How long does a 19kg gas bottle last in a static caravan?

In this article, we will discuss: How long does a 19kg gas bottle last in a static caravan? We will explain what is the best fuel for a caravan and help you choose a gas bottle. 

How long does a 19kg gas bottle last in a static caravan?

​​A 19 kg gas bottle will suffice for a few days or even a week in a static caravan. It will all depend on how many appliances you have. However, in winter, when heating is used, it will be necessary to provide several 19 kg gas cylinders, which can optionally be connected using an inverter-coupler.

The estimated lifespan of a 19 kg motorhome gas cylinder

UsageAverage gas consumptionEstimated battery life
Heating and hot water240 g / h54 hours
Oven (kitchen)97,5 g / h133 hours
Fridge370 g / h35 hours
Gas stove295 g / h45 hours

Gas cylinder autonomy calculation: what factors to take into account?

The service life of gas cylinders depends on two factors:

  1. The power of the appliance to be supplied: appliances that consume a lot of gas, such as boilers, tend to quickly exhaust the gas cylinders;
  1. The frequency of use of the device: the more regularly the bottle is used, the faster it will empty.

These two factors make it difficult to calculate the range of a gas cylinder with precision. However, it is possible to estimate the average autonomy by performing a simple calculation: Quantity of gas in the bottle (in grams) / Gas consumption per hour of the appliance (in grams).

The gas cylinder is the ideal solution for motorhomes and caravanners looking for mobility and versatility in use. Thanks to a bottle of butane or propane gas, it is possible to supply the heating, the water heater, the cooking, the refrigerator or even the air conditioning of the motorhome or the caravan.

A 13 kg bottle (propane or butane) would be enough to supply the cooking and hot water of a motorhome or a caravan for more than 45 hours. On consumer forums, Internet users state that they mainly use a 13 kg propane or butane cylinder for their motorhome or caravan. 

The table below shows the average autonomy observed by the users, knowing that the number of users is not specified, but this varies the consumption.

The average duration of gas cylinder 13 kg in the motorhome or static caravan

Outdoor temperaturesBottle usage Average service life
ColdHot water + heating (permanently)3 to 5 days
ColdHot water + heating + cooking1 week
HotHot water + cooking 3 to 4 weeks

How to increase the autonomy of a gas cylinder?

In order to increase the autonomy of your gas installation, it is possible to network several gas cylinders together using a reversing coupler. This system makes it possible to switch automatically from one gas cylinder to another. 

As soon as the first bottle is empty, the reversing coupler automatically feeds on the full bottle, allowing time to exchange the old for a new one. There are automatic and manual reversing couplers, the latter require you to connect the new bottle to be supplied yourself. 

A green light indicates the gas supply while the red light indicates that the bottle is empty and that the reversing coupler will take over on full.

How do you know how much fuel is left in the gas cylinder?

The most efficient way to find out how much gas is left in your cylinder is to weigh it. By knowing the weight of a full bottle, we can estimate the amount of gas remaining in view of its weight. 

For example, Antargaz’s 13 kg butane gas cylinder weighs 24 kg full and contains 13 kg of butane. Its empty weight is therefore 11 kg. If during the weighing its weight is 17.5 kg, it means that the bottle weighs its empty weight (11 kg) plus 6.5 kg of butane. It is therefore half empty.

Another solution to measure the remaining gas is to measure its temperature. Indeed, a gas cylinder is much cooler when it is full of gas than when it is empty. Finally, there are measuring instruments that represent the most precise solution.

Choosing between a propane or butane gas cylinder for a static caravan 

First, you should know that gas cylinders can be made from butane or propane. These two gases can very well be used for domestic purposes.

Appliances for cooking or heating, for example, are designed to work with one or the other. Also, there is usually no difference between the price of butane and propane gas cylinders when purchased, as the return price of the cylinder and the price of the gas refill are generally the same.

But it is still important to choose the right gas cylinder, because butane and propane have other differences, in the storage of the gas cylinder or in the pressure for example.

Choosing between a butane or propane gas cylinder: a comparative table

CriteriaButane cylinder Propane cylinder
StorageIndoor and outdoorExclusively outdoors
Boiling point (freezing temperature) 0 ° C-44 ° C
Capacity Small and medium-size Small, medium and large (up to 35kg)
Pressure for liquefaction1.7 bars7 bars

The criteria for choosing a gas cylinder

With the different gas cylinders offered by LPG suppliers, the choice is wide. To choose the right gas cylinder, you have to ask yourself the right questions. There are no real rules for making the right choice because it depends on the needs of the consumer himself:

  • Use: the different gas bottles adapt to many uses, from simple cooking to heating the house, including gardening. The choice of the cylinder will then depend on the use: indoor or outdoor, permanent or occasional, etc. ;
  • The size of the cylinder: there are different gas cylinders in terms of capacity. The cylinders can range from 5 kg to 35 kg. It will be necessary to choose according to its consumption, which can be determined by the number of people in the household, or the number of devices to be supplied. 

For a gas stove, for example, a 6 kg butane cylinder may suffice, while for a household using the cylinder for hot water, heating and cooling, a large 35 kg propane cylinder is recommended;

  • The device: connecting a gas cylinder requires a regulator, which is different for butane and propane. Usually, this regulator is supplied with the device purchased by the consumer and simply determines which gas cylinder to purchase.

For campers, the gas cylinder is the most practical solution. The caravans and camper vans are also equipped with spaces dedicated to gas cylinders. The consumer can choose a 13 kg gas cylinder or two connected with a reversing coupler, depending on the length of the vacation.

The bottom line

To supply the uses of a caravan, you can buy a bottle of butane or propane gas. The choice of gas is made according to the location of the storage: if it is inside, we opt for butane and if it is outside, we choose propane.

Please let us know if you have any questions or comments on the content. 

FAQ on How long does a 19kg gas bottle last in a static caravan?

How much propane does it take to heat an RV in the winter?

The average sized-RV heater would use ⅓ of a gallon of propane/hour to heat an RV in the winter. Most RVs use 20 lbs or 30 lbs propane tanks, which would last you for 10, respectively 16 hours of continuous use.

How do you know when gas bottles are running out?

When a gas bottle is running out of fuel, the tare disk will show you that the bottle is empty. This is the best way to check on how much gas is left in the cylinder. 

How to increase the autonomy of a gas cylinder?

In order to increase the autonomy of your gas installation, it is possible to network several gas cylinders together using a reversing coupler. This system makes it possible to switch automatically from one gas cylinder to another. 

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