What size whole home dehumidifier do I need?
Oct 14, 2025
Hey there! If you're on the hunt for a whole home dehumidifier, you're probably scratching your head wondering, "What size whole home dehumidifier do I need?" Well, you've come to the right place. As a whole home dehumidifier supplier, I've seen it all and I'm here to break it down for you.
Why You Need a Whole Home Dehumidifier
First things first, let's talk about why you might need a whole home dehumidifier in the first place. Excess humidity in your home can lead to a whole bunch of problems. Mold and mildew love moist environments, and they can grow on your walls, ceilings, and even your furniture. Not only does this look gross, but it can also cause health issues, especially for people with allergies or respiratory problems.
High humidity can also make your home feel stuffy and uncomfortable. You might find yourself sweating more, even when it's not that hot outside. And let's not forget about the damage it can do to your belongings. Wood can warp, electronics can malfunction, and clothing can develop a musty smell.
Factors to Consider When Choosing the Size
Now, let's get into the nitty-gritty of choosing the right size dehumidifier for your home. There are a few key factors you need to take into account.
Square Footage of Your Home
This is probably the most important factor. The larger your home, the more powerful your dehumidifier needs to be. As a general rule of thumb, you'll want a dehumidifier that can handle at least 1 square foot of space for every 1 to 2 pints of water it can remove per day. For example, if your home is 1,000 square feet, you'll need a dehumidifier that can remove at least 500 to 1,000 pints of water per day.
Humidity Level in Your Area
The average humidity level in your area also plays a big role. If you live in a humid climate, like the southeastern United States, you'll need a more powerful dehumidifier than someone who lives in a drier climate. You can check the humidity levels in your area online or with a hygrometer, which is a simple device that measures humidity.
Number of Rooms
The number of rooms in your home is another important consideration. If you have a lot of small rooms, you might need a dehumidifier that can be moved from room to room. On the other hand, if you have a large open-concept home, you can get away with a single, more powerful dehumidifier.
Type of Home
The type of home you live in can also affect your dehumidifier needs. For example, if you live in a basement or a crawl space, you'll need a dehumidifier that can handle a lot of moisture. Basements are often more humid than the rest of the home because they're underground and closer to the water table.
Calculating the Right Size
So, how do you actually calculate the right size dehumidifier for your home? It's not as complicated as it might seem.
First, measure the square footage of your home. You can do this by multiplying the length and width of each room and then adding them all together. If you have a multi-story home, make sure to measure each floor separately.
Next, check the humidity levels in your area. You can use this information to determine how much moisture your dehumidifier needs to remove. As a general guideline, if the humidity level is between 30% and 50%, you'll need a dehumidifier that can remove 1 to 2 pints of water per day for every 100 square feet of space. If the humidity level is between 50% and 60%, you'll need a dehumidifier that can remove 2 to 3 pints of water per day for every 100 square feet of space. And if the humidity level is above 60%, you'll need a dehumidifier that can remove 3 or more pints of water per day for every 100 square feet of space.
Let's say you have a 2,000 square foot home in an area with an average humidity level of 55%. Using the guidelines above, you'll need a dehumidifier that can remove between 40 and 60 pints of water per day.
Different Types of Whole Home Dehumidifiers
There are a few different types of whole home dehumidifiers to choose from, each with its own pros and cons.
Refrigerant Dehumidifiers
These are the most common type of dehumidifiers. They work by drawing in moist air, cooling it down so that the moisture condenses into water, and then collecting the water in a tank. Refrigerant dehumidifiers are generally more powerful and can remove a lot of moisture quickly. However, they can also be more expensive to run, especially in hot weather.
Desiccant Dehumidifiers
Desiccant dehumidifiers use a special material called a desiccant to absorb moisture from the air. They're more energy-efficient than refrigerant dehumidifiers, especially in cold weather. However, they're not as powerful and can't remove as much moisture as refrigerant dehumidifiers.
Whole House Dehumidification Systems
These are the most powerful type of dehumidifiers. They're installed directly into your home's HVAC system and can dehumidify your entire home at once. Whole house dehumidification systems are the most expensive option, but they're also the most effective.
Our Product Recommendations
As a whole home dehumidifier supplier, we have a wide range of products to choose from. Here are a few of our top recommendations:
- Commercial Air Water Remover: This is a powerful commercial-grade dehumidifier that's perfect for large homes or commercial spaces. It can remove up to 100 pints of water per day and has a built-in pump for easy drainage.
- 50L/day Compressor Type Commercial Building Dehumidifier Reducing Moisture: This dehumidifier is designed for commercial buildings, but it can also be used in large homes. It can remove up to 50 liters of water per day and has a digital control panel for easy operation.
- Small Dehumidifier: If you have a small room or a specific area that needs dehumidifying, this small dehumidifier is a great option. It's compact, easy to use, and can remove up to 10 pints of water per day.
Conclusion
Choosing the right size whole home dehumidifier is crucial for keeping your home comfortable, healthy, and free from damage. By considering factors like square footage, humidity level, number of rooms, and type of home, you can make an informed decision. And if you're still not sure which dehumidifier is right for you, don't hesitate to reach out to us. We're here to help you find the perfect solution for your needs.


If you're interested in purchasing a whole home dehumidifier, we'd love to talk to you. Contact us to start a procurement discussion and find the best dehumidifier for your home.
References
- "How to Choose the Right Dehumidifier for Your Home." Energy Star.
- "Dehumidifiers: How They Work and How to Choose the Right One." Consumer Reports.
