Protect your investment and enhance your camping experience! High humidity levels in RVs can lead to mold, mildew, unpleasant odors, and costly interior damage. This comprehensive guide will help you choose, install, and maintain the perfect dehumidifier system for your camper or RV.
⚠️ The Hidden Threat in Your RV
Excess moisture in confined spaces like RVs creates the perfect breeding ground for mold and mildew, potentially causing thousands of dollars in damage to walls, furniture, and personal belongings. Don’t let humidity ruin your camping adventures!
Why Your RV Needs a Dehumidifier
🌬️ Improved Air Quality
Removes excess moisture that allows mold, mildew, and allergens to thrive, creating cleaner, healthier air for you and your family during your travels.
🛡️ Damage Prevention
Protects your RV investment by preventing wood warping, metal corrosion, upholstery damage, and costly structural issues caused by excess humidity.
😌 Enhanced Comfort
Eliminates that sticky, uncomfortable feeling in humid conditions, making your camping experience more enjoyable and relaxing.
🚫 Odor Elimination
Prevents musty smells caused by moisture buildup, keeping your RV interior fresh and welcoming for guests and family.
Choosing the Right Dehumidifier for Your RV
Capacity Guide by RV Size
Medium RVs
30-50 pints/day
Class C, Medium Travel Trailers
Large RVs
50+ pints/day
Class A, Large Fifth Wheels
Key Factors to Consider
| Factor | Small RVs | Medium RVs | Large RVs |
|---|---|---|---|
| Space Requirements | Compact, portable units | Medium-sized with mobility | High-capacity, may be stationary |
| Power Consumption | 200-400 watts | 400-600 watts | 500-800 watts |
| Noise Levels | Under 40 dB (critical) | Under 45 dB | Under 50 dB acceptable |
| Tank Capacity | 1-2 gallons | 2-3 gallons | 3+ gallons or continuous drain |
| Price Range | $100-$300 | $200-$500 | $300-$800 |
Top RV Dehumidifier Recommendations
Pro Breeze Electric Mini Dehumidifier
Capacity: 18 oz/day
Power: Low consumption
Best for: Small to medium RVs
Features: Ultra-quiet operation, compact design, auto shut-off
Price Range: $80-$120
hOmeLabs Small Dehumidifier
Coverage: Up to 150 sq ft
Features: Auto-off, water level indicator, thermo-electric cooling
Best for: Compact spaces, budget-conscious buyers
Price Range: $90-$140
Eva-Dry E-333 Renewable Mini
Type: Renewable silica gel
Power: No electricity required
Duration: 30 days before renewal
Best for: Energy-conscious users, boondocking
Price Range: $60-$90
Vremi 22 Pint Energy Star
Capacity: 22 pints/day
Features: Energy Star certified, continuous drain, quiet operation
Best for: Large RVs, high humidity areas
Price Range: $200-$280
💡 Pro Tips for Selection
- Consider models with continuous drainage options for extended trips
- Look for Energy Star certification to minimize power consumption
- Choose units with auto-restart features for power outage recovery
- Prioritize quiet operation (under 45 dB) for comfortable living
Installation and Optimal Placement
Best Placement Strategies
- Central Location: Position in the center of your RV for maximum air circulation
- Clearance Space: Maintain 6-12 inches from walls and furniture
- Level Surface: Ensure the unit sits on a stable, level surface
- Power Access: Place near reliable electrical outlets
- Drainage Consideration: Plan for water tank emptying or continuous drainage
⚠️ Placement Mistakes to Avoid
- Placing too close to walls or furniture (blocks airflow)
- Installing in areas with poor ventilation
- Positioning where it can be easily knocked over
- Ignoring noise proximity to sleeping areas
Maintenance Guide
Regular Maintenance Schedule
Daily Tasks
- Check water tank level
- Monitor humidity readings
- Ensure proper operation
Weekly Tasks
- Empty and clean water tank
- Wipe exterior surfaces
- Check air intake/output
Monthly Tasks
- Clean or replace filters
- Deep clean coils
- Inspect drainage system
Seasonal Tasks
- Calibrate humidistat
- Professional inspection
- Storage preparation
Cleaning Procedures
| Component | Frequency | Method | Important Notes |
|---|---|---|---|
| Water Tank | Weekly | Warm soapy water, rinse thoroughly | Prevent bacterial growth |
| Air Filter | 2-3 weeks | Gentle brush or rinse with water | Dry completely before reinstalling |
| Coils | Monthly | Soft brush or low-power vacuum | Be gentle to avoid damage |
| Exterior | Weekly | Damp cloth, mild cleaner | Unplug unit before cleaning |
Common Mistakes to Avoid
Critical Errors That Reduce Efficiency
- Neglecting routine maintenance: Leads to reduced performance and early failure
- Improper sizing: Too small won’t control moisture; too large wastes energy
- Poor placement: Blocking airflow reduces effectiveness by up to 40%
- Ignoring humidity levels: Over-dehumidifying can cause health issues and material damage
- Forgetting to empty tanks: Full tanks shut down the unit automatically
Troubleshooting Common Issues
| Problem | Possible Causes | Solutions |
|---|---|---|
| Unit not removing moisture | Dirty filter, blocked coils, wrong size | Clean/replace filter, clean coils, verify capacity |
| Excessive noise | Loose parts, poor placement, worn components | Tighten connections, relocate unit, service/replace |
| High energy consumption | Oversized unit, dirty components, leaks | Right-size unit, clean regularly, seal air leaks |
| Frequent cycling | Wrong humidity setting, temperature fluctuations | Adjust settings, improve insulation |
Energy Efficiency Tips
🔋 Maximize Efficiency & Minimize Power Draw
- Set optimal humidity: Maintain 45-55% relative humidity
- Use timer functions: Run during peak humidity times
- Improve ventilation: Use exhaust fans to remove moisture at source
- Seal air leaks: Prevent humid outside air infiltration
- Regular maintenance: Clean units operate 15-20% more efficiently
References
-
Auburn University – Guideline for Renovation of Recreational Vehicles
This thesis discusses the use of dehumidifiers in Class B campers to improve indoor air quality.
Link to source -
University of Iowa – Move-In Guidelines
Mentions the use of dehumidifiers as part of essential equipment for maintaining air quality in enclosed spaces like trailers or campers.
Link to source -
Northern Michigan University – Portable Dehumidifiers
Highlights the benefits of small portable dehumidifiers for removing excess moisture in confined spaces.
Link to source
Frequently Asked Questions (FAQ)
Which dehumidifier is recommended for use in a camper?
The ideal dehumidifier for camper is one that has a smaller build and produces less noise. It helps to get a portable dehumidifier that has additional functions such as an automatic turn off and a convenience timer. Most of the owners of RV are interested in getting a dehumidifier that is drainable into the grey tank so they don’t have to always pour out the water.
Can you explain to me how a dehumidifier for bathroom and bedroom operates?
To explain the working principle of a dehumidifier for bathroom and bedroom, it is the removal of moisture in the air done so as to eliminate any chance of moisture condensation or water damage. These appliances are usually easy on the ears and equipped with led lights which makes them suitable for these spaces as they do not produce a lot of noise.
Is it possible to use a desiccant dehumidifier in an RV?
It is possible to use a desiccant dehumidifier in an RV. Such devices work well in limited areas and are usually simple, and easily movable. They remove wetness in the atmosphere which makes them appropriate when the RV needs supplementary help in keeping the interior humidity appropriate.
Why would one want to have a dehumidifier with timer sleep mode that is quiet?
If you use a quiet dehumidifier, which also has a timer in sleep mode, then you will reduce noise pollution in your bedroom or even a RV. Setting the device on a timer would enable you to regulate it and make it turn off automatically hence conserving energy to an acceptable level without disturbing the occupants during the night to operate the device.
On average, how many square feet does a dehumidifier cover?
It can be anywhere from about 500 sq. ft. up to 2000 sq. ft. depending on the type of dehumidifier. It is advisable to first determine the room you are going to use the dehumidifier before buying one, be it a bathroom, bedroom or a RV.
Portable small dehumidifiers are available for use in bathrooms, isn’t it?
Yes, it’s true that there are a lot of small ready-to-operate dehumidifiers that can be used in the bathroom. They are generally compact in design and energy efficient with most of them having moisture absorbing pads to keep the bathroom dry without mildew or mold problems.
In the case that I need a dehumidifier for a camper, what qualities it should have?
Moisture control in campers can be a challenge, especially if you do not have access to shore power and have to depend on a generator. This is why it so essential to buy de-humidifiers that have a 95 ounce tank, can be used easily (quiet) in small spaces and and lastly can be set up inconveniently to drain out of gray tanks. All these features make a dehumidifier for camper moisture control both excellent and easy.
What are the main considerations for choosing a dehumidifier for the bedroom and bathroom?
Such dehumidifiers are easy to install in a bedroom and bathroom but need to include considerations such as room size (sq.ft), the noise level, and the features such as a timer or an auto shut-off. Advantages of air conditioning units manufactured for smaller spaces are that they do not have to be very large and therefore are more efficient.
Are moisture absorbers limited to certain functions within small spaces?
Certainly, in the humidifier control section, moisture absorbers assist in controlling room humidity d working effectively against for example dampening or moulding problems. In smaller enclosures such as closets, bathrooms, and RVs, for instance, the use of a dehumidifier would complement a moister absorbent and increase the use effectiveness of the humidity regulation apparatus.
