Previously, we discussed whole-house vs. portable dehumidifiers and recommended whole-house dehumidifiers as an affordable option because they do a better job of extracting excess moisture and removing humidity from your home. So how do you choose the right dehumidifier? Here are seven points to keep in mind as you shop for your new whole-house dehumidifier.

Dehumidifier Size

The most important consideration is the size of the dehumidifier, which indicates the dehumidifier’s capacity.  Size depends on a few factors:


The recommendation would be to have a dedicated return and to exhaust the dehumidifier into the HVAC supply, allowing the blower on the HVAC unit to distribute the dehumidified air into the home.  If not, a model with a “circulation” mode will allow you to set the dehumidifier to always circulate air.

Noise and heat

Units will generate both noise and heat.  So where you install the unit will require some thought.



Some whole house dehumidifiers can be moved.  While that may sound attractive, remember they may be heavy, and they will need a place to drain.  It is generally better to choose a permanent installation.


Check with your licensed electrical contractor to make sure the circuit you will use has sufficient amperage. If you choose a dehumidifier that requires more electricity than what is available, you will also need to schedule electrical work.


Some dehumidifier units come with removable, washable filters.  If your dehumidifier unit has its own return, you will want a bigger MERV filter.  MERV filters are designed to capture particles that could otherwise clog the coils of your system.


Like everything else these days, several dehumidifier models have Wi-Fi capability.  Smart features will allow you to control the unit, set your desired humidity level, as well as turn the dehumidifier on or off remotely.

Ravinia Plumbing, Sewer, Heating & Electric Can Help You with Whole House Dehumidifiers

Ravinia Plumbing’s HVAC professionals can help you select and then install the whole house dehumidifier that is right for you.  We’ve been in business since 1928 (that’s 95 years!), and we’ve made a name for ourselves as one of the most trusted and reliable HVAC, plumbing, drain and sewer and electrical companies in Chicagoland. Contact us today to schedule an appointment.