Buyer's Guide & Information

Best Whole House Dehumidifiers Reviewed

We have compared the best whole house dehumidifiers on the market. Our reviews cover the top rated brands for fresh air in your home.

Ducted Model

Aprilaire 1870 XL Pro Dehumidifier
Aprilaire 1870 Pro XL

Our #1 Choice

Aprilaire 1830 Pro Dehumidifier
Aprilaire 1830

Top of the Range

Ultra-Aire 180 Pint Whole House Split Dehumidifier
Ultra-Aire 180 Pint

Dehumidifiers have come a long way over the last few decades. Now, they are an integral part of HVAC systems and home climate control. There are many benefits to controlling the humidity levels in your home, both health and energy efficiency.

This article looks at the best whole house dehumidifiers that can be installed in any space and perform well enough to reduce your humidity levels to a more comfortable and beneficial level. We also look at factors to consider before buying and all the information you need to understand dehumidifiers.

Whole House Dehumidifiers Compared

ModelPints Per DayAreaDrainagePrice
Aprilaire 183070 PPD3800 sq ftContinuous gravity drainCheck Amazon
Aprilaire 1870 Pro XL130 PPD7200 sq ftContinuous gravity drainCheck Amazon
Tosot w/ Internal Pump50 PPD4500 sq ftReservoir or pump drainCheck Amazon
Ultra-Aire Vertical124 PPD3000 sq ftContinuous drain (pump optional)Check Sylvane
Ultra-Aire 180 Pint180 PPD4000 sq ftContinuous gravity drainCheck Sylvane
Alorair Storm LGR Extreme85 PPD2300 sq ftContinuous pump drainCheck Amazon
Colzer232 PPD8000 sq ftContinuous gravity drainCheck Amazon
Waykar296 PPD8000 sq ftContinuous gravity drainCheck Amazon
Dri-EAZ F413 Revolution LGR80 PPD5000 sq ftContinuous pump drainCheck Amazon

Benefits of Whole House Dehumidifiers for your Home

Your home will give you signs that humidity levels are too high. There are quite a few indicators, including condensation on the windows. This happens a lot, but if it happens consistently, your humidity level is high.

You may also notice that your home is muggy, making it harder to breathe or that you sweat doing little to no activity. Another big indicator is mold growth. Mold and mildew thrive and grow in higher humidity environments.

A whole house dehumidifier can reduce all of these symptoms and has a few health benefits, too. Reducing humidity can:

  • Stop mold growth and kill some molds that are already present.
  • Prevent window fogging or condensation.
  • Makes your central air conditioner more efficient.
  • Reduces the severity of asthma, bronchitis, pneumonia, and other respiratory illnesses.

Choosing Dehumidifiers for the Whole House

Dehumidifier Type

There are three main types of dehumidifiers, including compressor, thermo-electric, and desiccant. Each one has benefits and disadvantages. In short, compressor models move the most moisture but are loud.

Thermo-electric models are more energy efficient but don’t remove as much moisture. Desiccant types are the most energy efficient and quietest types. However, they have the lowest moisture removal capacity of the three types.

Temperature Requirements

Some models aren’t good when temperatures drop too low. Other models have sensors and heating cycles to keep running even in temperatures near freezing. The right model for you will operate in your region’s average temperature range.

Coverage Area

Coverage area, measured in square footage, is determined by a lot of various factors. However, the moisture removal and CFM capacities will correlate directly to the device’s square foot capacity. Larger units remove more moisture, have faster speed fans, and can operate effectively in larger 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. 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. Based on your needs, one may be more beneficial than the other, though they both offer benefits and disadvantages.

Drainage

Drainage on these machines comes in two styles. Reservoir, or tank, draining puts the collected water into a tank that you must remove and empty yourself. Continuous draining options are split into two sub-categories.

Gravity drains require a hose attached, and the unit must be higher than the drain outlet. These models are quieter and cheaper but must be installed in specific areas or locations. Pump drain systems use an internal pump to push the water through the hose. These can be installed on any level and even below the drain outlet.

Other Features

The core features are important on every model. However, the following additional features may or may not be present. Most are beneficial but may raise the price. You can decide on the features you want or need and find models that save you money by only offering those features.

  • 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 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. 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.
  • Noise Levels
    Because most of these units have fans, motors, and even pumps, they can get quite loud during operation. Some noise dampening may be installed to help out, but this is rare. Portable units are much quieter, but you can expect noise levels to range between 38 and 65dB.
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

The price will be the ultimate deciding factor. Try to get a model and brand that will serve you well and meet all your needs and expectations. However, it is easy to go over budget when searching for the best dehumidifier. Make sure you stay in your price range for the most enjoyment and use of your new investment.

9 Best Whole House Dehumidifiers Reviewed

1. Aprilaire 1830

Best Whole House Dehumidifier
Moisture Removal70 PPD
Coverage3800 square feet
Current Draw6.3 amps
Max Air Flow160 CFM
Drainage SystemContinuous gravity drain

The best 70-pint whole house dehumidifier is easily the Aprilaire 1830. This model, along with several others in the series, offers you massive airflow and moisture removal in a small space. The controls are simple, and setup is a breeze.

With Aprilaire, you know you are getting quality and durability. The filter on this model is a mesh screen that only requires annual cleaning. The control panel is all digital, and you have the option to mount it on the top or the side. This makes it easier to use with different installation positions.

With 160 CFM airflow, this model will push air through homes up to 3800 square feet and remove 9 gallons of water per day. That’s equal to 70 PPD and is an incredible amount of moisture. The biggest concern you will have is where to drain that much water.

The unit doesn’t have an internal pump, so you must rely on the gravity drain functionality. As long as you are above the drain, even a few inches, you will be fine, though. This particular model in the series doesn’t include the drain hose, but any standard garden hose will fit.

It also works in low temperature settings. With a hot gas valve defrost cycle, the machine will shut down, defrost and start back up. The energy draw is low, and the machine is relatively quiet. Couple that with a 5-year warranty, and you have the makings of a great, long-term dehumidifier.

Pros

  • 5-year warranty
  • Control panel mounting options
  • Ducted or non-ducted install
  • Easy set up with LED controls
  • HGV defrost cycle

Cons

  • Does not include drain hose

2. Aprilaire 1870 Pro XL

Best Ducted Whole House Dehumidifier
Moisture Removal130 PPD
Coverage7200 square feet
Current Draw8.0 amps
Max Air Flow310 CFM
Drainage SystemContinuous gravity drain

Take a step up from our top pick and get serious about moisture removal. The 1870 XL is the best ducted whole house dehumidifier out there and for good reason. It has a lot of features rarely found in a unit this size and performs well.

Unlike our top pick, this model does come with a drain hose. You still need to position the unit above the drain so gravity can work, but that shouldn’t be much of an issue. Just keep in mind that this unit weighs over 110 pounds.

It also features the HGV defrosting cycles and multi-mount digital control panel. The primary installation difference is that this mode needs to be ducted. Without ducting with 310 CFM airflow, it will act more like a whole home fan than a dehumidifier.

Installation is just as easy as the top pick model, and the controls are identical. The big difference is how much water it can pull from the air. At 130 PPD, you won’t ever worry about humidity again. It also features an auto-shutoff, so it only runs when needed, which is good as this model can get a little loud. The fan motor spins at high RPMs, and there is a slight wobble.

You still get the Aprilaire 5-year warranty that covers the entire unit. Should anything ever go wrong, this US-based company will be more than happy to get you back on track as soon as possible.

Pros

  • 5-year warranty
  • Control panel mounting options
  • Includes drain hose
  • HGV defrost cycle

Cons

  • Ducting collars break easily
  • Ducting not included

3. TOSOT 4,500 Sq Ft Dehumidifier with Internal Pump for Home

Best Whole House Dehumidifier For Small Homes
Moisture Removal50 PPD
Coverage4500 square feet
Current Draw6.3 amps
Max Air Flow110-140 CFM
Drainage SystemReservoir or pump drain

If you have a smaller home, then the TOSOT dehumidifier might be the model for you. This whole house unit is portable, capable, and energy efficient. It has settings that are easy to use and understand, giving you full control over the humidity in your home.

This unit pulls air at two speeds, and even when running on high, the noise levels are quiet. A max 51dB rating will ensure that you can run the unit while you sleep or watch TV. There are also two drain options for you to choose from, giving you even more options.

If you decide to use the tank drain, the unit will hold about 1.5 gallons. When the tank gets full, the machine will shut down, and an LED indicator will alert you to empty the tank. If you would rather not mess with that or want a more permanent install, an internal pump will drain for you.

With a 12 foot drain height, you don’t need to worry about where the drain is located. Running the hose is simple, and the hose is included. You may need to opt for an extension, though. When you have it on continuous drain mode, the tank will still fill, but instead of shutting off, the pump will come on and drain the water from the tank itself.

The main issue here is that the 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.

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

4. Ultra-Aire Vertical Whole House Dehumidifier

Best Ducted Vertical Whole House Dehumidifier
Moisture Removal124 PPD
Coverage3000 square feet
Current Draw5.8 amps
Max Air Flow445 CFM
Drainage SystemContinuous drain (pump optional)

When space is limited, or you know exactly what you need and where it goes, the Ultra-Aire 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 airflow ducts mounted on top of the unit. It cannot function lying down.

Now for the bad news. This unit requires a controller for operation, and there isn’t one included. However, it is compatible with many models, including Honeywell and, of course, Ultra-Aire (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 humidity level you set 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

5. Ultra-Aire 180 Pint

Top of the Range
Moisture Removal180 PPD
Coverage4000 square feet
Current Draw9.7 amps
Max Air Flow406 CFM
Drainage SystemContinuous gravity drain

The Ultra-Aire 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 unit will remove an incredible 180 PPD of moisture. 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.

This is a continuous drain system, so you will need to include a drain hose (not included). 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 air.

The biggest draw to this unit is its quiet operation. 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 home.

Pros

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

Cons

  • Must be professionally installed
  • Not Energy Star compliant

6. ALORAIR Storm LGR Extreme

Best Compact Whole Home Dehumidifier
Moisture Removal85 PPD
Coverage2300 square feet
Current Draw5.62 amps
Max Air Flow210 CFM
Drainage SystemContinuous 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 unit will move air and remove 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 internal 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 your model.

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

7. COLZER

Best Industrial Whole House Dehumidifier On Wheels
Moisture Removal232 PPD
Coverage8000 square feet
Current Draw12 amps
Max Air Flow647 CFM
Drainage SystemContinuous gravity drain

If you want an industrial strength dehumidifier, look no further. The Colzer is the best industrial whole house dehumidifier you will find. With massive airflow and moisture removal, you can maintain any level of humidity you like.

This unit is heavy and still manages to be compact. While it weighs over 100 pounds, it comes with large wheels, and a pull handle already installed. All you have to do is plug it in, connect a drain hose, and turn it on. The rest is history, or at least humid air will be.

Moving up to 232 PPD with an incredible 647 CFM airflow means you won’t have to deal with humid, muggy air for very long. Any puddles in the area will also dry up real quick. In a work area or a wet basement, this can be the difference between living comfortably and replacing a lot of rotted wood.

Because of the high capacity of this machine, it will cover areas up to 8000 square feet. However, in a whole house set up, you can run it easily in anything over 1000 square feet. What you may not like is the warranty, though.

With only 1-year of coverage, the warranty is almost worthless. However, it is there if anything goes wrong. Getting a hold of Colzer is a little difficult for making a claim, though.

Pros

  • High capacity model
  • Easy transport with large wheels
  • Continuous drain and auto-shutoff
  • Set humidity level between 10 and 98%

Cons

  • 1-year warranty
  • Customer service isn’t the best

8. Waykar

Best Large Capacity Whole House Dehumidifier
Moisture Removal296 PPD
Coverage8000 square feet
Current Draw9.6 amps
Max Air Flow353 CFM
Drainage SystemContinuous gravity drain

Waykar is a name you may not know, but it is one you need to learn. This is hands down the best large capacity whole house dehumidifier on the market. It has incredible reach and removes a lot of moisture from the air in almost any setting.

Designed for warehouses, basements, and large homes, this model can produce. It offers a gravity drain system with included drain hose, so you never have to worry about water tanks. It also has one of the most complete and visually stunning LCD panels around.

Everything you need to know is right on the panel, including humidity, temperature, fan speed, mode, and operational alerts. It features an auto humidistat that lets you control humidity levels, complete with the auto shut off function.

For spaces from 2000 to 8000 square feet, you won’t notice puddles, condensation, or humid air as long as this machine is running. In a power outage, the computer board holds the settings and restores them on power restoration to continue operation.

However, it is known to not retain all of the settings and may need some adjustment after a power surge. The 1-year warranty is the weakest part of this machine, but with online registration, you can extend it to 2-years, which makes it a little better.

Pros

  • Touch-sensitive digital display
  • Easily transports on 4 caster wheels
  • Drain hose included
  • Auto shut off and auto restart

Cons

  • 1-year warranty (can be extended)
  • Auto-restart may not hold all previous settings

9. Dri-EAZ F413 Revolution LGR Compact Dehumidifier

Best Portable Whole House Dehumidifier
Moisture Removal80 PPD
Coverage5000 square feet
Current Draw 
Max Air Flow121-180 CFM
Drainage SystemContinuous pump drain

Dri-EAZ rounds out our list, and that doesn’t make it the least popular. This is arguably the best portable whole house dehumidifier in the industry. It does have a couple of drawbacks, but it isn’t anything that should genuinely concern you.

First and foremost, this unit comes with a simple digital operation panel. With the touch of a button, you can set humidity and get your readouts. The fan speed settings are just a couple of button presses, and you are well on your way to less humid air.

It also includes an internal pump that removes the water for you. With continuous drain and the pump, you don’t need to think about where you place this machine. The pump is capable of a 20-foot drain height so you can go up and out, if needed.

It also includes an incredible 40-foot drain hose and a 25-foot power cord. As we said, you can place it anywhere. Of course, there are some things that you may not like.

It doesn’t have a defrost cycle, nor will it shut down to unfreeze. While freezing is rare, it can happen. The unit relies on recirculating the warm, dry air internally before releasing it out into your room to keep the unit defrosted. It doesn’t always work.

Also, it only has a 1-year warranty that must be registered with proof of purchase on the website before it will activate. Time of the warranty depending on when it was purchased, though, not registered.

Pros

  • 40-foot drain hose included
  • 20-foot drain height
  • Simple digital controls

Cons

  • 1-year warranty
  • No defrost cycle

Negative Effects of Excessive Moisture in your Home

When you have too much moisture in your home, not a lot of good things happen. As we have already discussed, many health issues can worsen, including respiratory problems, flu, and other viruses.

However, there are also significant effects on your home. With too much moisture, mold and mildew can thrive, grow, and multiply rapidly. Condensation can form on windows, doors, and walls. Not only does this promote more mold, but it can also cause the drywall to deteriorate and wood to rot.

Ideal Humidity Level for the Home

Humidity changes over time and during the day. Having a dehumidifier will help regulate those changes and keep your home at a constant humidity level. What should that level be, though?

Recent studies, as well as on-going ones, have found that humidity levels between 30 and 60% are best for indoor climates. In fact, they also suggest that a humidity level of 43% is ideal for stopping flu viruses, including COVID-19. There is also a direct link to humidity levels and allergen exposure and allergic disease.

Most whole house dehumidifiers can be set to a specific humidity percentage. The auto-humidistat features will force the machine to run until the humidity level is at or just below your setting choice and will shut off until it rises again.

Dehumidifier Sizing Guide

As you have seen, dehumidifiers come in a lot of different sizes and capacities. So how big of a dehumidifier do you need for your home? The answer lies in the humidity levels of your air and the square footage of your home.

You can use a hygrometer and other air quality tools to figure out your home’s humidity, temperature, and pressure readings. And if you have the square foot measurements (length times within the living space), you have all you need to find the perfect size dehumidifier for your needs.

On average, there is a direct connection between the square footage of the space and the dehumidifier’s PPD rating. While it isn’t an exact science, it is close enough to work for your needs.

Any dehumidifier with a PPD rating between 20 and 30 PPD will work for homes and spaces at or below 500 square feet. Many in this range will actually go much higher, including up to 1500 square feet.

A 50 to 70 PPD rating will cover spaces up to 2500 square feet with a humidity level above 70%, and anything higher, such as a 90 PPD, will work in any space size with a humidity level at or below 90%.

Dehumidifier Running Costs

The cost to run your dehumidifier will depend on the unit’s wattage and how much you are charged per kilowatt-hour (kWh). This math is relatively simple. First, you need to know the wattage of your unit per hour of use.

If the wattage isn’t on the label, then the voltage and amps will be. Multiply volts and amps, and you have the watts. Divide the watts by 1000, and you have the kilowatts per hour.

When you have your kWh rating, you just multiply this by what your electric company charges you per hour (the national average is about 4 cents per kWh, though some areas are much lower or higher). All that is left is to multiply this number by how many hours you run the unit, on average, for the year.

If you don’t want to do all the math, the basic averages may be enough. A 20 PPD unit running 5 hours per day, every day, will cost between $28 and $35 per year to run. 70 PPD units can average $350 or more per year.

How to Install Whole House Dehumidifiers

Installing your whole home dehumidifier is a fairly simple thing. The first thing to do is decide where it will go. Most installs go in the basement, crawl space, or laundry room. If ducting is needed, intake and exhaust can tie in with the home’s vents or be routed to their own spaces.

You also need to know where the drain will be in relation to the dehumidifier. Make sure that the gravity drain models are positioned close to and above the drain. Pump drain models can be further away or even below. Then put them in place. Make sure they are level and plug them in.

Some models have control panels for monitoring or remote operation. Route the cables to where you want the panel installed, plug it in, and mount the panel.

After that, you just need to set up the dehumidifier, speed, humidity percent, drain options, and test it out. Once everything runs how you like, you only have care and maintenance left and a home with less humidity.

Care and Maintenance of Dehumidifiers

Care for these machines is fairly simple. They don’t require a lot of careful looking after. Most of the care is just keeping the intake and exhaust vents clean of dust and debris to maintain airflow.

You will also want to check the drain and hoses from time to time for leaks, clogs, or standing water areas due to bends or kinks in the hose. The only other thing that is needed is to replace or clean the filter. This is usually done every 250 hours of operation, though some filters only need to be washed every 6 to 12 months.

People Also Ask (FAQ)

Whole house dehumidifiers vs. humidifiers – what is the difference?

The main difference is what these two machines do. Dehumidifiers remove moisture from the air while humidifiers add moisture. Each one has its uses, and they both work to maintain healthy humidity levels in your home. 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 dehumidifiers cost?

Depending on the size, capacity, and install type, the dehumidifier isn’t an expensive appliance. For the smaller, portable units, costs range between $150 and $300 on average. Larger units can get more expensive, with prices between $1000 and $3500 for large capacity whole home units.

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. Once the humidity level is reached, the machine should shut or (or be turned off) until the humidity rises again. Leaving them on all the time will reduce the moisture to dangerously low levels.

Where is a good place to buy these units?

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

Whole house dehumidifiers work to change the humidity in your entire home. Unlike smaller models that only work in a single room, these units are installed, usually with ducting, to bring the humidity levels of the whole house in safe ranges.

Finding the best whole house dehumidifier can be tough. Hopefully, this article showed you which models to focus on and why. Still undecided? Check out our top pick once more. The Aprilaire 1830 is among the best dehumidifiers with plenty of features, high capacity, and easy install. You won’t be disappointed.

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