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Gas geyser installation

Only a registered gas installer may legally install a gas geyser in South Africa.
Find an Installer

3 steps to find a certified gas geyser installer

How it works

Every installer we connect you with is registered to install gas geysers and trained on the Dewhot range, so your geyser is installed legally and safely, with a Certificate of Compliance to prove it.

Send us your details

Tell us what you need and where you live. It only takes a minute.

We connect you to an installer

A registered gas installer working in your area, trained on the Dewhot range.

They quote, then install

Once accepted and installed, you receive a Certificate of Compliance.

Request an installation quote

What it costs

Gas geyser installation price guide

(updated 09-2026)

Gas geyser installation cost depend on where your geyser is installed and how far the gas and water pipes need to run. Indoor installations generally cost around R1,000 more because they need a flue and ventilation.

Gas installation + Certificate of Compliance

R2,500 – R5,000

Plumbing

R2,500 – R5,000

Filled gas bottles

19kg – around R1,300–R1,400 each
48kg – around R2,800–R3,200 each

These prices are a guide and may vary, they also exclude the price of a gas geyser or any gas accessories, weather box covers or flues and cowls.

Your installer will check what you need and give you a final price before any work starts.

Why it matters

Why use a registered gas installer?

Only a registered gas installer can legally install your gas geyser. They make sure the installation is safe and compliant, and issue the Certificate of Compliance you may need for your warranty, insurance and when selling your home.

Why choose an installer trained on Dewhot products?

Our preferred gas installers have had extensive Dewhot product training, are very familiar with gas appliances, and work very closely with our expert technicians

How it works

Installers across South Africa

We connect you with registered installers nationwide — across Gauteng, Western Cape, KwaZulu-Natal, Eastern Cape and Free State. Tell us your town and we’ll put you in touch with someone near you.

Get a Quote

Gas geyser installation FAQs

Your gas geyser must be installed by a gas installer registered with SAQCC. It’s illegal to install one yourself. We also recommend a registered plumber for the water connections. Send us your details and we’ll connect you with a registered installer in your area who has been trained on the Dewhot range.

Find an Approved Installer

 

Gas installation and a Certificate of Compliance usually cost R2,500–R5,000, plus R2,500–R5,000 for plumbing. The price depends on where your geyser is installed and how far the gas and water pipes need to run. Indoor installations generally cost around R1,000 more because they need a flue and ventilation.

You’ll also need filled gas bottles: a 19kg bottle costs around R1,300–R1,400, and a 48kg around R2,800–R3,200.

These prices exclude the geyser.

Prices are a guide only, based on typical installations in September 2026, and may vary. Your installer will confirm a final price before any work starts.

A straightforward outdoor installation usually takes about half a day to a day. Indoor installations, which need a flue, and jobs with longer pipe runs or new plumbing can take longer. Your installer will give you a time-frame with your quote.

As early as possible. Planning for gas during the early stages of your build makes it much easier to incorporate the necessary gas lines, appliance locations and installation requirements.

Avoid leaving it until the final stages of the build. Early planning gives you more flexibility and can prevent unnecessary changes later.

Yes. Your registered gas installer issues a Certificate of Compliance (CoC) once your geyser is installed, confirming it’s safe and legal to use.

Your CoC is required for:

  • a valid Dewhot warranty
  • insurance claims
  • selling your house

Yes. Dewhot gas geysers can be installed anywhere in South Africa, including coastal and windy areas, with the right protection. Our coastal range keeps your geyser running reliably and helps it last:

  • Weather box: a galvanised steel cover that shields your geyser from wind, rain and salty sea air
  • Cyclone flue and cowl: keeps wind and rain out of the flue, so your geyser runs steadily in stormy weather
  • Tectyl treatment: a protective coating that guards against corrosion near the sea

Your installer can recommend the right combination for your home. Regular servicing keeps your geyser in top condition.

Indoor installation

Only gas geysers designed for indoor installation can be installed indoors. They must have a flue to expel the combustion gases, and the room needs proper ventilation.

Dewhot indoor models:

  • Fan Forced: the 20L room-sealed model
  • Constant Temperature: the 12L
  • Eco-Flow Low Pressure: the 5L, 8L and 12L

Outdoor installation

All four Dewhot types can be installed outdoors, protected by a weather box.

Your registered gas installer will confirm the right position for your home and issue the Certificate of Compliance.

Geyser Buying Guide
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