Aprilaire Model 801 Modulating Steam Humidifiers

If you’re looking to humidify your whole home but need a more robust unit than a traditional in-duct humidifier, then look no farther than the Aprilaire Modulating Steam Humidifier. Operating independently of your HVAC system, this humidifier will evenly distribute up to 34.6 gallons of moisture to spaces as large as 6,200 square feet. Its modulating output allows it reach a tighter humidity control than other steam humidifiers, within 3% of your desired set point. This unique modulation makes it ideal for homes and buildings with delicate furniture, paintings, and musical instruments.

Model 801 vs. Model 866

The Aprilaire Model 801 Modulating Steam Humidifier is best for:

• Homes with HVAC system ducting where attic and crawl space installation is feasible.
• Homes in areas of the country that experience milder winters.

You’ll want to consider the Aprilaire Model 866 Ductless Modulating Steam Humidifier Package if you have a home where ductwork isn’t present or isn’t accessible.

• The fan pack joins with this Aprilaire Steam Humidifier to create comfortable humidity levels in homes without duct work.
• Easy to install, the fan pack recesses into a wall and connects directly to the steam humidifier.

Whether you want the Model 801 or Model 866 be sure to select your desired model at checkout.

Modulating Output

What sets these Aprilaire steam humidifiers apart from others is its modulating output. This ability allows the unit to meet a tighter relative humidity control than other options. Typically, within 3% of the set point, it’s a useful feature for homes and buildings with delicate belongings like musical instruments, paintings, artifacts and other sensitive objects.

How it Operates

Both models generate steam by energizing 2 electrodes that extend into a canister filled with water. As the current flows between the electrodes it’ll cause the water to boil, creating steam. This steam humidity then flows through a distribution tube and humidified air is then either released through your ductwork or the fan pack depending on your selected model.

The daily humidity output is based on the electrical draw you’ve chosen. At 120 volts it’ll provide 16 gallons of moisture per day. You’ll have 30 gallons per day at 208 volts and with 240 volts it’ll deliver 34.6 gallons per day.

Additional Features

• Display Panel: Features LED lights to show fill, drain, steam operations, diagnostics, and has a power switch for on/off operation.
• Disposable Canister: Under normal conditions it’ll need to be replaced once per humidifier season.
• Internal Control Board: Manages the unit’s operation including filling and draining to maintain correct electrical draw, water level, and lets you know when service is needed.
• Relieves Symptoms: Humidified air reduces respiratory irritation and other physical issues associated with dry air.
• Lower Energy Costs: Maintain a healthier level of humidity during the winter months can help you to feel warmer, so you’re less reliant on your heater.

Summary

Find precise whole house humidification in buildings up to 6,200 square feet with the Aprilaire Modulating Steam Humidifier.

What Customers Love

• For Any Building: Two models are available so whether your home has ductwork or not there’s an installation option available for you.
• Modulating Output: Designed to be more precise, it’ll maintain your desired humidity level within 3%.

Things to Consider

• Automatic Control: Consider the Aprilaire Model 63 Package for automatic control of the Aprilaire Model 801 Humidifier. The Model 5558 is a wall mounted humidistat kit for automatic control of the Aprilaire 866 Humidifier.