The West Australian government give a subsidy to gas boosted solar hot water systems with a tank size of at least 250 litres.

Air & Water refer to the subsidy as SEDO for ease.

SEDO is $500 for natural gas and $700 for LPG.

Air and Water Residential offer the SEDO rebate at point of sale and complete the SEDO application.

SEDO is due to cease on 1st June 2013.

Details are available on West Australian Government Department of Finance website. See also solar water water heater subsidy scheme guidelines.