A camper trailer interior featuring a bed and couch, with a Fogatti air conditioner mounted on the wall.

18,000 BTU RV Air Conditioner
fogatti air conditioner
Powerful Cooling
fogatti air conditioner
Heat Pump
fogatti air conditioner
PTC Heating
A camper featuring a black roof and a black fogatti air conditioning unit positioned on top, surrounded by open space.
18000BTU Series
Side view of an RV featuring a mounted portable water heater for convenient shower experience.
Accessories
0

This collection is empty

Continue shopping
18K Buying Guide

One 18,000 BTU platform. Three ways to control your RV climate.

Every 18K model gives larger RVs more cooling headroom. The real choice is simple: cooling only, light electric warmth, or heat-pump comfort for more seasons.

1

Summer heat only?

Choose the 18K cooling-only model for strong summer performance.

2

Need light electric warmth?

Choose the PTC model to take the chill off cool mornings.

3

Want the widest comfort range?

Choose Pro Max with heat pump for the most complete setup.

Fogatti 18K AC comparison

All three are built around 18,000 BTU cooling. The key difference is heating capability.

Model Cooling Heating Type Heating Capacity Controls Noise Best For
InstaCool Pro 18K 18,000 BTU Cooling Only Not available App / Voice / Remote / ADB 52 dB High-capacity summer cooling
InstaCool Pro 18K PTC 18,000 BTU PTC Electric Heat 5,120 BTU App / Voice / Remote / ADB 52 dB Cooling plus light electric heat
InstaCool Pro Max 18K 18,000 BTU Heat Pump 16,000 BTU App / Voice / Remote / ADB 52 dB Cooling plus stronger heat-pump support

InstaCool Pro 18K

Cooling18,000 BTU
HeatingCooling only
Noise52 dB
Best forHigh-capacity summer cooling

InstaCool Pro 18K PTC

Cooling18,000 BTU
Heating5,120 BTU PTC electric heat
Noise52 dB
Best forCooling plus light electric warmth

InstaCool Pro Max 18K

Cooling18,000 BTU
Heating16,000 BTU heat pump
Noise52 dB
Best forCooling plus stronger heat-pump support
📌 Rule of thumb: choose Cooling Only for summer, PTC for occasional light warmth, and Pro Max Heat Pump when you want the most capable 18K setup.

Choose your 18K RV AC

Same high-output cooling class. Three different comfort strategies.

Quick buying notes

Use these simple rules before choosing your model.

Is 18K too much for every RV? Not every camper needs it. 18K makes the most sense for larger cabins, slide-outs, wide windows, hot regions, or older 13.5K/15K units that run constantly.
PTC vs heat pump? PTC is light supplemental warmth. Heat pump is the stronger built-in heating choice for broader shoulder-season comfort.
Can rooftop heating replace a furnace? No. PTC and heat pump models help with mild cold, but freezing conditions still call for a dedicated RV furnace.
Will it fit my RV roof? These models are designed around the common 14.25″ × 14.25″ RV roof opening, but confirm roof thickness, duct setup, clearance, and power before installation.
Fogatti RV accessories compatible with major camper brands including Grand Design, Coachmen, and Fleetwood, displayed with various travel trailers and fifth wheels by a scenic mountain lake.Fogatti RV accessories compatible with major camper brands including Grand Design, Coachmen, and Fleetwood, displayed with various travel trailers and fifth wheels by a scenic mountain lake.

Trusted OEM supplier to leading RV brands worldwide

Broad product range. Practical engineering. Wide compatibility.

Trusted OEM supplier
to leading RV brands
worldwide

Broad product range.
Practical engineering. Wide compatibility.

Blog posts

View all
FOGATTI at CARAVAN SALON Düsseldorf 2026: A Look Back at the Show

FOGATTI at CARAVAN SALON Düsseldorf 2026: A Look Back at the Show

From August 28 to September 6, 2026, FOGATTI joined the international RV community at CARAVAN SALON Düsseldorf, one of the world's leading trade fairs for motorhomes, caravans, and mobile living. H...

Oct 26, 2026
Fall RV Road Trips in Canada: Best Routes & Essential Travel Tips

Fall RV Road Trips in Canada: Best Routes & Essential Travel Tips

Discover four scenic fall RV road trips across Canada, with autumn destinations, campground planning, heating tips, and cold-weather travel advice.

Oct 23, 2026
rec-furnaceLarge fifth wheel RV parked in a snowy winter landscape with FOGATTI RV furnace heating setup

RV Furnace Buying Guide: How to Choose the Right BTU for Your Camper

Cold-weather RVing depends on more than choosing the biggest BTU. This guide helps campers match Fogatti InstaHeat 25K, 30K, and 35K Ultra furnaces to their RV size, winter conditions, heating need...

Oct 23, 2026