Will one Aprilaire Dehumidifier cover my whole home? If humid air rises why install in downstairs? Wouldn't it be better to install upstairs.

Monday, February 7, 2011 by Aprilaire Team
Consumer question:

Will one Aprilaire Dehumidifier cover my whole home?  If humid air rises why install in downstairs? Wouldn't it be better to install upstairs.


Aprilaires' response:

Thank you for contacting us about your dehumidifier questions. Your logic does make sense in wanting to add a dehumidifier upstairs. However, humidity starts in areas that are darker and with less air movement which are usually basements. If the unit is put upstairs than we are simply containing the humidity level upstairs and not at the root source down stairs. If you can keep the humidity contained downstairs than the upstairs levels will not "see" this humidity.


Comments for Will one Aprilaire Dehumidifier cover my whole home? If humid air rises why install in downstairs? Wouldn't it be better to install upstairs.

Sunday, February 9, 2014 by Richard Hillel:
My house has two heating systems. One is forced hot air with about 2800 Sq. ft. the other part is steam with about 800 sq. ft. I have several questions. I am leaning towards your model 700 (instead of the 500) b/c i want the humidity to dissipate to the other side of the house where there is no humidification, though steam heat is not as drying. I would think the bigger unit (model 700) would not have to work as hard and can handle the larger volume. Any disadvantage to using the bigger unit. I was going to install it on the plenum which is just above the AC evaporator coil which sits on the furnace. The plenum sends two supply ducts soon after. Also would you use a hot or a cold water feed to the humidifier when installed in the plenum. Thank you for your help.
Monday, February 10, 2014 by Kevin:
Thank you for contacting us with your question. The 700 humidifier would work best on the supply side or heated side of your furnace. We recommend using hot water on most installations because it does give a boost to the output of the humidifier so it does not have to run as long. We recommend using a bigger unit because it would give the humidifier an opportunity to satisfy the humidity level in the home and allow the humidifier to turn off. Thank you for giving us the opportunity to be of assistance.

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