How To Refill Propane Tank In RV?

If you go to a self-serve station, you must be extremely cautious since propane can be harmful if not handled properly. Make sure you have an overfill protection device if you want to replenish your tanks manually (ODP). If your tank doesn’t, you won’t be able to securely fill it.

You can only fill your tanks to 80% capacity, leaving enough room for the liquid to grow into a gas. You might go above the limit if you don’t have the ODP stamped on a triangle handle.

Wear neoprene gloves when replenishing yourself. The temperature of liquid propane is incredibly low. Take your RV tanks to a propane filling station, whether they are DOT cylinders or an onboard ASME tank, and have someone there do it for you.

Is it possible to fill your own propane tank in your RV?

Propane tanks are most usually refilled by a professionally trained staff person at the location where you’re filling your tank in North America (which is why we mentioned it’s quite easy to refill a motorhome propane tank)!

Simply drive the motorhome to a propane-selling location and pull up to the area where their propane fill is placed. Allow a professional to fill your propane tank for you by positioning your RV on the same side as the fill site. That’s all there is to it.

What is the best way to fill a horizontal RV propane tank?

The only safe way to fill propane tanks that are in a horizontal position is to remove the tank, place it on the scale, and fill it to weight in the VERTICAL position. When the tank is full, make sure it is correctly bled to avoid overfilling when in the horizontal position.

DOT cylinders

When you think of a propane tank, you generally think of DOT cylinders. Towable trailers like campers, fifth-wheels, and popups have these cylindrical tanks mounted vertically on the tongue or back bumper.

Because DOT tanks are not permanently attached to the RV, you may easily relocate them or swap them out. Because they are smaller, you’ll often see them in pairs on RVs.

Because they are controlled by the Department of Transportation, they are referred to as DOT tanks.

ASME RV propane tanks

The American Society of Mechanical Engineers approves and regulates ASME tanks, which are commonly found on RVs. ASME tanks, unlike DOT cylinders, are permanently attached to RVs. A single tank is normally located horizontally beneath the cabin, near to the main entryway.

RV propane tank sizes

The 20-pound and 33-pound tanks are the most frequent tank sizes, especially for DOT cylinders.

While 33-pound tanks hold more propane, 20-pound tanks are more widespread and can be found at grocery stores, petrol stations, and other locations. Tanks weighing 33 pounds are more difficult to come by, which might be problematic.

ASME tanks come in a variety of sizes because they are permanently attached to the RV. Some are as little as 20 pounds, while others may handle up to 100 gallons of propane, or 420 pounds.

Is it safe to use propane in an RV?

An RV’s propane system supplies heat and hot water, as well as power for the kitchen and refrigerator, as well as fuel for barbecues and other small equipment.

Department of Transportation (DOT) cylinders and American Society of Mechanical Engineers (ASME) tanks are the two most common forms of propane containers and systems.

Two movable DOT cylinders, positioned vertically upright and affixed on the outside front or back of the RV, are used in travel trailers, folding camper trailers, and fifth-wheel RVs.

A single, permanently placed ASME tank, positioned horizontally beneath the cabin, near the entryway, is used in motor homes.

All refilling, repair, and replacement of containers must be done by certified service experts, regardless of container type.

Do not paint propane cylinders, valves, or mounting hardware, even if you touch up your RV from time to time. This could hide crucial service faults, cause valve troubles, or cause system failure.

Make sure your system is inspected by a trained service technician at least once a year.

They’ve been educated to spot low tank pressure, leaks, and other possible hazards and respond appropriately.

Do not attempt to connect your propane pipework to a different gas source or to repair any propane-related component on your own.

You should also perform the following fast checks in addition to monitoring your propane fuel gauge:

Clear any debris, sticks, dust, twigs, insects, or other anything that may be obstructing venting from external vents.

Look for symptoms of rust, corrosion, fatigue, or wear and tear on propane cylinders and holding mechanisms.

Check the brackets and mounting hardware for ASME tanks as well.

Any problems should be checked out by a professional service expert.

Make sure your RV has at least one Class BC fire extinguisher, as well as propane, carbon monoxide, and smoke alarms that are working.

If you need to replace or install a new detector, make sure to follow the manufacturer’s installation, placement, and maintenance recommendations.


Without a power supply, most RV refrigerators can keep food and beverages cold for several hours.

While driving, it is suggested that propane systems be turned off.

Other travel safety precautions include:

During refueling, turn off propane supply valves, pilot lights, ignitors, and appliances, and have everyone depart the vehicle.

Never use a range burner for heat or any other equipment for a purpose other than what it was designed for.

When you’re near tanks, fueling stations, or other equipment that could contain gasoline or propane, put out all burning materials.

Before entering tunnels or confined spaces, turn off propane supply valves.

Keep an eye out for any signs directing you away from restricted locations, such as military sites.

Portable fuel-burning barbecues and stoves, such as those made of wood, charcoal, or propane, should not be used inside the RV or near the entryway. This equipment can cause fires or carbon monoxide poisoning if used inside an RV.

Maintain a safe distance between your car and any heat source, such as grills or fire pits.

Maintain a distance of at least 10 feet between propane tanks and cylinders and heat sources.

It’s critical to provide ventilation whenever you utilize portable propane appliances like generators or heaters.

Follow all safety precautions provided by the appliance manufacturer.

Leaks in propane systems are not “normal.” If you notice a leak or a propane odor (like rotten eggs), have it checked out right away.

Put extinguish all smoking materials, pilot lights, and other open fires as soon as possible. Turn off all lights, appliances, and phones. These sources can produce flames or sparks, which can result in an explosion or fire.

Turn off the gas supply valve on your cylinder or container if you are able.

Have a trained service professional evaluate your complete system before restarting or using any of your gas appliances.

Thank you to the Propane Education and Research Council (PERC) for providing this safety information, which you can also find in this RV Safety pamphlet that you can print and take with you on the road.

In an RV, how long does a 20-pound propane tank last?

The first step in figuring out how long your propane tank will last in an RV is to figure out how big it is. The propane tanks in RVs are 80 percent filled. You can check your receipt to discover how many gallons were put in an empty tank if you’re filling it.

You will need to multiply the number of gallons in your tank by 91,502. The number of BTUs per gallon of propane is this.

The BTU demand of your stove, water heater, and furnace may then be determined. This information can be found in the owner’s manual or on a tag attached to the appliance. The BTU rating varies depending on the appliance.

When you add these values up, you’ll obtain your entire BTU requirement. The number of hours of propane you’ll have for the appliances you added to your calculation is calculated by multiplying this number by your total BTUs.

Because certain appliances are used more frequently than others, this figure may vary, but it will give you a fair indication of how long your gas will last.

How long does 20lb RV Propane tank last in an RV?

The length of time a 20lb propane tank will endure is determined by a number of factors. Are you in possession of a little or large RV furnace? Do you use your furnace on a regular basis? How frequently will you use your hot water tank?

When run continuously for an hour, the average-sized RV furnace will burn roughly 1/3 gallon of propane. This indicates that a 4.5 gallon propane tank in a 20-pound RV propane tank should last roughly a week.

This, too, varies depending on how frequently you use your furnace, hot water heater, and propane-powered appliances. Because of these estimates, having spare tanks or using dual propane tanks is always a good idea.

How much propane does an RV furnace use?

The RV heater, often known as a furnace, runs on propane. Follow the procedures above to establish how many hours of furnace use you have depending on the size of your RV propane tank and the BTU requirement of your furnace to estimate how much propane your RV furnace will use.

Do you leave both propane tanks on your RV open?

Both tanks must be turned on and off before either of them may be removed in an automatic changeover system. For convenience and ease of usage, I strongly advise using the automated changeover.

Is it possible to fill a propane tank that isn’t empty?

Propane gas is used in more than 10% of US homes for cooking and other heat-generating appliances. Gas is delivered to households in secure metal containers. But, given that these tanks are pressurized, can they be refilled before they’re empty?

A propane tank can be refilled before it runs out. Before a refill, the tank does not need to be fully empty. To avoid overfilling the tank, take in mind the amount of residual gas and available space before refilling it.

We’ll go over why it’s okay to replenish a propane tank before it’s empty, why you shouldn’t empty it to the bottom, and when it’s the perfect time to restock your tank later in this post. In addition, I’ll point out three things to remember.

How many gallons does a 20-pound propane tank hold?

Propane Tank, 20 pound Grill cylinders are 20-pound propane tanks that store 4.6 gallons of propane when fully charged.

What happens if the propane in your RV furnace runs out?

When you’re on the road, staying warm is one of the most important factors that define your degree of comfort. Your RV furnace’s primary function is to keep you warm. It works on gas and generates heat to keep your RV warm and cozy no matter what the weather throws at you. But what happens if the propane runs out? To provide you with the solution, we’ve combed through the most credible sources.

When a propane tank runs out, the pressure in the tank continues to decline until the RV furnace stops working completely. Allowing the gas tank to run dry can result in leaks, airlocks, rust accumulation in the tank, and broken brake lights. It’s recommended to keep your propane tank full to avoid these issues with your RV.

When it comes to this topic, there’s a lot more to learn. Continue reading to learn about the consequences of running out of propane, how to tell if your RV is out of propane, how to refuel it, and other useful information.