Suffering through sweltering afternoons in a poorly insulated motorhome is a miserable reality you can immediately fix. Modern dual-hose portable air conditioners can drop your cabin temperature by 15 degrees in under thirty minutes without relying on your deafening rooftop unit.
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| Product | Whynter ARC-14S 14,000 BTU Dual Hose Air Conditioner | EcoFlow Wave 2 Portable Air Conditioner | Midea Duo 14,000 BTU Smart Portable AC | BLACK+DECKER 8,000 BTU Portable Air Conditioner | BougeRV Portable Air Conditioner PC35 |
| Weight lbs | 73.0 lbs | 32.0 lbs | 72.8 lbs | 46.2 lbs | 34.2 lbs |
| Cooling btu | 14,000 BTU | 5,100 BTU | 14,000 BTU | 8,000 BTU | 3,500 BTU |
| Noise level | 56 dB | 44 dB | 42 dB | 50 dB | 55 dB |
| Exhaust type | Dual Hose | Dual Hose | Hose-in-Hose | Single Hose | Dual Hose |
| Buy Now | Check Price → | Check Price → | Check Price → | Check Price → | Check Price → |
Quick Tips
Wrap your plastic exhaust hose in reflective thermal insulation tape to prevent heat from radiating back into your rig.
Place the portable unit on a thick rubber mat to completely absorb compressor vibrations before they hit your floorboards.
Route your condensation drain hose directly into your motorhome's shower pan to avoid emptying internal water buckets.
Keep your primary rooftop AC fan running on low just to help circulate the freezing air produced by your portable unit.
Whynter ARC-14S 14,000 BTU Dual Hose Air Conditioner
Unrivaled cooling power for large rigs
Whynter ARC-14S 14,000 BTU Dual Hose Air Conditioner
Unrivaled cooling power for large rigs
What we like
- Dual-hose system prevents negative air pressure
- Massive 14,000 BTU capacity cools rigs rapidly
- Auto-drain technology exhausts most condensation
- Carbon air filter neutralizes musty RV odors
What we don't
- Incredibly heavy unit is difficult to move around
- Requires a massive amount of valuable floor space
- Pulls too much power for most solar setups
This dual-hose powerhouse completely solves uneven motorhome cooling by rapidly circulating massive amounts of air without creating negative pressure. It quickly drops the temperature in sweltering rear bedrooms while running significantly quieter than your factory roof unit.
You will love this if you have a larger Class A or Class C rig with ample floor space for a heavy machine. Skip this if you drive a cramped Class B van where every square inch of space is precious.
EcoFlow Wave 2 Portable Air Conditioner
The ultimate off-grid cooling machine
EcoFlow Wave 2 Portable Air Conditioner
The ultimate off-grid cooling machine
What we like
- Incredibly low power draw for solar setups
- Functions as a heater during cold nights
- No permanent installation or window kit required
- Exceptionally quiet sleep mode operation
What we don't
- Premium price tag requires a real investment
- Add-on battery must be purchased separately
- Not powerful enough for massive Class A coaches
The EcoFlow Wave 2 fundamentally changes off-grid RVing by delivering actual air conditioning without dragging down a noisy gas generator. It pulls a highly manageable amount of watts, letting you sleep comfortably in remote wilderness locations off your solar setup.
You will appreciate this model if you frequently boondock on public lands far away from electrical pedestals. Avoid this premium system if you strictly camp at RV parks and want maximum cooling for the lowest possible price.
Midea Duo 14,000 BTU Smart Portable AC
Whisper-quiet efficiency
Midea Duo 14,000 BTU Smart Portable AC
Whisper-quiet efficiency
What we like
- Innovative hose-in-hose design saves floor space
- Inverter technology makes it unbelievably quiet
- Smart app controls work perfectly from your phone
- Pushes air twice as far as traditional units
What we don't
- Window bracket requires heavy modification for RVs
- Extremely heavy footprint is hard to lift
- Premium price compared to basic single-hose models
The innovative hose-in-hose design solves the dreaded negative pressure issue that plagues single-hose units inside sealed motorhomes. It operates at an incredibly quiet 42 decibels, allowing you to sleep peacefully while it aggressively cools spaces up to 450 square feet.
Grab this if you want the efficiency of a dual-hose system packed into a much sleeker, space-saving vertical footprint. Pass on this unit if you constantly move your AC outside, as its heavy build makes it cumbersome to lift.
BLACK+DECKER 8,000 BTU Portable Air Conditioner
Unbeatable cooling on a budget
BLACK+DECKER 8,000 BTU Portable Air Conditioner
Unbeatable cooling on a budget
What we like
- Incredibly affordable compared to premium models
- Built-in dehumidifier removes sticky moisture
- Remote control allows easy bed-side adjustments
- Lighter weight makes it relatively easy to store
What we don't
- Single-hose design is less efficient in large rigs
- Requires a dedicated 115V shore power connection
- Exhaust hose plastic is somewhat flimsy
When you have a reliable electrical hookup and simply need to blast cold air throughout a hot motorhome, this compact unit delivers immediately. It requires standard 115-volt power but pushes out enough chilled air to rapidly cool your rear living space.
You need this if your main goal is surviving a sweltering weekend at an established RV park on a strict budget. Look elsewhere if you camp exclusively in remote sites, as this machine will immediately overwhelm small inverters.
BougeRV Portable Air Conditioner PC35
The perfect middle ground
BougeRV Portable Air Conditioner PC35
The perfect middle ground
What we like
- Drops interior cabin temperatures rapidly
- Ergonomic handle makes moving it effortless
- Compact footprint fits perfectly between RV seats
- Excellent price-to-performance ratio
What we don't
- Does not include an integrated battery system
- Slightly louder than premium off-grid compressors
- Not rated to cool massive 40-foot coaches
This unit bridges the gap between massive household ACs and expensive off-grid models, offering highly portable cooling for smaller RVs. With intelligent controls and an ergonomic handle, it moves effortlessly from your front cab to the rear sleeping quarters.
This hits the sweet spot for weekend warriors seeking affordable cooling for mid-sized Class C rigs or camper vans. Skip it if you want an all-in-one battery system, as this model strictly requires an external power station.
What to Look For
Look at the BTU rating first to understand the raw cooling power of your chosen unit. A higher BTU means faster cooling, but it also draws significantly more electricity from your system.
Always measure your available floor space before committing to a heavy, freestanding air conditioner. Even compact units require several inches of clearance around the exhaust hose to function without bending the plastic tubing.
Examine the exact power draw carefully if you plan to rely on solar panels or portable power stations. Traditional household units will quickly overwhelm small inverters and leave you completely stranded without any power.
Who Should Skip This
You should skip portable air conditioners if you drive a cramped Class B camper van with zero extra floor space. A high-quality 12V roof fan is often a better solution for micro-rigs.
Those who exclusively camp in freezing winter conditions obviously don't need dedicated cooling equipment.
What the Community Actually Uses
On r/GoRVing, veterans constantly debate the merits of noisy rooftop units versus portable floor models for hot weather. The consensus usually favors heavy-duty dual-hose portable ACs for cooling down rear bedrooms where roof units fail to reach.
Quick Picks — In Case You've Already Decided
Whynter ARC-14S 14,000 BTU Dual Hose Air Conditioner
Check Price on AmazonFrequently Asked Questions
Do I need a single or dual hose AC for a motorhome?
You should absolutely prioritize dual-hose models for a motorhome. Single-hose units create negative air pressure, which actively sucks hot outdoor air into your rig through window seals and gaps. Dual-hose units cool significantly faster and are much more efficient in sealed spaces.
Can I run a portable AC off my motorhome's battery bank?
You can only run an AC off batteries if you have a massive lithium bank and a high-capacity inverter. Specialized low-draw models are designed specifically for this off-grid scenario. Standard household units will drain most factory RV batteries in less than an hour.
Where do I vent the exhaust hose in an RV?
You must vent the exhaust hose outside, typically through an emergency exit window using a specialized or DIY plexiglass sealing kit. Venting inside the motorhome will rapidly heat up the room instead of cooling it. Ensure the vent is angled downward to prevent rain intrusion.
Will a portable AC replace my rooftop unit?
A high-BTU portable unit can easily replace a broken rooftop AC, especially in smaller Class C motorhomes. Many RVers prefer them because they operate much quieter than rooftop compressors that shake the entire ceiling. However, they do consume valuable interior floor space.
Do portable ACs also dehumidify the RV?
Yes, the cooling process naturally pulls moisture out of the air, which is a massive benefit for muggy motorhomes. Many models have a dedicated dehumidifier mode to aggressively dry out the interior. You will need to route a continuous drain hose to avoid manually emptying the tank.
Buying Guide
To keep your motorhome perfectly chilled, you must evaluate your exact power setup and floor plan. Shore power lets you easily run massive dual-hose units continuously.
If you boondock frequently, prioritize highly efficient low-draw models to avoid draining your expensive lithium battery bank during a single scorching hot summer afternoon.