Gas Geyser Installation in Cape Town
A gas geyser heats water instantly on demand, so you never run out and you only pay for the hot water you actually use. Running on LPG, it costs roughly half of an electric geyser, works through loadshedding, and frees up your prepaid electricity for everything else.
Why homeowners switch to gas
Here is what is usually going on, and exactly how we fix it.
Running out of hot water
An electric geyser stores a fixed tank of hot water. Once it is used up, you wait 45 to 90 minutes for it to reheat. A gas geyser heats water instantly as it flows through the unit, so hot water never runs out, no matter how many people shower.
- Cold showers when the tank empties
- Waiting for the geyser to reheat between showers
- Not enough hot water for a bath after a shower
A tankless gas geyser replaces the electric unit and heats water on demand. The size is matched to your household (typically 12L/min for 1 bathroom, 16L/min or 20L/min for 2 or more). Installation takes 3 to 5 hours including the gas line and LPG bottle setup.
High electricity bills from water heating
Water heating accounts for 30 to 40 percent of the average South African household electricity bill. An electric geyser draws 3 to 4 kW and reheats throughout the day whether you use hot water or not. A gas geyser only burns gas while hot water is flowing.
- Electricity bill higher in winter when the geyser works harder
- Prepaid units disappearing faster in cold months
- Geyser thermostat set high to compensate for a small tank
Switching to LPG gas for water heating typically cuts the water-heating portion of your electricity bill by 40 to 60 percent. A 48kg LPG bottle lasting 2 to 3 months for a family of four costs roughly R650 to R950, compared to R1,500 or more in electricity for the same period.
No hot water during loadshedding
When the power goes out, an electric geyser stops heating. If loadshedding hits Stage 4 or higher, the tank goes cold and stays cold. A gas geyser runs entirely on LPG and needs no electricity, so hot water flows regardless of the grid.
- Cold showers during Stage 2+ loadshedding
- Planning showers around the Eskom schedule
- Considering a solar geyser but the roof faces south
A gas geyser operates independently of the electrical grid. The unit ignites via a battery or water-pressure piezo ignition, so it works through any stage of loadshedding. For full home backup, see our solar installation page.
Old electric geyser failing
Electric geysers typically last 5 to 8 years in Cape Town conditions. If yours is leaking, making noise, or tripping the breaker, a direct swap to a gas unit at the point of replacement avoids buying another electric tank that will fail the same way.
- Geyser is more than 5 years old
- Rust or water stains around the unit
- Element or thermostat replaced more than once
- Tripping the DB board breaker
When replacing a failed electric geyser, a gas unit can be installed in the same roof space or relocated to an exterior wall (preferred for ventilation). The old electric point is capped safely. A gas CoC is issued for the installation.
How it works
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What a gas geyser installation costs
Indicative 2026 pricing for LPG instant gas geysers in Cape Town. The total depends on the unit size (litres per minute), the gas line distance, and whether you need an LPG bottle installation. Every job is quoted after a free site assessment.
Suitable for 1 bathroom. Unit, gas line (up to 3m), LPG bottle and regulator setup, and a gas Certificate of Compliance.
Suitable for 2 bathrooms. Higher flow rate for simultaneous use. Includes gas CoC.
Suitable for large homes with 2 to 3 bathrooms. Premium brands (Bosch, Atlas). Includes gas CoC.
If you already have a gas geyser installed but need a Certificate of Compliance for insurance or property transfer.
We install Bosch, Atlas, Jade, and other SABS-approved LPG instant water heaters. A registered gas installer issues a Gas Certificate of Compliance on every job, which your insurer requires to cover a gas-related claim.
Frequently asked questions
How much does a gas geyser installation cost in Cape Town?
A complete installation (unit, gas line, LPG bottle setup, and gas CoC) starts at about R7,500 for a 12L/min unit suitable for one bathroom. A 16L/min unit for two bathrooms is from R9,500, and a 20L/min premium unit is from R12,000. You get a fixed quote after a free site assessment.
Which gas geyser brands do you install?
We install Bosch, Atlas, Jade, and other SABS-approved LPG instant water heaters. The brand and size depend on your hot water demand (bathrooms, simultaneous use, and incoming cold water temperature). We recommend specific models after assessing your home.
Do I need a gas Certificate of Compliance?
Yes. Under SANS 10087, any fixed LPG gas installation must be certified by a registered gas installer and issued with a Gas Certificate of Compliance. Your insurer will require this certificate to cover a gas-related claim, and it is mandatory for property transfer. Every installation we coordinate includes the gas CoC.
Can a gas geyser replace my electric geyser?
Yes. A tankless gas geyser can replace an electric unit entirely. The gas unit is typically mounted on an exterior wall for ventilation, and the old electric connection is safely capped. Some homeowners keep the electric geyser as a backup, but most find the gas unit covers all their needs at roughly half the running cost.
How much LPG gas does a gas geyser use per month?
A family of four using hot water for showers and dishes typically goes through a 48kg LPG bottle every 2 to 3 months, costing roughly R650 to R950 per bottle. Compared to the R1,500 or more in electricity that the same household would spend on water heating, the savings are significant.
Is a gas geyser cheaper to run than electric?
Yes, roughly 40 to 60 percent cheaper for water heating. A gas geyser only burns gas while hot water flows, while an electric geyser reheats the tank throughout the day. Most households see the payback on the installation cost within 18 to 24 months of electricity savings.
Does a gas geyser work during loadshedding?
Yes. A gas geyser runs on LPG and uses a battery or water-pressure piezo ignition, so it needs no grid electricity. Hot water flows through any stage of loadshedding.
Popular areas for gas geyser installation
Popular areas we cover across the Western Cape.
Homeowners trust HomePulse
“It was quite an intricate job in a confined space, yet the workmanship was exceptionally neat, precise, and professional.”
“We had a geyser burst at 11pm on a Friday night, and the response was immediate. Dale quickly arranged for a plumber to stabilise the situation and then handled the entire replacement process through the manufacturer's warranty on my behalf.”
“I want to extend a special thanks to Dale for his exceptional coordination, his willingness to assist over weekends, and for providing reports as well as feedback after hours.”
“A very quick response from the HomePulse team on a Sunday evening for a pipe that was leaking in my roof. Very happy with their work.”
“Had a blocked drain and almost a real serious problem. Guys came out late on a Saturday night, was very professional and helpful. Will use them again and can recommend”
“To the plumbing team of Dale and Colin, many thanks for your prompt and professional service in resolving the hot water cylinder crisis.”
“Great customer service. Constant follow up and feedback received. Good pricing as well. I can highly recommend their services.”
Learn more
Complete guide to gas geyser installation in Cape Town
Brands, sizing, running costs, and the SANS 10087 compliance you need for insurance.
Electric geyser repairs and replacement
Kwikot and Franke electric units, anode checks, and PIRB Certificates of Compliance.
Solar power for full home backup
SSEG-compliant solar and battery systems that beat the tariff hike.
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