alexandre Krilov on December 9, 2009
Verified Purchase
Works great, but it had very tight place for wires if you do a surface mount.
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3 of 3 people found the following review helpful By 1ReviewDownTheDrain on December 1, 2012
Verified Purchase
This product was easy to install with the HE260A. I wish I would have purchased the one that displayed the humidity in my home but that's my fault for being cheap.
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Honeywell H8908B Whole House Humidistat
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