Energy
  Government of SA - Department for Transport, Energy and Infrastructure
New Homes, Alterations and Additions

Quick Guide for Home Owners

Water heaters installed as part of the construction works of new homes, alterations or additions are subject to development approvals under the Development Regulations 1993. Regardless of when the water heater is installed, it should be installed in accordance with the development approvals provided.

Different requirements apply for the following different classes of homes:

The information below details what is required, depending on when the development approvals were provided:

Approvals Provided Prior to 1 July 2006

No restrictions exist on the water heater that can be installed.

Approvals Provided 1 July 2006 to 30 June 2008

Standards apply for new class 1a buildings, alterations and additions where reticulated gas is available in a street, easement or the like that is adjacent the property.

Water heaters need to be gas, solar or electric heat pump. Conventional electric water heaters are not permitted. See Column A in the table below.

The above standard does not apply for homes where reticulated gas is not available, or for class 1b or class 2 buildings.

Approvals Provided 1 July 2008 to 30 April 2009

Standards apply for new class 1a and 1b buildings, alterations and additions, state-wide.

Water heaters need to be gas, solar or electric heat pump. Conventional electric water heaters are not permitted. See Column A in the table below.

The above standard does not apply for class 2 buildings.

Approvals Provided On or After 1 May 2009

Standards apply for new class 1a, 1b and 2 buildings, alterations and additions, state-wide. Shared water heaters in class 2 buildings are exempt.

In class 1a and 1b buildings, water heaters need to be high efficiency gas, solar or electric heat pump. Low efficiency gas and conventional electric water heaters are not permitted. See Column B in the table below.

For water heaters serving a single apartment in a class 2 building, low efficiency gas and conventional electric water heaters are permitted. See Column C in the table below.

 

Water Heater Options
Water Heater Type Column A Column B
(up to 700 L)
Column C
(up to 700 L)
Electric Can’t be installed Can’t be installed Any system
Solar (Electric Boost) OR
Electric Heat Pump

Serving a house with up to 2 bedrooms
14 RECs or more**

 

Small systems
(tank volume 220 L or less)*
18 RECs or more**
Eligible for any number of Renewable Energy Certificates
Medium systems
(tank volume between 220 L and 400 L)*
28 RECs or more**
Serving a house with 3 or more bedrooms
22 RECs or more**
Large systems
(tank volume 400 L to 700 L)*
40 RECs or more**
Gas Instantaneous (Bottled or Mains) An energy rating of at least 2.5 Stars An energy rating of at least 5.0 Stars An energy rating of at least 2.5 Stars
Gas Storage (Bottled or Mains)
Solar (Gas Boost) Eligible for any number of Renewable Energy Certificates Eligible for any number of Renewable Energy Certificates Eligible for any number of Renewable Energy Certificates
Solar (Wood Boost, no other boosting) Any system Any system Any system
Wood Combustion (no other boosting)

 

Note *: For multi-tank solar systems, ie where there is a solar preheat tank that feeds into an instantaneous water heater or other storage water heater, use the volume of the preheat tank only as follows:
  Small: 110 L or less
  Medium: Between 110 L and 200 L
  Large: 200 L to 350 L
     
Note **: RECs (Renewable Energy Certificates) are based on Office of the Renewable Energy Regulator (ORER) Zone 3, regardless of the actual zone in which the water heater js installed.

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