Hitting the open road in an RV is the ultimate symbol of freedom. Exploring new terrains, taking in fresh mountain air, and experiencing the beauty of nature – RVing allows you to rediscover the joy of travel. But as temperatures start climbing, one drawback puts a damper on all your adventures – a hot, stuffy RV interior.Trying to sleep through muggy nights with just an open window for relief quickly loses its appeal. Although most RVs come equipped with a roof-mounted air conditioner, they aren’t always practical or sufficient, especially for larger motorhomes. This leaves many RVers searching for a way to stay cool on their travels.
In this blog, we’ll cover the benefits of portable ACs for RVs, what to look for when purchasing a unit, installation tips, and how to optimize their use.
How Portable ACs Work
Like traditional window units, portable air conditioners have major components like a compressor, evaporator coil, condenser coil, and refrigerant gas sealed in a single casing. This allows self-contained cooling without ductwork. But what makes them different is their mobility and versatility. Here are the key operating principles:
Shared intake and outlet
A single vent draws air from the room through the unit then exhausts back into the room. The warm air exhaust usually vents through a flexible tube directed outside.
Condensation handling
Moisture condensed from the air during cooling gets collected in a tank or drained through a hose.
Compact components
Fitting all systems into one freestanding unit provides easy mobility around an RV.
Temperature control
A digital panel lets you set your desired temp and adjust fan speeds. Newer models include remote controls.
Electric power
Standard household power outlets provide the electricity portable units need to run. Some can also operate on RV batteries.
Installation flexibility
Window, wall or ceiling mounting kits allow both semi-permanent installations or temporary use in different rooms.
Smaller capacities
Portable units are typically 5,000 to 14,000 BTU while roof ACs go up to 15,000 or 30,000 BTU. Great for supplemental cooling.
Understanding how self-contained portable ACs leverage the same technology as window units provides insight into how they can effectively cool your RV space. Their flexibility and mobility set them apart from fixed roof air conditioners.
Pros of Portable ACs for RVs
Portable air conditioners offer several advantages over traditional roof AC units.
Targeted cooling
Portables can be moved and adjusted to focus cooling right where you need it, rather than the entire RV.
Affordable cost
Parts and DIY installation are much cheaper compared to installing or replacing central roof ACs.
Easier maintenance
Accessing filters and clearing debris is simpler with freestanding units versus roof ACs.
No ductwork needed
Roof units require complex ventilation ducts while portables use a basic window exhaust kit.
Quieter performance
Portable ACs generate less disruptive noise compared to the fan and compressor sounds from roof ACs.
Less roof impact
Avoiding cutouts in your RV’s roof to install large AC units helps maintain roof integrity.
Usable for multiple structures
Portable units can be shifted between your RV, shed, cabin, patio, etc., for versatile cooling.
Cooling while driving
Running your RV’s roof AC is impossible while driving down the road. Portable ACs can operate anytime.
Flexible power options
Can run on Shoreline AC current at campsites or on RV batteries when boondocking unlike roof ACs.
Better humidity control
Some portables feature built-in dehumidifier modes to remove excess moisture for added comfort.
Heating and fan capabilities
Select portable ACs can also provide area heating or fan-only airflow in addition to cooling.
For supplemental or temporary cooling, portable ACs offer RV owners targeted temperature relief with concise installation, simpler maintenance, and flexible operation compared to permanent roof ACs.
Cons of Portable ACs for RVs
However, there are a few potential drawbacks to consider with portable ACs for RV use:
Added energy drain
Running an additional AC pulls more current and can mean faster battery depletion off-grid. Fuel or generator time is consumed at a faster rate.
Window space limitation
Many portables require mounting partly in a window section so the exhaust hose can vent outside. This restricts access and views from that window while cooling.
Exhaust hose aesthetics
The exhaust hose dangling out a window is often considered unsightly. Some parks or campsites may restrict window installations.
Minimal insulation impact
Roof ACs help insulate an RV when not in use. Portables provide no insulation benefits for your rig.
Floor space usage
Finding adequate floor area for a portable AC can be difficult with limited RV square footage.
Cooling capacity
For large fifth wheels or motorhomes, an individual portable unit may struggle to effectively cool the entire interior.
Air sealing challenges
Getting an airtight window seal around a portable AC’s exhaust hose allows hot outdoor air and pests to potentially enter.
Exterior moisture risks
When cooling humid interiors, the vented exhaust can gradually soak exterior walls or floors if improperly drained.
Rattling noise while driving
Unless properly secured, portable unit components may shake and make distracting noises when your RV is moving.
While portable ACs serve an important supplemental cooling role in hot weather, they also come with some installation and operation concerns worth factoring into your cooling plans.
Key Purchase Considerations
If you determine a portable AC could help meet your RV cooling needs, keep these key factors in mind while selecting a unit:
Cooling capacity
Match BTU rating to your RV’s size, buying bigger units (10,000+ BTU) for large fifth wheels or motorhomes.
Power source
Ensure electrical cord length or outlet plug compatibility for your particular RV’s power outlets.
Power draw
Carefully calculate the added electrical load of the portable AC to your RV’s circuits and generator capacity.
Energy efficiency
Seek newer Energy Star rated models with eco-friendly refrigerants and power saving modes to minimize runtime costs.
Size and weight
Measure doorways and paths to ensure the portable AC can fit through your RV’s tight spaces and flooring can support it when parked.
Noise level
Sleeping near a loud AC is difficult, so check decibel ratings and select models touting “whisper-quiet” operation.
Added features
Assess whether a dehumidifier function, heating capability, programmable timer, remote control, etc. are worthwhile add-ons for your needs.
Mobility
If moving the unit frequently, ensure it has good portability with built-in casters and handles.
Installation kit
Choose a model that includes window venting kits, panels, or support brackets optimized for RVs to allow quick mounting.
Price
Set an overall budget while balancing performance, efficiency, useful features, and warranty coverage of the unit.
Carefully evaluating portable ACs using these criteria allows you to select the model that integrates smoothly into your RV for many summers of supplemental cooling.
Optimizing for Off-Grid Use
To maximize efficient use of portable ACs while RVing off-grid, consider these tips:
Assess electrical load
Estimate the number of hours your RV’s batteries can support the AC’s power draw along with other devices.
Use a smaller capacity unit
Opt for a 5,000-7,000 BTU portable to cool a single room using minimal electricity.
Limit AC runtime
Only activate the AC during peak heat. Rely on fans and open windows during cooler parts of the day.
Maintain adequate ventilation
Keep intake and exhaust vents unobstructed so the AC doesn’t work harder than necessary.
Adjust temperature setting
Choose the highest tolerable temp (78+ degrees) on your AC to conserve battery reserves.
Use eco mode option
Most portables have an energy saving mode that optimizes compressor and fan usage to reduce power consumption.
Monitor unit for frost buildup
Excess frost formation on the coils indicates lower efficiency and time for maintenance.
Clean air filter regularly
Clogged filters cause the portable AC to work harder and consume extra power.
Close windows and vents
While cooling, keep the RV’s windows, skylights, and roof vents closed to contain the cold air.
Use a portable solar panel
Supplement with a portable solar panel to help recharge batteries and offset AC electrical demand.
Smart usage and optimization habits allow portable ACs to provide much-needed temporary cooling without depleting your RV’s batteries or generator fuel supply too rapidly while off-grid.
Table of comparison
Here’s a table comparing the top 10 Portable Air Conditioners for RVs.
| Brand & Model | Cooling Capacity (BTU) | Energy Efficiency | Noise Level (dB) |
|---|---|---|---|
| CoolBreeze Model 1 | 12,000 | Energy Star Rated | 50 |
| ArcticChill Model 2 | 8,000 | Eco-Friendly | 55 |
| ChillMaster Model 3 | 10,000 | Whisper-Quiet | 48 |
| CoolWave Model 4 | 14,000 | Energy Saver Mode | 52 |
| BreezyCool Model 5 | 7,000 | High Efficiency | 53 |
| AeroFrost Model 6 | 9,000 | Remote Control | 51 |
| FrostBite Model 7 | 11,000 | Dehumidifier | 49 |
| HeatMaster Model 8 | 13,000 | Heating Function | 54 |
| ChillZone Model 9 | 6,000 | Programmable Timer | 47 |
| SummitCool Model 10 | 12,500 | Compact Design | 50 |
Please note that these specifications are fictional and for illustrative purposes only. Be sure to research and choose the right portable air conditioner that meets your RV’s specific needs.
Conclusion
When summer heat waves hit, getting a good night’s rest in your recreational vehicle often requires supplemental cooling beyond your factory roof air conditioner. Portable ACs provide targeted temperature relief right where you need it. Units ranging from 5,000 to 14,000 BTU capacities can be mounted in RV windows to exhaust the hot air outside.
Key benefits like affordability, easier maintenance, and flexible operation make portable ACs a popular cooling option for RVers looking to stay comfortable on their travels. However, the added energy demand, window space usage, exterior moisture risks, and cooling capacity limitations should also be carefully weighed. Purchasing the properly sized portable AC model for your RV’s layout and carefully installing for optimized airflow are critical first steps.
While portable air conditioners have some downsides, they provide a cost-effective, versatile supplemental cooling solution perfect for RVs. Utilizing battery power wisely while off-grid camping and taking steps to optimize the portable AC’s efficiency allows you to reap the benefits of these units. With the right portable air conditioner properly set up in your RV, you can venture anywhere this summer while avoiding sweltering temperatures along the way. Stay cool and happy camping!