Contact Building and Energy
For licensing and technical enquiries
Contact us
Building and Energy general queries
Tel: 1300 489 099
Fax: (+618) 6251 1501
be.info@demirs.wa.gov.au
This technical note has been issued to advise the plumbing industry of the mandatory requirements and best practice when installing flow and return lines from solar water heaters/panels on the roof to auxiliary water heaters or storage tanks at finised surface level.
Last modified: