What drives the price of a split, ducted or heat pump hot water installation, and the federal and state incentives and gas rules that apply in 2026.
Heating and cooling installations in Australia are priced mostly by capacity and complexity: how many kilowatts you need, whether the system is a single wall split, several heads on one outdoor unit or a ducted system with zones, and how far the installer has to run pipes, cables and condensate drains. Heat pump hot water is priced by tank size, product type and what has to be removed or rewired.
Start with the installation cost overview, then go deeper on the decision that matters for your home: ducted versus split systems or heat pump hot water prices.
The incentive guides explain the national small-scale technology certificates built into most heat pump water heater quotes, Victoria's VEU discounts and Solar Victoria hot water rebate, the NSW Energy Savings Scheme and the Home Energy Upgrades Fund loans. If you live in Victoria, read the gas hot water and new homes rules before your old gas unit fails.
All prices on this site are illustrative examples, not market rates or quotes. Incentive amounts change often; each guide names the official page to confirm the figure on the day you sign.
Costs, Price Factors and 2026 Rebates
How ducted reverse cycle and split system air conditioning compare in Australia on installed price, running costs, zoning, noise, looks and future replacement.
Costs, Price Factors and 2026 Rebates
What a heat pump water heater costs to supply and install in Australia, how integrated and split units differ, tank sizing, installation extras and incentives.
Costs, Price Factors and 2026 Rebates
What a reverse cycle split system, ducted system or heat pump water heater costs to install in Australia, what drives the price and which 2026 incentives apply.
Costs, Price Factors and 2026 Rebates
How the $1 billion Household Energy Upgrades Fund finances heat pumps and air conditioners through partner lenders, what to compare and how it differs from interest-free plans.
Costs, Price Factors and 2026 Rebates
How NSW households get Energy Savings Scheme discounts on heat pump water heaters and efficient air conditioners, the published amounts, the PDRS link and the paperwork.
Costs, Price Factors and 2026 Rebates
How small-scale technology certificates reduce the price of heat pump and solar water heaters, the shrinking deeming period to 2030, eligibility and how to check a quote.
Costs, Price Factors and 2026 Rebates
What Victoria's move away from household gas means for your hot water and heating, the end-of-life replacement rule from March 2027, new homes, exemptions and gas abolishment.
Costs, Price Factors and 2026 Rebates
How Victorian Energy Upgrades discounts and the Solar Victoria hot water rebate work for heat pumps and reverse cycle systems, eligibility, stacking order and checks.
