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Aprilaire

AprilAire 600 Whole-House Humidifier, Automatic High Output Furnace Humidifier, Large Capacity Whole-House Humidifier for Homes up to 5,000 Sq. Ft., White

  • Based on 865 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Oct 11
Order within 23 hours and 14 minutes
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Style: Humidifier


Features

  • BUY WITH CONFIDENCE This humidifier was designed and manufactured in the USA by AprilAire the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 5,000 square feet in tightly built homes with a capacity of 17 gallons per day
  • AUTOMATIC HUMIDIFIER with dual sensors to monitor and respond to both outdoor temperature and indoor relative humidity to deliver optimum humidity 24/7 throughout the home simply set it and forget it
  • CONVENIENT DIGITAL CONTROL shows percent humidity, lights indicate humidifier is running, when to change the Water Panel, when service is needed, and Blower Activation switch sets humidifier to run continually, or only when the furnace runs
  • HUMIDITY FOR HEALTH AprilAire Humidifiers can help you maintain optimal humidity in your home of 40% 60% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites. In addition, youll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions

Description

AprilAire introduced the first evaporative humidifier for forced air furnace systems back in 1954. Since that time, AprilAire continues to lead the industry in whole home humidification systems. Our evaporative humidifiers work by piping water into the distribution tray located at the top of the humidifier. The water is uniformly distributed across the width of the tray and through a scientifically designed system of outlets. It flows by gravity over the Water Panel evaporator. Dry, hot air from the HVAC system is moved through the moisture-laden Water Panel evaporator. Natural evaporation takes place, the water is turned to vapor, and the humidified air is circulated throughout your home. INCLUDED IN THE BOX: Installation instructions and template, humidifier with built-in bypass damper, 24 VAC transformer, automatic digital humidifier control with sensor, outdoor temperature sensor, saddle valve, solenoid valve, and Model 35 Water Panel.

Brand: Aprilaire


Special Feature: Adjustable Humidity Control, Auto Shut Off, Digital Display, Humidistat, Quiet, Service Filter Indicator See more


Color: Gray


Floor Area: 4000 Square Feet


Operation Mode: Evaporative


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 10.25 x 15.38 x 15.75 inches; 8.7 Pounds


Item model number ‏ : ‎ 600


Date First Available ‏ : ‎ September 5, 2014


Manufacturer ‏ : ‎ Research Products Corporation


Best Sellers Rank: #444,657 in Home & Kitchen (See Top 100 in Home & Kitchen) #429 in Humidifiers


#429 in Humidifiers:


Customer Reviews: 4.5 4.5 out of 5 stars 865 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Made Colorado Winters Comfortable
Style: Humidifier
I recently purchased the Aprilaire 600 Whole Home Humidifier, and I couldn't be happier with the results! Living in a dry climate, I've struggled with uncomfortable indoor air for years, but this product has truly transformed my home environment. Installation was surprisingly straightforward, thanks to the comprehensive instructions provided. Even for someone like me who isn't particularly handy, it took just a few hours to set up the Aprilaire 600. The build quality is excellent, and it's clear that this product is designed to last. One of the things I appreciate most is the automatic control feature. It maintains the perfect humidity level in my home without me having to constantly adjust settings. This has not only made the air more comfortable but also helped me sleep better at night and reduced static electricity, which was a common annoyance in the winter months. The performance is outstanding. Within a short period of time, I noticed a significant improvement in the overall comfort of my home. My skin feels less dry, my allergies have improved, and even my furniture seems happier with the added moisture. It's also a relief to know that maintaining the optimal humidity level can help protect my wooden floors and prevent them from cracking. In summary, if you're tired of dealing with dry air and its negative effects on your health and home, the Aprilaire 600 Whole Home Humidifier is a fantastic solution. It's reliable, easy to install, and delivers noticeable results. I couldn't recommend it more highly – it's been a game-changer for me, and I'm sure it will be for you too! ... show more
Reviewed in the United States on September 28, 2023 by Spandex Queen
    • Nice replacement for older unit
Style: Humidifier
Review Image by Philip Glassel Philip Glassel
Review Image by Philip Glassel Philip Glassel
Review Image by Philip Glassel Philip Glassel
My older AprilAire (44x series) whole house humidifier unit finally gave out after decades of service and outlasting the original furnace. I chose this unit as the replacement, hoping it would be an easy drop in. I was partially correct. The plenum cutout was entirely different. The new cutout required more total area, but the width was much narrower requiring the plenum to be patched with a sheet of galvanized sheet steel. Cutting the sheet before it was patched onto the plenum was easy, but enlarging the height of the existing plenum hole was a bit challenging to accomplish with normal tin-snips. I ultimately made the cut with a diamond cutoff wheel on my cordless angle grinder. After a few pop-rivets to marry the patch to the plenum and a few grinder sparks later, I was ready to mount the new humidifier. Be sure to follow the supplied template for creating the hole. Because this was a replacement for the previous generation humidifier, the water valve and piping, the hot-air bypass, and the humidistat were already present along with a sophisticated control and electronic interface module already set up to a well-know Minnesota manufacturer's electronics. The furnace also has an infinitely variable speed blower which maximizes the effectiveness of this humidifier. I took advantage of this maintenance activity and installed a condensate pump which allowed me to move the multiple hoses that previously ran across the floor, into the ceiling rafter space. This neatened up the entire installation, making routine cleaning of that area much easier. I turned the system on and the house was up to the 40% humidity set-point in a few hours. My system is smart enough that when the outdoor temperature dropped to -30 for a few days, the humidity was automatically reduced to avoid frost and ice build-up on the windows. It took a couple days to fine tune these settings, but I had less frost on the windows than I had in the past. I cannot speak to how the AprilAire-supplied humidistat might work because I used my own system that was already in place. For those who complain that this device uses too much water... the saddle valve is... a valve. Turn it down a bit. It is necessary to get enough water to wet the humidifier water pad, but that probably doesn't require you to run the water full blast. I adjusted mine by watching the water as it drained from the system "while in use, as used". In other words, adjust this with the furnace actually running and heating. As I currently have it adjusted, I get far more water from the furnace combustion product than I do from the humidifier. ... show more
Reviewed in the United States on January 28, 2025 by Philip Glassel Philip Glassel
    • Easy to install
Style: Humidifier
Easy to install but I used a manual thermostat the electronic is too complicated to figure it out. Works perfect.
Reviewed in the United States on August 27, 2025 by AriG
    • Great Unit Poor Documentation
Style: Humidifier
Product came and works as it should. Unit only came with one possible wiring solution and was missing all other documentation that would have shown other wiring solutions. In the end, I wired it as drawn with the extra transformer off the main furnace power just after the fuse even though my furnace board was setup to power the unit directly in multiple other methods. This does allow you to use and test the unit without the furnace blower already running. Also no documentation showing test codes or error codes. If you test and get an E# then you have an error. rE should mean the unit is ready. This unit also didn't come with the sticker to use the unit dial in manual mode. Other than those issues which may add more time to your installation the unit works very very well even running on cold water. Very happy that the humidity in my home with now be under control and will be fairly maintenance free. Should have done this sooner. I will also add that I installed another model of Aprilaire in my previous home and never had a single issue. In both cases no more daily water fills and monthly filter changes. ... show more
Reviewed in the United States on December 21, 2021 by MM

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