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Aprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat vs AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier

Updated August 2026The AprilAire 720MKZ offers better value with lower cost, easier maintenance, and a solid warranty, making it the preferred choice for most homeowners.

The AprilAire 720MKZ offers better value with lower cost, easier maintenance, and a solid warranty, making it the preferred choice for most homeowners.

Why Aprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat is better

High Capacity

Model 865 adds up to 34.6 gallons of moisture per day.

Steam Technology

Model 865 uses high-output steam humidification.

Brand Reputation

Both are from Aprilaire, a trusted brand.

Why AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier is better

Lower Price

720MKZ is priced at C$817.99.

Water Efficiency

720MKZ produces 60% less wastewater.

Ease of Maintenance

720MKZ features a one-piece HydroCore cartridge for quick replacement.

Overall score

Aprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat
75
AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier
88

Specifications

SpecAprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier
BrandAprilaireAprilaire
TypeSteamEvaporative
Fan TypeWall MountHybrid
Control TypeNot SpecifiedManual
EfficiencyStandard2X More

Dimension comparison

Aprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier

Overview of the Products

In this comparison, we will look at the Aprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat and the AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier. The Model 865 is priced at C$1,909.43, while the 720MKZ is more affordable at C$817.99. Each of these humidifiers caters to different needs and home environments, making it essential to consider their unique features before making a purchase.

Humidification Capacity

The Aprilaire Model 865 boasts an impressive output, adding between 11.5 to 34.6 gallons of moisture into the air per day, depending on voltage and installation. This high-output steam humidifier is ideal for homes in arid climates, covering up to 6,200 square feet. In contrast, the AprilAire 720MKZ delivers a maximum of 21 gallons per day. While the 720MKZ is effective for larger homes, it does not match the upper capacity of the Model 865, which is particularly beneficial for those requiring significant humidity control.

Design and Installation

The Model 865 features a wall mount fan that pushes humidified air into living spaces, making it suitable for homes lacking a central HVAC duct system. This design is particularly advantageous for smaller setups. On the other hand, the 720MKZ offers a versatile reversible design, allowing for flexible installation in tight spaces. It can be configured to fit either standard or horizontal setups, creating options for various home layouts. This adaptability makes the 720MKZ easier to install in diverse environments compared to the more fixed installation approach of the Model 865.

Environmental Impact

When it comes to sustainability, the AprilAire 720MKZ stands out with its 60% less wastewater production compared to the AprilAire 700 humidifier. The innovative recirculation valve helps recycle water, improving performance while decreasing water waste. This feature not only promotes better resource management but also contributes to lower utility bills. Conversely, the Model 865 does not mention any specific features related to water efficiency, making the 720MKZ a more environmentally friendly option.

Maintenance and Ease of Use

The Model 865 does not provide specific details about its maintenance requirements, leaving potential users uncertain about upkeep. In contrast, the 720MKZ simplifies maintenance with its one-piece HydroCore water panel disposable cartridge, designed for quick replacement. The manual control included with the 720MKZ is also user-friendly, allowing easy adjustments to humidity levels. Overall, the 720MKZ offers a more convenient experience regarding maintenance and user control, which may be a crucial factor for many homeowners.

Warranty and Reliability

Both humidifiers come from Aprilaire, a well-regarded brand in indoor air quality solutions. The Model 865 does not specify a warranty period, which could raise concerns for potential buyers about long-term reliability. However, the 720MKZ is backed by a 5-year warranty, ensuring peace of mind for consumers. This reliability factor may sway buyers toward the 720MKZ, as it offers guaranteed support and service over an extended period.

Efficiency of Humidification

The efficiency of the 720MKZ is highlighted by its hybrid fan, which maximizes even air distribution across the panel, resulting in 2X more evaporative efficiency compared to the AprilAire 700 humidifier. This increased efficiency means that the 720MKZ can quickly balance moisture levels in larger homes. While the Model 865 provides high-output steam humidity, the operational efficiency of the 720MKZ could make it a more effective choice for users looking to maintain consistent humidity levels rapidly.

Price Comparison

The price difference between the two humidifiers is significant, with the Model 865 retailing at C$1,909.43 and the 720MKZ priced at C$817.99. This substantial cost disparity makes the 720MKZ a more budget-friendly option without sacrificing essential features, such as high output and efficient operation. For homeowners looking to improve indoor air quality without breaking the bank, the 720MKZ presents a compelling case in terms of value for money.

Which should you buy?

Ultimately, the choice between the Aprilaire Model 865 and the AprilAire 720MKZ hinges on individual needs and home conditions. If you require high-capacity steam humidification for a large area, the Model 865 may be worth the investment. However, for those seeking a cost-effective solution with lower water waste, easy maintenance, and a solid warranty, the 720MKZ is the clear winner. Its combination of features and affordability makes it an excellent choice for most homeowners.

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Aprilaire Model 865 Whole House Steam Humidifier with Fan Pack for Radiant Heat vs AprilAire 720MKZ Whole House Fan Powered Evaporative Humidifier | versusfinder