The energy efficiency requirements for installing water heaters are for new or replacement water heaters.
For most homes, it means installing:
- a low emission water heater, such as a high efficiency gas, solar or electric heat pump system
- water efficient shower heads or flow restrictors.
Find out which water heater can be installed
There are different types of water heaters including electrical, gas and solar hot water systems – which work in different ways and have different running costs.
The tool below will identify the type of water heater your home needs to meet the requirements.
Building classifications
Class 1A: Single detached dwelling or two or more attached dwellings separated by a fire-resistant wall, including a maisonette, row house, townhouse, and single-storey flats or units.
Class 1B: Boarding/guest house or hostel not exceeding 300m2 with no more than 12 residents.
Class 2: Multi-storey building containing two or more sole-occupancy units, where each is a separate dwelling.
Installing a water heater
Only licensed or registered plumbers can install water heaters - licensing public register
Your plumber must give you a Certificate of Compliance (eCOC) for the completed work.
Eligible solar or electric heat pump water heaters are entitled to small-scale technology certificates (STCs), which can assist with purchase costs.
Plumbers' water heater information line
Ph: 1300 883 019 - help for plumbing trades
Monday to Friday
9.00 am to 5.00 pm
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