“Can I run my RV refrigerator on propane while driving?” It’s a common question and certainly one worth asking. In this post, we’re looking at whether running an RV fridge on propane while driving is possible and, more importantly, if a fridge running on propane in a rig driving down the road is safe.
Do All Types of RV Fridges Run On Propane?
The answer to this question is no. Some types of refrigerators in RVs are capable of running on propane. Others, however, don’t have this capability.
For example, some RV fridges operate on 12V power or 120V power exclusively. 12V RV refrigerators and 120V RV residential refrigerators don’t offer the capability of running on propane at all.
However, absorption refrigerators are very common in RVs. These are typically two-way or three-way fridges.
A two-way absorption refrigerator can run on propane or 120V AC power. With this type of absorption fridge, if you’re connected to shore power you’ll run your refrigerator in AC power mode. When not connected to shore power, you’ll need to rely on propane mode to keep your fridge cool. You could also run a generator, but that isn’t practical for regular long-term use.
A three-way absorption refrigerator is capable of operating on propane, 120V AC power, or 12 volt DC power (as in battery power from your house battery bank or from your vehicle’s alternator).
If you have an absorption RV refrigerator, the back of the fridge is likely to look something like this.
Can I Run My RV Refrigerator On Propane While Driving?
Can RV owners run a propane refrigerator while their RV is rolling down the road? Technically yes, you can, in most situations. There used to be some states that restricted vehicles driving while propane is turned on (either your onboard tank or cylinders). However, with the advent of natural gas-powered vehicles, those restrictions have all but disappeared.
However, there are some restrictions still enforced on ferries and in tunnels, because of the added danger of fire in both situations. This is where something like the CoPilot RV GPS app comes in handy because it lets you know in advance when a propane-restricted tunnel is ahead, for example.
But the real question is whether or not you should run your propane fridge while your rig is driving down the road.
To operate in propane mode, not only must your propane be turned on, but you’ll also have a flame igniting the propane to keep the fridge cold. This is where the issue of the safety of driving an RV with propane on comes into question.
So let’s reframe the question and look at it from a safety perspective.
Is It Safe to Run My RV Refrigerator On Propane While Driving?
Let’s take a look at the safety considerations of driving an RV down the road with the fridge running in propane mode, and how we might minimize any risks that could arise as a result.
Gas Leak
One safety consideration is that having the propane turned on while driving opens the potential for a propane leak to develop as a result of vibration or rubbing that could result in a fire or explosion.
Wind Blowing the Flame
Another potential danger is that the wind and motion could cause a fire in the workings of the refrigerator. This is most likely to occur if the back of the refrigerator isn’t kept clean and free of debris.
However, it would be fairly easy for built-up debris to catch fire. So if the back of an RV refrigerator is dirty, there is much more likelihood of fire.
Explosion or Fire In An Accident
Another consideration is that if the propane is on and an accident occurs, it could result in a fire or explosion. There’s even some concern that a tire blowout could sever a propane line resulting in a leak that could ignite a fire or explosion.
When Refueling
Finally, running an RV fridge in propane mode while on the road can pose a risk at fueling stations. Here the danger lies in the potential for forgetting to turn the propane off before refueling your rig.
Turning off the propane on your RV during fueling will reduce the potential for fire or explosion, especially if you have a gas rig with the fuel fill near the fridge.
It’s important to remember that a propane fridge has an open flame. So when you’re at a gas station, it’s possible that fuel vapor could ignite from that flame behind your fridge. That’s especially true if your rig’s fuel fill is near the fridge.
How to Minimize the Dangers of Running an RV Fridge In Propane Mode While Driving
There are several ways to mitigate the potential for danger when running a propane fridge in an RV.
Turn Off the Propane
Obviously, the most effective way to reduce the potential for propane-related risks is to turn off the propane at the tank/cylinder(s) before driving your RV down the road. Going that route means that the fridge will be off during travel unless you have a 3-way fridge that can run off 12V DC.
Of course, you could run a generator to use the 120V AC side of the fridge while driving. That’s true for a residential-style fridge, too, although when we had one in our Newmar motorhome, we always ran ours off the inverter, fed by our lithium battery bank and solar panels.
Fortunately, RV fridges are usually pretty well-insulated. Once they’re cooled down, they can be left off for hours — even overnight — without a large rise in temperature.
Following are several ways to keep your food and beverages cold while the propane and fridge are turned off during road trips.
Pre-Cool the Fridge
Pre-cooling the refrigerator the night before you travel helps to thoroughly cool the fridge so that you can drive with the propane off, turning it back on when you reach your destination.
We know that making extra trips out to the RV can sometimes be a challenge for weekend warriors who have their RVs in storage, especially if it’s not near home. But pre-cooling the fridge… and the food that will go into it… really helps. That’s true even if you plan to leave the propane and fridge on while driving.
Use Ice Packs
Another trick is to freeze plastic water bottles or ice packs before hitting the road and put them inside your RV fridge to keep it cool as you drive.
Use a Small Cooler
If you’re on an extended trip and will be driving for a long time, consider using a small cooler with ice or ice packs for your food and beverages for the day. That way, you won’t need to open your RV fridge throughout the day, which would let warm air in and cool air out.
We even carry a 12-volt portable Dometic refrigerator in the back of our daily driver. Not only does it come in super handy with our new towable for the reason mentioned above, but it’s an awesome piece of gear during regular food shopping trips!
- NO ICE NEEDED: Refrigerate or Deep Freeze down to –7 °F using powerful VMSO3 compressor cooling technology
- RUGGED CONSTRUCTION: Heavy-duty, lightweight ExoFrame construction and aluminum alloy handles will stand up to any conditions
Pack Your RV Fridge Well
Keeping your RV fridge well-stocked helps keep the contents cool for longer periods when the power to the fridge is turned off.
Note that all of the above tips will help you save on propane as well.
Use a Propane Detector and Propane Leak Tester
To address the risk of a potential gas leak, make sure your RV propane detector is up-to-date and working. Note that this is unlikely to be helpful if you’re towing a travel trailer, fifth wheel, or truck camper since you wouldn’t be likely to hear the propane detector going off while you’re driving.
We wrote a whole post about RV propane detectors and included our video where we showed in real time how to replace them (yes, they expire).
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You can also use a propane leak tester to see if there’s any propane leaking.
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Add a GasStop Safety Shutoff
Add a GasStop safety shutoff to your propane tank/cylinder. This is an inline propane gauge that also adds a shutoff when a leak is detected.
- 100% PROTECTION - GasStop is a must-have safety device that protects families with RVs that have propane systems on board. Its automatic emergency...
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You can also buy GasStop through TechnoRV. If you do, be sure to use the RVGEEKS coupon code to save 5%:
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Show LessKeep the Back of the Fridge Clean
This potential risk can be reduced by keeping the back of the fridge clean. Note that there’s some potential for this to be an issue in heavy winds while the RV is parked, too… if the back of the fridge isn’t well-maintained and kept clean.
Turn Off Propane At Fueling Stations
If you make it a habit to turn off your propane when refueling your rig, this will reduce or eliminate the potential for a fire or explosion. That open flame on the back of an RV fridge won’t mix well with gasoline vapors.
Many RVers run their RV refrigerators in propane mode while driving down the road all the time. We’ve done it ourselves. Many people have done it for years without encountering a single problem. But it’s certainly safer to keep the propane off while your rig is rolling down the road.
If you choose to leave the propane on while driving, be sure to take appropriate safety precautions and be mindful of any regulations and restrictions, particularly in tunnels and on ferries.
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Kevin Knapp
Wednesday 7th of May 2025
Really appreciate the cautions and analysis. However, my rig consists of a one-ton diesel pickup carrying a large vintage Bigfoot truck camper, and most of my camping is in mountain states in the winter. I learned the hard way that the (propane) furnace and water heater need to stay running while driving during cold temperatures or risk water lines freezing. The refrigerator can be turned off but the others are ignition sources as well.
Jesse Crouse
Tuesday 18th of February 2025
From a licensed Plumber. Don't do it. Too many possible ignition sources and leak scenarios. Only takes 1 KABOOM to ruin your day.
Ed Eddie
Tuesday 18th of February 2025
What percent of fires in campers are caused by propane refrigerators? I was told by my insurance company that propane was the main cause of camper fires.
TheRVgeeks
Tuesday 18th of February 2025
Hi Ed... don't think that there's concrete enough evidence to confirm/deny that claim. But the US Fire Administration generated a report with some interesting statistics if you want to check it out: https://www.usfa.fema.gov/statistics/reports/where-fires-occur/snapshot-rv-fires.html
Jim
Tuesday 18th of February 2025
Outstanding information and follow ups to people's questions and suggestions. Love reading what you both have to say as well as your videos. I've learned a considerable amount of information, very important to me as being a first-time owner of a 34-foot travel trailer. Waiting for MA to thaw out so I can do some more improvements I want to get done and start practicing my driving skills with it before our first trip of 2025. Thank you both.
TheRVgeeks
Tuesday 18th of February 2025
Thanks so much, Jim! You made our day with your kind words. Hope the thaw starts soon so you can get your spring projects completed!
Brian Nystrom
Tuesday 18th of February 2025
We use our fridge while on the road all the time, but I've also installed a Fridge Defend system to protect it from possible issues. That said, you make a very good point about turning it off when refueling. I'll make it a point to do that from now on.