Prices checked 8 November 2026
Fitted gas geyser prices from installers who publish them, and unit-only prices from South African sellers.
| Job | Price | Source |
|---|---|---|
| 12 L gas geyser, fitted (1 shower) | Swap from R9,900; new installation from R17,000 incl. VAT | Core Gas Installations, Cape Town (their price guideline, October 2026) |
| 16 L gas geyser, fitted (2 showers) | Swap from R11,500; new installation from R18,600 incl. VAT | Core Gas Installations, Cape Town |
| 20 L gas geyser, fitted (3 showers) | Swap from R15,000; new installation from R22,000 incl. VAT | Core Gas Installations, Cape Town |
| 12 L / 16 L / 20 L / 30 L gas geyser, fitted | R17,600 / R18,700 / R24,500 / R29,600 excl. VAT | ShineBright Solutions, Gauteng (fixed prices on their website) |
| 16 L gas geyser, unit only | About R3,300 to R5,500 for budget and mid-range brands | Makro, Masons and Gas & Solar Appliances listings |
| Dewhot range, unit only | R2,369 (5 L) to R17,011 (30 L) | Dewhot's own price list (September 2026) |
Core Gas prices include the geyser, installation, travel, a pressure test and the gas CoC; a new installation includes up to 10 m of gas pipe and 15 m of water pipe; gas bottles are extra. A swap replaces an existing gas geyser in the same place.
Sources: the businesses named above, as they publish their prices; we checked each one on 8 November 2026. Every pro sets their own price, so use these to set a budget and ask for a written quote. The advice below was first written in April 2024; its old prices have been taken out.
Gas geysers, also known as gas water heaters, do not have any water reservoirs and heat the water as it passes through them.
Gas geysers with a smaller capacity (5l to 10l) are ideal for camping or heating water for a single tap or a kitchen sink.
Depending on the size of the gas geyser, you can run a shower, bath, washing machine, or main tap at the same time.
A gas geyser's capacity is rated by how much water it can heat in a minute, not the storage capacity meaning you can get a continuous flow of hot water for as long as you like.
What Factors Influence Gas Geyser Prices?
The following factors influence gas geyser pricing in South Africa:
- Brand of gas geyser (e.g. Dewhot, Kwikot, Atlas, Totai, Bosch, etc)
- Capacity of the gas geyser (e.g. 5l, 10l, 20l, etc)
- Accessibility to the geyser's installation location.
- The amount of work involved for the installation.
What Are the Benefits of Installing a Gas Geyser?
- Water is heated faster than with electric geysers.
- Running costs are lower.
- Extremely energy-efficient
- It can be used during power outages or load shedding.
- Environmentally-friendly
- It's ideal for living off the grid.
- Can be setup to be used when camping
Gas geysers are available in a range of sizes and types
There are three types of gas geysers:
- Gas geysers, standard or manual
- Gas geysers with a constant temperature
- Gas geysers with a forced fan
Don't know which to choose?
Standard/Manual Gas Geysers
If you only require one tap with hot water and reside in a tiny flat or single-story home, standard or manual gas geysers are ideal.
Standard (manual) geysers come in sizes ranging from 5 to 20 litres and are ideal for single people on a budget.
The following are some of the advantages and disadvantages of typical gas geysers:
- A cost-effective alternative for water heating
- Simple to use
- Water temps can be set during winter or summer.
- It is not possible to give hot water to many taps.
- It is not possible to set a precise temperature.
- Upstairs, there is no water supply.
- Sensitive to changes in water pressure
- It will necessitate the use of a weather cover.
Gas Geysers with Temperature Control
Gas geysers with a constant temperature setting allow you to control the temperature of your water precisely. They look like ordinary gas geysers, but they contain a keypad where you can regulate the temperature of your water. The geyser will then automatically adjust the temperature to the desired temperature.
The following are some considerations for constant-temperature gas geysers:
- Gas geysers that are inexpensive and provide the desired water temperature
- Ideal for singles who live alone in a tiny space.
- Maintains a consistent temperature in the water
- It's possible to run two hot taps at the same time, but it's not recommended for multi-story homes.
Gas Geysers with a Forced Fan
Although forced fan gas geysers have a high upfront cost, they will save you a lot of money in the long run due to their great gas efficiency. You will need professionals, like Geysers Only Team, to install them, but it is worth it.
They usually have extended warranties and can be incorporated into your existing solar water system.
The following are some of the advantages and disadvantages of forced fan gas geysers:
- Extremely gas efficient
- It is possible to pick a precise water temperature
- Not affected by changes in water pressure
- Frequently have a ten-year warranty.
- Perfect for multi-storey buildings
- Can be powered by your generator
- It's possible to connect it to a solar water system
- Can provide hot water to multiple taps at once
- The ignition system and control units require an electrical connection
- The most costly type of gas geyser
Ready to install?
Manufacturers of the Best Gas Geysers
You have a lot of options when it comes to gas geyser brands! In South Africa, the following are the most popular gas geyser brands:
- Kwikot
- Rinnai
- Paloma
- Dewhot
- Ariston
- Atlas
- Total
- Bosch
- Typhoon
If you want to see the price of electrical hot water geysers such as Kwikot and Heattech visit our Price of Electric Geysers page
No matter what type of electrical geyser you are interested in our partners can supply them. Contact Local Pros today for an obligation-free quote.
Current demand for gas installers
Local Pros received 5512 enquiries for this service across its covered areas in the last 12 full months. The busiest month was July 2026.
These are requests for quotes, not completed work or a price estimate.
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