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The Comprehensive Guide to Installing a Whole-Home Dehumidifier

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Welcome to your go-to resource for all things related to installing a whole-home dehumidifier. Are you tired of dealing with excessive humidity in your living space? If so, you’ve come to the right place! This comprehensive guide provides step-by-step instructions and expert tips on successfully installing a whole-home dehumidifier.


Whether you’re a seasoned DIY enthusiast or a first-time homeowner, this article got you covered. So, let’s dive in and turn your home into a comfortable oasis free from excess moisture.

The Comprehensive Guide to Installing a Whole-Home Dehumidifier


Are you tired of dealing with excessive humidity in your home? Do you constantly battle mold, musty odors, and uncomfortable living conditions? If so, installing a whole-home dehumidifier or portable dehumidifier can be the solution you’ve been looking for. In this comprehensive guide, this article will walk you through the process of installing a whole-home dehumidifier and provide you with all the information you need to make an informed decision.

Why Install a Whole-Home Dehumidifier?

Before we dive into the installation process, let’s first understand why installing a whole-home dehumidifier is necessary. High humidity levels can lead to various issues, including mold growth, structural damage, and health problems. By installing a whole-home dehumidifier, you can effectively control the relative humidity in your house, ensuring a comfortable and healthy living environment.


The Installation Process

Installing a whole-home dehumidifier involves a series of steps that must be followed to ensure proper functioning. Here is a step-by-step guide to help you through the process; you will need an HVAC professional to do this, but knowing how the installation goes is a good idea. Or, you can make a decision and buy a portable dehumidifier if that is the right solution for you:

  1. Assess your specific needs: Each house’s system is unique, so it’s essential to determine the correct size and capacity of the dehumidifier you need. Consider factors such as the size of your home, the level of humidity you’re experiencing, and any specific requirements you may have.

  2. Determine the best location: The dehumidifier should be installed in a central location of your home, preferably near the HVAC system. This allows the air to circulate efficiently and ensures that all areas of your home are adequately dehumidified.

  3. Properly integrate with the HVAC system: The dehumidifier works similarly to an HVAC system, with air passing over the evaporator coil to remove moisture. To ensure consistent performance, it should be tied into the 4-ton and 2-ton unit supply plenums.

  4. Install wired controls: An attic controller connected to the return should control the dehumidifier. Wired controls provide easy access and allow you to adjust the settings as needed.

  5. Consider drainage options: Proper drainage is crucial for efficiently operating the dehumidifier. The drainage can often be connected to the heat pump water heater’s drain. It is essential to take precautions to avoid backups and ensure smooth operation.

  6. Install a backdraft damper: A backdraft damper should be installed to prevent air leakage. Some slight leakage is accepted to prevent the damper from getting stuck and causing issues.

  7. Test and check safeties: Before finalizing the installation, it is vital to check the safeties of the dehumidifier. This ensures that the unit operates safely and effectively.

  8. Test the drainage: Once the installation is complete, it is crucial to test the drainage system to ensure proper functionality. This will prevent any issues related to water backup or leakage.

It is important to note that each house’s installation may vary slightly, so it is necessary to consult professional installers or refer to the manufacturer’s instructions for specific guidance.


Installing a whole-home dehumidifier can significantly improve your home’s comfort and air quality. Using a proper and suitable dehumidifier for your needs allows you to enjoy a healthier and more pleasant living environment. Don’t let excessive humidity spoil your home; take control and install a dehumidifier today!

Excessive humidity can lead to issues such as mold and mildew growth, musty odors, and even structural damage to your home. Installing a whole-home dehumidifier can effectively remove excess moisture from the air, reducing these potential problems and creating a more comfortable indoor environment.

In addition to improving comfort and air quality, a whole-home dehumidifier can also help reduce energy costs by making your air conditioning system more efficient. When the air is less humid, it feels cooler, allowing you to set your thermostat higher and feel comfortable. This can result in significant energy savings over time.

With a whole-home dehumidifier, you can say goodbye to clammy air, musty odors, and the potential for mold and mildew growth. Instead, you can enjoy a dry, comfortable, healthy living environment for you and your family. So don’t let excessive humidity control your home. Take charge and invest in a whole-home dehumidifier today!



  1. Can I install a whole-home dehumidifier myself, or do I need professional assistance?
    Installing a whole-home dehumidifier is a complex process that involves knowledge of HVAC systems and electrical wiring. You need to hire a professional to ensure the proper installation and functionality of the whole-home dehumidifier.

  2. How long does the installation process typically take?
    The installation time can vary depending on various factors, such as the size of your home, existing ductwork, and specific requirements. On average, the installation process can take a few hours to a full day.

  3. Will installing a whole-home dehumidifier increase my energy bills?
    A whole-home dehumidifier is designed to work efficiently and should not significantly increase your energy bills. It can help your HVAC system operate more efficiently, potentially reducing energy costs in the long run.

  4. How often do I need to clean or maintain the dehumidifier?
    Regular maintenance is essential for optimal performance. It is recommended to clean the filters regularly and have the unit inspected annually by a professional. This ensures that the dehumidifier continues to work effectively and prolongs its lifespan.

  5. What size of dehumidifier do I need for my home?
    The size of the dehumidifier depends on the square footage of your home and the level of humidity you’re dealing with. It is recommended to consult a professional to determine the appropriate size for your specific needs.

Secure installation by an experienced professional ensures that your whole-home dehumidifier operates effectively and efficiently, providing you with a comfortable and healthy living environment.

Last Updated on January 28, 2024 by Cool Components For House


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