9 Best Whole House Dehumidifiers For Perfect Home Air

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Hours of Research

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Reviews Examined

I live in a humid area, and a portable dehumidifier can't properly manage the indoor moisture levels. That's why I use a whole home dehumidifier instead.

Whole-home dehumidifiers aren't cheap, and it isn't easy to determine which model is best for your home. I wanted to make it simpler for homeowners and started researching, trying, and testing different models.

In this buyer's guide, I'll share what I've found and introduce you to the 9 best whole-house dehumidifier models on the market.

My #1 Choice

Aprilaire 1830

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Our Score

3.0

Ducted Model

Aprilaire 1870 Pro X

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Our Score

3.0

Portable Model

TOSOT

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Our Score

3.0

9 Best Whole House Dehumidifiers (2023 Reviews)

Read my reviews of the best whole house dehumidifiers on the market.

I have added models that range in size, drainage type and price point so that all homeowners can find the best solution for their needs.

1. AprilAire E100C Pro - Editors Pick

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

100 PPD

Coverage

5500 square feet

Current Draw

6.9 amps

Max Air Flow

230 CFM

Drainage System

Continuous gravity drain

If you need continuous, reliable protection from humidity across your entire house then the AprilAire E100C is the right choice. This is the dehumidifier I use in my home, and it will easily help you reach the desired humidity level in every room.

This 100-pint whole house dehumidifier unit is made to deal with a lot of moisture in thte air air. It's effective in humid crawl spaces or basements, but it's also powerful enough to control the humidity across your whole home. It works best if you attach it to an existing HVAC system, but it can also work on it's own. 

What I really like about this AprilAire whole home dehumidifier is the quality. AprilAire are a solid brand and you know you're getting a durable dehumidifier, but the internal components and outer casing were even tougher than I expected. 

This whole house dehumidifier is protected against corrosion and low temperatures too. This means you can run it year round for consistent protection. Even the air filter is durable and only needs to be changed once a year.

The intelligent features of this dehumidifier impressed me too. It comes with a sensitive and accurate humidistat which monitors the high humidity levels and controls the operation of the device. It also has a programmable timer and easy to use controls. This made is simple to keep my entire home protected, and increased the energy efficiency of the device. 

It is slightly disappointing that this dehumidifier has no pump drainage and it relies on gravity drainage. It does come with a drain hose but you'll need to position it above the floor drain outlet so the excess moisture can be properly removed from your home. 

However, this isn't a big issue, and it's still one of the best new whole house dehumidifier units on the market. It combines the power and durability of commercial units with the intelligent features of residential units, and it's easy to maintain. If you want a hassle free way to improve the indoor air quality across your entire home then this is the dehumidifier for you. 

Pros

  • High quality and long lasting dehumidifier
  • Big area coverage
  • Intelligent sensors for efficient use
  • Can operate in cold conditions
  • 5 year warranty

Cons

  • No pump so it relies on gravity draining 

2. AprilAire E130 Pro - Best Ducted Whole House Dehumidifier

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

130 PPD

Coverage

7200 square feet

Current Draw

7.2 amps

Max Air Flow

310 CFM

Drainage System

Continuous gravity drain

The AprilAire E130 is exactly what you need in a large home with a lot of humidity. This ducted dehumidifier will connect into an existing indoor air conditioning or HVAC system to give you complete control over your home environment. 

The AprilAire E130 is very similar to my top pick, the E100, but it has significantly more power. It's a powerful dehumidifier which can remove moisture quickly, and it's perfect for homeowners who need dehumidification over several floors at once. 

The E130 has all the quality you'd expect from AprilAire with commercial grade materials and components. It's simple to use and has intelligent sensors which basically let it run itself.  

I was slightly surprised by the energy efficiency of this central dehumidifier given the high PPD rating. It's energy star rated, but even so I expected it to cost more to run. I was happy to be wrong though, and it certainly offers some good value for money when you compare running costs vs performance. 

The best feature of the E130 is the noise level though. It operates at under 50 decibels which, for a whole home dehumidifier, is very quiet. This means you can leave it running constantly without any disruption. 

The only downside of these ducted whole house dehumidifiers is that they are more expensive than other models. The installation costs are also quite high if you don't have any existing ductwork in your home. 

However, this is one of the best ducted whole house dehumidifiers on the market and despite higher costs it offers good value for money. It's perfect for homeowners with a several stories that all need humidity control at the same time, and this smart dehumidifier will give you a lot of long term value. 

Pros

  • Effective humidity control across multiple floors
  • Easy to use and low maintenance
  • Automatic defrost feature
  • Energy efficient
  • Quiet operation

Cons

  • Slightly more expensive
  • Relies on gravity draining which can limit placement

3. Santa Fe Ultra Vertical Whole House Dehumidifier

Ultra-Aire 120V Vertical Whole House Dehumidifier

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

124 PPD

Coverage

3000 square feet

Current Draw

5.8 amps

Max Air Flow

445 CFM

Drainage System

Continuous drain (pump optional)

When space is limited, or you know exactly what you need and where it goes, the Santa Fe Ultra is the best vertical ducted whole house dehumidifier. With plenty of capability, this unit will install in less than an hour and pull more moisture than you can imagine.

The most significant factor here is the positioning. Most ducted dehumidifiers are horizontal. This machine has a vertical position with both inlet and outlet air ducts mounted on top of the unit. It cannot function lying down.

Now for the bad news. This ducted dehumidifier requires a controller for operation, and there isn’t one included. However, it is compatible with many models, including Honeywell and, of course, Santa Fe Ultra (DEH3000). It also doesn’t include a pump for water removal. You can rely on gravity to drain as the outlet is at the bottom of the unit, but a pump would wok a lot better.

There is an external pump kit made for this unit, but again, it isn’t included and must be purchased and installed separately. However, once you have all of that figured out, you can set the unit, turn it on and forget all about it.

It will run as needed to maintain the desired humidity level across your entire house and will shut off if there are any issues. In the event of a power outage, the auto-restart will kick in, and the unit will continue to operate as programmed before the power loss.

Pros

  • 6-year warranty
  • Auto-restart function
  • MERV-13 or 14 filter compatible

Cons

  • No low temp operation
  • Controller and pump not included

4. Santa Fe Ultra - Top Of The range

Ultra-Aire 180 Pint Whole House Split Dehumidifier

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

180 PPD

Coverage

4000 square feet

Current Draw

9.7 amps

Max Air Flow

406 CFM

Drainage System

Continuous gravity drain

The Santa Fe Ultra SD12 is a 180 PPD dehumidifier with a whole house install that will have your home at optimal humidity levels in no time at all. Once running, this unit will run as long as needed to get the job done.

With 406 CFM airflow, you know that there will be some moisture removal. Designed as the top of the range model, this ducted dehumidifier will remove an incredible 180 PPD of moisture to help you reach the desired humidity level quickly. The controls are all manual, which keeps things simple.

However, there is one downside. This unit must be professionally installed. If it is not, your warranty is immediately void. The warranty itself runs for 6 years. The first 2 years cover the labor and the entire 6 years cover all the parts.

It uses a continuous drain system but the hose isn't included, so you will need to buy a drain hose or standard garden hose to connect it to your outlet. There isn’t a pump kit compatible with it, so you must rely on gravity to empty the system as it removes moisture from your indoor air.

This is one of the best whole house dehumidifiers for quiet running. With decibels in the sub-45 range, it is easily the quietest ducted whole house dehumidifier on the market. After install and at full speed, you won’t even notice it running. What you will notice is the lack of humidity in your whole house.

Pros

  • 6/2-year warranty (parts/labor)
  • Long power cord
  • Simple manual controls
  • Extremely quiet operation

Cons

  • Must be professionally installed
  • Not Energy Star rated

5. ALORAIR Storm LGR Extreme

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

85 PPD

Coverage

2300 square feet

Current Draw

5.62 amps

Max Air Flow

210 CFM

Drainage System

Continuous pump drain

Not to be outdone, the Alorair Storm is a waterproof dehumidifier that is compact as it is powerful. No matter the situation, whether commercial, industrial, or residential, this is one of the best whole house dehumidifiers for removing moisture with ease.

The bright yellow case is quite eye-catching, but it is what is under and inside the case that matters the most. This continuous drain system comes with a 20-foot hose and drains with the help of an pump. The pump in question has a 15-foot drain height so that you can put this little guy almost anywhere on any floor of your home.

The bottom layer is rubber and sealed, protecting the board and allowing the unit to be waterproof. This means you can set it down in the work site or wet basement and not worry if there is a puddle nearby.

It utilizes many features, too, including the all-digital touch-sensitive display and HGV defrost cycle. It can run in low temp settings without having to monitor it continually. The MERV-8 filter needs to be cleaned every 8 months but has an easy access slide out for quick changing.

On top of all that, you get a 1/3/5-year warranty that covers the parts and labor, refrigeration system, and compressor and evaporator, respectively. If your area is prone to flooding, or you have a wet basement and need to remove a lot of moisture in a large space, this is one of the best whole house dehumidifiers to consider.

Pros

  • Touch-sensitive LCD panel
  • Waterproof design
  • 1/3/5-year warranty
  • Quick connect hose

Cons

  • No wheels for transporting
  • Humidistat may not be accurate

6. SAHAUHY - Best Commercial Grade Whole Home Dehumidifier

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

158 PPD

Coverage

6800 square feet

Current Draw

8.17 amps

Max Air Flow

320 CFM

Drainage System

Continuous pump drain or tank

Tough jobs need tough equipment, and dehumidifiers don't come much tougher than the SAHAUHY. This commercial grade 158 pint dehumidifier is great for homeowners with older homes that suffer from moisture, or those living in very humid environments.

The massive capacity of this whole will make short work of any indoor humidity no matter how much moisture you're dealing with. It can handle humidity levels of over 95% (which is a lot!) and in my basement it brought the indoor humidity down to under 50% in just 24 hours when I used the maximum fan speed. 

It also has a lot of different settings and features. The programmable timer, automatic humidistat, and different fan speed settings let you control the humidity levels accurately so you can use the device to suit your needs. The SAHAUHY dehumidifier even has handy wheels so you move it between homes or sites as needed.

What I really liked about this dehumidifier was how tough it was, and the fact it just keeps working in any conditions. It has an automatic restart after a power outage, and auto defrost function so it can work in cold climates. It's also extremely durable. All of this means it can provide consistent, powerful dehumidification with no interruptions- perfect for high humidity areas. 

One limiting factor of this dehumidifier is that the water tank is quite small so it would have to be emptied several times a day. This wasn't a problem for me because I hooked it up to my floor drain, and I'd definitely recommend connecting it to your drain rather than trying to stay on top of emptying the water reservoir. 

However, despite some small issues, this dehumidifier will definitely be able to manage your indoor humidity. It's the best dehumidifier for homes with poor insulation, and those who suffer from very high indoor humiditiy. 

Pros

  • Removes a lot of moisture, fast
  • Continuous operation in any conditions
  • Several programmable settings
  • Can handle humidity levels above 95%

Cons

  • Small water tank - only really suitable to drain connection
  • Less energy efficient than other models

7. RIMKMO- Largest capacity whole house dehumidifier

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

296 PPD

Coverage

8000 sq ft

Current Draw

9.6 amps

Max Air Flow

353 CFM

Drainage System

Continuous gravity drain

If you have a large home then your standard whole home dehumidifier isn't going to cut it - you need more coverage. The RINKMO is an extremely high capacity whole home dehumidifier which is specifically designed to manage humidity levels over a wide area. This makes it one of the best dehumidifiers for large spaces.

This 296 pint dehumidifier has an efficient compressor which allows it to remove almost double the amount of moisture of other whole home dehumidifiers. 

Despite the power, it has a slim design so it can be positioned in most rooms. It is quite heavy (107lbs) but it has wheels on the base to make it easier to transport. 

What I liked most about the RINKMO dehumidifier, other than the huge capacity, was the fan speed. The fan operates at 353 CFM and can draw in the moist indoor air very quickly. This makes it a useful model for any homeowners battling a lot of damp. 

The only drawback with this model is that there's no pump and it relies on gravity draining. This means you have to place it somewhere above your floor drain and can limit where you're able to place it. 

This dehumidifier is perfect for larger homes and can even be used on construction sites. It's one of the more expensive models, but offers some great value for anyone looking to manage a lot of humidity, fast. 

Pros

  • Dehumidifies a very large area
  • Easily transports on 4 caster wheels
  • Simple controls
  • Auto shut off and auto restart
  • Fast fan speed

Cons

  • Relies on gravity drainage
  • Limited programmable settings

8. ALORAIR 120 PPD - Best Compact Whole Home Dehumidifier

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0

Moisture Removal

120 PPD

Coverage

1300 sq ft

Current Draw

4.1

Max Air Flow

130 CFM

Drainage System

Continuous pump drainage

Size isn't everything, and a powerful dehumidifier doesn't have to be big and bulky. The ALORAIR whole home dehumidifier is one of the highest performing models we've used but it will still fit comfortably in any crawl space or basement - giving you full protection without you even noticing it's there. 

This 120 pint dehumidifier is designed to deal with humid crawl spaces, basements, or small homes. It has a solid metal case but it's still under 60 pounds, so it's a lot easier to move and install than other whole home dehumidifiers. 

It has all the features you would expect from a high performing model and can comfortable manage high humidity levels above 85%. However, what I like most about the ALORAIR dehumidifier is how little maintenance is required. It has an auto defrost feature to protect against cold temperatures and an auto restart feature to keep it running even after a power failure. 

It also has a unique MERV-8 filter which removes contaminents from the air. This not only improves your air quality, but removes pollutants before they reach the internal mechanism, protecting the dehumidifier from damage and corrosion.

The only slight issue I had with this dehumidifier is that the sensors aren't 100% accuate. When I tested the humidity level readouts with a separate humidistat I found them to be 1-2% off. This isn't ideal, but it shouldn't be a real problem unless you want exact humidity levels.

If you have a small/medium sized home and want to remove moist air without any fuss, then this is the model for you. The ALORAIR whole home dehumidifier is compact, low maintenance, and keeps running in any conditions to give you year round humidity protection with minimal effort. 

Pros

  • Compact and relatively lightweight
  • MERV-8 Filter to improve air quality
  • Continuous running in all conditions
  • Very low maintenance

Cons

  • Sensors aren't 100% accurate

9. TOSOT 4,500 Sq Ft - Best Portable Dehumidifier For Home

Moisture Removal

50 PPD

Coverage

4500 square feet

Current Draw

6.3 amps

Max Air Flow

110-140 CFM

Drainage System

Reservoir or pump drain

Technically, a whole house dehumidifiers shouldn't be portable because they are designed to be a fixed installation in your home. However, TOSOT portable dehumidifiers have enough power to dehumidify several rooms at once, and make a great alternative for small homes or apartments.

This whole house dehumidifier is portable, capable, and energy efficient (with an energy star rating). It has settings that are easy to use and understand and gives you full control over the relative humidity in your home.

This unit pulls air at two speeds, and even when running on high to remove more humid air, the noise levels are quiet (max 51dB). This means you can sleep or watch TV and it will work to reach the desired humidity level without disturbing you.

There are two drain options for you to choose from. The water tank will hold about 1.5 gallons and when it gets full the machine will shut down, and an LED indicator will alert you to empty the tank. Alternatively, you can use automatic drainage to remove the excess moisture more efficiently. 

The dehumidifier comes with a 12 foot drain hose that's easy to run, and I'd recommend installing automatic gravity or pump drainage if you're serious about whole home dehumidification. This will allow it to reduce the relative humidity more quickly without having to empty the water reservoir. 

The only issue here I found with this dehumidifier is that the water tank doesn’t always empty completely. If you plan to use it in this mode and store it when not in use, make sure to manually empty and dry the tank before storage.

Overall, this is a useful portable model which can protect your entire house from high humidity. It isn't as powerful as fixed whole house dehumidifier models, but it is energy efficient, affordable, and will reduce the relative humidity in your home. 

If you like this style of portable units but aren’t impressed with the TOSOT model, you can check out the hOmeLabs version, which gets a lot of high marks. There is also a Frigidaire unit that receives a lot of rave reviews.

Pros

  • Auto on/off pump
  • Three speed fan
  • Humidity level setting
  • Full digital controls
  • Auto-restart function

Cons

  • 1-year warranty
  • Bucket doesn’t always drain completely

Whole House Dehumidifiers Compared

Image
Aprilaire - 1830Z 1830 Pro Dehumidifier, 70...
Aprilaire 1870 XL Pro Dehumidifier, 130 Pint...
TOSOT 50 Pint with Internal Pump 4,500 Sq Ft...
ALORAIR 180 PPD Commercial Dehumidifier with...
Waykar 296 Pints Large Commercial...
Dri-Eaz Revolution LGR Commercial...
Model
Aprilaire - 1830Z 1830 Pro Dehumidifier, 70...
Aprilaire 1870 XL Pro Dehumidifier, 130 Pint...
TOSOT 50 Pint with Internal Pump 4,500 Sq Ft...
ALORAIR 180 PPD Commercial Dehumidifier with...
Waykar 296 Pints Large Commercial...
Dri-Eaz Revolution LGR Commercial...
Pints Per Day
70 PPD
130 PPD
50 PPD
85 PPD
296 PPD
80 PPD
Area
3800 sq ft
7200 sq ft
4500 sq ft
2300 sq ft
8000 sq ft
5000 sq ft
Drainage
Continuous gravity drain
Continuous gravity drain
Reservoir or pump drain
Continuous pump drain
Continuous gravity drain
Continuous pump drain
Image
Aprilaire - 1830Z 1830 Pro Dehumidifier, 70...
Model
Aprilaire - 1830Z 1830 Pro Dehumidifier, 70...
Pints Per Day
70 PPD
Area
3800 sq ft
Drainage
Continuous gravity drain
Price
Image
Aprilaire 1870 XL Pro Dehumidifier, 130 Pint...
Model
Aprilaire 1870 XL Pro Dehumidifier, 130 Pint...
Pints Per Day
130 PPD
Area
7200 sq ft
Drainage
Continuous gravity drain
Price
Image
TOSOT 50 Pint with Internal Pump 4,500 Sq Ft...
Model
TOSOT 50 Pint with Internal Pump 4,500 Sq Ft...
Pints Per Day
50 PPD
Area
4500 sq ft
Drainage
Reservoir or pump drain
Price
Image
ALORAIR 180 PPD Commercial Dehumidifier with...
Model
ALORAIR 180 PPD Commercial Dehumidifier with...
Pints Per Day
85 PPD
Area
2300 sq ft
Drainage
Continuous pump drain
Price
Image
Waykar 296 Pints Large Commercial...
Model
Waykar 296 Pints Large Commercial...
Pints Per Day
296 PPD
Area
8000 sq ft
Drainage
Continuous gravity drain
Price
Image
Dri-Eaz Revolution LGR Commercial...
Model
Dri-Eaz Revolution LGR Commercial...
Pints Per Day
80 PPD
Area
5000 sq ft
Drainage
Continuous pump drain
Price

Choosing The Right Dehumidifier For Your House

Dehumidifier Type

There are three main types of dehumidifiers, refrigerant, desiccant, and whole home. 

Refrigerant dehumidifiers work using a compressor to remove moisture from the air. They're efficient, but have higher running costs and don't always work in low temperatures. Most portable dehumidifiers are refrigerant models. 

Desiccant dehumidifiers are the cheapest to run, most energy efficient, and can operate in cold conditions. However, they have the lowest moisture removal capacity and take longer to lower the relative humidity. These are generally portable dehumidifiers and are most useful in small rooms. 

Whole house dehumidifiers are central dehumidifiers which regulate humidity across your entire home. Whole house units are usually refrigerant dehumidifiers which are connected to your entire house through ducts, and they usually operate in conjunction with air conditioners, air purifiers, or a full HVAC system.

In a large home with high humidity you need a whole home dehumidifier to properly manage the moisture levels. 

Temperature Requirements

My basement is the most humid part of my home, but the low temperatures can cause issues.

Most dehumidifiers won't operate properly in temperatures below 65 degrees Fahrenheit because the condenser coils will freeze. If you're planning to use a dehumidifier in a basement, crawl space, or garage that can get cold then you'll need to find a specific model which can work in these conditions. 

I would recommend looking for refrigerant models which have an auto defrost feature to protect the device from ice damage. Most good quality whole home dehumidifiers will have this as standard, and will function properly in most temperatures. 

Dehumidifier Coverage Area & Sizing Guide

The size of your dehumidifier isn't the physical dimensions, it's the area it can dehumidify and the amount of moisture it can handle. 

So how big of a dehumidifier do you need for your home? It varies, but in general the larger your home and the higher the humidity, the larger the dehumidifier you need. 

I would recommend accurately measuring the space (in square feet) you want it to operate in and using a hygrometer and other air quality tools to figure out your home’s humidity, temperature, and pressure readings. This will give you everything you need to find the right dehumidifier. 

Here's a rough guide:

  • Small capacity units with with a 20-30 PPD will work in spaces at or below 500 square feet. This is good for an office, closet, or small bedroom.
  • Medium capacity units with a 30-50 PPD will work in spaces of 500-1500 square feet. This is what I recommend for most living areas.
  • High capacity units with a PPD rating of 70+ will work in large spaces of over 2500 square feet. These are suitable as whole house dehumidifiers, or can be used in very humid basements or crawl spaces. 

Extraction Rate

The extraction rate is measured in pints per day (PPD), and for smaller, portable units, this may also be in ounces per day. The number is determined by how much air it can pull in, cool, and condense while in operation.

The higher the PPD rating, the more moisture the machine removes from your air. The averages fall between 20 to 50 PPD for residential use to 70  – 90 PPD for more commercial-grade dehumidifiers. 

Ducted (HVAC) Vs. Portable

For whole home dehumidifiers, there are two installation methods, ducted or portable.

The more permanent, ducted models work similarly to your HVAC system. They use ducting to pull air in from around the home and push the warmer, drier out back into the house.

Portable units can be moved from room to room or positioned in a central location to dehumidify the air throughout the home. 

Ducted, whole home dehumidifiers are best for those who need dehumidification over a large area year round. Portable dehumidifiers are best for those who only have humidity issues in certain parts of their home or at specific times of year. 

Drainage

Dehumidifier drainage is either manual or automatic. For whole home dehumidification to manage high moisture levels you should use automatic drainage.

Manual drainage involves emptying a water reservoir or water tank from the dehumidifier. This is common with portable dehumidifiers, but it's inconvenient for larger models which are collecting a lot of moisture every day. 

Automatic draining is split into two categories; gravity drainage or pump drainage. Gravity drainage is where a drain hose is connected to your floor drain and gravity forces it down and out of your home. Pump drainage is where a pump actively pushes water out of your home, and it can be used to drain water upwards if needed, meaning you don't have to use a floor drain. 

Automatic drainage is simpler but means the dehumidifier is installed in a more fixed location. Pump drainage is generally better than gravity drainage because it means the dehumidifier can be placed anywhere (above or below your external drain outlet).  

Energy Efficiency

A dehumidifier, especially a whole house dehumidifier, can cost more than you think to run, and you need to consider the energy efficiency of the unit you choose.

Look for a model with an energy star rating in the specifications. This shows it has a high energy efficiency rating and will use less electricity than non energy star rated models.

I always choose an energy efficient model and it reduces my running costs by up to 50% a year. This translates into hundreds of dollars worth of savings, and i would recommend that you do the same to keep your electricity bill down. 

Noise Levels

Dehumidifiers can be loud, especially if you buy a larger model. In large homes with whole home dehumidification this may not be an issue, but in a small home it can be really disruptive. If, like me, you have young kids at home then you need to find a quiet model. 

You should always check the decibel rating of your dehumidifier before you purchase. Anything below 45 decibels is excellent, but for whole home dehumidifiers you should look for a model which is below 55 decibels. 

Other Features

Modern dehumidifiers can do a lot, and if you're using the device frequenty it's worth looking out for some of the following features. Just bear in mind that smarter technology will push the price up.

  • Filter Indicator Light
    The filters will need to be changed or cleaned regularly. This is generally based on the hours of operation of the machine rather than time gone by. Since you may not remember how many hours the dehumidifier has run, having a filter indicator LED will tell you when to clean or change the filter.
  • Auto-Humidistat
    A humidistat measures the ambient and relative humidity around the machine. When the dehumidifier uses an auto-humidistat, it can be programmed to a specific relative humidity percentage where it will turn on or off based on this number. These aren’t essential but can save a lot of money on your energy bill.
  • Auto Reset
    If the power ever goes out, your dehumidifier will shut off. When power is restored, the auto-reset feature will put the unit back in operation using the previously programmed settings, including speed, humidity levels, and draining options.
  • Low Temperature Settings
    For models with a low temp setting, you can continue to operate even if there is a cold snap or a day when the temperature is lower than expected. It also means they can operate in a basement or crawl space with less insulation. Most units with this capability will automatically do it and incorporate a frost sensor (see below), so you don’t need to act.
  • Frost Sensor
    A frost sensor will measure temperature and if there is any frost or ice on the coils, pump, or refrigerant lines. When detected, the machine will stop operation while it enters a defrost cycle to remove the ice or frost. After the cycle is complete, the dehumidifier will resume operation.
  • Digital Controls
    Digital control panels will help you get more accurate readings and settings. Unlike analog controls, digital readouts are exact and don’t rely on dial inputs. While not required, most whole house dehumidifiers will have digital controls and LED or LCD screens for readouts and setting verification.

Warranty

Understanding your warranty is crucial. There are many different warranties that range from a few months to a lifetime. The average is between 2 and 5 years, though. Anything less is considered short.

Read through the agreement before you buy, though, so you understand what is and isn’t covered, for how long, and what you need to do or have in order to make a claim.

Price

A portable dehumidifier will cost $50-$500, but a whole home dehumidifier can cost up to $3000. It's important to find a dehumidifier which meets your needs but also offers some value. All the whole home dehumidifiers on the list offer a good balance of performance and price so it's a good place to start looking. 

Always remember that high quality units do cost more, but often it's worth paying extra to get greater long term value.


Benefits Of Whole House Dehumidifiers For Your Home

For me, there is nothing worse than feeling uncomfortable in your own home. High humidity and moisture levels can make you feel really sticky and cause damage to your home. The right whole house dehumidifier will protect you and your belongings in the following ways:

They protect your health

Harmful contaminents and irritants like dust mites thrive in moist air. Dehumidifiers provide you with dry air which is safer to breathe, and help to prevent allergy triggers [1]. They can also reduce the severity of asthma, bronchitis, pneumonia, and other respiratory illnesses. 

They protect your home from mold growth

Mold and mildew develop and spread in moist conditions. By eliminating the source of moisture the dehumidifier will stop mold from spreading through your home. This prevents damage to your belongings, and stops you breathing in potentially dangerous mold spores [2]. 

They can prevent water damage 

Humid air can often lead to foggy windows and condensation. This is inconvenient, but can also lead to water gathering in your home. A dehumidifier helps to dry the air and prevent this from happening, limiting the risk of water damage in your home. 

They can lower your energy bills 

Dehumidifiers produce dry air which can make your central air conditioner more efficient. A dehumidifier is much less expensive to run so if your AC is running less frequently it can reduce your electricity bill. 

what's the benefit of a whole house compared to a portable dehumidifier? 

Whole house dehumidifiers offer greater protection against humidity than portable dehumidifiers. They also offer some other benefits:

  • They protect multiple rooms/your entire home at once, giving you dry air across your home. 
  • They are more energy efficient than running several portable dehumidifiers at once and will use less electricity. 
  • They remove more moisture, more quickly. This helps to make you more comfortable, protects your health, and prevents your belongings. 
  • They can work alongside air conditioners and air purifiers to give you full control of your air quality.

The only downside of whole house dehumidifiers is that they are more expensive and rely on ductwork to reach your entire home. This can make installation expensive if you don't already have ducts in your home. However, if you have a large home with lots of humidity then it's definitely worth the investment. 


People Also Ask (FAQ)

Can you get a portable whole house dehumidifier?

Technically, no. A whole house dehumidifier is a fixed appliance which is connected to ducts across your entire home, so it can't be portable. However, there are some powerful portable dehumidifiers (like the TOSOT model on our list) which are suitable for dehumidifying a small home or apartment and can therefore be used as a portable whole house dehumidifier. 

Whole house dehumidifiers vs humidifiers – what is the difference?

Dehumidifiers remove moisture from the air while humidifiers add moisture. Humidifiers are generally used in bedrooms to help you sleep when humidity is too low, and it dries out your skin, throat and eyes. Dehumidifiers remove excess humidity to keep your home and body more comfortable and healthy.

How long do whole house dehumidifiers last?

With proper installation, care and maintenance, whole house dehumidifiers can easily last 10 or more years. Portable units may not last as long, with 3 to 5 years being average.

How much do these whole Home dehumidifiers cost?

Whole home dehumidifiers will generally cost $500-$2000 depending on the size and capacity. Installation costs can be significantly more depending on whether you have existing ductwork on not. 

Should a whole house dehumidifier run all the time?

No, whole house dehumidifiers should run long enough to maintain humidity levels based on your settings but not all the time. Once the humidity level is reached, the machine should shut or (or be turned off) until the humidity rises again.

Where is a good place to buy whole home dehumidifiers?

The best places to buy whole house dehumidifiers are online, though Amazon or Sylvane. These two companies have great deals and extensive inventories. Better yet, though, they have models that are a year or two old, still new in box, and offer tremendous savings over similar models that came out in the last 6 months.


Conclusion

My whole-home dehumidifier is one of the most used appliances in my home. It protects my home and family from humidity, but only because I took the time to find the right model.

I created this buyer's guide to help others find the best whole-home dehumidifiers to meet their needs. All the models on the list have been tried and tested and have proven themselves the highest performing, most durable, and most intelligent.

The AprilAire E100C Pro is my top pick because of its quality and simplicity. I would recommend it to anyone who wants effective whole-home dehumidification without any hassle.

Our #1 Whole House Dehumidifier
Aprilaire 1830

Ease of Use

3.0

Maintenance

3.0

Value For Money

3.0


Overall Rating

3.0