04/24/2026
YOUR RV RUNS ON PROPANE MORE THAN YOU PROBABLY REALIZE.
Most RV owners think of propane as just the stove. The reality is propane is quietly working behind the scenes on nearly every comfort system in your rig. And when any one of those systems develops a problem, the consequences can range from an inconvenient trip to a dangerous one.
Here's what's running on propane in your RV and what to watch for on each one:
- Your Stove and Oven
The most visible propane appliance in your RV. Watch for burners that won't light, uneven flames, or a lingering gas smell after the burner is off. Any of these warrant immediate attention before your next trip.
- Your Furnace
Your RV furnace runs on propane and fires a burner to heat air that circulates through your rig. Signs of trouble include delayed ignition, the furnace cycling on and off without heating properly, unusual smells when it fires up, or no heat at all. A furnace that struggles in cool weather will completely fail in cold weather — often at the worst possible time.
- Your Water Heater
Whether yours is a standard tank style or a tankless unit, it runs on propane. Watch for slow hot water recovery, a pilot light that won't stay lit, or water that smells like sulfur. An inefficient water heater is often the first sign of a propane system issue that affects other appliances too.
- Your Refrigerator
This one surprises a lot of people. Most RV refrigerators run on both electricity and propane depending on your power source. When running on LP the burner assembly and flue are critical components. Watch for the refrigerator failing to cool on LP mode, a yellow or orange flame instead of blue, or soot buildup around the burner area. These are not normal and should be inspected.
Now let's talk about your tank itself.
Propane Tank Recertification - Do You Know When Yours Expires?
This is one of the most overlooked maintenance items in RV ownership and one of the most important.
Standard portable propane cylinders - the kind on most travel trailers and fifth wheels - must be recertified every 10 years from the date of manufacture. That date is stamped directly on the collar of the tank. After the initial 10 years, tanks must be recertified every 5 years.
An expired tank is not just a technicality. Many propane exchange and refill stations will refuse to fill an expired cylinder. And more importantly, an uncertified tank has not been inspected for corrosion, valve integrity, or structural soundness. That matters a great deal when you are traveling with a pressurized flammable gas cylinder attached to your rig.
Fixed ASME tanks - the permanently mounted tanks on most Class A and Class C motorhomes - do not require recertification on the same schedule but should be inspected annually as part of your propane system service.
How to check your tank:
Look at the collar - the curved metal ring around the valve. You will see a month and year stamp. That is your manufacture date. Count forward 10 years. If that date has passed and you have not had it recertified, it is time.
Not sure about the condition of your propane appliances or when your tanks were last certified? That is exactly what our annual propane inspection covers. We check your regulator, your system function, your appliances, and your tanks so you know exactly where you stand before you head out this season.
Don't guess with propane. Come see us.
3619 AL-69
, AL 35976
(256) 571-9399
https://alabamarvservice.com/rv-lp/
LP propane safety, DOT vs ASME, regulator calibration, and annual leak testing by RVTI-certified techs in North Alabama.