Best Practices for Running Your Dehumidifier


If you live in a hot, humid climate–which can be unbearable during the summer months–dehumidifiers are an excellent addition to your home. Year-round moisture can present a number of problems, like mold and rot, for example, so it’s important to know how to run your device efficiently. In this post, an HVAC installation contractor shares some of the best practices for operating your dehumidifier.

When to Use a Dehumidifier

  • Place dehumidifiers in damp, musty-smelling rooms. A relative humidity of 40-50 percent is ideal. More than that can result in mold growth, and any value below 30 percent can lead to structural damage.
  • Dehumidifiers are most beneficial to people with respiratory problems. These include asthma, allergies and colds. Maintaining an ideal level of humidity can help reduce their symptoms.
  • If you live in a humid subtropical climate, install a dehumidifier in your bathroom, basement and attic — places where moisture-filled activities usually occur, says a heating expert.

How to Run a Dehumidifier

  • Don’t operate the device in a larger space than recommended. Make sure to close the windows and doors in the room where you run the dehumidifier. Moisture coming from outside can put a strain on your unit.
  • Plug the device into a grounded outlet. It’s best to avoid using extension cords, as they can pose a fire hazard due to overheating.
  • Don’t move the dehumidifier from a cold area to a warm area too quickly. This is to prevent condensation from forming inside the unit. Wait at least 10 minutes to switch the device back on after turning it off.

You can count on Custom Air Systems for heating and air conditioning solutions. Our certified technicians are committed to delivering high-quality products and workmanship to ensure the comfort and satisfaction of our customers in Manvel, TX. Call us at (281) 426-0067 or fill out our contact form to request a free estimate.