If you’ve recently purchased your first gas heater, gas stove, or LPG appliance, you may have been surprised to discover that your brand-new gas cylinder arrived empty.
Many first-time LPG users then visit a petrol station or gas supplier expecting to have their cylinder filled, only to be told that the supplier only offers cylinder exchanges.
This often leads to confusion:
- Why can’t they simply fill my cylinder?
- Did I lose my brand-new cylinder?
- What’s the difference between an exchange cylinder and a refill cylinder?
- How do I keep a spare cylinder for when my gas runs out?
If you’ve asked any of these questions, you’re not alone.
The Two Types of LPG Cylinders in South Africa
There are two main LPG cylinder systems used in South Africa:
1. Branded Exchange Cylinders
Brands such as Oryx, Easigas, Total, Afrox, Wassaa, EPG and others operate exchange-cylinder programmes.
With an exchange cylinder:
- You purchase a cylinder and join the exchange network.
- When the cylinder is empty, you exchange it for a full cylinder.
- You do not necessarily get the same cylinder back. You might purchase a new cylinder, but when you exchange it you might receive an older-looking cylinder.
- The supplier provides another full cylinder that has been inspected, tested and filled.
This system is common at:
- Petrol stations
- Hardware stores
- Convenience stores
- Gas depots
2. Privately Owned Refillable Cylinders
Privately owned cylinders work differently. These are brands like Cadac, Totai, Alva, Megamaster and similar.
With a refill cylinder:
- The cylinder belongs to you.
- When it becomes empty, the same cylinder is refilled with gas.
- You keep the same cylinder throughout its life.
- Refills are normally performed at dedicated LPG filling facilities.
This system is popular with homeowners, commercial users and customers who prefer to maintain their own cylinders.
Why Did My New Cadac Cylinder Get Exchanged?
This is one of the most common questions asked by new LPG users.
If you purchased a new Cadac cylinder and took it to a supplier that only offers exchanges, they likely treated it as part of the exchange network. Remember, some operators only exchange, so they will take your private cylinder and give you an exchangeable cylinder in return.
The supplier exchanged your empty cylinder for a full cylinder. Many customers believe they have “lost” their brand-new cylinder, but in reality they have entered the exchange-cylinder programme.
The problem is that many retailers and suppliers do not clearly explain how the exchange system works before completing the transaction.
Can I Keep My Own Cylinder and Just Buy Gas?
Yes — but only if you are using a privately owned refill cylinder and the supplier offers refill services.
Not all gas suppliers refill cylinders, so always ask before you hand your cylinder over. Many petrol stations only offer exchanges because it is quicker, safer and easier to manage.
If you want to keep the same cylinder, you should confirm that the supplier offers LPG refills before visiting.
Why Won’t Some Suppliers Exchange My Cylinder?
Not all suppliers participate in the same exchange networks.
For example:
- Supplier A may exchange Cadac cylinders.
- Supplier B may exchange Oryx cylinders.
- Supplier C may only refill privately owned cylinders.
This is why one supplier may accept your cylinder while another refuses it.
Before travelling to a supplier, it’s worth calling ahead and asking: “Do you exchange this brand of cylinder?”
What Should First-Time LPG Users Do?
If you’re buying your first gas heater or LPG appliance, follow these simple steps:
Option 1: Exchange Cylinder
- Purchase a cylinder from a recognised exchange brand — sometimes your first purchase will come with gas.
- When your cylinder runs out, you can exchange the same brand cylinder for a full one.
- Continue using the exchange network for future gas purchases.
Option 2: Refillable Cylinder
- Purchase a privately owned cylinder. You can buy these at a retailer like Checkers or Stargas.
- Find an LPG supplier that offers LPG refills.
- Keep the same cylinder throughout its lifespan.
- Get your cylinder checked and assessed every year.
Both systems work well. The key is understanding which system you’re buying into before making your first gas purchase.
Frequently Asked Questions
Can I refill a Cadac gas cylinder?
Yes, any Cadac cylinder can be refilled, like other brands of private cylinders.
Why did my new gas cylinder arrive empty?
Many cylinders are sold empty because transporting LPG-filled cylinders involves additional safety and logistics requirements.
Is exchanging a cylinder cheaper than refilling?
Pricing varies by supplier, region and brand. In many cases, exchange pricing and refill pricing are similar, but availability may differ.
What is the best option for homeowners?
Many homeowners prefer having two cylinders. Whether you choose exchange cylinders or refill cylinders, a backup cylinder provides peace of mind and prevents interruptions when one cylinder runs empty. Assess your needs — 9kg cylinders are easier to transport, but bigger cylinders like 19kg and 48kg exchanges work better because deliveries can be provided on exchange.
Final Thoughts
The confusion around LPG cylinder exchanges and refills affects thousands of South Africans every year.
The most important thing to understand is that there are two different systems: exchange cylinders and privately owned refill cylinders. Once you know which type of cylinder you have, buying gas becomes much simpler.
Before purchasing your first cylinder, ask us at Stargas whether the cylinder is part of an exchange programme or whether it can be refilled. A simple question upfront can save a lot of frustration later.
