Whole-House Humidifier Pros and Cons: Are Humidifiers Worth It?

Breathe more comfortably during the dry season

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Photo: Catherine Delahaye / Stone / Getty Images Plus / Getty Images
Dad playing with children on the sofa
Photo: Catherine Delahaye / Stone / Getty Images Plus / Getty Images
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If you’re considering installing a whole-house humidifier, you’re likely wondering about its pros and cons. These humidifying systems cover your entire home, while portable ones are for single rooms. Let’s review the benefits and drawbacks of whole-house humidifiers, and when to hire a profession to install or repair one.

Whole-house humidifier illustrated, including the humidistat, by-pass, and the humidifier

What Is a Whole-House Humidifier? 

A whole-house humidifier is designed to add moisture to your entire home and efficiently manage its moisture levels. The complex system is incorporated into your existing heating and cooling unit, which allows it to push the moisture through the ductwork.

Humidifier attached to furnace air duct
Photo: Marvin Samuel Tolentino Pineda / iStock / Getty Images Plus / Getty Images
ProsCons
Enhanced air qualityHigh upfront costs
Can boost home valueRisk of mold and mildew
Better humidity controlProfessional installation costs

Pros of a Whole-House Humidifier

There are several benefits to installing a whole-house humidifier, which can help you decide if it’s the right move for your needs. 

1. Improved Air Quality

When moisture is added into the air in your home, it helps reduce harmful dust and allergens that are present in dry conditions. Improving your home’s indoor air quality is beneficial to anyone who is prone to allergies or has upper respiratory issues. 

2. Added Energy Efficiency

Higher humidity levels can make your home feel warmer, which could lead to less output from your heating unit and lower overall heating costs. 

3. Low Maintenance 

Since a whole-house humidifier is integrated into your heating and cooling system, there’s less need to maintain it outside of a HVAC inspection. Plus, you don’t have to continually clean or add water to it like you would a portable humidifier or air purifier

Cons of a Whole-House Humidifier

Just as there are benefits to a whole-house humidifier, there are some downsides to keep in mind when evaluating the purchase. 

1. High Upfront Cost 

The cost for a whole-house humidifier ranges from $400 to $760, including installation services. Your total bill will range depending on the type and size humidifier you need to service your entire home. 

2. Potential Over-Humidification 

While extra moisture in dry air can be beneficial, too much moisture can lead to more significant problems, such as the risk of mold growth and damage to your home’s structure or furnishings. 

3. Water Quality Problems

For the water added into your air to be helpful instead of harmful, you will need access to high-quality water. If your water source is contaminated or contains impurities that can add harmful elements into your air, you may want to consider a different route for a humidifier.

Alternatives to Whole-House Humidifiers

Not sure a whole-house humidifier is right for your home? Consider these alternative options:

  • Portable humidifier: If you only need to add moisture to a single room or area, consider purchasing a portable variety, which is much less expensive and easy to set up.

  • Vaporizer: A vaporizer is a small appliance that uses heated water to create a fine mist to add moisture to the air.

Is a Whole-House Humidifier Right for You?

Whole-house humidifiers are a worthwhile investment for homeowners who are prone to allergies or other respiratory issues. If you live in a dry climate, a whole-house humidifier can circulate some much-needed moisture throughout the home.

If you live in a wet, rain-heavy climate or your home is prone to moisture-related issues, such as mold or mildew growth, installing a whole-house humidifier may not be a wise decision. Consult a local whole-house humidifier installer who can inspect your home and help you determine whether that type of installation is right for you.

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