Geyser Installation Guide
Most geyser problems start on installation day. Here is what a correct fitting looks like, so you can check your plumber's work. Installation is not included in our prices unless the product page says so.
Updated 11 November 2026
Electric geyser installation
- Mount on a strong wall that can carry the full weight of water.
- Use a separate, heavy-duty socket or breaker with an earth wire.
- Fit the safety valve on the cold inlet; never block its outlet.
- Fill the tank with water before switching on.
- Fit vertical models upright; for a low ceiling choose a horizontal model, such as Canon EWHH-50 Litre Electric Geyser.
Gas geyser installation
- Fit outside, on the roof, or in an open, ventilated space.
- Run the flue pipe outdoors with no blockage.
- Use a proper gas valve and check every joint with soapy water.
- Tell the installer whether you use Sui gas or LPG so the jet is set correctly.
- For instant gas geysers that use batteries for ignition, keep spare batteries ready.
Can a geyser be installed outside?
Gas tank geysers are usually fitted outside or on the roof, which is the safest place for them. Electric geysers should be protected from rain and direct weather unless the manufacturer says they are made for outdoor use.
Geyser installation charges
Installation is not included in our price unless the product page says so. The charge depends on your city, the wall or roof, how long the pipes are and which fittings are needed. A gas geyser also needs a gas fitter for the gas line and flue. Ask the plumber or the brand's service centre for a full quote before work starts, and check that it includes the safety valve and earth wire.
Questions to ask before installing
- Is the wall or roof strong enough when the tank is full?
- Is there an earth wire on the socket?
- Where will the safety valve drain?
- Which pipe is used (GI or PPR) and is it rated for hot water?
- Is the gas flue going outdoors?
Wire, breaker and earthing for an electric geyser
- Use a dedicated circuit for the geyser, not a shared socket.
- Wire and breaker must match the geyser's watts; a 3000 W or 4000 W hybrid element needs heavier wiring than a 1500 W small geyser.
- Connect the earth wire to the geyser body.
- Add an ELCB or RCD if your board does not have one.
- Keep the switch outside the bathroom where possible.
Have a qualified electrician do this work.
