Aprilaire Whole House Automatic Power Humidifier 700A

The Aprilaire Model 700 Whole-House Humidifier features truly automatic control, so there's never a need to manually control the humidifier—though it can be installed in manual mode, if desired.

Complementing any central heating and cooling system, the Aprilaire Model 700 Whole-House Humidifier:

• Utilizes an outdoor temperature sensor for monitoring even the slightest changes in outdoor temperature
  

• Delivers up to 50% more moisture in comparison to competitive units
  
• Has an evaporation capacity of 0.75 gallons per hour—among the highest capacity humidifiers sold
  
• Humidifies tightly-constructed homes up to 4,200 square feet in size