INSTACOOL PRO 18K
18K Cooling-Only RV Air Conditioner
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InstaCool Pro 18K is a cooling-only rooftop air conditioner built for medium-to-large RVs. It supports ducted or non-ducted ceiling layouts and combines four fan speeds with app, voice, remote and ADB control.
View all features ↓Fit and installation
- Roof opening
- 14.25 × 14.25 in
- Ceiling layout
- Ducted or non-ducted
- Power supply
- 115V AC / 12V DC / 60Hz
- Rated input
- 1,550W
- Main unit
- 33.3 × 27.9 × 14.2 in
- ADB
- 21 × 17.7 × 1.8 in
Designed for standard RV rooftop installations. Select the ceiling assembly that matches your duct layout.
What’s included
- ✓Rooftop unitInstaCool Pro 18K cooling system
- ✓Ceiling assemblyFor the selected ducted or non-ducted variant
- ✓ControlsWireless remote controller
- ✓Installation hardwareTemplate, junction box, sealing strips and mounting parts
- ✓Product documentationInstallation and operation manual
Package contents can vary by selected configuration.
Specifications
- Cooling capacity
- 18,000 BTU
- Heating
- Cooling only
- Cooling operating range
- Up to 115°F
- Fan speeds
- 4
- Indoor airflow
- 271–374 CFM
- Power input
- 1,550W
- Refrigerant
- R32
Quick answers
Does this model provide heat?
InstaCool Pro 18K is purpose-built for cooling and pairs with the RV furnace for cold-weather heat.
Can I use it with an existing duct system?
Yes, when the ducted variant is selected and the RV duct layout is compatible.
Can it replace a 13,500 BTU rooftop AC?
Often yes, provided the roof opening, support and electrical system are compatible.
Add hot-water and cold-weather systems selected for the RV opening, ducts and utilities.
Add stable on-demand hot water with a built-in mixing tank and matching RV door package.
View door and installation fitAdd higher-output propane heat for colder conditions with a furnace matched to the existing cabinet and duct system.
Check furnace fit and options
Serious summer cooling for larger RVs
InstaCool Pro 18K is built for medium-to-large RVs that need stronger recovery in severe heat and already rely on a furnace for winter. Four fan speeds and 271–374 CFM indoor airflow let you cool hard first, then reduce airflow after the cabin settles.

More output without unused rooftop heat
This model is designed for owners who want the strongest cooling-only option in the range and prefer to keep heating with a propane furnace.

Recover larger cabins after sun exposure
Higher capacity matters most during the first part of the cooldown, when the roof, walls and furniture are all releasing stored heat.

Cool hard, then reduce airflow
Indoor airflow from 271 to 374 CFM gives the system more flexibility than a single fixed-speed fan.

Keep winter heating with the furnace
Choose focused 18K cooling when the RV furnace already handles cold-weather heat.

Control cooling from four interfaces
Use the app, voice control, handheld remote or the ceiling assembly to adjust cooling without relying on one interface.
18K cooling for hot routes and larger RV cabins
The product is a strong fit for hot routes, larger cabins and owners who already trust the existing furnace for cold weather.
The 18K platform is built to recover larger interiors and higher heat loads.
Keep the rooftop system focused on high-output cooling while the RV furnace handles winter heat.
The Pro Max adds a 16K heat pump while keeping 18K cooling.
Match the ADB to the ceiling
Choose the ducted or non-ducted ceiling configuration that matches the RV and its 115V circuit.

Built for common RV rooftop replacements.
A standard 14.25-inch opening, 115V supply and a choice of ducted or non-ducted ceiling kits simplify replacement planning.
- Roof opening
- 14.25 × 14.25 in
- Rooftop size
- 33.3 × 27.9 × 14.2 in
- Rooftop weight
- 80.5 lb
- Ceiling layout
- Ducted or non-ducted
- Rated current
- 13A
Choose by output, heat and sound
All three models solve a different travel problem. Choose from the climate and ceiling layout you actually have.

InstaCool Pro 18K
For medium-to-large RVs in serious summer heat, with no rooftop heating.
- Cooling
- 18K BTU
- Heating
- None
- Ceiling
- Ducted / non-ducted

InstaCool Ultra
For non-ducted RVs where quieter nights and mild-weather heat matter.
- Cooling
- 16K BTU
- Heating
- 12.5K heat pump
- Low mode
- Below 43 dB

InstaCool Pro Max
For larger rigs needing 18K cooling and 16K heat-pump heating.
- Cooling
- 18K BTU
- Heating
- 16K heat pump
- Ceiling
- Ducted / non-ducted
See 18K cooling and rooftop installation
See measured cooling, replacement work and power planning for the 18K cooling platform.
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See how an 18K rooftop system is tested
A detailed look at measured cooling behavior and operating performance.
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See the InstaCool Pro 18K in real-world use
A closer look at the rooftop unit, setup and day-to-day cooling experience.
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See what a replacement installation involves
Roof preparation, lifting, sealing, ceiling work and startup checks.
18K cooling for summer-focused RV travel
These answers cover heating, capacity, ceiling fit and electrical planning.
How does this cooling-only model handle winter travel?
InstaCool Pro 18K is purpose-built for cooling and pairs with the RV’s existing furnace for cold-weather heat.
Can it replace a ducted RV air conditioner?
Yes. Select the ducted configuration for an existing ceiling-duct system, or the non-ducted configuration for direct ceiling airflow.
Why choose 18K instead of 15K?
The 18K platform adds cooling recovery for larger cabins, stronger sun exposure and hotter summer routes.
Can it operate in very hot weather?
Yes. It is designed for cooling operation in outdoor temperatures up to 115°F when installed to specification.
What installation does it support?
It uses a 14.25 × 14.25-inch roof opening, 115V power and either a ducted or non-ducted ceiling configuration.
Ready for focused 18K summer cooling?
Choose the matching ceiling configuration above. The installation guide is available for final fit planning.
This product is rated 5.0 of 5.0 stars.
It has received 16 reviews.




