The Five Stages Of Replacing a Hot Water System

18 July 2023
 Categories: , Blog

Replacing a hot water system is a task that requires specialist skills and is, therefore, something that is best carried out by a qualified plumber. In Australia, installing boilers, for example, is regulated so you could fall foul of the law if you attempt this work yourself. Read on to learn more about the processes involved in hot water system replacement.

System Drainage

The first step is to drain the old hot water system so that it can be removed. If you start trying to take radiators off your home's walls without doing this, then you are likely to end up with dirty water running over your carpet. Once emptied, your plumber will first disconnect the pipes of the old system from the boiler to ensure there is nothing left in the central heating or hot water distribution pipes that can leak. Only after this stage is complete will the old pipes, radiators and — where appropriate — hot water fixtures, be removed.

Boiler Disconnection

With the old pipes and hot water infrastructure taken away, the next stage involves removing the old boiler. Usually, this will mean turning off the mains gas supply, in the case of gas-fired boilers, of course. In addition, old boilers should be isolated from the mains electrical supply. Usually, this can be done from an isolation switch or by tripping the unit so it is off and safe to remove.

New Boiler Installation

Your hot water system replacement will usually involve fitting a new boiler. Today, many consumers are opting for ground-source heat pumps or electrically powered hot water boilers instead of gas-fired models. Whichever you choose to opt for, it will be usual for your hot water system replacement to begin with the installation of a new boiler.

Hot Water Distribution Installation

Your boiler needs to connect to your home's plumbing system. Consequently, the next stage is to fit hot pipes and central heating elements that will allow the flow of hot water to reach every location throughout your property. Not every hot water system replacement involves replacing all the pipes and fixtures. However, given the disruption fitting a new system inevitably causes, doing so in one fell swoop is often worth it even if some of your old pipes are still serviceable. Seek professional guidance from your plumber about which element, if any, you should keep.

System Commissioning

The final stage occurs when hot water system replacement is commissioned. Once connected, your plumber will test the system to ensure that it functions correctly and safely with no leaks. This will involve confirming that all the connections are secure and verifying the system heats water to the desired temperature. Checks on the pressure of the system are also part of the final commissioning stage.

Contact a plumber to get started on your hot water system replacement today.