Thinking I need a bigger humidifier...

Thursday, February 9, 2012 by Aprilaire Team
Consumer question:

The furnace contractor installed the Aprilaire 500 humidifier for a home that is over 5500 sq ft. In reviewing the product information on your website it appears the contractor should have installed the 700 series. Am I correct in my assumption?

Aprilaires' response:

Thank you for contacting us with regards to your model 500 Humidifier. If this unit is the only source of humidification you have in your home, it will likely not be sufficient. While a 700 has 50% greater capacity, it is still only designed to handle 4200 sq ft. Our recommendation would be either to have two units in your home or one Model 800 steam humidifier. It can operate with any fan cycle of your furnace, not just the heat cycles, and humidify up to 24 hours/day. Please visit us online at for more information on this model or any of our other product lines.
We appreciate the opportunity to be of assistance.

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