The AprilAire 800 Steam Humidifier delivers premium whole-home humidity—even in large homes up to 6,200 sq. ft. Its steam technology operates independently of HVAC airflow, providing consistent moisture using standard cold water. With multiple output capacities, simple canister-only maintenance, and automatic control, it’s a versatile solution for dry climates or homes without forced-air heating.
MODEL 800 FEATURES:
- Accommodates crawl spaces, attics and areas of the country with milder winters and non-forced air heating.
- Provides humidity to the largest of homes (up to 6,200 square feet).
- Features truly automatic control but can be installed in manual mode as well.
- Runs independently of your HVAC system to accommodate larger homes (up to 6,200 square feet)
- Delivers optimum levels of humidity control with the Automatic Digital Humidifier Control.
- Performs quietly and with simple maintenance. You only need to replace the canister.
- Has a capacity of 11.5, 16.0, 20.5, 23.3, and 34.6 gallons per day, depending on electrical draw.
- Uses cold water, which may be hard, soft or softened.


