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AprilAire Model 800 Steam Humidifier

Regular price $1,100.00
Shipping calculated at checkout.

Delivery and Shipping

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The AprilAire Model 800 Steam Humidifier is a premium, whole-home humidity solution designed for modern, tightly sealed homes that require precise and reliable moisture control. Unlike evaporative humidifiers, the Model 800 produces pure steam, allowing it to deliver consistent humidity even when the furnace is not running.

Capable of producing up to 34 gallons of moisture per day, the AprilAire 800 is ideal for large homes, cold climates, and homes with high humidity demands. Its steam-based operation provides fast, even distribution without relying on duct temperature or airflow, making it the most powerful humidifier in the AprilAire lineup.

Key Features

  • Steam humidifier for maximum humidity output

  • Delivers up to 34 gallons per day

  • Designed for homes up to 6,200 sq ft

  • Operates independently of furnace heat

  • Provides precise, automatic humidity control

  • Ideal for tight, energy-efficient, and modern homes

  • Compatible with gas, electric, and heat pump systems

  • Replaceable steam canister for clean, reliable operation

  • Quiet operation with no airflow noise

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Compare The Difference

Find the perfect humidifier match for cleaner, healthier air.

A table comparing the facets of 4 products
Title
TitleAprilAire 500 Small Bypass Evaporative HumidifierAprilAire 600 Large Bypass HumidifierAprilAire 700 Fan-Powered Evaporative HumidifierAprilAire Model 800 Steam Humidifier
By
ByAprilAireAprilAireAprilAireAprilAire
Humidifier Type
Humidifier Type
Bypass
Bypass
Fan-Powered
Steam
Moisture Output (Max)
Moisture Output (Max)
12 GPD
17 GPD
18 GPD
34 GPD
Home Size Coverage
Home Size Coverage
Up to 3,600 sq ft
Up to 5,000 sq ft
Up to 5,300 sq ft
Up to 6,200 sq ft
Water Usage
Water Usage
Moderate
Moderate
Moderate-High
High
Noise Level
Noise Level
Silent
Silent
Very Low
Silent
Electric Required
Electric Required
No
No
120V
120V
Maintenance Requirement
Maintenance Requirement
Annual water panel
Annual water panel
Annual water panel
Steam canister replacement
Installation Complexity
Installation Complexity
Low
Low
Medium
High
Price
Price
Regular price $240.00
Regular price $250.00
Regular price $500.00
Regular price $1,100.00

Need help with maintenance?

Our expert technicians will make sure your unit is running optimally, and that you get the most out of your unit.