Kenmore 15412

Bottom line

Whole house humidifiers are less popular than tabletop models, and reviews for these large units are comparatively rare. One brand -- Kenmore -- dominates this category, and the Kenmore 15412 stands out in reviews. This machine can output an astonishing 12 gallons of moisture per day, enough for 2,500 square feet of space. Owners say features like auto-set and auto-off make it easy to operate. However, this whole house humidifier is noisy, and filters must be replaced monthly.

Ease of use

Easy to move around, simple to operate: From auto shut-off to an indicator light to alert owners when the filter should be changed, the Kenmore 15412 was built with ease in mind, reviewers say. The large LCD display displays the set, targeted and current humidity levels, and the 3.9-gallon tank makes for less frequent refilling. The Kenmore is mounted on casters, making it easy to move about the house as needed.

Moisture output

Excellent, whole-house moisture output: The Kenmore 15412 is an evaporative humidifier that can generate 12 gallons of moisture per day, enough to cover 2,500 square feet of space. Its humidistat allows you to adjust the humidity in 5-percent increments, and its double-fill tank system reduces the number of trips you must make to the sink. Professional tests show that the Kenmore 15412 produces very good moisture output.

Noise

When it's on, you'll know it. Fan-driven humidifiers like this one are louder than ultrasonic humidifiers, and the Kenmore 15412 is particularly noisy, users say. Some complain that the tank makes a gurgling noise as it empties, which wakes them up at night. Other owners say that the Kenmore gets louder as the filter becomes dirty and the fan works harder to compensate. 

Ownership

Mixed reviews when it comes to quality: Some consumers complain over the quality of this machine, saying that the plastic seems flimsy. Still, it receives strong marks for durability. To help manage bacterial and microbial growth, this humidifier relies on a treated filter. Users say this machine is easy to fill and covers a large area, but the ongoing cost of replacement filters (*Est. $18) -- which must be replaced about once a month -- is a drawback.