Australian New Zealand Standard AS/NZ 4234:2008 Solar Water Heaters - Heated Water Systems - Calculation of Energy Consumption - Victoria


You will be required to comply with this standard if you are a plumber and supply or install solar water heaters in Class 1 residential buildings such as sole occupancy homes and guest houses.

This standard sets out a method of determining the annual performance of domestic solar and heat pump water heaters using a combination of test results for component performance and a mathematical model to determine an annual load cycle task performance. This procedure is applicable to solar water heaters with integral boosting or preheating into a conventional water heater and to heat pump water heaters.

Please consult the responsible agency for more information and to ascertain the level of compliance (if any) that may be required.

Service type

Code of Practice

A code of practice is a set of rules which details how people in a certain industry should behave. A code of practice can be defined as a result of legislation or by industry regulators and bodies.

Act(s) name

Building Act 1993 Victoria

Regulation(s) name

Plumbing Regulations 2018 Victoria

Administering agency

Victorian Building Authority

Contact details

Contact Email, Phone and Address Details for this service in simple two column table format, header then data.

Please use these contact details for help or more information:


Victorian Building Authority

Operating address: Goods Shed North
733 Bourke Street
Docklands, Victoria 3008
Mailing address: PO BOX 536
Melbourne, Victoria 3001
Phone: 1300 815 127
Fax: 03 9618 9062
Website: Victorian Building Authority (Opens in new window)