How much water does a whole-house humidifier typically use in one day? (1500-2000 sf home) 0-2 gallons 11% 2-5 gallons 22% 15-20 gallons 11% Not sure 55% Next Question Question: How much water does a whole-house humidifier typically use in one day? (1500-2000 sf home) Top Answer (55% of 9 votes): Not sure. Answer: 2-5 gallons Explanation: This answer depends on how dry your air is. Arizona's Best Heating & AC, Inc. Answer: Not sure Explanation: based on many factors HVAC and More Answer: Not sure Explanation: . Alpha Cleaning Solutions, LLC Next Question Find Local Pros Free Whole House Humidifier Installation Cost Estimates Related Questions How Much Does It Cost to Put in a Furnace Humidifier? Can I install a whole house humidifier without a forced air system?Top answer: In some cases Do I need a permit to install a central humidifier?Top answer: In some cases Who can install a whole house humidifier? Can I install a whole house humidifier if I have a heat pump?Top answer: In most cases Related Topics Whole House Humidifier Installation