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Aprilaire 800 Whole Home Steam Humidifier, Automatic Steam Humidifier, Large Capacity Whole House Humidifier for Homes up to 6,200 Sq. Ft.

4.4 out of 5 stars 214 ratings

Price: $686.54 & FREE Shipping. Details
Available at a lower price from other sellers that may not offer free Prime shipping.
6,200 sq. ft.
Air Ducts Required
  • BUY WITH CONFIDENCE This high output steam humidifier was designed with electrode technology and manufactured in the U.S.A. by Aprilaire – the inventor of the whole home evaporative humidifier, and the leader in indoor air quality solutions
  • FULL COVERAGE up to 6,200 square feet in tightly built homes. Choose from 6 levels of output adding 11.5 to 34.6 gallons of moisture into the air per day based on voltage and installation
  • PURIFIED WATER NOT REQUIRED Electrode technology requires impurities in the water to promote the transfer of electricity. Water filtration is not recommended – minimizing installation complexity and operating costs
  • 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.Water in steam canister, steam pipes, and dispersion tube can be as hot as 212°F (100°C)
  • HUMIDITY FOR HEALTH Aprilaire Humidifiers can help you maintain optimal humidity in your home of 35% – 45% 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, you’ll feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions
  • Material Type: Steel
  • Included Components: Steam Hose (6 Ft), 7/8" Drain Tubing (10 Ft), Valves, Installation Instructions
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Frequently bought together

  • Aprilaire 800 Whole Home Steam Humidifier, Automatic Steam Humidifier, Large Capacity Whole House Humidifier for Homes up to 6,200 Sq. Ft.
  • +
  • Aprilaire 80 Replacement Canister for Aprilaire Steam Humidifier Models 800 and 865 (Pack of 1)
  • +
  • Humidi-PRO Humidifier Treatment
Total price: $788.49
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From the manufacturer

aprilaire humidifier aprilaire humidifier
Aprilaire 800 Whole House Steam Humidifier Aprilaire 865 Whole House Steam Humidifier with Wall Mount Fan
Home Size Coverage (Sq. Ft.) 6,200 6,200
Water Capacity (Gallons Per Day) 11.5 to 34.6 11.5 to 34.6
Sensor Dual Sensor Single Sensor
Control Automatic Manual
Humidifier Dimensions (Inches) 10.125 W X 20.875 H X 7.125 D 10.125 W X 20.875 H X 7.125 D
Replacement Canister 80 80
Canister Replacement Timing Per Humidification Season Once Once
Fan Included
Purified Water NOT Required
Fan Pack Dimensions (Inches) 16.188 W X 9 H X 1.938 D

Product description

Size:6,200 sq. ft.  |  Style:Air Ducts Required

Product 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 – including steam humidifiers. Aprilaire steam humidifiers use electrode technology and are simple to install, operate, and maintain. With electrode technology, electrical current flows between submerged electrodes, resistance of the water to the electric current heats the water. The submerged electrodes are found in a replaceable canister. At the end of a humidifier season, the canister – including the electrodes, is replaced. No cleaning, no scrubbing, simply replace the canister and you’re ready for the next humidifier season. Electrode technology requires impurities in the water to promote the transfer of electricity. For this reason, water filtration is not required with electrode technology, minimizing the complexity of the installation and on-going operating costs. This unit will operate with water hardness between 3 and 36 grains – a very wide range. If reverse osmosis or deionized water is present, plumb the steam humidifier to a water line before the water flows through the reverse osmosis or deionization equipment.

INCLUDED IN THE BOX: Installation instructions, steam humidifier, Model 62 automatic digital humidifier control with sensor, outdoor temperature sensor, dispersion tube, steam hose (6 feet), 7/8 inch drain tubing (10 feet), hose clamps, saddle valve, mounting screws, Model 80 steam canister

From the Manufacturer

The Aprilaire Model 800 Residential Steam Humidifier features truly automatic control, so there's no need to manually control the humidifier - though it can be installed in manual mode, if desired.


Product information

Size:6,200 sq. ft.  |  Style:Air Ducts Required

Technical Details

Technical Specification

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Additional Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF ]

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