How Much Gas Is in a 48kg Bottle? Everything You Need to Know
Published 14 May 2025
The 48kg gas bottle is the largest standard cylinder size in South Africa, used by restaurants, businesses, and high-consumption homes. Here is what you need to know.
What Is in a 48kg Gas Bottle?
A 48kg gas bottle contains exactly 48 kilograms of liquefied petroleum gas. It is the largest standard LP gas cylinder size used in South Africa and is typically deployed in commercial settings, large residential properties, and high-consumption applications.
The tare weight (empty cylinder weight) for a 48kg cylinder is approximately 24–28 kg, bringing the total weight of a full 48kg cylinder to around 72–76 kg. This weight means the cylinder cannot be hand-carried — it is rolled on its base edge or moved with a proper cylinder trolley. Installation at a fixed outdoor location by a certified gas technician is required.
How Long Does a 48kg Gas Bottle Last?
Usage varies enormously depending on the application:
Large household (cooking, geyser, heating): 4–8 weeks. A 48kg bottle covers multiple appliances running simultaneously.
Small restaurant or commercial kitchen: 7–14 days for a busy kitchen with multiple burners running daily during service.
Medium restaurant (full service, braai, oven): 3–7 days at peak capacity.
Large industrial or commercial application: 1–5 days depending on load.
Pool heating or large boiler: Usage varies widely. Contact Alectra Gas for a consumption estimate based on your specific application.
For most businesses in Pretoria, a 48kg bottle provides a practical balance between cylinder change-out frequency and storage footprint.
How Much Does a 48kg Gas Bottle Cost?
At Alectra Gas, a 48kg cylinder exchange costs R1,550, plus the standard R50 Pretoria delivery fee. Order a 48kg cylinder online here. That works out to approximately R32.29 per kilogram, offering the best per-kilogram value of our three cylinder sizes — better than both the 9kg and 19kg options.
For businesses consuming multiple 48kg cylinders per month, contact us about volume pricing and scheduled delivery contracts. See our commercial LP gas supply guide for more on business accounts. Regular commercial customers may qualify for priority delivery and account-based invoicing.
Installation and Safety Requirements for 48kg Cylinders
Unlike the smaller 9kg and 19kg cylinders, 48kg cylinders require more formal installation:
Certified installation: A registered LP gas installer (LP0 or LP1 rated) must install the cylinder, regulator, manifold, and connecting pipework. This triggers a Certificate of Conformity (CoC), which is legally required for commercial premises and strongly recommended for all 48kg installations.
Outdoor gas cage: The cylinder must be housed in a compliant, ventilated outdoor gas cage constructed from non-combustible materials, with at least 50% open ventilation and a lockable door.
Setback distances: Per SANS 10087, the cage must be positioned at least 1 metre from building openings, 3 metres from drainage systems, and 3 metres from ignition sources.
Signage: "Flammable Gas – No Smoking – No Naked Flames" signs must be posted at the storage point.
Alectra Gas can recommend certified gas installers in Pretoria if you need assistance setting up your 48kg installation.
Frequently Asked Questions
Can I use a 48kg gas bottle at home?
Yes. Many large South African homes use 48kg cylinders for cooking, geysers, pool heating, and space heating. The cylinder must be correctly installed outdoors by a certified gas technician.
How many 48kg bottles does a restaurant need per month?
This varies significantly by kitchen size and meal volumes. A small takeaway may use one to two 48kg cylinders per month. A full-service restaurant with multiple burners may use four to eight or more. Contact us to discuss a tailored supply schedule.
Do I need a permit to store a 48kg cylinder at my home?
For a single 48kg cylinder at a domestic property, no formal permit is required, but the installation must comply with SANS 10087. For multiple large cylinders or commercial storage, approval from the City of Tshwane may be required.
What is the difference between a 48kg cylinder and a bulk gas tank?
A 48kg cylinder is a portable, exchangeable steel cylinder. A bulk tank is a permanently installed vessel holding hundreds or thousands of litres and is refilled by a tanker truck. Bulk tanks suit very high-volume users but require significant infrastructure investment.