How to Choose the Best RV Dehumidifier for Your Needs Complete Guide

Are you feeling overwhelmed by the range of RV dehumidifiers available on the market? You’re not alone!

Finding the perfect dehumidifier for your RV can seem daunting. This guide is here to make it easier to understand what features are most important and how to choose the best dehumidifier for your needs.

It’s no secret that humidity levels inside an RV can get quite high. This can cause mould, mildew and musty odours to form and take over your living space. A dehumidifier can help combat the problem. It helps to reduce airborne contaminants, reduce odour and keep the environment healthy and comfortable.

When shopping for a dehumidifier for your RV, there are a few key factors that should be taken into consideration before making a purchase. In this guide, we’ll provide tips on choosing the best RV dehumidifier for your needs so that you can make an informed decision when it comes time to buy. We’ll cover the differences between refrigerant and desiccant models as well as tips on proper installation, maintenance and more. Read on to learn more about finding the perfect dehumidifier for your recreational vehicle!

Factors to Consider when Choosing an RV Dehumidifier

Finding the right dehumidifier for your RV or camper will depend on several factors, including size, features and cost. RV dehumidifiers can come in a variety of sizes and models to suit any space and budget. Knowing what to look for in an RV dehumidifier will help you find the right device that best meets your needs.

Size: Make sure you choose a dehumidifier that is sized appropriately for the area where you plan to install it. When measuring, consider not only the length/width/height dimensions but also keep airflow in mind –where air can move freely around the unit so it can effectively take moisture from the air and deposit it into a container or drain line.

Features: Selecting an RV dehumidifier with the necessary features is important when trying to achieve optimal results. Typical features may include humidity sensor technology that allows for accurate humidity control; automatic shutoff; multiple fan speed settings; digital display; programmable timer, portable wheels on larger units; adjustable humidistat settings and automatic restart after power outage.

Cost: Budget is an important factor when considering a new appliance, so compare prices and features of different brands and models while keeping your needs in mind as they relate to both quality and performance of an RV dehumidifier. Consider if there are long term costs associated with purchasing a particular model by looking at factors such as replacement filters, energy efficiency ratings that may impact your electricity bill over time, ongoing maintenance requirements and repair expenses if needed down the road.

Size and Capacity

When it comes to choosing an RV dehumidifier, size and capacity are two of the most important factors to consider. The size of the dehumidifier is a factor in how much humid air it can process. Larger models are able to process larger amounts of air, making them especially efficient when running during long trips or in humid environments.

Dehumidifiers also come with water tanks that need to be emptied regularly, so it’s important to consider capacity when deciding which model is best for you. Larger tanks can hold more water and work for longer periods before needing to be emptied. Smaller dehumidifiers may run continuously if the tank isn’t large enough, creating an inadequate environment for both you and your passengers.

Additionally, it’s important to make sure that the unit will fit into your desired space — some models may be too big or too small depending on the size of your vehicle’s interior.

Energy Efficiency

Energy efficiency is an important factor to consider when choosing a dehumidifier for your RV. Dehumidifiers draw power from your battery, so you want to make sure that the unit you purchase uses little energy to run efficiently. Look for a dehumidifier that has the ENERGY STAR label, which indicates the product has been tested and certified as meeting the highest standard of energy efficiency.

The higher Energy Efficiency Ratio (EER) rating of the unit will determine how much power it consumes while delivering maximum efficiency. Make sure to note that while an oversized model may save on running costs, smaller models are more efficient and cost-effective in the long run.

Additionally, check out which method of refrigerant recharging is used by your dehumidifier – manual or automatic – as one may reduce time and effort during maintenance, saving you money in electricity bills over time.

Portability and Weight

When choosing an RV dehumidifier, it’s essential to think about portability. RV dehumidifiers can vary quite a lot in terms of weight, with some models weighing less than 10 lb and others up to 40 lb. For larger RVs, where the unit just sits in one place year-round, the heavier models are fine.

However, if you are planning on taking your dehumidifier on vacation or to different destinations, then the lighter-weight units make sense. Additionally, try to look for models with included carrying cases or handles that make them easier to carry and transport.

It’s also a good idea to consider size and footprint; although a large capacity model is necessary for substantial spaces, they may not fit into smaller areas as easily as smaller versions will.

III. How to Determine the Right Size of RV Dehumidifier for Your Needs

Choosing the right size dehumidifier depends on the amount of relative humidity levels and the size of your recreational vehicle. An RV dehumidifier with a larger capacity can cover a larger space in less time, while a smaller-capacity unit takes more time to reduce moisture levels in smaller spaces.

The amount of relative humidity inside an RV is affected by outside temperature, ventilation level, weather conditions, and other internal factors like number of occupants. To make sure your dehumidifier works properly, it’s best to measure the relative humidity level in your RV first and choose an appropriate-sized unit for your needs.

In general, you’ll want to choose a unit that is capable of removing at least 25 pints (4 gallons) of water from the air per day for every 1,000 cubic feet (28 m3) volume of living area in your RV. This should take care of most problems related to too much moisture in your recreational vehicle.

For example, if you have an RV with 30 ft x 10 ft side walls and 8 ft ceilings that equals 3000 cubic feet (85 m3). In this case, you’d want to select a dehumidifier that can remove at least 75 pints (11 gallons) per day from the air inside your RV.

On the other hand, if you have a small campervan or motorhome with 1000 cubic feet (28 m3) living space area then any mid-size portable unit can probably take care of most excess moisture problems. It is important however to get an accurate measurement prior to purchase so you know exactly how much water needs to be removed each day before selecting a suitable sized dehumidifier for your needs.

Factors to consider

There are a variety of features and specs to consider when looking for an RV dehumidifier, so it is important to understand your individual needs before making a purchase. Here are the main factors that you’ll want to keep in mind:

  1. Size: Finding the right size for your specific needs is one of the most important factors in choosing a dehumidifier. Generally speaking, larger units will be able to effectively dehumidify larger spaces, but this isn’t always the case. Make sure to pay attention to the manufacturer’s specifications so you choose one that best fits your needs.
  2. Capacity: Look closely at how much water can be extracted from the air in a given 24-hour period (measured in pints). This will depend on how humid or dry your climate is, as well as how large an area you need to cover – a bigger capacity rating usually means it can cover more space without needing to be “recharged” as often.
  3. Coverage Area & Air Flow Efficiency: Most RV dehumidifiers come with different coverage ratings which indicate how much space they can effectively dehumidify according to their design and power capabilities (measured in cubic feet per minute). Additionally, if your RV is prone to condensation problems, you’ll want something with higher air flow efficiency ratings because this translates into faster humidity removal times and more comfortable living conditions for occupants.
  4. Power & Recharging Time: Higher quality dehumidifiers may come with adjustable power settings and recharge times so operators can fine tune their climatic preferences accordingly (i.e., lower settings would use less energy but take longer for humidity removal). Some models may also have additional features such timer settings or remote access capabilities so users can control their usage more conveniently over time (great options for those travelling long distances).
  5. Noise Level & Mobility: If noise is currently an issue in your RV, look out for units specifically designed with low noise levels like ones utilizing vibrational dampening technology–this ensures minimal disturbance when operating and comfortable sleeping arrangements when turned off during nighttime hours! Additionally portability should also be taken into account – opting for something lightweight often makes regular cleaning and maintenance easier after prolonged periods of use!

Calculating the appropriate size

Before purchasing a dehumidifier for your RV, it is important to figure out the correct size for your needs. To determine the correct unit size, you will need to measure both the interior dimensions of your RV and the level of humidity present.

Ideally, you should purchase a dehumidifier with the capacity to remove 30-35 pints of moisture without having to be emptied or stopped, and it should be sized appropriately so that it runs continuously without interruption. A unit that is too small will only be able to reduce humidity levels temporarily before becoming quickly overwhelmed and switching itself off, while a unit that is too large will result in overusing unnecessary energy.

It is also important to take into account power limitations. The majority of RV owners rely on campground power sources (30/50 amp services) or 12V sources like solar panels or an inverter when camping off-grid. Determine what type and how much power you will have access to in order to select an appropriate sized unit; some models are designed with special features that allow them to run efficiently from smaller and less powerful power sources with minimal noise disruption when used inside your RV.

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Maintenance and Care of RV Dehumidifiers

Now that you know the types of dehumidifiers and the features to consider, it’s important to learn about the proper operation and maintenance for your unit. The first thing to remember is that all RV dehumidifiers require a power source, either plugging into an AC wall outlet or a 12V DC connection depending on the model. Your particular model may also require the use of an additional filter or water container, so make sure you are familiar with any product specific requirements.

It’s important that you follow the manufacturer’s guidelines when operating your dehumidifier. This includes running it at appropriate temperatures and making sure that any filters are changed regularly. In some cases, it can be helpful to power cycle (turn off/on) your unit at least once a month in order to clear accumulated dirt or dust from its internal components. Finally, make sure you defrost your unit per instructions if it is prone to excess frosting up during cold weather conditions.

Remember, proper care of your dehumidifier can help keep it functioning optimally and help ensure its long-term functionality. Additionally, depending on usage patterns such as lifting/moving of a unit, occasional cleaning may be required for certain models in order for them to continue functioning optimally over time.

Regular cleaning and maintenance

Regular cleaning and maintenance of a dehumidifier is an essential part of ensuring its optimal performance. Depending on the type of RV humidity control system you have, some maintenance tasks that should be done on a regular basis may include:

– Cleaning or replacing the filter regularly (depending on the model). This is to prevent dirt particles from clogging the system, which can reduce its efficiency. Additionally, it helps to keep your RV atmosphere clean and free from allergens.

– Check for water leakage and any damage to cords or power outlets. This ensures that your unit is functioning correctly and not creating an unsafe environment in your RV.

– Check for signs of corrosion, rust or other damage to the exterior housing. Regular inspections help to maintain the integrity of your dehumidifier system and ensure that it will continue to function optimally for many years to come.

Storage tips

Before finding the best RV dehumidifier for your needs, it is important to practice good storage habits. Some common precautionary measures include:

  • Keeping windows and vents closed when not in use
  • Covering furniture to prevent dust buildup
  • Cleaning air ducts regularly
  • Placing activated charcoal in areas prone to moisture accumulation
  • Vacuuming upholstery regularly
  • Adding weather stripping around doors and windows
  • Installing insulation in uninsulated areas of the RV, such as under the floor or walls

These practices can help reduce moisture and improve overall air quality. Additionally, if you are looking at an electronic dehumidifier unit, consider purchasing a model that has a built-in humidistat, which will automatically turn off when humidity levels reach an acceptable level.


With so many different RV dehumidifier models available on the market today, there is no single best choice for everyone. What matters most is how well the unit performs in the specific environment you find yourself in – make sure to take into account factors such as size, price, and power consumption before making any final decisions.

Choosing the right RV dehumidifier is essential for keeping your living space comfortable and condensation-free. With a little research into what features you need and which unit will work best for you, you can find a dehumidifier that meets your needs without breaking your budget or taking up too much of your space.

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How big of a dehumidifier do I need for my camper?

The size of the dehumidifier you need for your camper depends on the size of your camper and the level of humidity you want to remove. Generally, a small dehumidifier with a capacity of 20-30 pints per day should be sufficient for most campers.

How do I know what size dehumidifier I need?

To determine the size of the dehumidifier you need, you should consider the size of the room or space you want to dehumidify, the humidity level, and the ventilation. You can use a dehumidifier sizing calculator or consult with a professional to determine the appropriate size.

What is a good RV dehumidifier?

A good RV dehumidifier should be compact, energy-efficient, and have a sufficient capacity to remove moisture from the air in your RV. Some popular options include the Eva-Dry E-333, Pro Breeze Electric Mini Dehumidifier, and hOmeLabs Small Space Dehumidifier.

What should you look for when buying a dehumidifier?

When buying a dehumidifier, you should look for factors such as capacity, energy efficiency, noise level, portability, and additional features like automatic shutoff and digital controls.

Is a 10 Litre dehumidifier big enough?

A 10-liter dehumidifier can be big enough for a small room or space with moderate humidity. However, for larger areas or high humidity levels, you may need a larger capacity dehumidifier.

What happens if dehumidifier is too big?

If a dehumidifier is too big for the space, it can lead to excessive dryness and discomfort, and it may consume more energy than necessary. Additionally, the dehumidifier may turn on and off frequently, leading to wear and tear on the unit.

How powerful of a dehumidifier do I need?

The power of the dehumidifier you need depends on the size of the space you want to dehumidify and the humidity level. A dehumidifier with a capacity of 30-50 pints per day is usually sufficient for most homes and spaces.

Which type of dehumidifier is best?

The best type of dehumidifier depends on your needs and preferences. There are three main types of dehumidifiers: refrigerant, desiccant, and hybrid. Refrigerant dehumidifiers are the most common and effective, while desiccant dehumidifiers are more suitable for colder environments. Hybrid dehumidifiers combine both refrigerant and desiccant technologies.

What is the best percentage for a dehumidifier?

The best percentage for a dehumidifier depends on the level of humidity in the room or space you want to dehumidify. A comfortable indoor humidity level is generally between 30-50%, but for spaces with mold or mildew issues, a lower level of around 40-45% may be necessary.

What is the number 1 dehumidifier?

There is no definitive number 1 dehumidifier as it depends on individual needs and preferences. However, some highly rated options include the Frigidaire FFAD7033R1, hOmeLabs HME020031N, and Danby DDR050BJWDB.

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