Rooftop RV air conditioner installed on a travel trailer for summer cooling

Rooftop RV air conditioner installed on a travel trailer during a sunny summer trip

RV Rooftop Air Conditioners

InstaCool Series

Compare RV Rooftop AC

Find the right cooling-only rooftop air conditioner for your RV size, travel climate, and summer comfort needs.

Products
Model	InstaCool Pro 18K Black	InstaCool 150 II	InstaCool 135 II
Best For	Medium-to-large RVs / high summer cooling demand	Standard RV replacement / stronger airflow	Common RV AC replacement / compact cooling needs
Cooling Capacity	18,000 BTU	15,000 BTU	13,500 BTU
Cooling Type	Cooling Only	Cooling Only	Cooling Only
Noise Level	52 dB	59 dB	59 dB

Stay Cool with RV Rooftop Air Conditioners

When gearing up for summer travel, managing your cabin's internal temperature becomes a daily priority for many campers. Installing a modern cooling-only RV air conditioner is a practical way to help handle hot and humid weather on the road. Whether you are outfitting a newly purchased rig or planning a necessary RV AC replacement for an aging unit, a dedicated system can provide dependable cooling for your living space.

The Fogatti InstaCool series offers multiple cooling capacities—ranging from 13,500 BTU to 18,000 BTU—to better match your camper's specific size, layout, and insulation levels. Because these RV rooftop air conditioners are designed with a streamlined footprint, they are built to replace many existing factory units. Finding the proper rooftop RV AC for your travel style can help you manage the summer heat and enjoy your time at the campground.

Quiet Operation: Engineered to minimize operational noise, with models running between 52 dB and 59 dB, helping you maintain a more peaceful environment inside the cabin.
Standardized Fit: Built to accommodate the industry-standard 14.25" x 14.25" roof opening, which often aligns with existing cutouts to help facilitate the mounting process.
System Compatibility: Depending on the model, these units are configured to function with ducted or non-ducted air distribution setups, offering flexible options for different RV layouts while utilizing R32 refrigerant.

RV AC BTU Size Guide

How to Choose the Right BTU for Your RV

Selecting the proper RV AC BTU size involves more than just picking the highest rating available. The ideal capacity for your rig depends on specific physical and environmental factors. You need to evaluate your overall RV size, the quality of your factory insulation, the amount of direct window exposure, your typical travel climate, available campsite shade, and your existing electrical power. Matching the unit to these specific conditions helps maintain a comfortable cabin environment.

13,500 BTU

13,500 BTU for Common Replacement Needs

A 13,500 BTU RV air conditioner is a standard capacity designed to support lighter cooling demands. This size can be a practical choice for a straightforward RV air conditioner replacement in smaller or standard setups, or as a secondary unit for bedrooms in dual-AC configurations. Utilizing R32 refrigerant, it provides steady cooling support for trips in moderate climates. Operating at 59 dB, this model aligns with the standard noise levels expected from a traditional roof-mounted setup.

15,000 BTU

15,000 BTU for Stronger Airflow

If your travel schedule regularly takes you into warmer regions with higher humidity, upgrading to a 15,000 BTU RV air conditioner offers a step up in cooling output. This model pushes a stronger airflow rate of up to 470 CFM, which helps circulate cold air faster throughout the cabin space. It serves as a practical upgrade choice for standard-sized rigs where owners need an extra cooling reserve, while still operating at a familiar 59 dB noise level.

18,000 BTU

18,000 BTU for Higher Cooling Demand

Engineered specifically for medium-to-large RVs—including Class A motorhomes, Class C coaches, and large fifth wheels—an 18,000 BTU RV air conditioner is built for intense summer conditions. It is designed for cooling operation in outdoor temperatures up to 115°F. Despite its high output, this rooftop RV AC utilizes dual variable-speed fan motors while operating at 52 dB. You also gain a 4-speed airflow control system and convenient voice, app, remote, or ADB controls.

Before You Choose

Before making your final selection, assess your vehicle's actual conditions. Verify that your roof features the standard 14.25" x 14.25" opening, confirm whether your specific layout requires a ducted or non-ducted configuration, and ensure your available power supply can support your chosen model.

FAQ

What size RV rooftop air conditioner do I need?

The right size for your RV rooftop air conditioner depends on your vehicle's dimensions, insulation, window exposure, travel climate, shade, and available power. A 13,500 or 15,000 BTU unit can support many standard camper setups, while larger rigs may require an 18,000 BTU system. Review your available power supply and existing roof layout before choosing a capacity.

Is a 13,500 BTU RV air conditioner enough?

A 13,500 BTU RV air conditioner can provide steady cooling support for lighter cooling demand or moderate travel climates. It may be a practical choice for smaller or standard setups, or as a secondary bedroom unit in dual-AC configurations. If you frequently camp in hotter regions with limited shade, a higher-capacity model may be worth considering.

Is a 15,000 BTU RV air conditioner better than 13,500 BTU?

A 15,000 BTU RV air conditioner offers a step up in cooling output rather than simply being better for every RV. The InstaCool 150 II delivers airflow up to 470 CFM, which can help circulate cool air faster through the cabin. Your choice should depend on RV size, layout, insulation, climate, and available power.

When should I choose an 18,000 BTU RV air conditioner?

An 18,000 BTU RV air conditioner is designed for medium-to-large RVs, including Class A motorhomes, Class C coaches, and large fifth wheels. The InstaCool Pro 18K Black is built for higher summer cooling demand and designed for cooling operation in outdoor temperatures up to 115°F. It also operates at 52 dB with dual variable-speed fan motors.

Can I replace my old RV AC with a Fogatti rooftop unit?

A successful RV AC replacement starts with checking your existing roof opening, roof thickness, ceiling assembly, duct setup, power supply, and rooftop clearance. Fogatti InstaCool models are designed around the common 14.25" x 14.25" RV roof opening used by many rooftop AC setups. Confirm your vehicle's actual measurements before ordering.

What is the difference between ducted and non-ducted RV AC?

A ducted RV AC connects to your RV's built-in duct system to distribute cool air through multiple vents. A non-ducted unit delivers cool air directly from the ceiling assembly near the rooftop unit. Fogatti offers ducted and non-ducted options by model, so choose the version that matches your existing RV layout.

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