Every fixed gas installation in Johannesburg runs on LPG, which is why LPG Gas Installers Johannesburg and gas installers are the same trade under two search terms. There is no piped natural gas network to domestic properties here, so what you are really buying when you buy a gas installation is a liquefied petroleum gas supply: cylinders, a regulator, a line, and a refill habit.
LPG Gas Installers Johannesburg deals with that supply side. How much gas you actually need, what a cylinder costs to keep filled, why a changeover system pays for itself, and how LPG behaves differently from the natural gas that appliance manuals are often written for.
Tell us which appliances you plan to run and we will get LPG installers to size and price the supply.
Get LPG Installation QuotesLPG Cylinder Sizes and What They Run
| Cylinder | Roughly runs | Typical refill | Common use |
|---|---|---|---|
| 9kg | A four-plate hob for 4 to 8 weeks | R320 – R440 | Hob only, small flats |
| 19kg | A hob for 2 to 4 months | R650 – R900 | Hob plus occasional braai |
| 48kg | Hob and geyser for 4 to 10 weeks | R1,550 – R2,200 | The domestic workhorse |
| 2 x 48kg changeover | Double the above, uninterrupted | As above, per cylinder | Whole-house multi-point |
| Bulk tank | Metered, refilled by tanker | Priced per kg delivered | Restaurants and high consumption |
Refill prices move with the regulated LPG maximum price, which is adjusted monthly and set by region, with the inland Gauteng price above the coastal one. Treat the figures above as a recent guide, not a current price list.
Sizing the Supply, Not the Appliance
The mistake that produces most of the callbacks is sizing gas to the appliance you are installing today rather than the total you will end up with. A 9kg cylinder is fine for a hob. Add a gas geyser eighteen months later and it will be swapped every ten days in winter, and the pipe diameter chosen for one appliance will not carry both at full draw.
- Add up simultaneous demand, not total appliance count. A geyser firing while three burners are lit is the design case.
- Leave headroom for the appliance you have not bought yet. A fireplace or braai added later is cheap on an oversized line and expensive on a tight one.
- Consider cylinder handling. A 48kg cylinder weighs roughly 90kg full. Wherever it stands, a delivery person has to get it there.
- Winter doubles geyser consumption. Cold inlet water means the burner runs harder and longer for the same shower.
Changeover Systems
Two cylinders on an automatic changeover valve means the second takes over when the first empties, with an indicator showing you which is live. You swap the empty one whenever it suits you rather than in the middle of cooking dinner. On any installation with a geyser it is close to essential, and it costs a few thousand rand more than a single cylinder.
| Arrangement | Indicative installed cost | Suits |
|---|---|---|
| Single 9kg with regulator | R900 – R2,200 | Hob only |
| Single 19kg or 48kg | R1,800 – R4,200 | Hob, occasional use |
| Two-cylinder manual changeover | R2,800 – R6,000 | Hob plus braai |
| Two-cylinder automatic changeover | R4,000 – R9,000 | Geyser or multi-point |
| Four-cylinder bank | R9,000 – R20,000 | Guest houses, small commercial |
Get the supply sized properly before the pipework goes in. Changing it afterwards costs more than getting it right.
Compare LPG Installer QuotesLPG Is Not Natural Gas
Worth knowing, because it explains a few things installers insist on:
- Appliances need LPG jets. Imported hobs and stoves frequently arrive set for natural gas and must be converted. An installer connecting one without converting it will produce yellow, sooty flames.
- LPG is heavier than air. A leak pools at floor level rather than rising, which is why cylinder positions keep clear of drains, basements and below-ground openings.
- It runs at a different pressure. The regulator on the cylinder sets it, and regulators are not interchangeable between appliance types.
- It has more energy per unit. Which is why LPG burners are physically smaller than natural gas ones for the same output.
Refills Around Johannesburg
Practical rather than technical, but it affects which cylinder brand your installer puts in. Cylinders are brand-specific and are exchanged rather than filled, so you are tied to suppliers who stock that brand. Across Sandton, Randburg, Fourways, Midrand and the main East Rand towns, depot and hardware coverage is good and swaps are easy. On the outer edges past Springs and Krugersdorp, and in the denser blocks around Sandton and Rosebank where carrying a 48kg cylinder up a flight of stairs is not realistic, delivery becomes the sensible route. Ask your installer which brand they are supplying and who exchanges it near you.
Frequently Asked Questions
What size LPG cylinder do I need?
A hob alone is comfortable on 9kg or 19kg. A gas geyser, on its own or with a hob, really wants 48kg and preferably a pair on changeover. Multi-point installations with a fireplace or braai added typically run two 48kg cylinders.
How long does a 9kg gas cylinder last?
For a four-plate hob used daily by a couple, commonly four to eight weeks. Heavy cooking, a larger household or a wok burner shortens that considerably. It is not a useful size for anything with a geyser on it.
How much does LPG cost per kilogram in Johannesburg?
LPG is sold under a regulated maximum retail price that is adjusted monthly and set by region, and the inland Gauteng price sits above the coastal one, so the per-kilogram figure changes through the year. Check the current price with your supplier rather than budgeting off an old number.
Do I own the cylinder or rent it?
Usually you pay a once-off deposit for the cylinder and thereafter pay only for the gas when you exchange it. Some suppliers sell cylinders outright. Either way the cylinder stays brand-tied, so keep the paperwork.
Is LPG cheaper than electricity?
For cooking, gas is generally cheaper to run and considerably faster. For water heating the comparison is closer and depends on your usage pattern and the tariff you are on. The stronger argument for a gas geyser in Johannesburg has usually been availability during outages rather than pure running cost.
Can an imported gas hob be used on LPG?
Most can, but only after conversion to LPG jets, which is a job for the installer and occasionally requires a kit from the manufacturer. Confirm the kit exists before buying an unusual brand.
Can a cylinder stand inside the kitchen cupboard?
Cylinder positions are governed by SANS 10087-1 and depend on clearances from openings, drains, ignition sources and boundaries. Indoor positions are heavily restricted, which is why the cylinder usually ends up outside on an external wall. Your installer determines what is permissible at your property.
LPG supply and appliance quotes are compared through Gas Installers Johannesburg, with registered installers pricing the same brief.
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Gas Installers Johannesburg is a free quote-matching service. The gas work is carried out by the independent registered installers that quote you, and your contract is with the installer you appoint. Ask each installer for their registration and insurance details before appointing anyone.
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