Why You Should Use a Dehumidifier in Your RV – Types & Benefits

A dehumidifier must be used in an RV to reduce the level of humidity and moisture present inside the RV. Humidity in an RV causes unpleasant odours and mildew. Moisture in the RV can also condense into water droplets, whose deposition on metal surfaces can cause rusting.

Recreational vehicles, or RVs, are vehicles designed to serve as living quarters.

They contain several electrical and electronic appliances which are portable and can be used anywhere and everywhere during travel.

Living in an RV requires constant travel to various places, ranging from arid climates to humid areas.

Within the RV, normal lifestyle demands activities like refrigeration, cooking, showering, etc. that adds to the humidity in the RV.

Sometimes, RVs, when not in use and in storage, can also be exposed continuously to humidity and moisture.

Prolonged exposure to moisture can give rise to unpleasant odours within the RV.

The vapor present in the RV can also condense into water droplets. The deposition of these water droplets on metal surfaces can also cause rust.

Humidity also causes organic substances like food, clothing, etc. to become moldy.

A quick video what causes humidity in an RV and why its an issue –

 

Therefore, to prevent the condensation of moisture and humid conditions within an RV, a dehumidifier may be used.

A dehumidifier is capable of reducing the level of humidity in its surroundings.

How does an RV Dehumidifier Work?

A dehumidifier works by sucking air into itself so as to remove moisture from it using a variety of techniques. Refrigeration dehumidifiers and air conditioners remove moisture from the air by lowering its temperature to condense out the moisture. An absorption dehumidifier absorbs moisture from the air before letting it out.

A dehumidifier is an electrical device that works by extracting or sucking the moisture out of air so as to reduce the level of humidity in the surrounding atmosphere.

Dehumidifiers are primarily of three types- refrigeration, air conditioning, and absorption dehumidifiers.

Refrigeration Dehumidifiers

These dehumidifiers are so called because they use a substance called a refrigerant.

The humid air is drawn into the dehumidifier. It is cooled using the refrigerant due to which the moisture condenses out. Air without the moisture is then sent out of the device.

The main components in a refrigerant dehumidifier are the compressor, condenser, evaporator, water tank, refrigerant tank, and a fan.

Common refrigerants used are freons, especially the R4A10 refrigerant.

The refrigerant is compressed into a high-pressure low-temperature liquid by the compressor. It is passed into the evaporator. The evaporator consists of a set of coils into which the cold refrigerant passes.

Meanwhile, the air from outside is drawn into the dehumidifier by the fan.

The moist air passes over the evaporator coils which are cold due to the refrigerant passing through them. The moisture of the air, due to contact with the cold surface of the evaporator, condenses into water droplets and is collected by the water tank.

Dehumidified air is thus let out by the dehumidifier.

The refrigerant, while cooling the moist air, itself absorbs heat from it and is heated. It is passed back into the compressor to lower its temperature. The entire process is repeated.

Absorption/ Desiccant Dehumidifiers

Absorption or desiccant dehumidifiers are so called because they use desiccants to dehumidify humid air.

A desiccant is a substance that absorbs moisture from the air in its vicinity. An example of a desiccant would be a silica gel.

An absorption dehumidifier works similar to a refrigerant dehumidifier. The humid air is sucked in by the device is passed over coils containing a desiccant. The desiccant removes moisture from the air.

Also, this dehumidifier does not lower temperature to dehumidify the air, hence these dehumidifiers can be used in low-temperature situations and areas.

Air conditioners as Dehumidifiers

Instead of buying a special device for dehumidifying air, a normal air conditioner with a dehumidifying option can be used, which works similar to a refrigeration dehumidifier.

Spray-type air conditioners can also be used for dehumidifying air.

These air conditioners employ sprayer that sprays chilled jets of water onto the air to chill the air below its dew point.

When this happens, the moisture condenses out faster than in a normal air conditioner.

The air is then heated before it is released outside so as to bring it up to the room temperature.

WHY USE A DEHUMIDIFIER IN AN RV

Benefits of using Dehumidifiers in RV

The benefit of using a dehumidifier in an RV is that it removes moisture from the air in the RV. Dehumidifiers remove water vapor from the air before it can condense and deposit on metal surfaces (to cause rusting) and organic substances (to cause molding).

Everyday activities like cooking, cleaning, showering, etc., involves the evaporation of water and the subsequent addition of more water vapour into the air.

When the same activities are performed within an RV, the air in its vicinity becomes more humid, especially when the RV is closed at all times.

In these cases, the moisture in the air can cause unpleasant, stuffy odours and mildew. Breathing this kind of air can also cause breathing problems and can trigger allergies.

The moisture in the air can also condense and cause molding, rusting and various other disagreeable effects.

So, the main benefit a dehumidifier offers is that it removes most of the moisture from the air, thus reducing its humidity.

Here are some videos of real people explaining why they are using dehumidifiers in their RV –

How to use a Dehumidifier in an RV?

The dehumidifier can be hooked up with the RV battery. They have a built-in hygrometer that can measure and display the relative humidity of air in its vicinity.

The dehumidifier is a bulky piece of equipment and has to be chosen wisely while keeping its size in mind. Most dehumidifiers can fit easily into the RV and can be hooked with the RV generator.

Most dehumidifiers are very energy efficient and require only 4 to 5 amperes of current for operation.

Dehumidifiers also have a built-in hygrometer that can measure the amount of humidity in the air. Hygrometer readings displaying the relative humidity of air can be seen through a digital display on the dehumidifier.

It is advisable to avoid switching the dehumidifier on overnight or for a period of more than 12 hours. Just like too much humidity is unpleasant, too little humidity in the air is also a problem.

Summary

A dehumidifier must be used in an RV to reduce the level of humidity and moisture present inside the RV.

Humidity in an RV causes unpleasant odours and mildew. Moisture in the RV can also condense into water droplets, whose deposition on metal surfaces can cause rusting.

A dehumidifier works by sucking air into itself so as to remove moisture from it using a variety of techniques.

Refrigeration dehumidifiers and air conditioners remove moisture from the air by lowering its temperature to condense out the moisture.

An absorption dehumidifier absorbs moisture from the air before letting it out.

The benefit of using a dehumidifier in an RV is that it removes moisture from the air in the RV. Dehumidifiers remove water vapour from the air before it can condense and deposit on metal surfaces (to cause rusting) and organic substances (to cause molding).

The dehumidifier can be hooked up with the RV battery. They have a built-in hygrometer that can measure and display the relative humidity of air in its vicinity.

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