Aprilaire 400 Humidifier

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Add the new Aprilaire 400 Humidifier Annual Maintenance Kit to your order! This convenient kit gives you all the parts you need to maintain your Aprilaire 400 humidifier each year and keep it running in like-new factory condition.

Aprilaire humidifiers are some of the most consistent whole house humidifiers on the market today. The Aprilaire 400 humidifier is one of the most notable bypass humidifiers, providing humidification for homes as large as 4,000 square feet. This whole house humidifier does not require a drain, which makes it extremely convenient in environments where a floor drain is not accessible near the unit. AprilAire humidifiers are remarkable products, and you will find the Aprilaire 400 to be one of their best models with many automatic features.

The automatic controls of the Aprilaire 400 humidifier are extremely appealing to most customers. The Aprilaire 400 house humidifier includes automatic digital humidistat control, outdoor temperature sensor, saddle valve, 24V transformer, one humidifier water panel, and a certificate for a free digital weather station. You have the option to let the Aprilaire 400 whole house humidifier automatically control the humidity, or you can have it installed in manual mode if you prefer to have complete control.
Our Aprilaire humidifiers come complete with installation instructions and an installation template so you can easily have your new whole house humidifier working in no time. The Aprilaire model 400 humidifier even includes a built-in bypass damper to make for even easier installation and quick changeover from winter to summer settings.

Aprilaire 400 Humidifier Features

• Automatic Digital Control - displays relative humidity level, shows the Aprilaire humidifier is operating, gives service alerts and notifications when it's time to replace the water panel.
• Outdoor Temperature Sensor
• Manual Mode Resistor
• Water Panel
• 24V Transformer
• Saddle Valve
• Certificate for Free Digital Weather Station

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• 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.