Have you ever noticed a musty smell in your home or dampness on your walls? It may be due to high humidity levels within your house. Excess humidity not only creates an uncomfortable living environment but can also lead to health issues and property damage. A reliable solution to this problem is a dehumidifier. But, can a dehumidifier work for the whole house? In this article, we will dive into the question and explore the benefits of using a dehumidifier to maintain a comfortable and healthy living environment.

1. Introduction: Understanding the Basics of Dehumidifiers

What is a Dehumidifier?

A dehumidifier is an electrical appliance that helps to lower the humidity levels in a room or an entire house. It absorbs excess moisture from the air and collects it in a storage tank or through a drainage system. These devices are equipped with a fan that blows the air through a refrigerated coil, which causes the water vapor to condense and turn into liquid form. The dry air is then released back into the room, effectively reducing the overall humidity level.

How do Dehumidifiers Work?

Dehumidifiers work by creating an environment that is conducive to drawing moisture out of the air. They use a compressor and a fan to pull the air into the dehumidifier and pass it over cold coils. The moisture in the air condenses on the coils, which then drips down into a collection tank or directed to a drainage system. The dry air is then reheated and sent back into the room. This cycle of drawing in moist air and expelling dry air continues until the relative humidity of the room or house is brought down to the desired level.

Why use a Dehumidifier?

High humidity levels can lead to many discomforts and health issues such as allergies, mold, and musty smells. A dehumidifier can improve overall indoor air quality by removing excess moisture, leading to reduced mold, mildew, and bacterial growth. Dehumidifiers can also make it easier to breathe for people with asthma, allergies, and other respiratory problems. Moreover, they help to prevent structural damage to your home caused by excess moisture, including warped floors, mildewed walls, and ceilings.

In summary, a dehumidifier can be a beneficial investment for your whole house and improve the overall air quality of your home. In the next section, we will discuss what size dehumidifier you need for your whole house.

2. What Size Dehumidifier Do You Need for Your Whole House?

Dehumidifiers are designed to remove moisture from the air, which makes them a great solution for homeowners who are dealing with high levels of humidity in their homes. But when it comes to choosing a dehumidifier for your whole house, size really does matter. Here’s what you need to know about selecting the right-sized dehumidifier for your home.

Calculating the Proper Size for Your Home

The first thing you need to do is calculate the size of your house and the total area that needs to be dehumidified. The best way to do this is by measuring the square footage of your house and taking note of any areas that are particularly damp or humid, such as basements or bathrooms.

Once you have this information, you can use it to determine the appropriate size of your dehumidifier. You’ll want to ensure that the unit is powerful enough to effectively remove moisture from the air in all areas of your home, without wasting energy or creating excess noise.

Sizing Chart for Dehumidifiers

To determine the appropriate size of your dehumidifier, you can use the following chart as a guide:

  • Up to 1,000 square feet: 30 pints per day
  • Up to 2,000 square feet: 40 pints per day
  • Up to 3,000 square feet: 50 pints per day
  • Up to 4,000 square feet: 70 pints per day
  • Up to 5,000 square feet: 90 pints per day

Keep in mind that these are general guidelines and your specific needs may vary depending on your geographical location and the extent of your humidity problems.

Tip: A good way to ensure that you are choosing the appropriate size of your dehumidifier is by consulting a professional. You can contact a local HVAC company or a dehumidifier manufacturer for advice on the best unit for your home.

By calculating the square footage of your home and using a sizing chart as a guide, you should be able to choose the appropriate size of dehumidifier for your whole house. This will help ensure that your home remains comfortable and free of excess moisture, without wasting energy or creating unnecessary noise.

3. Pros and Cons of Using a Dehumidifier for the Whole House

A dehumidifier works by removing moisture from the air, which can help prevent mold, mildew, and other moisture-related issues. While a portable dehumidifier can work well for smaller spaces, a whole house dehumidifier can provide many benefits for your entire home. However, like any appliance, there are pros and cons to using a whole house dehumidifier. Let’s take a closer look.


  • Improved Indoor Air Quality: A whole house dehumidifier can help reduce the amount of allergens and pollutants in the air, leading to a healthier living environment.
  • Lower Energy Bills: Running a dehumidifier can reduce the amount of work your air conditioning system has to do, resulting in lower energy bills.
  • Prevent Property Damage: With lower humidity levels, you can prevent damage to your walls, floors, and furniture that can occur due to excess moisture.


  • Higher Initial Cost: Whole house dehumidifiers can be more expensive than portable units, and installation costs can add to the overall cost.
  • Maintenance: Maintaining a whole house dehumidifier requires more effort than a portable unit, including regular cleanings and possible filter replacements.
  • Noise: Some models can be loud, which can be disruptive to your daily life.

Ultimately, the decision to use a whole house dehumidifier comes down to your specific needs and budget. While the initial cost may be higher, the long-term benefits can make it a worthwhile investment. Consider factors such as the size of your home, the level of humidity in your area, and your overall health and comfort when making your decision.

4. Installation Tips for a Whole House Dehumidifier

Installing a whole house dehumidifier may seem like a daunting task, but with some basic knowledge and a few installation tips, the process can be relatively straightforward. Here are some key tips to keep in mind:

1. Choose the Right Location

When choosing the ideal location for your dehumidifier, it’s important to consider several factors. Look for a location that’s central to your home’s living areas, as this will ensure optimal airflow and dehumidification. Additionally, your dehumidifier should be situated near a drain or sump pump to facilitate easy draining.

2. Install the Dehumidifier Properly

To ensure your whole house dehumidifier is working effectively, it’s essential to install it correctly. Follow the manufacturer’s guidelines closely, including any recommended clearances and installation requirements. Be sure to also use the right tools and equipment, such as a level and mounting hardware.

3. Connect to Your HVAC System

One way to use your whole house dehumidifier more efficiently is to connect it to your HVAC system. This allows your dehumidifier to work in tandem with your air conditioning, which helps to reduce energy costs and improve indoor air quality.

By following these installation tips, you can get the most out of your whole house dehumidifier and enjoy a more comfortable and healthy home environment.

5. Maintenance and Upkeep for a Whole House Dehumidifier

Once you have installed a whole house dehumidifier, it is essential to maintain and keep it in good working condition to get the best possible results. Proper maintenance and upkeep not only prolong the life of your dehumidifier but also ensure your home stays free of moisture.

Clean the Filter Regularly
The filter is one of the essential parts of the dehumidifier that traps air and removes moisture from it. Over time, dirt, dust, and debris can clog the filter, leading to reduced performance and increased energy use. Therefore, it is necessary to clean the filter regularly, at least once a month, to maintain optimal efficiency.

Check for Leaks and Blockages
Sudden spikes in your energy bill can be a sign of leakage or blockages in the dehumidifier system. It is necessary to conduct regular checks on the water collection container, drainage system, and power supply to ensure that they are working correctly. Blocked or leaking pipes can lead to water damage and mold growth, so it is essential to perform checks now and then.

Professional Maintenance
To keep your whole house dehumidifier in top-notch condition, it is necessary to schedule periodic professional maintenance checks. During these visits, a professional technician will inspect the unit for faults and carry out necessary cleaning and repairing tasks that may not be possible for regular maintenance.

In conclusion, proper maintenance and upkeep significantly improve the performance of your whole house dehumidifier and guarantee a healthier living environment. Make sure to follow the manufacturer’s instructions for maintenance and conduct regular checks to prolong the life of your dehumidifier.

6. How to Use a Whole House Dehumidifier in Conjunction with Your HVAC System

A whole-house dehumidifier can be integrated into your HVAC system to provide greater control over the humidity level in your home. This is especially helpful if you live in a humid climate or have a ventilation system that doesn’t efficiently remove moisture from the air. Here are some tips on .

1. Install the Dehumidifier in Your HVAC System

To get started, you’ll need to install the whole-house dehumidifier in the return ductwork of your HVAC system. This is typically done by a professional HVAC technician. The dehumidifier will remove moisture from the incoming air before it is distributed throughout your home.

2. Set the Desired Humidity Level

Once the dehumidifier is installed, you can set the desired humidity level. Many whole-house dehumidifiers come with built-in hygrometers that measure the humidity level in your home. You can set the dehumidifier to maintain a specific humidity level, which will turn on and off automatically as needed.

3. Use Your HVAC System’s Fan to Circulate Air

To optimize the effectiveness of your whole-house dehumidifier, it’s best to use your HVAC system’s fan to circulate air throughout your home. This will help ensure that the dehumidified air is evenly distributed and that your entire home benefits from the lowered humidity levels.

4. Use Your Dehumidifier in Conjunction with Other Strategies

While a whole-house dehumidifier is an effective way to lower the humidity level in your home, it’s not the only strategy you should rely on. You can also use other strategies to reduce moisture, such as fixing leaky pipes or using a ventilation system to remove excess moisture from bathrooms and kitchens.

By using a whole-house dehumidifier in conjunction with your HVAC system, you can enjoy greater comfort and improved air quality in your home. With proper installation, maintenance, and operation, your dehumidifier can last for many years and provide reliable performance.

7. Conclusion: Is a Whole House Dehumidifier Right for You?

If you live in a humid place, you know how uncomfortable and harmful high humidity can be. The moisture in the air can cause mold and mildew growth, which can lead to respiratory problems and other health issues. Not to mention, it can make you feel sticky, sweaty, and uncomfortable. A dehumidifier is a great way to combat these issues, but can a dehumidifier work for the whole house?

After reading about the basics, pros and cons, installation, and maintenance tips of using a dehumidifier for the whole house, you may be wondering if it’s the right solution for your home. Here’s what to consider:

Size Matters

First, you’ll need to determine the size of the dehumidifier you need for your house. This will depend on the square footage of your home, the level of humidity you’re dealing with, and other factors such as the number of people living in the house. If you have a small house, a portable dehumidifier may suffice, but for larger homes, a whole house dehumidifier is a better investment.

Pros and Cons

Using a dehumidifier for the whole house has its benefits, such as improved air quality, reduced allergens, and increased comfort. However, it also has some drawbacks, including installation costs and higher energy bills. It’s important to weigh the pros and cons to decide if it’s worth it for your household.

Consult a Professional

If you’re unsure whether a whole house dehumidifier is the right fit for your home, consult a heating and cooling professional. They can assess your needs and recommend a solution that works best for you.

Overall, a whole house dehumidifier is a great investment if you live in a humid climate or have moisture issues in your home. It’s important to do your research, determine the size you need, and consider the pros and cons before making a decision.

People Also Ask

1. How does a whole house dehumidifier work?

A whole house dehumidifier is connected to the HVAC system and works by removing moisture from the air as it passes through the ducts. It has a larger capacity than portable units, making it suitable for larger homes.

2. Is a whole house dehumidifier worth it?

A whole house dehumidifier is worth it if you live in a humid climate or have a large home. It can improve indoor air quality, prevent mold growth, and lower energy bills by reducing the workload on HVAC systems.

3. How much does it cost to install a whole house dehumidifier?

The cost of installing a whole house dehumidifier depends on the size of your home and the complexity of the installation. On average, it costs between $1,500 and $2,500 for professional installation.

4. Can a dehumidifier replace air conditioning?

A dehumidifier cannot replace air conditioning, as it only removes moisture from the air and does not cool the air. However, it can work in conjunction with air conditioning to provide more comfortable indoor temperatures.

5. What size dehumidifier do I need for my whole house?

The size of the dehumidifier you need for your whole house depends on the size of your home, the level of humidity, and the number of occupants. A professional HVAC technician can help you determine the appropriate size.


In conclusion, a whole house dehumidifier can be an effective solution for reducing moisture levels in large homes and humid climates. While it may require a higher upfront cost for installation, it can have long-term benefits for improving indoor air quality and reducing HVAC-related energy costs. It’s important to consider factors like home size, humidity levels, and installation costs before making a purchase decision.