Buyers Guide & Information

Dehumidifier for Flood Damage

We have reviewed the best dehumidifiers for flood damage. Remove unwanted water when necessary with these reliable appliances.

Bad plumbing, harsh weather, or a natural disaster can all lead to flooding and cause irreparable damage to your house. If you’ve dealt with this, you would be well aware of the painstaking task of trying to remove moisture from your walls, floor, furniture, and upholstery.

To help you deal with this precarious situation, you need to invest in a dehumidifier. The primary use for this machine is to make your house inhospitable to mold and mildew so that you can reclaim water-damaged items!

How Dehumidifiers Help With Flood Damage

Once the floodwaters recede, the walls and floors of the affected area may look dry. However, ignoring them can lead to long-term damage because they can still retain moisture within their molecular structure.

Drywalls and wood are porous and retain moisture, and can break down over time if left unattended. To combat this problem, you can use a dehumidifier to prevent the floor and walls from rotting and warping.

Plus, residual moisture can affect humidity levels inside your home and cause mold growth and health problems. A dehumidifier will help maintain your home’s humidity levels after a flood and prevent further mold growth.

Dehumidifier for Water & Flood Damage Compared

Image
ALORAIR Commercial Water Damage Restoration...
XPOWER XD-125 Industrial Commercial...
COLZER 164 Pints Commercial Dehumidifiers...
Dri-Eaz 1200 Commercial Dehumidifier with...
Dri-Eaz Revolution LGR Commercial...
Model
ALORAIR Commercial Water Damage Restoration...
XPOWER XD-125 Industrial Commercial...
COLZER 164 Pints Commercial Dehumidifiers...
Dri-Eaz 1200 Commercial Dehumidifier with...
Dri-Eaz Revolution LGR Commercial...
Moisture Removal
Saturation — 190 points per day AHAM — 85 pints per day
Saturation — 125 pints per day AHAM — 76 pints per day
Saturation — 164 pints per day AHAM — 90 pints per day
Saturation — 145 pints per day AHAM — 64 pints per day
Saturation — 198 pints per day AHAM — 90 pints per day
Coverage Area
2000 square feet
2000 square feet
7000 square feet
800 square feet
2000 square feet
Current Draw
5.4 amps
7.3 amps
12 amps
3 amps
6.2 amps
Image
ALORAIR Commercial Water Damage Restoration...
Model
ALORAIR Commercial Water Damage Restoration...
Moisture Removal
Saturation — 190 points per day AHAM — 85 pints per day
Coverage Area
2000 square feet
Current Draw
5.4 amps
Price
-
Price
Image
XPOWER XD-125 Industrial Commercial...
Model
XPOWER XD-125 Industrial Commercial...
Moisture Removal
Saturation — 125 pints per day AHAM — 76 pints per day
Coverage Area
2000 square feet
Current Draw
7.3 amps
Price
Image
COLZER 164 Pints Commercial Dehumidifiers...
Model
COLZER 164 Pints Commercial Dehumidifiers...
Moisture Removal
Saturation — 164 pints per day AHAM — 90 pints per day
Coverage Area
7000 square feet
Current Draw
12 amps
Price
-
Price
Image
Dri-Eaz 1200 Commercial Dehumidifier with...
Model
Dri-Eaz 1200 Commercial Dehumidifier with...
Moisture Removal
Saturation — 145 pints per day AHAM — 64 pints per day
Coverage Area
800 square feet
Current Draw
3 amps
Price
Image
Dri-Eaz Revolution LGR Commercial...
Model
Dri-Eaz Revolution LGR Commercial...
Moisture Removal
Saturation — 198 pints per day AHAM — 90 pints per day
Coverage Area
2000 square feet
Current Draw
6.2 amps
Price

Finding A Dehumidifier For Treating Water Damage

Before we discuss how to use a dehumidifier for water damage, it’s important to talk about a few key terms.

Daily Extraction Rate

While most dehumidifier brands claim that they can extract up to 20 liters per day, it is only possible with 85% relative humidity and temperatures above 30°C.

Dehumidifiers are classified by both saturation and AHAM ratings.

Saturation ratings are taken at extreme conditions of 90% relative humidity and 90°F. In contrast, AHAM ratings are more suited for average conditions: about 60% relative humidity and 80°F.

When using a dehumidifier for flood damage, the saturation rating is more relevant.

Temperature Requirements

It is recommended to run dehumidifiers at temperatures above 60°F. Otherwise, the extracted moisture can freeze on the coil, resulting in damage.

Unplug your dehumidifier when the temperature dips below 65°F.

Furthermore, you may not need a dehumidifier if the weather is chilly as cold air is naturally dry. The need for a dehumidifier arises when the temperature is approximately 60°F-70°F or higher, with high outdoor humidity.

Coverage Area

A 30-pint dehumidifier is ideal for areas up to 1500 sq. ft., while 40 and 50-pint dehumidifiers are better for spaces up to 2000 sq. ft.

Furthermore, 60 to 70-pint dehumidifiers are best for spaces above 2000 sq. ft., regardless of how damp they are. A dehumidifier for a flooded basement in a typical suburban home should have a 40-pint or higher capacity.

Drainage

Dehumidifier drainage happens in three ways: using a gravity-operated drain pipe, an external condenser, or an internal condensate pump.

These days, most dehumidifiers come with built-in internal condensate pumps, as this is the most convenient and hassle-free drainage option.

And if your machine has an automatic drainage option, you are good to go!

Additional Features
  • Filter Indicator Light: Lights up to indicate that the filter needs cleaning
  • Built-In Humidistat: Used to monitor and control humidity and moisture levels
  • Auto Reset: Automatically restarts the dehumidifier after a power failure or outage
  • Frost Sensor: Detects the formation of ice and automatically shuts off the compressor
  • Digital Controls: Allow you to view and control humidity, temperature, speed, and other features
  • Noise levels: Average dehumidifiers have noise levels of around 40-50 dB, which is relatively quiet
  • Warranty: Warranty varies from 1-year to 5-year warranty on different models
Pricing

The price range of dehumidifiers extends from as low as $100 and goes up to $1000 or more. A centrally installed or HVAC humidifier can cost upward of $1000 and needs to be installed professionally.

However, most dehumidifiers in the market are portable, and the basic models feature in the price range of $100-$300.

Furthermore, smaller refrigerant dehumidifiers start at $100, and the larger ones go up to $300. While highly efficient, desiccant dehumidifiers are costlier and start at around $175 for a basic variant.

5 Best Dehumidifiers For Water Damage

1. ALORAIR 85 PPD

Our Top Pick
Moisture Removal Saturation — 190 points per day
AHAM — 85 pints per day
Coverage Area 2000 square feet
Current Draw 5.4 amps
Operating Temperatures 33-105 degrees F
Drainage System Automatic

The Alorair Storm LGR dehumidifier prioritizes convenience and ease of operation for the user.

It comes equipped with a built-in condensate pump that allows you to drain anywhere, as it is also incredibly easy to transport.

Additionally, it’s safe to handle in flooded areas, and the rubber strip keeps the interior of the circuit board protected from moisture.

It comes with a long three-prong 20-feet power cord, making it an ideal choice during remote restoration and cleaning jobs. The power cord and condensate hose are also easily attachable to the side for easy storage.

Freon leakage is a common symptom of a compromised dehumidifier. To combat that, this model is fitted with a rare earth alloy tube evaporator, which extends the coil’s lifespan and maintains its heat transfer abilities.

Furthermore, this dehumidifier is incredibly user-friendly and easy to operate, with a bright LED display panel and indicators for both temperature and humidity.

It is operable in a range of temperatures, starting from 33°F up to 105°F, and it offers high energy efficiency, with a current draw of 5.62 amps on a 115 V power supply. It also comes with an auto defrosting system, a 5-year warranty, and an excellent after-sales service department to handle all your concerns.

What We Like
  • Auto defrosting system
  • Waterproof design
  • 5-Year warranty
  • Energy efficient
What We Don’t Like
  • Moderately noisy

2. XPOWER XD-125

Best Dehumidifier For Residential Water Leaks
Moisture Removal Saturation — 125 pints per day
AHAM — 76 pints per day
Coverage Area 2000 square feet
Current Draw 7.3 amps
Operating Temperatures 33-100 degrees F
Drainage System Automatic

This commercial dehumidifier is capable of accelerated drying. Wherever there is flooding or water leakage, this unit will eliminate the moisture before mold starts to take form.

Furthermore, it removes up to 76 pints per day in an environment with 60% relative humidity. The XD-125 can also remove 125 pints per day at saturation levels, making it an ideal dehumidifier for water leaks.

We love that it automatically removes moisture — set the desired humidity level on its user-friendly digital control panel, and come back to find the area dehumidified.

This feature certainly takes the cake over manually operated models, as you no longer have to monitor the collection levels nor drain the collected water.

This dehumidifier is incredibly versatile, portable, and built to last long because of its rugged construction, shock-absorbing tires, 20 ft. long drain hose, and a 25 ft. power.

Also, its R410A refrigerant and high-quality rotary compressor are built to operate in temperatures ranging from 33°F to 100°F.

The XD-125 is designed in-line with leading industry standards to prioritize safety. It is ETL/CETL safety certified and comes with a one-year warranty.

This machine will effectively remove moisture in flooded areas and drastically reduce the chances of water damage after a flood.

What We Like
  • ETL/CETL safety certified
  • Portable
  • Strong construction
What We Don’t Like
  • 1-year limited warranty

3. COLZER 164/232 PPD

Best Dehumidifier For Severe Flooding
Moisture Removal Saturation — 164/232 pints per day
AHAM — 90/110 pints per day
Coverage Area 7-8000 square feet
Current Draw 12 amps
Operating Temperatures 41-95 degrees F
Drainage System Automatic

This heavy-duty dehumidifier is capable of removing up to 232 pints of water a day (164 PPD model also available). This unit is built for commercial, residential, and industrial use, and it can effectively work an area as large as 8000 sq. ft.

It’s ideal for dehumidifying flooded warehouses, workshops, supermarkets, and storage compounds.

With an impeller that moves at speeds of 353 CFM, this dehumidifier will extract moisture from every corner of the room. And if time is of the essence, it can dry up a medium-sized room in less than 10 minutes.

Furthermore, it’s fitted with an easy-to-use control panel, which allows it to set and maintain your desired humidity from a range of 10% to 98% RH levels. It also lets you monitor the temperature and humidity during cycles and set an automatic timer.

We appreciate that this unit is designed to withstand the physical toll of portability. It’s fitted with two large 8-inch semi-pneumatic wheels, two flexible front casters, and a tough handle that can handle a trip down multiple flights of stairs.

This COLZER model is as advanced as dehumidifiers can get. It’s fitted with an automatic humidistat, auto restart, auto defrost features, and continuous drainage capability, making for automatic hassle-free moisture control!

This unit can bring down humidity levels extremely fast and help avoid irreparable water damage. It undoubtedly ranks among the best dehumidifiers for flood damage.

What We Like
  • Automatic humidistat
  • Auto defrost feature
  • Portable
  • Fast drying time
What We Don’t Like
  • High power consumption
  • 2-year warranty

4. Dri-Eaz 1200

Top Of The Range
Moisture Removal Saturation — 145 pints per day
AHAM — 64 pints per day
Coverage Area 800 square feet
Current Draw 3 amps
Operating Temperatures 33-100 degrees F
Drainage System Automatic

The Dri-Eaz 1200 is truly a top-of-the-line dehumidifier for water damage, as it can remove up to 145 pints a day at saturation and 64 pints per day under 60% RH AHAM conditions.

It’s also suitable for hot and cold weather, with an operating temperature range between 33°F-100°F.

Drawing 6.4 amps on a 115 V power supply, it’s economical and can process air at a rate of 227 cubic feet per minute. Additionally, the display panel allows users to select from German, English, Spanish, or French.

The Driz-Eaz has a 40-inch condensate hose and features automatic drainage. This makes it ideal for people that have limited outdoor or bathroom space to drain out water.

This dehumidifier boasts a sturdy build. It is made using rotomolded, thick polyethylene and has strong corners to safeguard against damage or leaks. It’s also fitted with HAF filters to keep the inner components safe from dirt.

If you’re looking for a dehumidifier for a flooded house, basement, garage, or office, this is an excellent option to consider. It’s incredibly versatile and portable and is easily transportable with its semi-pneumatic wheels. Moreover, its automatic pump out allows for easy drainage wherever you want.

Bid farewell to mildew, mold, rust, and rot with the Dri-Eaz 1200.

What We Like
  • Fast drying time
  • Sturdy construction
  • Easy portability
  • Six-year warranty on coils and compressor
What We Don’t Like
  • Not suitable for large spaces

5. Dri-Eaz F413

Best Compact Dehumidifier For Water Damage
Moisture Removal Saturation — 198 pints per day
AHAM — 90 pints per day
Coverage Area 2000 square feet
Current Draw 6.2 amps
Operating Temperatures 33-100 degrees F
Drainage System Automatic

The Dri-Eaz F413 is a state of the art dehumidifier with modern LGR technology, fitted inside a compact frame.

This heavy-duty model is perfect for restoration purposes, and that is reflected in its design. With a stackable and conservative design, this dehumidifier is easy to move from place to place. Restorers and commercial dryers swear by it because it provides extra drying power and boosts profitability.

Furthermore, it has rugged rotomolded housing that is specifically designed for flooded environments and restoration sites.

This machine comes fitted with an extra-long 40-feet drain hose that can pump out water from 20-feet above the unit. Additionally, you don’t need to worry about moving it around because it comes with a 25 ft. detachable power cord.

However, don’t be fooled by its size. It matches up to large dehumidifiers as it pumps up to 17 gallons a day. It drys out saturated, waterlogged areas in no time and is perfect for extracting moisture out of carpets and walls.

And if that wasn’t enough, it can also fit in tight spaces such as hallways and corridors. Plus, the automatic pump-out makes for easy drainage.

The Dri-Eaz F413 is an incredibly user-friendly model, as it features real-time display panels that show the temperature and humidity of both inlet and outlet.

What We Like
  • Auto-restart feature
  • It fits in small spaces
  • Large coverage area
What We Don’t Like
  • 2-years limited warranty

Household Vs. Commercial Dehumidifiers For Flood Damage

Household dehumidifiers are designed for smaller spaces, such as bedrooms, and hence do not have the heavy moisture removal capabilities of commercial models.

However, they are portable, quieter, and more aesthetically appealing to complement the house’s décor.

Although portable, commercial dehumidifiers are relatively larger and are meant for use in huge spaces, such as open halls and warehouses. They have much higher moisture absorption rates and are better suited for restoration and water damage control.

Residential dehumidifiers may not be suitable for extensive moisture removal inside homes, especially after flooding or a pipe burst.

A dehumidifier’s moisture removal capacity is measured in pints per day, referring to the pints of water it can remove from the area in 24 hours. Commercial and industrial dehumidifiers have high pint per day ratings, often going up to 200 or 250.

In contrast, residential dehumidifiers average around 40 to 60 pints per day.

Some people also prefer to install HVAC systems with a built-in dehumidifier feature, but these systems are expensive and hard to maintain.

Calculating Dehumidifier Size For Heavy Moisture Control

When choosing a dehumidifier for heavy moisture control, you will also need to consider your area’s conditions. If you’re dealing with a particularly damp space, you will need a unit with a larger capacity.

A dehumidifier that removes 50 pints per day in average conditions may not work well at removing the same amount of moisture in saturated conditions.

If the room you want to dehumidify is located in a humid climate, add 10 pints to your requirement. Additionally, if there are water-based appliances in the room – such as a washer – add 5 pints. Furthermore, if the space is open to many people, add 5 pints.

How To Use A Dehumidifier Efficiently

The microorganisms that cause mold to grow are always around us. Moisture can cause mold growth on carpets and upholstery in less than 24 hours, and they will continue to thrive and grow as long as the moisture level is high.

Also, wood and drywall are popular for mold colonies to thrive inside.

To avoid any mold growth, open up your windows and doors. Clear out all the wet items and get rid of any soaked materials, like wallpaper and carpets. If they aren’t removable, use a vacuum or fans to help dry and speed up evaporation.

If you find mold growing already, use commercial mildew and mold removers to get rid of them.

Most importantly, use dehumidifiers to bring down the moisture content and help up the drying process.

Keep the dehumidifier running until the water has dried out from all the porous surfaces. This can take several weeks for a flood-damaged building.

Furthermore, if you are using a dehumidifier for the first time, follow the instructions. When starting the unit, set the humidity levels to the lowest to adjust the room humidity. In most models, the lowest humidity level is 30%.

Let it run for a couple of cycles until the humidity levels stabilize, after which you can adjust the humidity to your desired level.

It is important to maintain unrestricted airflow to and from the dehumidifier. There should be no blockages in the flow of air to the unit. Models with vents on the back and sides need clearance from all sides of at least 6 inches.

Always remember to check and clean the air filters regularly. You might need to replace your air filter after a few months. A dirty air filter can clog up the vents and affect the performance of your dehumidifier. When cleaning the unit, always unplug it.

People Also Ask (FAQ)

How Long Does It Take To Dry Out A House After A Flood?

Completely drying out a house after a flood can take anywhere from 24 hours to several weeks, depending on the extent of water damage and drying method.

What Type Of Maintenance Do These Dehumidifiers Need?

Dehumidifiers don’t generally need a lot of maintenance. Still, you will need to conduct routine inspection and cleaning, such as emptying the tank, cleaning the filter, and vacuuming the coil.

How Much Does It Cost To Run A Dehumidifier When Drying Out Water Leaks?

Check the energy consumption of your dehumidifier on the label or manual. Next, multiply it with the KWh (kilowatts per hour) and your state’s power rate.

Where Is A Good Place To Buy These Units?

You can find a wide variety of residential, commercial, and restoration dehumidifiers on Amazon and Sylvane. The reviews on these sites can help you choose an option that suits you better.

Conclusion

Out of our reviewed choices, we found the COLZER 232 PPD to be the most effective unit for extensive flood damage and moisture control purposes.

It can effectively dry out extremely high moisture levels rather quickly and delivers value for money!

Josh M
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