Run time of my energy efficient furnace...relates to my whole home humidifier? How?

Thursday, March 11, 2010 by Aprilaire Team
Consumer question submitted to Aprilaire:

My Aprilaire 550 is running every time the furnace comes on and we are not getting an improvement on the low humidity. Our house is about 1200 square feet. Any suggestions? We have installed an energy efficient furnace recently.

Aprilaires' response:
Thank you for contacting us with regards to your model 550 Humidifier. The energy efficient furnace may be running less than the previous model. By limiting the run time of the 550, it's performance over an hour will drop. Is your humidifier fed by hot water or cold water? The 550 will perform better with water temperature as close to 140°F as possible. This will also give you the added benefit of being able to run the humidifier with just your furnace fan. You may need to speak to your contractor to ensure it's properly wired to run with the heat and with the fan, but if it is, you can turn your thermostat's fan switch to the On position, the water provides the heat, and you can get humidity 24 hrs/day or until your desired set point is reached.

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