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Honeywell Whole House Bypass Humidifier (HE280)

Honeywell HE280 Whole House Bypass Humidifier

Model: HE280A2001 | SKU: ho3507
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Price: $199.95
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  • FREE 2 Day Express Shipping
  • In Stock - Order Now. Your item will ship Tuesday, Apr 28th

Special Offers
Additional Warranty Options Available
1-Year Extended Warranty (Product Replacement) ($19.95) Details
2-Year Extended Warranty (Product Replacement) ($26.95) Details
  • Product Overview

    Parched winter air can truly make the colder months unbearable if you don't have the right solution. Alleviate your dry skin, soothe irritated nasal passages, and stop costly humidity damage to your home with the Honeywell HE280 Whole House Bypass Humidifier! This furnace humidifier works with any forced air furnace to provide comfortable humidified air in every room of your home. Using efficient PerfectFLO water distribution technology, the HE280 distributes roughly 17 gallons of moisture per day to cover homes up to 4,000 square feet.

    Works With Your Furnace

    The Honeywell HE280 Humidifier installs easily onto the warm air supply or return air duct of your furnace and hooks to a drain line with simple DIY installation. To operate, warm air from your furnace blows over a water-soaked evaporator pad and wicks up moisture, creating vapor. Warm humidified air is then propelled out through your air ducts to circulate throughout all the rooms of your home. The HE280 includes an easy-to-use humidity control that monitors your home's relative humidity and activates the humidifier when it falls below your set humidity level.

    Flow-Through Design for Easy Maintenance

    The Honeywell HE280 Whole House Bypass Humidifier features a flow-through design that helps keep the unit clean of microorganisms by routinely rinsing and draining itself instead of drawing stagnant water from a reservoir. Plus, the evaporator pad helps filter out minerals from hard water and other impurities for cleaner moisture. These features contribute to less maintenance throughout the humidifying season. 

    Additional Benefits and Features

    • Uses 30% Less Water - Honeywell's water-saving technology helps this unit uses 30% less water than conventional whole house models. That translates into 20 gallons of water savings!
    • PerfectFLO Water Distribution - Honeywell's unique PerfectFLO system optimizes water usage and efficiency for low-cost humidifying.
    • Easy DIY Installation - Easy step-by-step installation instructions and all the parts you'll need are included. Plus, there's an online installation video available for reference.
    • Protects Your Interior - Properly humidified air helps protect your wood floors and furnishings from damage.
    • Low Maintenance - Flow-through humidifiers typically require cleaning and replacement evaporator pads just once a year, depending on your water quality.
    • Saves Energy - Improved humidity can actually make it feel warmer indoors. That means you

    What You'll Need for Installation

    The installation kit for this model is included. But you'll also need the following items:

    • Forced-Air Furnace
    • Floor Drain in Furnace Room
    • Tin Snip
    • Screwdriver
    • Adjustable or Open-End Wrench
    • Drill
    • ¾-inch (19mm) sheet metal drill bit
    • Level
    • Marking Pen or Pencil


    Say goodbye to uncomfortable symptoms caused by parched wintry air with a single solution, the Honeywell HE280 Whole House Bypass Humidifier!

    What Customers Love

    • Easy DIY Installation - An installation kit with all the parts you need is included as well as easy-to-follow instructions. Plus, Honeywell has an online installation video available.
    • Set It and Forget It - Set your desired humidity level on the humidity control and the humidifier will run only when needed. No need to turn it on and off manually.

    Things To Consider

    • How Old is Your Home? - The HE280 covers humidifies up to 4,000 square feet in homes less than 20 years old. When used in homes older than 20 years, the HE280 can humidity up to 2,000 square feet.
    • Have Hard Water? - If you have hard water, keep in mind that you might have to perform more frequent maintenance to keep this humidifier running optimally.

    Manufacturer's Warranty


    Manufacturer's Literature

    Owner's Manual
    Owner's Manual for the Honeywell HE280 Bypass Humidifier

    What's In The Box?

    • Honeywell HE280 Bypass Flow-Through Humidifier
    • Honeywell H8908 Humidistat
    • Evaporator Pad
    • Installation Kit
    • Installation Guide and Owner's Manual

    View All Humidifiers »
  • Specifications

    Humidifier TechnologyEvaporative
    Type of HumidifierCool Mist
    Coverage Area4000 sq. ft.
    Ideal ForWhole House
    Height18.32 in.
    Width16.27 in.
    Depth9.59 in.
    Weight14 lbs.
    Moisture Output Per Day17 gallons
    Humidistat Yes
    Humidity DisplayNo
    Mist Output ControlYes
    Programmable TimerNo
    Wick FilterYes
    Frequency of Filter ReplacementsReplace seasonally or more frequently if you have hard water
    Air FiltrationNo
    Germ ProtectionNo
    Demineralization CartridgeNo
    Medicine CupNo
    Automatic Safety ShutoffYes
    Voltage110-120 V
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