Electric Hot Water System Installation

The size of your system will depend on how much water you use. You should take into account how many bathrooms you have, how many people live in the home, daily showers, water for gardening etc.
Storage tanks range from around 125L for a small homes to 400L or more for larger families. Here is a general guide just to give you a better idea of what size system you need:

2 people: 125–160L
3 people: 160–200L
4 people: 200–250L
5 people: 250–315L

These sizes assume average household usage (showers, washing, laundry).

Factors that might push you up the range include multiple bathrooms, frequent baths, or a family that showers one after another.

For larger households (6+ people) or high usage, consider 315–400L or look at a continuous flow system instead, which heats on-demand and doesn’t have a storage limit.

We’ll assess your household during your quote and recommend a size that won’t leave you running cold.

A storage tank heats and stores a set volume of water ready to use, which usually costs less upfront but means hot water is limited to what’s in the tank.

A continuous-flow (mains-pressure) system heats water on demand, so you get an unlimited supply, but it typically costs more to install and draws more power while running.

Which one suits you best depends on your household size, hot water usage, and budget. Storage tanks are great for smaller families or retirees, while a continuous flow system may suit large families with higher demands for hot water.

Often, yes.

A plumber can handle the tank, water connections, values and any compliance items. While the electrical connection to the unit must be completed by a licensed electrician by law.

If your installation needs electrical work, we’ll let you know and can coordinate this as part of the job so you don’t have to organise it separately.

A straightforward system swap can usually be completed within a few hours in a single visit.

Installations that involve relocating the unit, upgrading the electrical supply or fitting a larger system may take longer or require an electrician on site as well.

Yes, removing and disposing your old system is something our team handles so there’s no extra work required from you.

We install and work with all major brands, including Rheem, Dux, Aquamax, Thermann and Bosch.

If you have a preferred brand let us know and we can talk through it. If you’re not sure what suits your home, we can recommend a system based on your household’s needs.

Yes, we provide electric hot water system installations for homes and businesses throughout the Perth metropolitan area.