Thinking about installing or replacing your own hot water system?
- Luke Williams

- May 21
- 2 min read

While it may seem straightforward, hot water system installation is one job that should always be handled by a licensed plumber or gas fitter.
Whether you are upgrading an old unit or installing a completely new system, there are important safety, compliance and warranty considerations involved.
What’s involved in hot water system installation?
Installing a hot water system involves far more than simply connecting pipes.
A professional installation includes:
• Choosing the correct system size and type for your household
• Correct positioning and installation of the unit
• Safe connection of water, gas or electrical components
• Pressure and temperature valve setup
• Compliance with Australian standards and manufacturer requirements
Choosing the wrong system or installing it incorrectly can lead to ongoing performance issues and unnecessary costs.
What can go wrong with DIY hot water installation?
DIY hot water installations can create serious safety risks and may also void manufacturer warranties.
Common issues include:
• Gas leaks or unsafe gas connections
• Incorrect water pressure settings
• Electrical safety risks
• Water leaks and property damage
• Reduced system efficiency
• Non-compliant installations
• Warranty issues if the unit is not installed by a licensed professional
In many cases, repairs from incorrect installations end up costing more than professional installation in the first place.
When should you call a licensed plumber or gas fitter?
You should always contact a licensed plumber or gas fitter for:
• Gas hot water system installations
• Hot water system replacements
• Continuous flow system upgrades
• Electric hot water system installations
• Any hot water repairs involving pressure, gas or electrical components
Using a licensed professional helps ensure your system is installed safely, legally and correctly.
Hot water system installation in Adelaide
At Onboard Plumbing and Gas, we provide professional hot water system installations and replacements across Adelaide.
Based in Seaford and servicing all Adelaide suburbs, we can help with:
• Hot water system replacements
• New hot water installations
• Gas hot water systems
• Continuous flow systems
• Hot water repairs and upgrades
Our team focuses on safe, compliant workmanship and honest advice to help you choose the right solution for your home.
Need a hot water system replaced or installed?
Contact Onboard Plumbing and Gas today for professional hot water services across Adelaide.



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