Hot Water System Upgrade

ACTIVITY SPECIFIC DEFINITIONS

Gas water heater or solar gas means a water heater that has a primary or boost fuel source of natural gas (methane) or LPG. Class 1 and class 2 dwellings are as defined by the National Construction Code.

ACTIVITY DESCRIPTION (SUMMARY)

Install or replace a water heater.

ACTIVITY ELIGIBILITY REQUIREMENTS

A new or replacement water heater installed to service a South Australian
• established class 1 dwelling, or
• class 2 dwelling (new or established), or
• Small energy consuming customer

The following is excluded:
• Installation of a water heater undertaken as part of class 1 building work requiring approval under the Development Act 1993 or the Planning, Development and Infrastructure Act 2016. This includes water heaters installed to service a new class 1 dwelling.

– Each REPS activity can only be provided once per address.

INSTALLED PRODUCT REQUIREMENTS

(1) Only gas, solar electric, solar gas or heat pump water heaters are included in the specification.
(2) Gas water heaters shall be rated at a minimum of 5 stars in accordance with AS4552 and listed in the Directory of AGA Certified Products.
(3)(a) Solar electric and gas boosted solar systems with a tank size ≤ 220 litres installed before 1 January 2022 shall earn ≥ 17 STCs for Zone 3.
(3)(b) Solar electric and gas boosted solar systems with a tank size ≤ 220 litres installed on or after 1 January 2022 shall earn ≥ 15 STCs for Zone 3.
(4)(a) Solar electric and gas boosted solar systems 220 < tank size ≤ 400 litres installed before 1 January 2022 shall earn ≥ 27 STCs for Zone 3.
(4)(b) Solar electric and gas boosted solar systems 220 < tank size ≤ 400 litres installed on or after 1 January 2022 shall earn ≥ 24 STCs for Zone 3.
(5)(a) Solar electric and gas boosted solar systems 400 < tank size ≤ 700 litres installed before 1 January 2022 shall earn ≥ 38 STCs for Zone 3.
(5)(b) Solar electric and gas boosted solar systems 400 < tank size ≤ 700 litres installed on or after 1 January 2022 shall earn ≥ 34 STCs for Zone 3.
(6)(a) Heat pump water heaters installed before 1 January 2022 shall earn ≥ 27 STCs when assessed under AS/NZS 4234 for Zone 3 and shall earn ≥ 26 STCs when assessed under AS/NZS 4234 for Zone 4.
(6)(b) Heat pump water heaters installed on or after 1 January 2022 shall earn ≥ 24 STCs when assessed under AS/NZS 4234 for Zone 3 and shall earn ≥ 23 STCs when assessed under AS/NZS 4234 for Zone 4.

MINIMUM INSTALLATION REQUIREMENTS

(1) The water heater must be installed in accordance with relevant installation standards including, but not limited, to AS/NZS 3500:2018 (plumbing and drainage standards); AS/NZS 3500.4:2018 (Plumbing and drainage – Heated water services), AS 4552:2010 (gas hot water systems); AS/NZS 60335.2.21:2013 (electric storage water heaters); AS/NZS 60335.2.35:2004 (instantaneous water heaters).
(2) All products shall be installed in accordance with the manufacturers’ installation instructions and specifications.
(3) Any replaced water heater must be removed from the premises.
(4) The activity must be completed and certified in accordance with any relevant code or codes of practice and other relevant legislation applying to the activity, including any licensing, registration, statutory approval, activity certification, health, safety, environmental or waste disposal requirements.
(5) Where required, a Certificate of Compliance must be provided and retained for verification purposes.