AprilAire 500 12-gal. Whole-House Small Bypass Evaporative Humidifier with Autom vs AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier
Updated August 2026 — The AprilAire 720MKZ is the superior choice for larger homes with its higher capacity and efficiency features, while the AprilAire 500 is more budget-friendly for smaller spaces.
The AprilAire 720MKZ is the superior choice for larger homes with its higher capacity and efficiency features, while the AprilAire 500 is more budget-friendly for smaller spaces.
Why AprilAire 500 12-gal. Whole-House Small Bypass Evaporative Humidifier with Autom is better
lower price
C$400.00 vs C$817.99
automatic control
includes Model 60 Automatic Digital Humidistat
smaller size
suitable for homes up to 3,600 sq. ft.
Why AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier is better
higher capacity
21 gallons per day vs 12 gallons per day
better efficiency
60% less wastewater compared to older models
easier maintenance
one-piece HydroCore water panel for quick replacement
Overall score
Specifications
| Spec | AprilAire 500 12-gal. Whole-House Small Bypass Evaporative Humidifier with Autom | AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier |
|---|---|---|
| Brand | Aprilaire | Aprilaire |
| Current Price | C$400.00 | C$817.99 |
| Daily Output | 12 gallons | 21 gallons |
| Water Waste | N/A | 60% less |
| Control Type | Automatic | Manual |
Dimension comparison
Overview of the AprilAire 500 and AprilAire 720MKZ
The AprilAire 500 and AprilAire 720MKZ are two whole-house humidifiers designed to improve indoor air quality, but they cater to different needs and home sizes. The AprilAire 500 is ideal for homes up to 3,600 sq. ft., while the AprilAire 720MKZ boasts a higher output for larger spaces.
The AprilAire 500 delivers 12 gallons of moisture per day, while the AprilAire 720MKZ has an impressive capacity of 21 gallons per day. This difference in output makes the 720MKZ more suitable for larger homes or those requiring faster humidity balance. Both models come with a five-year warranty, ensuring reliability and peace of mind for buyers.
Humidification Performance
When it comes to humidification performance, the AprilAire 720MKZ stands out due to its superior capacity. The 720MKZ can deliver 21 gallons of moisture daily, compared to the 12 gallons per day offered by the AprilAire 500. This makes the 720MKZ a more effective choice for larger spaces or environments where rapid humidity changes are needed.
Additionally, the 720MKZ features a hybrid fan that maximizes air distribution, increasing output and efficiency. This results in 2X more evaporative efficiency compared to similar models like the AprilAire 700. In contrast, the AprilAire 500, while well-suited for moderately sized homes, may not meet the demands of larger households as effectively as the 720MKZ.
Installation and Maintenance
Both humidifiers are designed for easy installation, but they differ in their approaches. The AprilAire 500 comes with a comprehensive installation kit specifically for homes with ducted heating systems, making it straightforward for homeowners to set up. This kit includes all necessary genuine parts and detailed instructions.
On the other hand, the AprilAire 720MKZ offers a more flexible installation with its reversible design, accommodating various configurations, including tight spaces. The 720MKZ also features a one-piece HydroCore water panel that simplifies maintenance, allowing for quick replacements. This focus on easier maintenance makes the 720MKZ a more convenient choice for those who value low upkeep.
Control Features
The control features available on these humidifiers highlight their differences in user experience. The AprilAire 500 includes the Model 60 Automatic Digital Humidistat, which monitors and adjusts humidity levels automatically, providing a hands-off approach to humidity control. This feature is particularly beneficial for homeowners who prefer a set-it-and-forget-it solution.
Conversely, the AprilAire 720MKZ comes with a manual control system that, while simple and reliable, requires more user interaction. This could appeal to homeowners who want to maintain direct oversight over their humidity settings. While both models are effective, the automatic controls of the AprilAire 500 offer a modern convenience that the 720MKZ lacks.
Efficiency and Sustainability
In terms of efficiency, the AprilAire 720MKZ takes the lead with its innovative recirculation valve, which reduces wastewater by 60%. This feature means that less water is wasted during the humidification process compared to older models. The 720MKZ’s design focuses on sustainability, making it a better choice for environmentally conscious consumers.
The AprilAire 500 does not highlight specific efficiency metrics like wastewater reduction but still maintains a solid performance level for homes up to 3,600 sq. ft. However, for users who prioritize sustainability and reduced environmental impact, the AprilAire 720MKZ presents a significant advantage.
Design and Aesthetics
Both humidifiers have a functional design aimed at integrating seamlessly into home systems. The AprilAire 500 is straightforward, focusing on practicality and ease of installation. Its design supports its role as a whole-house humidifier without drawing too much attention.
In contrast, the AprilAire 720MKZ features a more sophisticated design with a hybrid fan that not only enhances performance but also contributes to a visually appealing setup. The versatility in installation options further allows it to adapt to various home designs, which may be appealing to homeowners concerned about aesthetics.
Pricing
The pricing of these two humidifiers reflects their capabilities and features. The AprilAire 500 is priced at C$400.00, making it a more budget-friendly option for those needing moderate humidification for smaller homes. In contrast, the AprilAire 720MKZ is priced at C$817.99, reflecting its higher capacity and advanced features.
This significant price difference can influence purchasing decisions, particularly for homeowners with tighter budgets. However, those needing higher performance and efficiency may find the investment in the AprilAire 720MKZ to be worthwhile in the long run.
Which should you buy?
In conclusion, choosing between the AprilAire 500 and the AprilAire 720MKZ comes down to specific needs and circumstances. The AprilAire 500 is well-suited for smaller homes up to 3,600 sq. ft. and offers automatic humidity control at a more affordable price. However, if you have a larger home or require a faster humidification process, the AprilAire 720MKZ is the superior choice with its higher output, innovative efficiency features, and easier maintenance options.
Ultimately, assess your home size, budget, and personal preferences in humidity control to make the best choice for your indoor air quality needs.
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