AprilAire
Aprilaire 700 Automatic Power Humidifier
Best whole-home solution for large houses needing consistent moisture control.
Experience optimal indoor air quality with the Aprilaire 700 Automatic Power Humidifier. This whole-home unit is designed for homes up to 4,200 square feet, delivering up to 18 gallons of moisture daily to effectively combat dry air. Its automatic digital humidistat ensures precise humidity control, maintaining your home within the ideal 30-50% range for enhanced comfort and well-being. The fan-powered design efficiently utilizes your furnace's warm air for consistent humidification, providing reliable performance. Installation is straightforward, integrating seamlessly into your ductwork for effortless operation.
$524.99
Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 486
Best Humidifiers
Price vs Category Average
+361%
Above average
Coverage Area
4200
/ Up to , sq ft
Who it's for
- Homeowners managing moisture levels in large residential spaces
- Busy families wanting hands-off, automated climate control
- Residents needing rapid, consistent humidity distribution throughout their home
Who should skip it
- DIY enthusiasts lacking professional HVAC installation experience
- Eco-conscious users prioritizing minimal water usage
- Budget-focused buyers avoiding recurring annual maintenance costs
Performance breakdown
Humidification Capacity
Eighteen gallons per day easily handles even the largest residential floor plans.
Control Precision
The digital humidistat maintains your preferred moisture levels with set-it-and-forget-it reliability.
Installation Complexity
Requires ductwork integration, making it a project for experienced DIYers or professionals.
Maintenance Requirements
Annual wick filter replacements keep the system running at peak efficiency.
Operational Efficiency
Fan-powered design leverages existing furnace airflow for consistent, whole-home moisture distribution.
Build Durability
Robust construction ensures long-term performance within your home's HVAC infrastructure.
Key Specs
Coverage Area
Up to 4,200 sq ft
Water Output
Up to 18 gallons/day
Dimensions
18" H x 11.35" W x 15.91" D
Plenum Opening
14 3/4" x 14 5/16"
Control Type
Digital Display
Filter Type
Wick Filter
Built-in Humidistat
True
Power Source
AC Powered
Features
- Whole-home humidification for large spaces
- Automatic digital humidistat for precise control
- High capacity: up to 18 gallons per day
- Efficient fan-powered operation
- Relieves dry air symptoms
- Protects home from dry air damage
- Low maintenance design
- Simple ductwork installation
What customers say
Customers overwhelmingly praise the Aprilaire 700 as a top-tier, reliable whole-house humidification solution. Its powerful output and automatic digital control are highly valued for maintaining optimal comfort while preventing condensation. Users appreciate the set it and forget it operation, noting immediate relief from dry skin and static electricity during winter. The robust build quality supports its consistent performance, making it a worthwhile long term investment in home comfort. While installation complexity often suggests professional help, the superior performance generally overshadows minor maintenance costs. This unit sets the standard for effective, effortless air quality management.
Know before you buy
This unit is designed for whole-home coverage in spaces up to 4,200 square feet. It is best suited for larger homes where consistent moisture levels are needed across multiple rooms.
No, the included automatic digital humidistat monitors indoor conditions and adjusts output accordingly. It is designed to maintain your home within the ideal 30-50% humidity range without constant manual input.
Unlike bypass models that rely solely on your furnace's blower, the Aprilaire 700 features an internal fan to pull warm air directly through the unit. This allows for more efficient moisture evaporation and higher output capacity.
The system is designed for low maintenance, requiring an annual replacement of the water panel (wick filter) to ensure optimal performance. You should also perform a quick inspection of the water distribution tray at the start of each heating season.
While the installation is straightforward for those comfortable with basic HVAC ductwork and electrical wiring, it does require cutting into your furnace plenum. If you are not experienced with HVAC modifications, we recommend hiring a professional to ensure a proper, airtight seal.
The Aprilaire 700 is highly effective with forced-air systems. However, because it relies on heat to evaporate moisture, it performs best when paired with a furnace that generates sufficient warm air; performance may be reduced if your system produces lower air temperatures.
Still have a question?
Ask Hayley anything about this product before you decide.