We answer all your questions about our products and services.

What is propane gas?

Propane is a hydrocarbon, composed of hydrogen and carbon, extracted from oil in refining operations or from natural gas and associated gases, in oil fields.


In its natural state, propane gas is gaseous, but liquefies when exposed to room temperatures and under low pressure, reducing its volume up to 250 times, making it possible to handle, store and transport.


Propane gas, in its gaseous state, weighs twice as much as air; and in liquid state, half that of water. It is an energy source that has a higher calorific power and can reach a flame temperature of about 1,900ºC in air and 2,800ºC in oxygen.


For combustion to be optimal, propane must always remain in its gaseous state. As it liquefies starting at 44º below zero, it is ideal for outdoor installations and in cold areas, where it never liquefies.


Because propane gas is odorless and colorless in its natural state, as a security measure sulfur derivatives are added to it to detect possible leaks, due to its characteristic odor.


Another important characteristic of propane is that it is not toxic, it burns clean. It does not produce smoke or soot in combustion and it thereby preserves the environment.


How are LPGs (Liquefied Petroleum Gases) supplied?

Liquefied Petroleum Gases can be supplied in bulk or bottled.

  • Bulk and piped
    1. Tankers load the product at the refinery or storage plants.
    2. By means of a pre-established route and depending on the orders requested, the gas containers of the customers are filled.


  • Bottled, with various sizes of packaging or bottles
    1. The bottles are filled with gas in bottling plants.
    2. According to the client's order, the bottles are replaced as they are consumed.

Why are liquefied petroleum gases used?


Cepsa distinguishes the following groups among the multiple and various applications for propane gas in various industries:


  • Kitchen
  • Hot water
  • Heating
  • Air conditioning
  • Gas appliances

A single tank can simultaneously power several gas appliances for different uses such as ceramic hobs, washing machines, refrigerators, dryers, dishwashers, etc.


Brickworks, Cheese dairies, Ceramics, Pre-cooked meals, Chemical industry, Packaging of wine, Foundries, Cookie factories, Fish farms, Bread factories, Paper mills, Textiles, Cold health, Canning plants, Sausage factories, Recycling batteries, Gas for vehicles, Candy factories, Bakeries.


Restaurants, Hotels, Hospitals, Spas, Universities, Schools, Local Authorities, Sports centers, Campsites, Convents, Institutes, Barracks, Nursing homes, Nurseries, Incinerators, Universities.

Agricultural sector:

Poultry farms, Pig farms, Cotton gins, Pepper dryers, Tobacco dryers, Greenhouses.


Public transport, Forklift trucks. 

Liquefied petroleum gases (LPG) are bottled in storage containers adapted to the needs of the domestic, artisanal, industrial or agricultural sector.


How is propane gas stored?

Given its form of storage, propane gas is one of the most convenient energy sources on the market, as it can be supplied through individual deposits (bulk) or through a system of piping, without requiring the installation to be located near a gas pipeline to enjoy its advantages.

  • In bulk: in an individual tank to serve home, business, industry or farm.
    1. Types of tanks: Air: in an open space, like a rooftop, green area, etc.
    2. Buried: hidden, underground.
    3. Capacity: from 1,029 kg to 10,227 kg payload.
    4. Installation: simple and economical, designed so that you don't have to worry about a thing. It adapts to the needs of each customer.
  • Piped: the deposit is located in a community area, in order to meet the energy needs of a residential building, neighborhood or municipality.

Propane gas is supplied through an individual meter, which records the consumption of each user. Meters are placed in an appropriate closet or room, which must meet the existing regulations, so that any user can easily access the consumption reading to monitor expenditure. The consumption is charged by direct debit.

  1. Types of tanks: Air: in an open space, like a rooftop, green area, etc.
  2. Buried: hidden, underground.
  3. Capacity: from 1,029 kg to 10,227 kg payload.
  4. Installation: Cepsa has a group of technicians who cooperate with and advise architects, developers and builders from the start until the completion of the work. Facilities for the use of propane gas are simple and economical, designed to adapt to your needs.


What should be done in the event of an accident?

In the event of a leak or spill:

  • Stand with your back to the wind.
  • Try to control the fire.
  • Turn off the stopcock if possible.
  • Cool down the surrounding and burnt equipment with water.
  • If the leak has stopped, extinguish the fire with dry dust or water spray, otherwise, let it be consumed in a controlled manner.


First aid

  • Eyes

Wash your eyes with plenty of cold water for at least 15 minutes, and seek medical attention as soon as possible.

  • Skin

Dry your skin with plenty of cold water, remove the contaminated clothing and quickly go to the doctor.

  • Inhalation

Breathe in the open air, use oxygen or artificial respiration if necessary and head to a medical center as soon as possible.


How do I register for e-billing?

To register, you must sign up in the Reserved Area of our website, and register for the online billing service.

To unsubscribe, you can contact us by calling +34 902 416 416 or via the email

How can I download bills?

Sign up in the reserved area of our website, and by registering for the online bills service, you can download the bills issued beginning from the time of your registration.

How can I change my bank account?

You must send the SEPA Direct Debit form by mail to: Paseo de la Castellana 259A, 19th floor. C.P. [Zip Code] 28046, Madrid (Madrid). To speed up the process, we would ask you to send us a scanned document to

Can I change the email for my user profile?

You can make this change, but not via the website. To do so, please send the old details and those you want to replace them with to

Is there any emergency telephone number?

To deal with any emergency or malfunction, Cepsa provides you with the following emergency telephone number at your disposal 24 hours a day. +34 902 100 224.

Where should you go to get more information?

For more information, you can call our customer service line on +34 902 416 416.

Is it appropriate to have another company in the industry inspect the installation?

Yes, any authorized technical service is suitable for Cepsa supplies. In the event the inspection is carried out by our technical service, Cepsa offers you insurance with three times as much coverage as you have.

What requirements do I need for procurement?

The customer fills out and signs the policy. The customer must submit the current internal installation inspection certificate.

Can the customer use the same butane and propane installation as they currently have?

Yes, the same installation he/she has at present can be used.

What is the validity period of the inspection of the installations?

The period of validity of an inspection of the installation varies between 4 and 5 years depending on the Autonomous Community. Cepsa sends a letter to its customer reminding them when the expiration of the inspection of their installation is approaching.

What do you recommend to do in case of any questions?

If you detect any smell of gas or any possible malfunction in your installation, our emergency 24-hour phone line is: +34 900 100 225.