Best RV Dehumidifiers of 2021 – Top Review Guide

| Last Updated: September 9, 2021

If you’ve used an RV, you would know that the vehicle, being exposed to the outdoor environment for long stretches, is extremely prone to high levels of humidity.

If you don’t invest in a dehumidifier, humidity can cause considerable damage to your vehicle, the extent of which would be spread over the entire structure.

This article will serve as the ultimate guide for buying a dehumidifier to protect your RV.

Comparison of the Best RV Dehumidifiers

IMAGEPRODUCT
  • Our Rating: 10.0
  • Pints: 40
  • Warranty Length: 1 year
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  • Our Rating: 9.8
  • Pints: 30
  • Warranty Length: 1 year
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  • Our Rating: 8.6
  • Pints: 30
  • Warranty Length: 1 year
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  • Our Rating: 8.0
  • Pints: 50
  • Warranty Length: 1 year
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  • Our Rating: 7.4
  • Pints: 30
  • Warranty Length: 1 year
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Why Would You Want a New Dehumidifier for Your RV?

We’ve already said that RVs are prone to humidification a lot more than any other vehicle. But how exactly? An RV is basically a second home while you’re on the road. It’s a recreational vehicle where you’ll find yourself performing all of your day-to-day activities from cooking to bathing.

All such activities being performed in a closed vehicle would lead to eventual accumulation of water vapors within the RV. This happens a lot faster than you can imagine, given the smaller size of the vehicle.

Photo credit: aluminarium.com

All these accumulated vapors not only make breathing uncomfortable but also affect the soft furniture in your RV. Not to mention the problems that may arise with mold around the vehicle!

To avoid these problems, it is best to invest in a good dehumidifier. The device will save you from a number of issues and expenses that you may face later on without a dehumidifier.

Aspects to Consider Before Buying

There are a number of dehumidifiers in the market, and a lot of good ones too. But not every good dehumidifier is going to work for you. There are some aspects that you need to carefully look at before you buy a dehumidifier for your RV.

Space in the RV

The foremost aspect to consider is the space in the RV that needs to be humidified. Once you’ve considered the space in the RV, you’ll have a general idea of what sort of dehumidifier you need to purchase because certain devices are designed to dehumidify smaller spaces while others work just as efficiently in larger areas.

Photo credit: artofrv.com

Portability of the Device

It is also important to make sure that the model that you pick for your RV is portable. Since you’re always on the go in the RV, you might need to move around the device with not much energy to spare on such tasks. It is therefore crucial that your picked model is portable and convenient to handle.

Easy to Install & Control

The device that you pick also needs to be easy to install and control. If this aspect is overlooked, you might have a hard time setting it up, and all your dreams of using the device right out of the box will be long gone. You do not want to be stuck reading manuals when you need to be reading maps.

Review of the Best RV Dehumidifiers

Now that you’ve an idea of what you need to look at while buying a dehumidifier for your RV, it is time you start considering your options. To get you started right away, without wondering where to look, we’ve reviewed the best dehumidifiers that you could use in your RV.

Best Overall

Shinco SDO-40P

Shinco 2,000 Sq.Ft Dehumidifier for Medium Spaces, Home, Office, Basement, Bedroom, Bathroom, Laundry room, Garage. Auto or Manual Drain, Quietly Remove Moisture & Control Humidity

Product Ratings

10.0

Affordability:

Rating: 4.5 out of 5.

Cost Efficiency:

Rating: 5 out of 5.

Warranty:

Rating: 2 out of 5.

Space Efficiency:

Rating: 4 out of 5.

Portability:

Rating: 2.5 out of 5.

How We Determined These Scores

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Quick Product Specs:

Pints (DOE): 40

Warranty Length: 1 year

Size & Weight: 11.5”x7.48”x19.73”; 27 lbs.

Tank Capacity: 2 Liters

Decibel Level: 48 dB

Review

Earning the top spot on the best dehumidifiers for RVs, the Shinco SDO-40P provides some of the best water absorptions in the space, offering a 5-star cost-efficiency rating to go along with a 4.5-star affordability rating. It’s also perfectly sized to fit into the nooks and crannies of your RV, while a set of four casters provides rotating action and the ability to park the unit right where you need it.

Bottom Line

Despite its casters and two handles, the weight of the Shinco SDO-40P gives it a 2.5-star portability rating, but it’s a mere scratch on an otherwise superior product. Add in its 4-star space efficiency rating to go along with its affordability and overall performance, and this Shinco dehumidifier checks all the boxes.

Pros

Covers 2,000 sq. ft.

Quick dryer for clothes

24-hour programmable timer

Casters for 360-degree rotation

Two drainage options depending on how you’re using it in your RV

Cons

Self-draining mechanism can get clogged

Some buyers say its too loud when sleeping

Runner-up

Shinco SDL-30P

Shinco SDL-1500 Sq.Ft Dehumidifier for Medium Room, Home, Basement, Bedroom, Bathroom, Auto or Manual Drain, Quietly Remove Moisture & Control Humidity

Product Ratings

9.8

Affordability:

Rating: 5 out of 5.

Cost Efficiency:

Rating: 4 out of 5.

Warranty:

Rating: 2 out of 5.

Space Efficiency:

Rating: 3.5 out of 5.

Portability:

Rating: 3.5 out of 5.

How We Determined These Scores

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Quick Product Specs:

Pints (DOE): 30

Warranty Length: 1 year

Size & Weight: 10.08”x8”x16.34”; 21 lbs.

Tank Capacity: 1.25 Liters

Decibel Level: 39 dB

Review

If you want a less humid RV but don’t want the noise of a dehumidifier, you can have the best of both worlds with the Shinco SDL.

The smaller sibling of the Shinco SDO-40P, the SDL offers similar performance, albeit with a half-star rating below the SDO in terms of space and cost efficiencies. However, it’s slightly lighter and smaller than the SDO, providing more versatility in terms of storage and placement, earning a 3.5-star rating in the portability category.

Bottom Line

If you want a high-quality efficient unit without the bulk or the need for a higher water absorption rate, the Shinco SDL should get the job done without a fuss. The main idea is whether you want 30 or 40 pints of water absorption, so in drier climates, this dehumidifier work and saves you a few bucks at the same time.

Pros

Covers 1,500 sq. ft.

Power outage auto restart

Two adjustable fan speeds

Super-quiet operation, ideal for RV bedrooms

A durable lift-up handle to conserve space and move with ease

Cons

Power cord and drainage hose are absurdly short

Problems with tube/automatic drainage getting clogged

Inofia HD161A

Inofia 30 Pint 1500 SQ FT Home Dehumidifiers for Basements Bathroom Garage Laundry/Store Room, Portable Dehumidifiers for Small & Midium-size Rooms with Continuous Drain Hose & Water Reservoir

Product Ratings

8.6

Affordability:

Rating: 4 out of 5.

Cost Efficiency:

Rating: 3.5 out of 5.

Warranty:

Rating: 2 out of 5.

Space Efficiency:

Rating: 2 out of 5.

Portability:

Rating: 3 out of 5.

How We Determined These Scores

We may earn commission from purchases made from our links, at no additional cost to you

Quick Product Specs:

Pints (DOE): 30

Warranty Length: 1 year

Size & Weight: 12.2”x8.2”x17.3”; 25 lbs.

Tank Capacity: 1.89 Liters

Decibel Level: 46 dB

Review

As the only non-Shinco product on this list, the Inofia HD161A has some mighty big shoes to fill, but it does so with aplomb. Though it comes with a higher price tag (but still with an above-average 4-star affordability rating), the Inofia earns its ranking with a slew of top-notch features. Thanks to auto-defrost, quiet operation, and even an audible alert to remove the tank, it adds a touch of flair to the more stripped-down Shinco lineup.

Bottom Line

Earning just a 2.0-star rating for space efficiency due to its relatively small dehumidification area, the Inofia HD161A isn’t quite the value of the Shinco brands listed above. Nevertheless, if you want to make sure to always empty the water tank, the audible ding and the extra features should put this unit on your shortlist.

Pros

Covers 1,056 sq. ft.

Auto-stop and auto-restart features

Audible alerts to empty the water tank

Auto-defrost to avoid damage to the unit

One of the quietest RV dehumidifiers available

Cons

Some buyers claim that it doesn’t work up to 1,056 sq. ft., but may not be a problem in an RV

Shinco SDZ1-50P

Shinco 3000 Sq.Ft Energy Star Dehumidifier for Medium to Large Rooms and Basements - Quiet Remove Moisture & Control Humidity

Product Ratings

8.0

Affordability:

Rating: 2.5 out of 5.

Cost Efficiency:

Rating: 4.5 out of 5.

Warranty:

Rating: 2 out of 5.

Space Efficiency:

Rating: 2.5 out of 5.

Portability:

Rating: 0.5 out of 5.

How We Determined These Scores

We may earn commission from purchases made from our links, at no additional cost to you

Quick Product Specs:

Pints (DOE): 50

Warranty Length: 1 year

Size & Weight: 13.5”x9.4”x20.1”; 33 lbs.

Tank Capacity: 4 Liters

Decibel Level: 48 dB

Review

Surprise! Another Shinco makes its appearance on the list, but this time it’s the larger SDZ1-50P. With a 50-pint capacity, this unit is larger than some other available options, giving it a strong 4.5-star rating for cost efficiency.

It’s also Energy Star certified, giving it the power of some other units but without draining your battery or power source. And if you’re an avid hiker or cyclist when you’re rolling out in your RV, the quick-drying feature is ideal for getting rain-soaked clothes wearable again.

Bottom Line

While the larger capacity can remove more water from the air, that’s the top-of-the-line feature for the Shinco SDZ1-50P. It suffers from some issues in terms of portability, earning 0.5 stars courtesy of its 33-pound construction, as well as a low affordability rank of 2.5 stars because of its larger pint capacity. Still, if you’re looking for pure power and the most water absorption, the SDZ1-50P might just fit the bill.

Pros

Energy Star Certified

2- or 4-hour sleep timer

Covers up to 3,000 sq. ft.

Auto restart after a power outage

Quick-drying feature that’s perfect for clothes

Cons

Humidistat can be off by about 10%

Some users report that it’s louder than advertised

Shinco SDZ1-30P

Shinco 1,500 Sq.Ft Energy Star Dehumidifier, Ideal for Medium Living Room, Basements, Bedrooms, Bathrooms, Auto or Manual Continuous Drain, Quietly Remove Moisture & Control Humidity

Product Ratings

7.4

Affordability:

Rating: 3 out of 5.

Cost Efficiency:

Rating: 3 out of 5.

Warranty:

Rating: 2 out of 5.

Space Efficiency:

Rating: 1 out of 5.

Portability:

Rating: 2 out of 5.

How We Determined These Scores

We may earn commission from purchases made from our links, at no additional cost to you

Quick Product Specs:

Pints (DOE): 30

Warranty Length: 1 year

Size & Weight: 13.5”x9.4”x20.1”; 28 lbs.

Tank Capacity: 4 Liters

Decibel Level: 48 dB

Review

Similar to the SDL, the SDZ1-30P offers 30 pints of water-absorbing power, keeping the interior of your RV as dry as possible. A 3-star affordability rating means that the unit isn’t quite the bargain buy as some of its siblings, but it’s still not a bad purchase when the SDL isn’t available.

Bottom Line

Despite its 30-pint absorption, it’s not as powerful as other units, earning it a mere 1-star rating for space efficiency. It’s also 28 pounds, which is quite some weight for a 30-pint unit, which led to its 2-star portability rating. But these issues aside, the SDZ1-30P remains a top choice for RV owners with an affordable price tag and some other nice features.

Pros

Sleep timer

Covers 1,500 sq. ft.

Energy Star certified

Adjustable fan speeds

Easy-to-read LED control panel screen

Cons

Contains only a 2-foot hose

Some problems with the auto-defrost feature, according to some buyers

Types of RV Dehumidifiers

Dehumidifiers are mainly of three kinds, but only two of them are suitable for use in RVs. This is because compressor-based dehumidifiers are too big and too noisy to be appropriate for use in an enclosed space like a vehicle. The other two types of dehumidifiers are absolutely perfect for use in an RV.

Thermo-Electric Dehumidifier

As the name suggests, this device uses a thermo-electric system that sucks the excessive moisture out from the air in the room. What really makes this ideal for use in an RV is their smaller size which doesn’t occupy much space and also proves to be easy to move around.

The small size has no effect on the efficiency, however, and they are perfectly capable of eliminating just as much moisture from the air as any other device.

Desiccant Dehumidifier

A desiccant dehumidifier is similar to the thermo-electric in terms of its size and efficiency. It is compact and highly functional, putting it on par with all other dehumidifiers.

Shinco SDO-40P

What’s different between these dehumidifiers and the thermo-electric ones is their mode of functioning. These units use a moisture-absorbing substance that absorbs the excessive water vapors from the air and decreases the level of humidity.

Conclusion

An RV is a second home that is constantly on the move, and given all the activities that go on inside this closed space makes it extremely prone to excessive humidity. If not dealt with properly with a good dehumidifier, this may affect not only your breathing but also the structure of your vehicle. So save yourself from a number of future expenses and invest in a good RV dehumidifier that’ll help you in the longer run.



My name is Bob Wells and I am a retired HVAC tech from Washington state. I am currently retired and no longer do much with HVAC, however, I feel like I have a lot of knowledge in the subject and I wanted to create a website where I could talk about what I've learned and help upcoming HVAC techs. Find more info about me and HVAC Training 101.