Do I Need a Dehumidifier?

In an earlier blog, I wrote about the importance of running a humidifier in the winter time. (Benefits of a Humidifier)  The flip side of that is the importance of running a dehumidifier in the summer time.  A dehumidifier cools the ambient air in the environment, usually basement areas.   In the process of cooling the air, moisture absorbed in the air is condensed into a collection reservoir.   The reservoir can have an automatic overflow shut-off or can be configured to flow into a drain or a sump.  It can also be manually emptied when full.

The question to ask is why do I need it?  In the typical basement which is below grade, there are several factors at play.  The ground contains moisture and the old stone, block or cement foundations are porous and allow moisture into the basement.  Excess moisture creates dampness, and could lead to mold or mildew.  Any items of value such as furniture or books will eventually be damaged or destroyed by the moisture.  Your basement will also smell damp and the odor will carry through your home.

Another factor is relative humidity or dew point as referred to by your local weatherperson.  On humid days and in cool basements, dew point is important.  A high dew point will result in moisture condensing on the cool basement walls, causing the same potential condition identified above.   Dew point is the temperature at which saturated air will condense on a surface.  A lower dew point indicates there is less moisture in the air.

A dehumidifier can be the solution.  It runs on electricity and works like a refrigerator or an air conditioner.  Coils with gas inside are cooled and provide a surface for the “wet” air to pass over.   The moisture is extracted out of the air and condensed on the cold coils.  Water drips into a collection reservoir and you would be surprised at how quickly it fills up.  If the water is not automatically drained out, then it would be best to have a device that automatically shuts off when the reservoir is full.  Otherwise the excess water will spill over onto the floor of the basement.

If a home has no basement or is built on a slab, you may also need a dehumidifier as high humidity will condense on the cool floor.

Prices for effective dehumidifiers are typically between $150 and $350.  Buying a recognized brand name is wise as the company will hopefully be there if there is a problem or a repair needed.

We tend to hang onto things longer and when we run out of space, we will store things in the basement.  If something is of value, either sentimental or monetary, you should protect its value by using a dehumidifier.  A dehumidifier is a wise investment.

About the author: Roland Spadafora is one of the Broker Owners at RE/MAX Legacy.  He can be contacted through his website at www.spadaforateam.com