Aprilaire Model 700A Whole-House Humidifier Big humidification performance to match the biggest homes: the Model 700A. The Aprilaire Model 700 Whole-House Humidifier features truly automatic control, so there's never a need to manually control the humidifier—though it can be installed in manual mode, if desired. Complementing any central heating and cooling system, the Aprilaire Model 700 Whole-House Humidifier: Utilizes an outdoor temperature sensor for monitoring even the slightest changes in outdoor temperature Delivers up to 50% more moisture in comparison to competitive units Has an evaporation capacity of 0.75 gallons per hour—among the highest capacity humidifiers sold Humidifies tightly-constructed homes up to 4,200 square feet in size If you own a larger home and want the best, then the Aprilaire Model 700A Whole-House Humidifier with automatic digital control is the right choice for you. For some homes, a Model 700M manual control may be recommended. Most Aprilaire humidifiers are available with a convenient, economical manual control option. Aprilaire Model 600A Whole-House Humidifier Want the perfect humidity level for any season? Take a look at the Model 600A. The Aprilaire Model 600A Whole-House Humidifier features truly automatic control, plus a built-in bypass damper, which means fewer parts to install. The bypass damper is conveniently labeled for both summer and winter settings, allowing you to set it for the entire season with no guesswork involved. The Aprilaire Model 600A Whole-House Humidifier is simply the best performing bypass humidifier on the market. The Aprilaire Model 600A Whole-House Humidifier: Features the same performance benefits of other Aprilaire Humidifiers Delivers up to 50% more moisture in comparison to competitive units Has an evaporation capacity of 0.70 gallons per hour Humidifies tightly-constructed homes up to 4,000 square feet in size The Aprilaire Model 600A Whole-House Humidifier with automatic digital control is simply the best performing bypass humidifier on the market. For some homes, a Model 600M manual control may be recommended. Most Aprilaire humidifiers are available with a convenient, economical manual control option. Choosing the right Humidifer is an important decision and investment. Click below to learn more about Aprilaire Whole-House Humidifiers: Aprilaire Model 500A Whole-House Humidifier Get big results for small to mid-size homes with the Model 500A Whole-Home Humidifier. The Aprilaire Model 500A Whole-House Humidifier features a fully automatic control and built-in bypass damper, designed for use in small to mid-size homes. The Aprilaire Model 500A Whole-House Humidifier: Utilizes a manual humidifier control Installed in either your living area or central heating and cooling system ductwork Comes equipped with a drain to flush minerals from the unit Has an evaporation capacity of 0.50 gallons per hour Humidifies tightly-constructed homes up to 3,000 square feet in size The Model 500A bypass humidifier is an economical proven performer in the extensive line of Aprilaire Humidifiers. For some homes, a Model 500M manual control may be recommended. Most Aprilaire humidifiers are available with a convenient, economical manual control option. Choosing the right Humidifer is an important decision and investment. Click below to learn more about Aprilaire Whole-House Humidifiers:
Aprilaire Model 400A Whole-House Humidifier Need to maximize your humidity control with minimal water? Choose the Model 400A with automatic digital control. The Aprilaire Model 400A Whole-House Humidifier features a built-in bypass damper and utilizes new evaporative technology to minimize water use. Gravity pulls water down, while the wicking action of the Water Panel draws it back to the top, using 100% of the water delivered to the unit. The Aprilaire Model 400A Whole-House Humidifier: Features truly automatic control Eliminates standing water, making it the perfect choice for homes with septic systems, locations where a floor drain is not available or families interested in water conservation Has an evaporation capacity of 0.70 gallons per hour Humidifies tightly-constructed homes up to a 4,000 square foot in size The Aprilaire Model 400A Whole-House Humidifier is the newest addition to the extensive line of Aprilaire Humidifiers and may be the perfect solution for your home. Choosing the right Humidifer is an important decision and investment. Click below to learn more about Aprilaire Whole-House Humidifiers:

Whether you're installing a new furnace or just adding a humidifier to your existing furnace, Aprilaire is the cost-effective solution to your dryness problems.

Homes with heat pumps require proper humidity, just like homes with other heating systems. Aprilaire provides an easy answer: the Model 558, 568, 768, 350, or 360. These models all perform well on heat pump systems.