Aprilaire 500M Humidifier

The Aprilaire 500M Humidifier is a high-performance 12gpd bypass humidifier designed to maintain optimal indoor air quality in homes up to 3,000 square feet. This compact furnace humidifier integrates directly with your existing HVAC system, utilizing a manual humidistat for precise control over your environment's moisture levels. By alleviating dry air symptoms, the Aprilaire 500 protects your wood flooring, cabinetry, and electronics from damage caused by low humidity. The unit features a built-in bypass damper, which simplifies installation by requiring fewer parts and reducing labor time. Engineered for efficiency, this whole-home humidifier uses a genuine Aprilaire Water Panel to ensure maximum evaporation and reliable performance. Whether you are looking to improve respiratory comfort or preserve your home’s interior, the Aprilaire model 500M provides a cost-effective, durable solution for consistent residential humidity control during the heating season.

• Efficient Moisture Delivery: Provides up to 12 gallons of moisture per day to maintain healthy humidity levels throughout the entire home.
• Manual Control: Features a manual humidifier control for straightforward, user-defined adjustments based on outdoor temperature changes.
• Space-Saving Design: The compact footprint allows for versatile installation on the supply or return plenum of forced air heating systems.
• Hardware Protection: Prevents wood shrinkage and cracking in furniture and musical instruments while reducing static electricity.
• Simplified Maintenance: Designed for easy annual maintenance, generally only requiring a quick water panel replacement.

What is the difference between the 500M and the 500?
The "M" designation indicates this model includes a manual humidistat, whereas the standard 500 typically includes an automatic digital control. Both units share the same 12-gallon evaporative capacity.

Can this be installed on a heat pump system?
Yes, the Aprilaire 500M is compatible with most HVAC systems, including heat pumps, though performance is optimized when connected to a hot water source in lower-plenum-temperature applications.

How often should I change the filter?
For peak HVAC humidifier performance, the evaporative water panel should be replaced at least once per heating season to prevent mineral buildup and ensure airflow efficiency.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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