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These FOGATTI RV furnaces take the cold out of winter camping

A compact direct-vent heater for small rigs and a 35,000 BTU ducted furnace for bigger ones

Three FOGATTI RV furnace units sit on snowy rocks in front of a snow-capped mountain range, next to a white SUV hitched to a travel trailer parked in the snow. Credit: FOGATTI

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Winter is hard on stock RV furnaces. On a freezing night, they cycle on and off for hours, the propane bill climbs with every restart, and some cold spots just don’t go away. If you want steadier heat on winter trips, try a FOGATTI RV furnace.

FOGATTI is an OEM supplier to Thor Industries and Forest River that makes dedicated furnaces for rigs of different sizes. Its compact 20,000 BTU Square Profile RV Heater fits small trailers and truck campers, and the 35,000 BTU InstaHeat Ultra has the power for larger RVs. Pick the one that matches your rig, and keeping your space warm this winter gets a lot easier.

Serious heat for full-size rigs

FOGATTI’s 35,000 BTU InstaHeat Ultra pushes 260 to 320 CFM of warm air through your RV’s ducts. In a fifth wheel or motorhome, that means the whole rig warms up in minutes instead of hours.

The InstaHeat Ultra has four power levels and three modes (Rapid, Standard, and Sleep), so you can turn the heat down when you don’t need all 35,000 BTU. Because the furnace isn’t switching on and off at full power, it uses up to 30 percent less propane than a traditional furnace. Sleep mode drops the noise to 40 dB, quieter than a library, so you can sleep through the night.

For safety, the furnace has triple anti-explosion protection and an electronic wind pressure sensor that adjusts for gusts up to 30 mph. If anything goes wrong, the wired controller sends a fault alert and runs eight diagnostic checks. Installation takes one to two hours, and you can mount the furnace horizontally or vertically. Seven vent openings make it easy to connect to the ducts you already have.

Product image of InstaHeat Ultra 35K BTU
InstaHeat Ultra 35K BTU
$699.99

This ducted furnace heats fifth wheels, motorhomes, and larger travel trailers in minutes with up to 35,000 BTU and 260 to 320 CFM of airflow. Four power levels and three modes cut propane use by up to 30 percent, and Sleep mode runs at just 40 dB.

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Compact heat that fits a truck camper

Small rigs have a different problem. In a truck camper or teardrop trailer, your furnace has to compete with storage and living space for every inch. FOGATTI’s 20,000 BTU Square Profile RV Heater has a square shape that fits into tight spaces without crowding the room around it. Installation is direct-vent, so no external ductwork has to run through the walls or floor. For owners retrofitting a small trailer themselves, that makes the job simpler and less expensive.

A sealed combustion system pulls in outside air to burn and sends exhaust back outside, so no combustion gases enter the cabin. That matters most in a small space where a family sleeps a few feet from the heater. On cold mornings, a Powtek air pressure switch and electronic spark ignition start the furnace reliably. FOGATTI also redesigned the fan and burner to run quieter than its previous models, and the new fan spreads warm air more evenly through the living area. A simplified cabinet makes routine maintenance and inspection easier. CSA certification confirms the heater meets safety standards for North American RV use.

Product image of FOGATTI 20,000 BTU Square Profile RV Heater
FOGATTI 20,000 BTU Square Profile RV Heater
$899.99

This compact direct-vent heater fits truck campers, teardrops, and small trailers without any external ductwork. A sealed combustion system keeps exhaust out of the cabin, electronic spark ignition starts the heater reliably on cold mornings, and it’s CSA certified for North American RV use.

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Which RV furnace matches your rig

The key to staying warm on cold nights is not to find the biggest furnace you can. Instead, look for one sized for your rig. Owners of truck campers, teardrops, and small travel trailers should look at the 20,000 BTU Square Profile RV Heater. No ductwork means an easier install, and 20,000 BTU is plenty of heat for a compact space.

Fifth wheels, Class A and Class C motorhomes, and larger travel trailers would do best with the 35,000 BTU InstaHeat Ultra. Its variable output avoids burning propane you don’t need, and ducted airflow reaches every zone of a bigger floor plan. Installing either one before the first hard freeze means your rig is ready when peak winter travel season starts.